Answer: C.
Explanation:
The ultraviolet catastrophe.
Which of the following is the correct equation for kinetic energy?
KE = 1/2mv^2
KE = mgh
KE = Fd
KE = mv
[tex]\boxed{KE=\dfrac{1}{2}mv^2}[/tex]
Hope this helps.
r3t40
Answer:
[tex]{\boxed{\sf{\red{K.E = \frac{1}{2} mv^{2}}}}}[/tex]Explanation:
[tex]{\underline{\underline{\bf{\orange{What \: is \: Kinetic\: Energy\:?}}}}}[/tex]
The energy possessed by a body by virtue of its motion.[tex]{\underline{\underline{\bf{\green{Formula\:Derivation\::-}}}}}[/tex]
[tex]\star\:\sf{Consider,}[/tex]
Body of mass 'm' is moving with a velocity 'v'.A uniform force 'F' opposes the motion of a body and brings it to rest after a displacement 's'[tex]:\implies\:\:\sf{v^{2} -u^{3} = 2a}[/tex]
[tex]:\implies\:\:\sf{0-v^{2} = 2as}[/tex]
[tex]:\implies\:\:\sf{-v^{2}=2as}[/tex]
[tex]:\implies\:\:\sf{a = \dfrac{-v^{2}}{2s}}[/tex]
The opposing force on the body,
F = ma = -mv²/2sBy Newton's 3rd law, the force applied by the body :-
[tex]:\implies\:\:\sf{-F = -\bigg( -\dfrac{mv^2}{2s}\bigg) = \dfrac{mv^2}{2s}}[/tex]
[tex]{\boxed{\bf{W = Force \times Displacement}}}[/tex]
[tex]:\implies\:\:\sf{W = F \times S}[/tex]
[tex]:\implies\:\:\sf{W = \dfrac{mv^2}{2s}\times s = \dfrac{1}{2}mv^2}[/tex]
We know that, Work done will be stored as kinetic energy in the body.[tex]\star\:\:{\underline{\boxed{\sf{\red{K.E = \dfrac{1}{2}mv^{2}}}}}}[/tex]
What is the correct orientation of the bar magnet, based on the magnetic field lines shown?
Answer:
C. South pole on the left end and north pole on the right end
Explanation:
From the figure, we can conclude that the poles of the magnet are on either sides of the magnet
Therefore, options 1 and 2 are excluded
It is a convention that the magnetic field lines move out of the north pole of a magnet and into the south pole of the magnet
From the figure, we can see that the magnetic field lines are moving out from the right end and into the left end
This means that the north pole is at the right end and that the south pole is at the left one
Hope this helps :)
Answer: South Pole on the left end and North Pole on the right end
Explanation:
asap? This heating curve is produced when a certain substance is heated.
Which best compares the particles of the substance when it is in region 1 with the particles of the substance when it is in region 3?
The particles are slower in region 3.
The particles are more orderly in region 1.
The particles have more kinetic energy in region 1.
The particles have less freedom of motion in region 3.
Answer: the particles are more orderly in region 1
Explanation: region 1 is when the substance is a solid and as it is heated the particles move further apart and have more kinetic energy.
The option best compares the particles of the substance when it is in region 1 with the particles of the substance when it is in region 3 is the particles are more orderly in region 1
What is heating?When the temperature is increased , the body or particle is said to be heating.
Region 1 is where the substance is a solid. The temperature of solid is increased. It heated the particles and they move further apart. They will have more kinetic energy as the temperature is increased.
Thus, the option best compares the particles of the substance when it is in region 1 with the particles of the substance when it is in region 3 is the particles are more orderly in region 1.
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During photosynthesis,
Answer: Water is oxidized during photosynthesis.
An impulse is applied to a moving object with a force of 10 N for 2 seconds. Calculate the change in momentum of the object.
Answer:
The correct answer to this question is 20 N*s.
Explanation:
To solve this problem, we must remember that impulse is equal to change in momentum.
Change in momentum = impulse
Now, we must use the equation for impulse to solve the problem.
Impulse = force * time
Next, we can just plug in the given information to find our answer.
Impulse = 10 N * 2 s
Impulse = 20 N*s
As we proved earlier, the impulse is equivalent to the change in momentum, and thus the change in momentum is equal to 20 N*s as well.
Hope this helps!
Final answer:
The impulse applied to the object is calculated by multiplying the force (10 N) by the time interval (2 seconds), resulting in a change in momentum of 20 kg·m/s.
Explanation:
Calculating the Change in Momentum
To calculate the change in momentum (also known as impulse), we can use the formula:
Impulse (J) = Force (F) × Time (t)
In this problem, the force applied is 10 N and the time during which the force is applied is 2 seconds. By multiplying these values, we can find the change in momentum.
Impulse (J) = 10 N × 2 s = 20 kg·m/s
The change in momentum of the object is therefore 20 kg·m/s.
This means that the object experienced a momentum change of 20 kg·m/s due to the impulse applied. This concept is directly proportional to the duration of the force applied as represented in various physics problems and examples.
Ryan is examining the energy of the particles in a bar of gold. What is Ryan most likely studying?
Answer:
Ryan is examining the energy of the particles in a bar of gold. Ryan is most likely studying internal energy
Explanation:
Ryan is examining the energy of the particles in a bar of gold. Ryan is most likely studying internal energy.
What is energy?The energy is the ability to do work. It can be external or internal.
Any object is made up of atoms or molecules or particles equal to the Avogadro number. It has the energy occupied into its volume. This energy is contained by each and every particle of the atom.
The study of the gold particles is the study of internal energy.
Thus, Ryan is most likely studying internal energy.
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a 47 kg person in a rollercoaster moving through the bottom of a curved track of radius 47.7 m feels a normal force of 895 N. What is the net centripedal force acting on the person
Answer:
434.4 N
Explanation:
There are two forces acting on the person when it is at the bottom of the trajectory:
- Its weight W = mg (m= mass, g= acceleration of gravity), acting downward
- The normal reaction N, acting upward
So the net centripetal force Fc is given by
[tex]F_c = N- mg [/tex]
Substituting:
N = 895 N
m = 47 kg
We find:
[tex]F_c = 895 N - (47 kg)(9.8 m/s^2)=434.4 N[/tex]
Answer:
434 also works for acellus
Explanation:
What is one action a person can take to help ensure ability to participate in physical activity throughout life?
Answer:
Answer: B
Choices:
A)Apply sunscreen
.B)Eat steadily.
C)Do unlimited exercise.
D)Maintain flexibility.
Answer:
Exercise regularly
Explanation:
just took the test
newtons View of Arrangement of the Universe
Answer:
Newton was able to state the Law of Universal Gravitation: “Every particle of matter attracts every other particle with a force proportional to the product of the masses of the two particles and inversely proportional to the square of the distance between them.” Stated more simply, the gravitational attraction between two bodies decreases rapidly as the distance between them increases.
Explanation:
this means if you put Newton’s three Laws of Motion which are:
01 - Every body continues at rest or in motion in a straight line unless compelled to change by forces impressed upon it. (Galileo first formulated this, and Newton recast it.)
02 - Every change of motion is proportional to the force impressed and is made in the direction of the straight line in which that force is impressed. (A planet would continue outward into space but is perfectly balanced by the Sun’s inward pull, which Newton termed “centripetal” force.)
03 - To every action there is always opposed an equal reaction, or the mutual action of two bodies on each other is always equal and directed to contrary parts.
Sort the sentences based on whether they are correct or incorrect. Water boils at a temperature below 100°C at higher altitudes. Water expands on freezing. Water contracts on freezing. Water boils at a temperature below 100°C in a pressure cooker. The density of water decreases on freezing. Water boils at 100°C under normal pressure.
Answer:
Correct sentences
Water boils at a temperature below 100°C at higher altitudes-At higher altitudes where atmospheric pressure is low, less heat is required to make water boil.Increase in elevation, decreases the amount of energy required to make water boil.The boiling point of water is less at higher attitudes because the atmospheric pressure is already low thus less vapor pressure is needed to create a balance thus less heat will be required.Water expands on freezing.Before 4°C water behaves normal in that it contracts as it cools.However, at 4°C it starts to expand at a smaller margin until the freezing point is reached.During freezing, it expands.The density of water decreases on freezing.As water cools towards 4°C,it contracts.The contraction will result to increased density of course.However, when it reaches 4°C the behavior changes because it attains maximum density at 4°C.Beyond this point, water density reduces as it nears the freezing point.Water boils at 100°C under normal pressure.The boiling point of at normal atmospheric pressure is 100°C.This is for the case of pure water.However, adding salt to water will increase its boiling point even when pressure is normal.Incorrect sentences
Water contracts on freezing.Water expands on freezing.The contracting effect is experienced before water starts to freeze.This is before it reaches 4°C.At 4°C the expansion process starts at a smaller margin and it reaches the highest during freezing.Water boils at a temperature below 100°C in a pressure cooker. In a pressure cooker, water boils at 121°C.This is because the water is sealed thus the pressures inside are increased and heat is trapped inside.This trapped heat further causes the water to boil faster as it it supplies extra energy to heat the water.which is a form of ptential energy
Answer:
There are many forms of potential energy, including, kinetic energy, gravitational, magnetic, electrical, chemical, and elastic potential energy.
Fluorine and chlorine molecules are blamed for
Answer:
Destroying ozon molecules
Explanation:
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how is science controlled by the governerment
Answer:
the government's use and control of science. To clarify, I live in the U.S. I'm only interested in how the U.S. government dictates science. If you have any information or links that could educate me on this topic, I would be appreciative.
Explanation:
Answer:
Science is controlled by the government since, in addition to the fact that any scientific advance requires government financial support, it is constantly monitored, in order to "avoid" dangerous advances.
Explanation:
Unfortunately, a great scientific advance can require many funds, which is why scientists usually go to private companies or the government for it to be financed, but even more so, when a scientist carries out a study financed by himself, which leads to an advance a novel scientist, is constantly monitored by governmental entities to identify whether or not such progress represents a danger to the nation or if they must appropriate it.
Displacement is distance combined with
direction.
speed.
velocity.
magnitude.
The correct answer is A. Direction
Explanation:
The word "displacement" is used to describe the change in the position of a body or object. Moreover, displacement involves direction (vector of movement) because it considers not only the distance the body moved but also the initial and final position of it. Indeed, the displacement is determined by drawing a straight line between point A (initial position) and point B (final position), which helps to determine the direction vs. movement of the body. According to this, displacement is distance combined with direction.
Displacement of an object is the distance of that object combined with the direction. Option A is the correct option.
What is displacement and distance?Displacement is the shortest distance between the initial point to the final point. Displacement is the vector quantity , which means it has both magnitude as well as direction.
Let suppose a object move on a circular path, and stop where, the object started taking a full round. Then the displacement travelled by the object is zero, as the initial and final point is same and body does not displace any amount from its initial position.
Distance is the total amount of space between the two points, in a particular path. Distance is the scaler quantity, which has only magnitude and not the direction.
Let suppose a object move on a circular path, and stop where, the object started taking a full round. Then the distance travelled by the object equal to the circumference of the circular path.
As displacement is the vector quantity while the distance is scaler quantity. This means that the displacement has both magnitude as well as direction, whereas the distance has only magnitude and not the direction.
Thus, by adding the direction with the distance travelled by an object gives the displacement of that object.
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Which of the following is a mixture?
The correct option is c
Sand, choice C, is the correct answer because it is a mixture of various minerals and rocks. Silicon dioxide, carbon dioxide, and silicon are pure substances, not mixtures.
Explanation:The correct answer to your question, 'Which of the following is a mixture?' is C. sand.
Sand is considered a mixture because it can be composed of various types of minerals and rocks, like silicon dioxide which is found in quartz. However, the other components in the list, silicon dioxide, silicon, and carbon dioxide, are not mixtures.
Silicon dioxide, which may take crystalline or amorphous forms such as quartz or opal, and carbon dioxide, which is a discrete molecule without continuous bonds throughout its structure unlike silicon dioxide, are both pure substances rather than mixtures. Silicon is an element in its pure form, and it does not contain any other substances mixed into it, therefore it is also not a mixture.
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The complete question is here:
Which of the following is a mixture?
A. silicon dioxide
B. silicon
C. sand
D. carbon dioxide
Provide the following information for each of the three types of radiations from naturally radioactive materials. Be sure to include the following:
Charge
Mass
Relative penetrating power
The effect an electric field would have on it
Alpha radiation: Particles. Each alpha particle is a little bundle of 2 protons and 2 neutrons ... identical to the nucleus of a Helium atom.
Charge . . . +2 elementary charges
Mass . . . 4 Atomic Mass Units
Relative penetrating power . . . low
The effect an electric field would have on it . . . Since the alpha particle has a positive charge, it's repelled by other positive charges, and attracted toward negative charges.
Beta radiation: Particles. Each beta particle is an electron.
Charge . . . -1 elementary charge
Mass . . . 0.00055 AMU
Relative penetrating power . . . medium
The effect an electric field would have on it . . . repelled by other negative charges, and attracted toward positive charges.
Gamma radiation: electromagnetic wave, verrrrry short wave, high frequency
Charge . . . electromagnetic wave, no charge
Mass . . . electromagnetic wave, no mass
Relative penetrating power . . . high
The effect an electric field would have on it . . . electromagnetic wave, no effect
which of the following has the greatest impact on an ecosystem migratory animals predation human inference
Answer:
human interference
Explanation:
Think of the hybrid lady bug..introduced to control insects on crops.
now they are reproducing rapidly, eating natural ladybugs, and other helpful insects..I haven't seen a red ladybug for years. in nw Illinois..
Human interference generally has the greatest impact on ecosystems, surpassing the effects of migratory animals and predation. Habitat destruction, pollution, introduction of non-native species and diseases, and climate change driven by human activities all contribute to significant ecological changes.
The impact of human interference on ecosystems is often more significant than that of migratory animals or predation alone. Humans have altered landscapes and introduced new challenges for wildlife, such as habitat destruction for urbanization and farming, pollution, and the introduction of non-native species. These activities can lead to declines in population and diversity, particularly for migratory species that rely on specific habitats. In Africa, for instance, migratory birds are greatly affected, with changes in land use and climate impacting their numbers significantly. Moreover, the introduction of diseases and predators by humans can have cascade effects on ecosystems, leading to multiple extinctions. Climate change, largely driven by human activities, further exacerbates these issues by disrupting migration patterns and causing habitat loss.
In certain cases, such as the Four Corners drought and subsequent rise in deer mouse populations leading to a spike in Hantavirus cases in humans, we see direct repercussions of ecosystem changes on human populations. Although migratory animals and predation play roles in ecosystem dynamics, the scale and rapid pace of human impacts typically overshadow these natural processes. It should be noted, however, that ecosystems are complex, and the interplay between different factors can often lead to unexpected outcomes and feedback loops.
which of the following objects is in static equilibrium?
a- an apple falling from a tree
b- a bicycle sitting on the ground
c- a motorcycle speeding up
d- a car moving at a constant velocity
Answer:
b- a bicycle sitting on the ground
Explanation:
'Static' means it's not moving.
So, only the answer listed as "a bicycle sitting on the ground" corresponds to that condition.
All others possible answers describe something that is moving (an apple falling, a motorcycle accelerating, a car moving at a constant speed). Even if they are going at a constant speed, they are moving, so not static.
A bicycle sitting on the ground is in static equilibrium because it is at rest, and there are no unbalanced forces acting on it. Objects that are accelerating or moving are not in static equilibrium. Only objects at rest can be in static equilibrium.
To determine which object is in static equilibrium from the given choices, we need to understand what static equilibrium means. An object is in static equilibrium when it is at rest or moving with a constant velocity, and there is no net force or net torque acting on it.
An apple falling from a tree is not in static equilibrium because it is accelerating due to gravity.A bicycle sitting on the ground is in static equilibrium because it is at rest, and there are no unbalanced forces acting on it.A motorcycle speeding up is not in static equilibrium as it is accelerating.A car moving at a constant velocity is in dynamic equilibrium but not static equilibrium since it is moving.Therefore, the correct answer is (b) a bicycle sitting on the ground.
Which of the following is not used to measure wind?
O
A. psychrometer
O B. wind sock
O C. weather vane
O D. anemometer
Final answer:
A psychrometer is not used to measure wind; it's used to calculate humidity. Wind measurement is done using a wind sock, weather vane, and anemometer, with the latter measuring wind speed.
Explanation:
When it comes to measuring wind, there are specific instruments designed for this purpose. A psychrometer is not used to measure wind; it measures humidity levels by using a pair of thermometers, with one being covered with a wet cloth and the other kept dry. The difference in temperature readings between the two is used to calculate humidity.
On the other hand, instruments such as a wind sock, weather vane, and anemometer are specifically designed to measure various aspects of wind. A wind sock and a weather vane are used to determine wind direction, while an anemometer measures wind speed, often in miles per hour, kilometers per hour, or knots.
how does a circuit breaker protect a refrigerator?
a. when the current is too high, a metal strip in the fuse melts and opens the circuit.
b. when the resistance is too high , a re-settable which opens a circuit
c. when the current is too high , a re-settable switch opens the circuit
d. when the resistance is too high a metal strip in the fuse melts and opens the circuit
Answer:
C. When the current is too high, a reset-able switch opens the circuit.
Explanation:
The circuit breaker has an electromagnet that has a specific maximum magnetic force. When the current becomes too high the core is magnetized
and attracts a soft iron armature which automatically breaks the circuit. Once the problem has been fixed the circuit breaker is reset by a switch.
Answer: When the current is too high, a resettable switch opens the circuit.
Explanation: A P E X
How many elements are needed to make a compound?
Hello There!
Your answer is 2.
This is because compounds consist of at least 2 elements.
Answer:
2
Explanation:
there should be at least 2 compound to make an element
like 2 atoms, etc...
hope it helps
and ur welcm
:D
In your own words, describe the purpose of using a chemical equation.
Answer:
To know the substances and number of atoms and molecules involve in the chemical equation.
Explanation:
The chemical equations are the linear presentation of chemical reactions. In our day to day life, different kinds of chemical reactions occur such as rusting of iron, curdling of milk. To represent such reactions we use chemical equations, where the left-hand side components are reactants and right-hand components are products. The reactants are the substances that are combined to form the reaction and results of the product. One can write chemical equations in words or in symbols. From the chemical equation, one can know how many numbers of atoms or molecules involve in the chemical reaction.
Answer:
Sample Response: Chemical equations show how chemicals interact when a reaction occurs. They use symbols and formulas to show the chemical reaction so that chemical names do not need to be written out. They also help keep track of all elements and the number of atoms of each element on each side of the equation.
Explanation:
A sound wave traveling downward with a speed of about 4,000 m/s suddenly slows to 1,500 m/s not far below the Earth’s surface. What has the sound wave most likely encountered? a different kind of rock an underground lake an open cavity a pile of dinosaur bones
Explanation:
In general, sound (mechanical waves) travels faster in solids than in liquids, and faster in liquids than in gases. This is because the speed of the mechanical waves is determined by a relationship between the elastic properties of the medium in which they are propagated and the mass per unit volume of the medium (that is:density).
In other words: The speed of sound varies depending on the medium through which the sound waves travel.
So, if we are told the sound wave initially had a speed of 4,000 m/s and it suddenly decreases to 1,500 m/s, this means the sound waves passed from a solid medium to a liquid medium.
Hence, the correct option is: an underground lake.
Which best describes electromagnetic waves moving from gamma rays to radio waves along the electromagnetic spectrum?
Answer: Wavelength increases and frequency decreases.
Explanation:
Electromagnetic spectrum is formed of radiations varying in frequency and wavelength like gamma rays, radio waves, UV rays, visible, and microwaves. We know that wavelength is proportional to frequency. Since the wavelength is proportional to frequency, the wavelength increases.
Electromagnetic waves, moving from gamma rays to radio waves along the electromagnetic spectrum, the wavelength increases and frequency decreases.
What is an electromagnetic wave?The waves that are related to both electricity and magnetism are known as electromagnetic waves. These waves are made up of time-varying electric and magnetic fields that travel over space.
These waves are made up of time-varying electric and magnetic fields that travel over space. These waves, which are related to electricity and magnetism, would undoubtedly spread in space.
Wavelength is inversely proportional to the frequency. The wavelength of the gamma rays are more than the radio wave.
So that Electromagnetic waves, moving from gamma rays to radio waves along the electromagnetic spectrum, the wavelength increases and frequency decreases.
Thus, option C is correct.
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A lamp draws a current of 0.50 A when it is connected to a 120 V source? What is the resistance of the lamp?
For this case we have that by definition, Ohm's Law states that:
[tex]V = I * R[/tex]
Where:
V: It's the voltage
I: It's the current
R: It's the resistance
According to the data we have to:
[tex]I = 0.50A\\V = 120V[/tex]
Clearing the resistance formula we have:
[tex]R = \frac {V} {I}\\R = \frac {120} {0.50}\\R = 240[/tex]
So, the resistance is 240 ohms!
Answer:
240Ω
The resistance of the lamp connected to a 120 V source and drawing a current of 0.50 A is 240 ohms, calculated using Ohm's law.
Explanation:The question is asking for the resistance of a lamp when a current of 0.50 A passes through it, and it is connected to a 120 V source. Using Ohm's law, which states that current (I) equals voltage (V) divided by resistance (R), or I = V/R, we can rearrange the formula to solve for R, which gives us R = V/I.
Substituting the given values into the formula:
V = 120 V
I = 0.50 A
The resistance R would then be:
R = 120 V / 0.50 A = 240 ohms.
A force of 8,480 N is applied to a cart to accelerate it at a rate of 26.5 m/s2. What is the mass of the cart?
865 kg
320 kg
12.1 kg
3.12 kg
For the given question, the mass of the cart is 320 Kg.
Answer: Option B
Explanation:
According to Newton’s second law, the rate of change in momentum exerted by an object is directly proportional to the unbalanced force exerted on the object. So
[tex]\text {Unbalanced Force } F=\frac{d(\text {momentum})}{d t}[/tex]
As momentum of an object is derived from the product of mass and velocity of the object. Thus,
[tex]\text {Momentum}=m \times v[/tex]
So,
[tex]\text {Unbalanced Force } F=\frac{d(m \times v)}{d t}[/tex]
As mass of an object tend to be same irrespective of time and velocity can vary with time, we obtain,
[tex]\text {Unbalanced Force } F=m \times \frac{d v}{d t}=m \times \text { accelearation }[/tex]
As it is known that rate of change in velocity is equal to the acceleration exerted by the object. Thus, Newton’s second law can also be stated as that the external unbalanced force exerted on the object will be equal to the mass of the object and the acceleration exerted by the object. So in the present case, as we known the force and acceleration, the mass of the object will be determined by the formula F = ma.
[tex]F=m \times \text {acceleration}[/tex]
Therefore,
[tex]\text {Mass}=\frac{\text { Force }}{\text { Acceleration }}=\frac{8480}{26.5}=320 \mathrm{kg}[/tex]
A front refers to
the location where two air masses meet.
an air mass that extends across a large area.
a large body of air moved by global wind patterns.
a place on Earth’s surface affected by uneven heating.
Answer: The location where two air masses meet.
Explanation:
A front is a middle zone between two air masses. Each air mass exhibit different densities. The air masses also differ in humidity and temperature. The front is responsible for changing the climatic condition of a region.
Answer:
The location where two air masses meet.
Based on its location on the periodic table, which element would be most
likely to form a positive ion?
Answer: Sodium Na
Hydrogen H
The question is incomplete, here is the complete question:
Based on its location on the periodic table, which element would be most likely to form a positive ion?
A. Sulfur (S)
B. Chlorine (Cl)
C. Sodium (Na)
D. Fluorine (F)
Answer: The element which is most likely to form positive ion is Sodium (Na)
Explanation:
An ion is formed when a neutral atom looses or gains electrons
When an atom looses electrons, it results in the formation of positive ion known as cation.
When an atom gains electrons, it results in the formation of negative ion known as anion.
For the given options:
Option A: SulfurSulfur is the 16th element of the periodic table having electronic configuration of [tex]1s^22s^22p^63s^23p^4[/tex]
This element will gain 2 electrons to attain stable electronic configuration and will form [tex]S^{2-}[/tex] ion
Option B: ChlorineChlorine is the 17th element of the periodic table having electronic configuration of [tex]1s^22s^22p^63s^23p^5[/tex]
This element will gain 1 electron to attain stable electronic configuration and will form [tex]Cl^{-}[/tex] ion
Option C: SodiumSodium is the 11th element of the periodic table having electronic configuration of [tex]1s^22s^22p^63s^1[/tex]
This element will loose 1 electron to attain stable electronic configuration and will form [tex]Na^{+}[/tex] ion
Option D: FluorineFluorine is the 9th element of the periodic table having electronic configuration of [tex]1s^22s^22p^5[/tex]
This element will gain 1 electron to attain stable electronic configuration and will form [tex]F^{-}[/tex] ion
Hence, the element which is most likely to form positive ion is Sodium (Na)
Which type of curved mirror uses its outside as the reflecting surface?
a virtual mirror
a concave mirror
a plane mirror
a convex mirror
Answer:
a convex mirror
Explanation:
a convex mirror is a type of curved mirror that uses its outside as the reflecting surface;
A mirror whose reflecting surface curves outwards is called a convex mirror. In convex mirrors, the bulging portion is also the reflecting surface. These types of curved mirrors are widely used in vehicles as rear view mirrors since they are able to form diminished images and thus give us a larger view.
a convex mirror
Explanation:
what is biasing and doping
Answer:
Biasing - Biasing means being unfair to someone or something, and liking the other one or helping them.
Doping - Doping is where a person use drug to get better at sporting and get stronger muscles, such as getting stronger, getting faster and so on. It is mostly used by athletics.
Answer:
illegal use of ergogenic substances
Explanation: