There are three plate boundaries: Constructive, Destructive and transform plate boundary. At constructive plate boundary mountains form, at destructive plate boundaries earthquake and volcanism occurs and at transform boundary faults occur.
Explanation:
Plates are solid and rigid mass. It mainly floats over asthenosphere which is a part of upper mantle. There are seven major plates and twenty minor plates. The zone between two plates are known as plate boundary and the edge of a plate is known as plate margin.
There are three plate boundaries: Conservative, destructive and transform plate boundary. Where two plates collide with each other known as destructive plate boundary and where two plates move in opposite direction from each other known as constructive plate boundary. Where two plates slide each other called transform fault.
Answer:
Volcanoes are one kind of feature that forms along convergent plate boundaries, where two tectonic plates collide and one moves beneath the other.
Explanation:
what is quantum programing
Answer: Quantum programming is the process of assembling sequences of instructions, called quantum programs, that are capable of running on a quantum computer. Quantum programming languages help express quantum algorithms using high-level constructs.
Explanation:
Final answer:
Quantum programming involves creating algorithms and software for quantum computers, utilizing qubits and principles like superposition and entanglement. It requires knowledge of quantum mechanics and is supported by programming languages like Q# and Qiskit.
Explanation:
Quantum Programming
Quantum programming is a field within computer science that focuses on the development of algorithms and software for quantum computers. These computers leverage the principles of quantum mechanics to process information in ways that traditional computers cannot. Quantum programming often involves the use of quantum bits or qubits, which, unlike classical bits, can exist in multiple states simultaneously. This state is known as superposition, and it allows quantum computers to perform certain computations much faster than classical computers. Another key concept in quantum computing is entanglement, which enables qubits that are entangled to be correlated with one another even when separated by large distances.
Quantum programming languages, such as Q# by Microsoft and Qiskit by IBM, provide frameworks for developers to write programs that can run on quantum computers. The field is highly interdisciplinary, drawing from areas such as physics, mathematics, and computer science.
How much kinetic energy does a 4.50kg block with a speed of 5.00m/s have?
O
11.23
28.13
5.62)
56.23
Answer:
56.25J
Explanation:
Kinetic energy = 1/2 mv^2
Where m = mass
v = velocity
Given m = 4.50kg
v = 5.00m/s
Kinetic energy = 1/2 x 4.50 x (5.00)^2
= 1/2 x 4.50 x (5.00 x 5.00)
= 1/2 x 4.50 x 25
Multiply through
= 112.5/2
= 56.25J
What is a mutation?
Answer:
the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes
Explanation:
What is the kinetic energy of a 7.26kg bowling ball Thai is rolling at a speed of 2m/s
Answer:14.52joules
Explanation:
Mass(m)=7.26kg
Velocity(v)=2m/s
Kinetic energy=(mv^2)/2
Kinetic energy=(7.26x2^2)/2
Kinetic energy =(7.26x4)/2
Kinetic energy =29.04/2
Kinetic energy =14.52joules
without fluid friction, all objects accelerate at?
Answer:
Without fluid friction, all objects accelerate at the gravity acceleration.Explanation:
When an object moves through a fluid, like air, water or oil, the object experiences a resistance to flow; this is, to pass through the fluid.
This resistance force is the fluid friction.
In few words, fluid friction is a force that opposes the motion of the objects through the fluid.
Then, in the abscence of fluid friction, all objects falling accelerate at the gravity acceleration.
Match the scientists with the correct atomic models.
Democritus and Dalton
J.J. Thomson
Ernest Rutherford
Answer:
JJ. Thomson- electrons mixed in a positive sphere
Ernest Rutherford- central nucleus
Democritus and Dalton- indivisible sphere
Explanation:
Hope this helps!
Ernest Rutherford discovers the Concept of nucleus. J.J Thompson contributes to the Discovery of electrons. Dalton gives the concept of the Indivisibility of atoms.
A. Ernest Rutherford: Contribution - Concept of the nucleus. Rutherford's famous Gold Foil Experiment led to the discovery that most of the atom's mass and positive charge are concentrated in a small, dense nucleus at the center of the atom.
B. J.J. Thompson: Contribution - Discovery of electrons. J.J. Thompson discovered electrons using cathode ray tubes and proposed the "Plum Pudding Model," which suggested that atoms contained negatively charged electrons embedded in a positively charged material.
C. Dalton: Contribution - Indivisibility of atoms. Dalton's Atomic Theory proposed that matter is made up of indivisible and indestructible particles called atoms, which combine to form compounds in fixed ratios.
Therefore, Ernest Rutherford discovers the Concept of the nucleus. J.J Thompson contributes to the Discovery of electrons. Dalton gives the concept of the Indivisibility of atoms.
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The complete question is:
Match column A (name of the Scientists) with column B (their contributions towards the understanding of the atomic structure).
Column A Column B
A. Ernest Rutherford 1. Indivisibility of atoms
B. J.J Thompson 2. Concept of nucleus
C. Dalton 3. Discovery of electrons
without fluid friction, all objects accelerate at?
Answer:
Acceleration of gravity=[tex]9.8m/s/s[/tex]
Explanation:
Newton's Second Law-acceleration is proportional to the net force acting on an object.
All objects usually free fall at the same acceleration of [tex]9.8m/s/s[/tex]-this regardless of their mass. This acceleration is known as acceleration of gravity.
The body weighing 2 kg moves through the horizontal surface and crosses the path x = 75 cm The coefficient of friction of the body and horizontal surface is 0.8. If the kinetic energy of the body in the starting position is 16J, how much will the kinetic energy of the body be in the definitive position?
The kinetic energy of the body in definitive position is 4.24 J.
Explanation:
As per the work energy theorem, the work done on any system or object to move it from one position to another is equal to the change in kinetic energy of the object. In this case, the body weighing 2 kg is moved over an horizontal surface for a distance of 75 cm. As there will be frictional force acting on the body while moving over the surface. This frictional force multiplied by the distance the object is moved will give the work done on the body.
Frictional force = Coeffficent of friction × Normal force.
As the weight of the body is 2 kg, the normal force acting on it will be mass multiplied with acceleration due to gravity.
Frictional force = - 0.8×9.8 × 2 =-15.68 N
So the work done will be the product of frictional force with the displacement of 75 cm or 0.75 m.
Work done = Frictional force × Displacement
Work done = -15.68×0.75 = -11.76 J.
So the work is done by the object.
If the kinetic energy of the body at starting is 16 J, then the kinetic energy of the body at definitive position will be obtained as below.
Work done = change in kinetic energy
-11.76 J = Final kinetic energy-16 J
Final Kinetic energy = - 11.76+16
Final kinetic energy = 4.24 J
Thus, the kinetic energy of the body in definitive position is 4.24 J.
A missile is moving 1350 m/s at a 25.0 degree angle. It needs to hit a target 23500 m away in a 55.0 degree direction in 10.20s. What is the direction of its final velocity?
Answer:
V=[tex]3204m/s[/tex]
Direction is normal to the incline
Explanation:
This question tests on projectile motion.
First, calculate the acceleration of the missile.
Incline=55º,Distance=23500m, t=10seconds.
Horizontal motion of projectile
[tex]x=V_xt+0.5a_xt\\23000Cos55\textdegree=1350Cos25\textdegree\times10.20+0.5a_x(10.20)^2\\a_x=19.2m/s^2[/tex]
Final velocity
[tex](V_x)\prime=V_x+a_xt=1350Cos25\textdegree+19.2\times10.20=1419m/s[/tex]
The vertical motion of the missile can be calculated as:
[tex]23500 Sin55.0\textdegree =1350Sin25\textdegree\times10.2+0.5a_y\times10.2^2\\a_y=258.2m/s^2[/tex]
Final Velocity is:
[tex](V_y)\prime=V_y+a_yt=1350Sin25\textdegree+258.2\times10.20=3204m/s[/tex]
Combining both we get
[tex]V=\sqrt(V\prime x^2+V\primey^2)=3504.2m/s[/tex]
*Misile's motion is normal to the 55º incline.
2. A 4-kg gun shoots a 0.1-kg bullet at 400 m/s. Find the recoil speed of the gun.
Answer:10m/s
Explanation:
M=mass of gun=4kg
U=recoil velocity of gun
m=mass of bullet=0.1kg
V=velocity of bullet=400m/s
M x U=m x V
4 x U=0.1 x 400
4xU=40
Divide both sides by 4
(4xU)/4=40/4
U=10m/s
Recoil velocity=10m/s
What is the wavelength of a radio wave with a frequency of 2.00 x 10^4 Hz? (hint: what is the speed of all electromagnetic radiation?)
ОА
6.67 x 105 m
O
B
1.50 x 104 m
6.00 x 1012 m
6.67 x 10m
Answer: Option B
The wavelength for a radio wave with a frequency of 2 × 10⁴ Hz is
1.5 × 10⁴ m.
Explanation:
Wavelength is the measure of distance between two successive crests or troughs in a standing wave. Also wavelength can be measured as the ratio of velocity of light to frequency. It is like this because wavelength is inversely proportional to the frequency.
[tex]Wavelength =\frac{c}{frequency}[/tex]
As c = 3 × 10⁸ m/s and the frequency is 2 × 10⁴ Hz, then the wavelength will be
[tex]Wavelength =\frac{3*10^{8} }{2*10^{4} } =1.5*10^{4} m[/tex]
So, the wavelength for a radio wave with a frequency of 2 × 10⁴ Hz is
1.5 × 10⁴ m.
What are the similarities and differences between chemical and physical properties?
Answer:
Physical properties are different from chemical properties of a substance. The main difference between physical and chemical properties is that physical properties can be observed without changing the chemical composition of a substance whereas chemical properties can be observed by changing the chemical composition of a substance.
Explanation:
The differences are:
1. Physical change is easily reversible while chemical change is not easily reversible
2. Physical change forms no new substance. while chemical change forms new substance
3. In Physical change there is no change in the mass of a substance involved while In chemical change, there is a change in the mass of the substance involved.
4. Physical change does not involve great heat. while chemical change involves considerable amount of heat.
The Similarities are :
1. They can be both reversible.
2. Heat is involved
3. They both involve reasonable amount of substance or matter.
Physical properties exhibit physical changes such as:
boiling and melting point of a substance, density, hardness, malleability, crystalline form and some properties that can be detected by our sense organ, such as taste, color and odor.
While chemical properties occur when matter or substance undergoes a change to form another new substance. For example : rusting of iron and burning of wood.
The differences are:
1. Physical change is easily reversible while chemical change is not easily reversible
2. Physical change forms no new substance. while chemical change forms new substance
3. In Physical change there is no change in the mass of a substance involved while In chemical change, there is a change in the mass of the substance involved.
4. Physical change does not involve great heat. while chemical change involves considerable amount of heat.
The Similarities are :
1. They can be both reversible.
2. Heat is involved
3. They both involve reasonable amount of substance or matter.
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in addition to power output light bulbs should also be labelled with the rate at which they emit visible light
To compare the brightness of light bulbs, you should look for the luminous flux in lumens on their labels, as this measures the perceived power of light by the human eye, offering a more accurate representation of brightness than wattage alone.
Explanation:To compare the brightness of light bulbs for sale in a store, you should look on the labels to see how they are rated in terms of luminous flux, which is measured in lumens (lm). The luminous flux is a measure of the perceived power of light by the human eye. Energy-saving light bulbs like compact fluorescent lamps and LED bulbs provide more luminous flux for a given use of electricity, meaning they have higher luminous efficacy, represented in lumens per watt. When replacing an old incandescent bulb with an energy-saving one, it is important to compare lumens to ensure the same level of brightness is achieved.
Traditionally, people have been accustomed to associating the brightness of a bulb with its power consumption in watts due to the prevalence of incandescent bulbs. However, as technology has advanced, the importance of comparing lumens, rather than just wattage, has become clear for a more accurate representation of a bulb's light intensity. A higher wattage does not necessarily mean more visible light, since not all electrical power is converted into visible light. Also, different types of bulbs convert electricity to light with varying efficiencies.
Note: The efficiency of a light bulb, which is the fraction of its total light output that falls within the visible range, is never 100% due to the nature of thermal sources and the distribution of emitted wavelengths.
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A balloon has a volume of 18.0-L at a pressure of 87.6 kPa. What will be the new volume when the pressure is 48.2 kPa?
Answer:
32.71 L
Explanation:
We can solve this question using Boyle's law of ideal gas. The law states that the volume and pressure are inversely proportional when the temperature is constant. At first, the volume is 18L (V1) and the pressure is 87.6 kPa(P1). Then the pressure changed into 48.2 kPa(P2). We are asked to find the volume(V2).
The calculation will be:
P1 * V1= P2 * V2
87.6 kPa *18L = 48.2 kPa * V2
V2= 87.6 kPa *18L / 48.2 kPa
V2=32.71 L
Organisms have very few parts that are not useful to the organism. This is because
Answer:
Those parts have become vestigial
Explanation:
Organisms have few parts that are not useful to them because those parts in them have become vestigial.
When an organism has a part is no more using, it relates to the evolutionary history of such organism.
These parts are called vestigial body parts. They are not needed for the survival of an organism again and they can do without them. At a certain point in time, those parts might be very vital to the sustenance of such organism. With time, those parts becomes useless and redundant.Answer:
Those parts have become vestigial
Explanation:
Organisms have a few parts that are not useful to them because those parts in them have become vestigial.
When an organism has a part that is no more used, it relates to the evolutionary history of such organism.
These parts are called vestigial body parts.
They are not needed for the survival of an organism again and they can do without them.
At a certain point in time, those parts might be very vital to the sustenance of such organisms.
With time, those parts become useless and redundant.
When it is cloudy, many of the sun’s rays never reach the Earth. What does this do to the temperature
Answer:
When it is cloudy, many of the sun’s rays never reach the Earth. It leads to cooler temperatures.
Explanation:
During the day, the sun warms the earth. When the sky is clear, more heat reaches the earth's surface . This leads to warmer temperatures.
However, when the sky is cloudy, a few drops of clouds reflect some of the sun's rays. As a result, less solar energy can reach Earth's surface, causing Earth to heat up more slowly. This leads to cooler temperatures.
If cloudy skies are forecast when forecasting daytime temperatures, expect lower temperatures than you would expect if clear skies were forecast.
Similarly, cloud cover at night has the opposite effect. When the sky is clear, the heat emitted from the earth's surface freely escapes into space, resulting in cooler temperatures.
However, when there are clouds, some of the heat from the earth's surface is captured by the clouds and returned to the earth. As a result, temperatures drop more slowly than when the sky is clear.
Final answer:
Cloud cover influences Earth's temperatures, with thick clouds leading to cooler days by blocking sunlight and warmer nights by trapping heat. Low clouds primarily cool the Earth while high clouds can contribute to warming due to trapping of infrared radiation. This results in different temperature outcomes depending on cloud type and time of day.
Explanation:
When it is cloudy, many of the sun’s rays are either reflected or absorbed by clouds, which can significantly influence temperature conditions on Earth. During the day, thick clouds can prevent the sun's energy from warming the Earth's surface as effectively, leading to cooler daytime temperatures. Conversely, at night, these same clouds can act as an insulating layer, trapping longwave radiation that is emitted from the Earth's surface and preventing it from escaping into space, resulting in warmer nighttime temperatures.
Furthermore, cloud cover affects the radiation balance of Earth differently based on the type of clouds. Low clouds generally have a net cooling effect since they reflect more sunlight back into space. On the other hand, high cirrus clouds tend to have a net warming effect by trapping more infrared radiation. This dynamic leads to a complicated system of cloud feedbacks that influence global temperature patterns.
In summary, clouds play a critical role in the Earth's climate system by influencing how much of the sun's energy is absorbed or reflected, and how much earthly heat is retained or released, thereby affecting the overall temperature experienced at Earth's surface.
Possible reasons why seascorpions went extinct
Which phase of matter consists of particles that vibrate only?
Answer: Solids
Explanation: Solids have very little movement and the particles have barely enough movement to vibrate. We can't see it but the particles are indeed vibrating. Solids have the least amount of kinetic energy which is moving energy.
Every object with mass exerts a gravitational force on every other object with mass. The gravitational force between which of the
following two objects would be easiest to detect with measuring equipment?
A.
an electron and a bowling ball
OB. the Moon and the Earth
C.
a baseball and a bowling ball
D.
a human and a dog
A man pushes a cart with force of 120-N at an angle of 50 degrees with the ground. If he walks a horizontal displacement of 20-m going to cashier who’s much work is done!
Answer:
1543 J
Explanation:
The work done by a force when moving an object is given by the equation:
[tex]W=Fd cos \theta[/tex]
where:
F is the magnitude of the force applied on the object
d is the displacement of the object
[tex]\theta[/tex] is the angle between the direction of the force and of the displacement
For the cart pushed in this problem, we have:
[tex]F=120 N[/tex] is the force applied by the man
[tex]d=20 m[/tex] is the displacement of the cart
[tex]\theta=50^{\circ}[/tex] is the angle between the directions of the force and of the displacement
Solving for W, we find the work:
[tex]W=(120)(20)(cos 50^{\circ})=1543 J[/tex]
Check
Use the drop-down menus to choose the planets being described.
This planet had the Great Dark Spot.
This planet has the most visible rings.
This planet rotates from top to bottom.
This planet has the Great Red Spot.
Answer:
the first one is: Neptune
second one: Saturn
third one: Uranus
fourth one: Jupiter
Explanation:
The classification is as follows:
This planet had the Great Dark Spot - Neptune .This planet has the most visible rings - Saturn.This planet rotates from top to bottom - Uranus. This planet has the Great Red Spot - Jupiter.Learn more: https://brainly.com/question/537797?referrer=searchResults
Kent throws a tennis ball that has a mass of 3.0 kg straight up in the air at 25 m/s. What height does it reach if the kinetic energy of the ball is 100% transferred into potential energy at the top of the throw
Explanation:
1/2mv^2 = mgh
1/2×3×25^2 = 3×9.8×h
937.5 =29.4h
29.4h/29.4 = 937.5/29.4
h=31.89 m
An Inter City Express train traveling at 250 km/h is
braked to a stop in a distance of 4820 m. If the mass of the
train is 8.63 X 105 kg, what is the average braking force?
Answer:
F = 431671.31 [N]
Explanation:
This problem can be solved using the work and energy theorem, which tells us that the initial mechanical energy (potential energy + kinetic energy) plus the sum of the work from the initial position to the end will be equal to the final mechanical energy.
[tex]E_{M1}+W_{1-2}=E_{M2}\\0.5*m*v_{1}^{2}+W_{1-2}=0.5*m*v_{2}^{2}[/tex]
As the train stops at the end, the speed at Point 2 is equal to zero,so we can determine the work, we first convert the speed from [km/h] to meters per second.
[tex]250[\frac{km}{h}]*1[\frac{h}{3600s} ]*1000[\frac{m}{1km} ]\\= 69.44[\frac{m}{s} ][/tex]
[tex]0.5*(8.63*10^{5})*(69.44)^{2}+W_{1-2}= 0.5*(8.63*10^{5})*(0)^{2}\\W_{1-2}=-2080.66*10^6[J][/tex]
The negative sign means that the work is done in the opposite direction to the movement.
Knowing the work we can calculate the force, since an initial input data is the distance
W = F * d
F = W / d
F = (2080.66*10^6) / 4820
F = 431671.31 [N]
How much force is required (in Newton’s) to accelerate a 4-kg skateboard, along with its 46-kg rider, at 3m/s2?
Answer:150N
Explanation:
Total mass=mass of skate board + mass of rider
Total mass(m)=46kg + 4kg
Total mass(m)=50kg
Acceleration(a)=3m/s^2
Force(f)=mass x acceleration
Force=50 x 3
Force=150N
To accelerate the skateboard and rider at 3 m/s², a force of 150 N is required.
The force required to accelerate a 4-kg skateboard and its 46-kg rider at 3 m/s² can be calculated using Newton's second law, which states that Force = mass x acceleration.
Applying the formula, the total mass is 4 kg + 46 kg = 50 kg.
Therefore, the force required is 50 kg x 3 m/s² = 150 N.
the speed of the sound wave in the chosen m_____ should be known
Answer:
meters or meter...
Explanation:
....
What is the value, in meters per second squared, of the acceleration of
gravity?
Answer:
9.80665 is the value in meters per second squared
What is the charge on an object that has 1.09x10^13 excess electrons?
Answer:
[tex]-1.74\cdot 10^{-6} C[/tex]
Explanation:
The electron is the particle that rotates around the nucleus of the atom; it has a negative electric charge equal to :
[tex]e=-1.6\cdot 10^{-19}C[/tex]
which is known as fundamental charge.
For an object containing N excess electrons, the total charge of the object is
[tex]Q=Ne[/tex]
In this problem, the number of excess electrons in the object is:
[tex]N=1.09\cdot 10^{13}[/tex]
Therefore, by plugging it the numbers, we can find the value of Q, the total charge of the object:
[tex]Q=(1.09\cdot 10^{13})(-1.6\cdot 10^{-19})=-1.74\cdot 10^{-6} C[/tex]
2 resistors of resistance 1000 ohm and 2000 ohm are joined in series with a 100V supply. A voltmeter of internal resistance 4000 ohm is connected to measure the potential difference across 1000 ohm resistor. Calculate the reading shown by the voltmeter.
The potential difference across a resistor measured using a voltmeter takes into account the internal resistance of the voltmeter, altering the circuit dynamics. Calculations involve finding the equivalent resistance of the voltmeter-resistor parallel combination and applying Ohm's law accordingly.
Explanation:When measuring the potential difference across a resistor in a series circuit using a voltmeter, it is essential to consider the internal resistance of the voltmeter itself, as it is placed in parallel with the resistor being measured. In this case, with resistors of 1000 ohm and 2000 ohm connected in series to a 100V supply and a voltmeter of 4000 ohm internal resistance connected across the 1000 ohm resistor, the circuit's behavior is modified. First, calculate the total series resistance, which is 3000 ohms. This gives a total current (I) of 100V/3000 ohms = 0.0333 A. The voltage across the 1000 ohm resistor without the voltmeter would be V = IR = 0.0333A × 1000 ohm = 33.3V.
However, the presence of the voltmeter alters this calculation by creating a parallel circuit with the 1000 ohm resistor and the voltmeter's 4000 ohm resistance. The equivalent resistance of this parallel circuit can be calculated with 1/Req = 1/R1 + 1/R2, leading to an equivalent resistance of 800 ohms. Applying Ohm's law again for the modified circuit gives a slightly different current, and subsequently, the potential difference can be calculated.
please help!!!!!!! (attached to the file)
Answer:
B
Explanation:
the battery isn't chemical energy so any answer saying that you can cross out and that leaves you with B
Which of these is not a part of the
cardiovascular system?
Answer:I don't see any
Explanation:
Answer: (B) The pancreas is a part of the cardiovascular system. The heart and your circulatory system is a part of it (which includes blood and your veins/arteries).
Explanation: