Answer:
Magneta is a mix of blue and red and is a secondary colour.
Explanation:
As we can see green is the complementary colour of Magneta.Complementary colours are the pairs of colours which when combined cancel each other out. This means that when combined they produce a grayscale colour like white or black .
The complementary colors are opposite on the color wheel, with green being the complement of magenta, yellow the complement of blue, and red the complement of cyan.
The complementary colors on a color wheel are those that are directly opposite to each other. When combined in the additive color system, they produce white light. The complementary color of magenta is green, as magenta is a mixture of blue and red, and green is the opposite of that combination on the color wheel. The complementary color of blue is yellow, which is a mixture of red and green. Lastly, the complementary color of cyan, which is a mixture of blue and green, is red.
Identify the form of energy that matches each example. Energy from electromagnetic waves: Energy caused by changes in the structure of a nucleus: Energy resulting from movement and vibration of molecules: Energy an object has because of its position:
Electromagnetic waves carry energy in the form of photons. Nuclear energy is released during changes in the structure of a nucleus. Thermal energy is the result of movement and vibration of molecules. Potential energy is associated with an object's position.
Explanation:Energy from electromagnetic waves: Electromagnetic waves, such as light, carry energy in the form of photons. These waves can be used to transfer energy and gather information. For example, sunlight carries energy from the sun to the Earth, which can be used for photosynthesis in plants.
Energy caused by changes in the structure of a nucleus: Nuclear energy is released when the structure of a nucleus changes, such as in nuclear fission or fusion reactions. This energy is used in nuclear power plants to generate electricity.
Energy resulting from movement and vibration of molecules: Thermal energy, also known as heat energy, is the energy resulting from the movement and vibration of molecules. It is a form of kinetic energy and is responsible for temperature changes and heat transfer.
Energy an object has because of its position: Potential energy is the energy an object possesses due to its position or condition. For example, a raised object has gravitational potential energy, and a compressed spring has elastic potential energy.
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The examples correspond to Radiant Energy (energy from electromagnetic waves), Nuclear Energy (energy caused by changes in a nucleus), Thermal Energy (energy resulting from movement and vibration of molecules), and Potential Energy (energy an object has because of its position).
Explanation:For the given examples, the corresponding forms of energy are:
Energy from electromagnetic waves refers to Radiant Energy. Energy caused by changes in the structure of a nucleus refers to Nuclear Energy. Energy resulting from movement and vibration of molecules refers to Thermal Energy. Energy an object has because of its position refers to Potential Energy.
These are the major types of energy that correspond to the scenarios described in your question. Each of these forms plays a vital role in different physical and biological systems.
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a rocket is fired vertically from the ground.it moves upwards with a constant acceleration 10m/s square for 30 seconds after which the fuel is finished.after what time from the instant of the firing of the rockets will attain maximum height?,find the maximum height it rraches above the ground and total time the rockrt will stay above the ground.
Answer:
9090 m, 104 s
Explanation:
After the acceleration phase, the rocket reaches a height of:
x = x₀ + v₀ t + ½ at²
x = (0 m) + (0 m/s) (30 s) + ½ (10 m/s²) (30 s)²
x = 4500 m
And it reaches a velocity of:
v = at + v₀
v = (10 m/s²) (30 s) + (0 m/s)
v = 300 m/s
After the fuel runs out, the rocket goes into free fall. The maximum height reached is:
v² = v₀² + 2a(x - x₀)
(0 m/s)² = (300 m/s)² + 2(-9.8 m/s²)(x - 4500 m)
x ≈ 9090 m
The time to reach maximum height during free fall:
v = at + v₀
0 m/s = (-9.8 m/s²) t + (300 m/s)
t ≈ 30.6 s
And the time to land from the maximum height:
x = x₀ + v₀ t + ½ at²
0 m = (9090 m) + (0 m/s) t + ½ (-9.8 m/s²) t²
t ≈ 43.1 s
So the total time is:
t = 30 s + 30.6 s + 43.1 s
t ≈ 104 seconds
Which of the three subatomic particles is responsible for determining the reactivity of an element?
The electron is the subatomic particle that determines an element's reactivity, with the configuration of the outermost or valence shell playing a key role in how readily an element undergoes chemical reactions.
Explanation:The subatomic particle responsible for determining the reactivity of an element is the electron. The electrons in the outermost subshell, or valence shell, have the most significant interaction with other atoms, as they are farthest from the nucleus. An element is chemically reactive if its valence shell can easily accept or give up electrons. For instance, noble gases like helium and neon have a full valence shell and are very stable—they do not react easily due to their high ionization energies and unwillingness to accept an additional electron. On the other hand, elements like hydrogen have an incomplete valence shell, making them more reactive as they seek stability through reactions with other elements.
Which is an important step in how an electric motor uses magnetic force to produce motion?
A) As the north pole of the electromagnet nears the north pole of the permanent magnet, the current reverses and the poles of the magnets then attract.
B) As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
C) As the north pole of the electromagnet nears the north pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
D) As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then attract.
Answer:B.As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
Explanation:
Answer:
B) As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
Explanation:
As we know that electric motor is based on the concept of torque due to magnetic field on current carrying coil.
Here as the current is passing through the coil the torque on the coil is given as
[tex]\tau = NiAB sin\theta[/tex]
so here the magnetic field due to coil will continuously repelling the current carrying coil as it will move between the magnetic field so direction of current in the coil will change continuously so that it will always repel by the magnetic field and continuously rotated between the magnets
Which best describes hooke’s equation?
Answer:
B.
The explanation of the relationship between load and extension is not in Hooke's Law.
Explanation:
Answer:
theory
Explanation:
I just took the test! hope this helps!
a swimmer pushes water bacwards,why
"When we swim, we apply force and push the water backward with the help of our hands. In response to this action, the water pushes us forward with an equal force. Thus, in order to move forward and swim, the swimmer pushes the water backward."
-Newton's 3rd law
Alexis pulls with 3.0 Newton’s on a toy doll toward east. Brianna pulls on the same toy toward the south with 2.0 Newton’s. Calculate the magnitude of the resultant force on the toy.
Answer:
3.605N
Explanation:
From the diagram attached, the resultant force can be calculated using pythagoras theorem,
R² = F1² + F2²
R² = 3² + 2²
R² = 9 + 4
R² = 13
R = 3.605N
Note: the square root of R was taken
The Mass number of an element is the?
A. number of protons plus electrons
B.number of protons only
C. number of protons plus neutrons
Answer:
The mass number of an element is the number of protons plus neutrons.
Explanation:
The mass number of an element is the number of protons plus neutrons, so the correct answer is the option C.
The mass number of an element is the sum of the number of protons plus neutrons.
Answer: Option C
Explanation:
The element's mass number refers to the summative number of neutron and proton in the nucleus. In the nucleus there is the total number of protons and neutron, summed together to form the atomic mass.
Atomic mass is similar as the mass number in representation. Therefore, we have the following formula for the mass number,
Mass number of an element=Number of protons+Number of neutrons
An object is traveling in a circular motion at constant speed. If the speed is doubled, the centripetal acceleration is changed by a factor of
Answer: the centripetal acceleration is changed by a factor of four
Explanation: An object moving in a circular motion at constant speed has zero tangential acceleration but the direction of the tangential velocity vector changes as the object rotates. This change in direction of the tangential velocity vector results in centripetal acceleration ([tex]a_c[/tex]) given by
[tex]a_c=\frac{v^{2}}{r}[/tex]
where v=speed of object , r= radius of circular path
Thus if [tex]v_2=2v_1[/tex] then
[tex]a_2=\frac{v_2^{2}}{r_2}=\frac{(2v_1)^{2}}{r_1}=4\times \frac{v_1^{2}}{r_1}=4a_1[/tex]
Thus If the speed is doubled, the centripetal acceleration is changed by a factor of four .
Final answer:
The centripetal acceleration will increase by a factor of 4 when the speed of an object in circular motion is doubled, because centripetal acceleration is proportional to the square of the velocity.
Explanation:
An object is traveling in circular motion at constant speed. When the object's speed is doubled, its centripetal acceleration is affected significantly because the acceleration in circular motion is directly proportional to the square of the velocity. The formula for centripetal acceleration (ac) is ac = v² / r, where v is the speed of the object and r is the radius of the circular path.
Since the relationship is quadratic, if you double the speed (v becomes 2v), the new acceleration will become (2v)² / r = 4v² / r. This shows that the centripetal acceleration will increase by a factor of 4, which is the square of the factor by which the speed is increased.
the boundary between tectonic plates that are moving toward each other
Answer:
A divergent boundary is the answer
Explanation:
How did the appearance of the smallest creatures, such as the microbes and bacteria, in Earth's early history impact the geosphere?
A)
formation of rocks
B)
enriching the soil
C)
decreased moisture
D)
caused land erosion
B) Enriching the soil.
Hope this helps.
I believe the answer is B) enriching the soil. Bacteria converts energy in would organic matter into forms useful to the rest of the organization in the soil food web.
1. By what factor will the Electrostatic Force between two charged objects change when the amount of charge on ONE object doubles?
A. 2
B. 4
C. 1/2
D. 1/4
2. By what factor will the Electrostatic Force between two charged objects change when the distance between the TWO charged objects doubles?
A. 2
B. 4
C. 1/2
D. 1/4
3. By what factor will the Electrostatic Force between two charged objects change when the amount of charge on both objects doubles AND the distance between the two charged objects triples?
A. 2/3
B. 3/4
C. 2/9
D. 2/9
1) A. 2
The electrostatic force between two objects is given by:
[tex]F=k\frac{q_1 q_2}{r^2}[/tex]
where
k is the Coulomb's constant
q1 and q2 are the charges of the two objects
r is the separation between the two objects
In this problem, the charge of one object is doubled, so
[tex]q_1' = 2q_1[/tex]
Therefore the new force is
[tex]F'=k\frac{q_1' q_2}{r^2}=k\frac{(2q_1)q_2}{r^2}=2(\frac{kq_1 q_2}{r^2})=2F[/tex]
So, the force will double.
2) D. 1/4
Using the same formula, the electrostatic force between the two objects is:
[tex]F=k\frac{q_1 q_2}{r^2}[/tex]
In this problem, the distance between the two objects is doubled, so
[tex]r' = 2r[/tex]
Therefore the new force is
[tex]F'=k\frac{q_1 q_2}{(r')^2}=k\frac{q_1 q_2}{(2r)^2}=\frac{1}{4}(\frac{kq_1 q_2}{r^2})=\frac{F}{4}[/tex]
So, the force will decrease to 1/4 of its original value.
3) 4/9
Using the same formula, the electrostatic force between the two objects is:
[tex]F=k\frac{q_1 q_2}{r^2}[/tex]
In this problem, the amount of charge on both objects doubles, so
[tex]q_1' = 2q_1[/tex]
[tex]q_2' = 2q_2[/tex]
Also, the distance is tripled
[tex]r' = 3r[/tex]
Therefore the new force is
[tex]F'=k\frac{q_1' q_2'}{(r')^2}=k\frac{(2q_1) (2q_2)}{(3r)^2}=\frac{4}{9}(\frac{kq_1 q_2}{r^2})=\frac{4}{9}F[/tex]
So, the force will decrease to 4/9 of its original value.
A quality that has magnitude only is a
scaler quantity has magnitude only for example mass ,speed,distance,electric current
The table shows data related to the planet Saturn. Which data is essential to find the length of a year on Saturn?
Answer:
period of orbit around sun ! thats a saturn year
Explanation:
Decribe the relationship between kinetic energy and speed
Every moving object has kinetic energy.
The kinetic energy a moving object has is
(half of its mass)
multiplied by
(the square of its speed).
A car travels 300 meters in 15 seconds. What is
the average velocity of the car?
A.
5.0 m/sec
B.
15 m/sec
C.
20 m/sec
D. 30 m/sec
C; to get the unit rate or the time it travels per second you divide the total amount traveled by the amount it took to travel. 300/15=20 20•15=300
The average velocity of the car is: C. 20 m/sec.
Given the following data:
Distance traveled = 300 meters.Time = 15 seconds.To find the average velocity of the car:
Mathematically, average velocity is calculated by using the formula;
[tex]Average \; velocity = \frac{Total \; distance}{Total \; time}[/tex]
Substituting the given parameters into the formula, we have;
[tex]Average \; velocity = \frac{300}{15}[/tex]
Average velocity = 20 meters per seconds.
Therefore, the average velocity of the car is 20 meters per seconds.
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whats the role of the suns gravity in the solar system
The suns gravity pulls on the planets and keeps them in place. Its gravitational pull puts them in orbit around the sun
The role of the sun's gravity is to keep the planets in place.
What is the sun's gravity?The Sun has multiple roles in every Earth's space operations.The Sun provides the gravitational force to the solar system. Its gravitational pull keeps all the planets in their respective orbits. Every planet that is revolving around the sun is due to its gravitational effect.The sun produces a lot of electromagnetic radiation and the sun's rays are full of radioactivity.And the solar wind from the sun can be used by spacecraft for mobility.To learn more about the sun's gravity refer to:
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All solids above 1000 K begin to emit radiation in what range on the electromagnetic scale?
radio
infrared
visible Light
ultraviolet
Answer:
Infrared
Explanation:
Wien's displacement law states that the peak wavelength of the radiation emitted by an object is given by
[tex]\lambda=\frac{b}{T}[/tex]
where
[tex]b=2.898\cdot 10^{-3} m\cdot K[/tex] is the Wien's displacement constant
T is the absolute temperature of the object
In this problem,
T = 1000 K
So the peak wavelength of the radiation emitted by the body is
[tex]\lambda=\frac{2.898\cdot 10^{-3} m\cdot K}{1000 K}=2.90\cdot 10^{-6} m = 2.90 \mu m[/tex]
And this corresponds to infrared radiation, whose range of wavelength is 700 nm - 1 mm.
Answer:
The correct answer is visible light.
Explanation:
Interference is an example of which aspect of electromagnetic radiation
Answer:
We experience interference while listening to the radio. A radio station works by sending and receiving radio waves. Since the radio waves are being interfered with other waves which must have a wave nature.
The interference is the net result of two individual waves. It can be constructive or destructive interference and is the property of waves and not particles.
This interference is an example of electromagnetic radiation. Thus we experience wave behavior of electromagnetic radiation in our daily communications.
Answer: wave behavior
Explanation:
A filled water tower sits on the top of the highest hill near a city. The cylindrical tower has a height of 55.0 m
Find the pressure (in kPa) on the bottom of the water tower
Answer:
539 kPa
Explanation:
Pressure equals density times acceleration of gravity times depth.
P = ρgh
Water has a density of 1000 kg/m³, and acceleration of gravity is 9.8 m/s².
P = (1000 kg/m³) (9.8 m/s²) (55.0 m)
P = 539,000 Pa
P = 539 kPa
When does total internal reflection occur?
A. when the angle of incidence exceeds the angle of reflection
B. when the angle of incidence is less than the angle of reflection
C. when the angle of incidence is less than the critical angle
D. when the angle of incidence exceeds the critical angle
PLEASE GIVE A STRAIT ANSWER PLEASE
Answer:
A
Explanation:
I believe it is A because reflection is usually like a mirror or in water the other ones described are refraction or conversion. Hope this helps! :)
A blender with a total resistance of 6 ohms runs on a voltage of 190 volts. How much current does it use? NEED TO KNOW ASAP PLEASE HELPPPPP
The answer is 31.67 Amps.
Why?To solve the problem, we need to use Ohm's Law equation, which states that:
[tex]V=IR[/tex]
Where,
V, is the voltage (in volts)
I, is the current (in Amps)
R, is the resistance (in Ohms)
We are given the following information:
[tex]Voltage=190v\\Resistance=6\Omega\\[/tex]
So, using Ohm's Law equation and substituting the given information, we have:
[tex]V=IR\\\\190v=I*6\Omega\\\\I=\frac{190v}{6\Omega}=31.67Amps[/tex]
Hence, we have that the current used by the blender is 31.67Amps.
Have a nice day!
An atomic nucleus is composed of A) protons. B) protons and neutrons. C) protons and electrons. D) protons, neutrons, and electrons.
Answer:
B) protons and neutrons.
Explanation:
The protons and neutrons are located in the nucleus of the atom and represent most of the 'mass' of the atom, that's their count that determine the 'mass' of an atom (like 12 for Carbon).
The electrons rotate around the nucleus and have a negligible mass.
Answer:
B
Explanation:
Protons have a positive charge, while neutrons have a no charge (neutral). There two components make up the nucleus. While electrons go around the nucleus creating an electron cloud.
Raw data often appears in published scientific journals. Please select the best answer from the choices provided T F
Answer: The correct answer is False.
Explanation: The term "raw data" refers to the data that has not been processed or "clean" for use. A scientific journal is a type of publication that specializes in publishing new researches of the scientific field. These researches contain information, that is considered the end product of processing the raw data. It is most likely that raw data would not be used as it comes in published scientific articles.
Answer: It's false
Explanation:
I got it right on edge.
a baseball with a mass of 0.15 kg is moving at a speed of 40.0 m/s. What is the baseball's kinetic energy from this motion?
Answer:
The baseball's kinetic energy is 120 joules.
Explanation:
The kinetic energy is defined as:
[tex]k_{e} = \frac{1}{2}mv^{2}[/tex] (1)
Where [tex]k_{e}[/tex] is the kinetic energy, m is the mass and v is the velocity.
The kinetic energy represents how much energy have an object as a consequence of its movement.
For the case of a baseball (m = 0.15 kg, v = 40.0 m/s):
[tex]k_{e} = \frac{1}{2}(0.15kg)(40.0m/s)^{2}[/tex]
[tex]k_{e} = 120 Kg.m^{2}/s^{2}[/tex]
But 1 j = [tex]kg.m^{2}/s^{2}[/tex]
[tex]k_{e} = 120 j[/tex]
Hence, baseball's kinetic energy is 120 joules.
how do you know the earth is rotating on its axis
Answer:
Read below!
Explanation:
You can watch the sun wheel across the sky during the day, and the stars at night. Focus a telescope on any star besides the north star--especially southern stars--and you can watch them drift across your field of view.
An alternative explanation is that all the stars are painted on (or holes in) some canopy that rotates around the earth. This explanation does not account for the motion of the "wanderers," or planets, as the Greeks called them, or for the path of the moon among the stars.
As we know the stars are massive bodies of significant and varying distance to the earth, the notion they all swing around us in unison seems highly implausible
An adiabatic process is performed on 15 moles of an ideal gas (γ = 1.44). What is the heat capacity at constant pressure for the gas? Let the ideal-gas constant R = 8.314 J/(mol • K).
25 J/(mol • K)
27 J/(mol • K)
31 J/(mol • K)
23 J/(mol • K)
29 J/(mol • K)
Answer:
27 J/(mol • K)
Explanation:
γ = Cp / Cv
We're given γ and we need to find Cp (heat capacity at constant pressure) per mole. First we need to find Cv (heat capacity at constant volume). Cv is defined as:
Cv = Cp − nR
where n is the number of moles and R is the ideal gas constant.
So:
γ = Cp / (Cp − nR)
γ (Cp − nR) = Cp
γ Cp − γnR = Cp
(γ − 1) Cp = γnR
Cp / n = γR / (γ − 1)
Given γ = 1.44 and R = 8.314 J/mol/K:
Cp / n = (1.44) (8.314 J/mol/K) / (1.44 − 1)
Cp / n = 27 J/mol/K
Select all that apply.
a column of air in a tube is vibrating at its fundamental frequency of 150Hz. Which of the following frequencies could also exist in the tube as harmonics?
- 75 Hz
- 225 Hz
- 300 Hz
- 450 Hz
Answer:
-300 Hz
-450 Hz
Explanation:
As we know that frequency of nth harmonic mode is known as
[tex]f_n = \frac{nv}{2L}[/tex]
now we know that for fundamental mode of frequency we will have
n = 1
[tex]f_o = \frac{v}{2L}[/tex]
so we will have
[tex]f_n = n f_o[/tex]
now given that
[tex]f_o = 150 Hz[/tex]
and also we have
n = integer
so we will have
n = 2
[tex]f = 300 Hz[/tex]
n = 3
[tex]f = 450 Hz[/tex]
Answer:
300 and 450
Explanation:
what type of test charge do we use for an electrical field ?
Answer:
A positive charge with very small charge compared to the charge source of the field
Explanation:
Let's consider an electric field produced by a source charge Q.
In order to test the direction and magnitude of the electric field, we use a positive test charge q. The reason for chosing a positive charge is that a positive charge will move following the directions of the electric field lines (in fact, the positive charge will be repelled from charge Q if charge Q is positive, so it will follow the electric field lines, which point away from the charge).
Moreover, the test charge q must be small compared to charge Q. This is because we don't want to modify significantly the configuration of the electric field, so the test charge q must be negligible compared to charge Q.
the ability of an organism to maintain a stable internal environment even when the external environment changes
Answer:
homeostasis!
Explanation: