Light____.-requires a medium to travel
- is refracted when it bounces off a shiny surface
-is created by vibrations in electric and magnetic fields
-moves in longitudinal waves

Answers

Answer 1

Answer:

Light is created by vibrations in electric and magnetic fields because the light is an electromagnetic wave, therefore the correct answer is option C

What is an electromagnetic wave?

The oscillation of an electric field and a magnetic field produces electromagnetic waves, which are waves. In other words, electromagnetic waves (EM waves) are made up of vibrating magnetic and electric fields that are orthogonal to one another.

It is undeniable that we experience solar radiation, which is an electromagnetic wave that originates from the sun and can travel through space to the planet.

Light is a form of electromagnetic which is made up of the electric and magnetic filed that are orthogonal to each other, light can travel without any medium.

Thus, Light is created by vibrations in electric and magnetic fields, because the light is an electromagnetic wave, therefore the correct answer is option C

Learn more about Electromagnetic waves from here

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Answer 2

Answer:

Answer:

Explanation:

light does not need a medium

it is refracted

Light is made up of little packets of energy called photons.

electromagnetic waves

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The force that one surface exerts on another when the two rub against each other is calledA. friction. B. acceleration. C. inertia. D. gravity.The law of universal gravitation states that any two objects in the universe that have mass, without exception,A. attract each other. B. repel each other. C. combine to provide a balanced force. D. create friction.ANswer both
If the angular displacement= 3t²+2t,find the angular velocity and angular acceleration

What is a bond called that shares electrons between two neutral atoms? A.covalent bond B.ionic bond C.metallic bond D.polar bond

Answers

The type of the chemical bond that forms when electrons are shared between atoms that are neutral, have no electrical charge is A. Covalent bond.

Pretty sure it's B. I took Natural sci softmore year and got A in the class

The park has added two more cars to the already existing roller coaster. If the park wants to maintain the speed of the roller coaster with the addition of the cars, what must it do? A) Increase the height a point A. B) Increase the heights at point A and B. C) Reduce the number of hills and dips in the course. D) Increase the friction between the wheels and the track.

Answers

D because friction will slow it down going up hills (for safety reasons) and you go really fast going down.

Answer:

Decrease the friction between the wheels and the track.

Explanation:

Decrease the friction between the wheels and the track. Friction opposes motion. If the amount of friction is decreased, the speed of the cars should increase.

This answer is for the question on usa testprep

Which of the following are also major levels of classification? A. Genus B. Species C. Group.

Answers

I think it is A and or B

I think it is B or C

7. What mass of water will change its temperature by 3.0°C when 525 J of
heat is added to it?

Answers

The mass of the water is 41.9 g

Explanation:

When an amount of energy Q is supplied to a sample of substance of mass m, the temperature of the substance increases by $\Delta T$ , according to the equation:

$Q=mC_s \Delta T$

where:

m is the mass of the substance

$C_s$ is the specific heat capacity of the substance

$\Delta T$ is the change in temperature

In this problem, we have:

Q = 525 J is the amount of heat supplied to the water

$\Delta T = 3^(\circ)C$ is the change in temperature of the water

$C_s = 4.18 J/gC$ is the specific heat capacity of the water

Solving for m, we find the mass of the water:

$m=(Q)/(C_s \Delta T)=(525)/((4.18)(3.0))=41.9 g$

Learn more about specific heat capacity:

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Please Help Meee.. Will give brainlest What is the total resistance in the circuit depicted? Use R1 = 7.00 Ω, R2 = 8.00 Ω, R3 = 4.00 Ω, R4 = 6.00 Ω, R5 = 3.00 Ω, R6 = 8.00 Ω.

36.0 Ω

19.6 Ω

18.3 Ω

25.9 Ω