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statuscvo [17]
3 years ago
12

Which describes how electromagnetic waves travel?

Physics
1 answer:
Slav-nsk [51]3 years ago
7 0

Answer:

Travels through solid materials, and air.... but it can also travel through the vacuum of space

Explanation:

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A 2.0kg pendulum swings from point A of a height of 0.10m to a point B of the same height. The heights are relative to the lower
mr_godi [17]
Please press “Thanks!” after viewing my answer:
The change in Gravitational Potential Energy (GPE) is actually 0! Think about it:
What is the formula for it?
Well, GPE = mgh.
So, when the height is the same in both cases, we know the gravitational potential energy is the same. Therefore, change in GPE = 0.
Sure, GPE did transform to KE during the swing, but all of that KE transformed back into the original amount of GPE.

Hope this helped! Please press “Thanks!”
4 0
3 years ago
Which of the following has longest wavelength, a) blue light b)red light c)x-rays d)gamma rays ?
prisoha [69]
Not sure .sorry I just don't understand.
6 0
3 years ago
You are pushing a box toward your friend with a force of 15 N, and your friend is pushing the box toward you with a force of 30
sleet_krkn [62]

Answer:

A. Net force is 15 N.

B. The answer is given below.

Explanation:

The following data were obtained from the question:

Force applied by you (Fᵧ) = 15 N

Force applied by your friend (Fբ) = 30 NForce applied by you (Fᵧ) = 15 N

Force applied by your friend (Fբ) = 30 N

Net force (Fₙ) =?

A. Determination of the net force.

Force applied by you (Fᵧ) = 15 N

Force applied by your friend (Fբ) = 30 N

Net force (Fₙ) =?

Fₙ = Fբ – Fᵧ

Fₙ = 30 – 15

Fₙ = 15 N

Thus, the net force acting on the box is 15 N.

B. From the question given above, we can conclude that the box will move towards you because the force applied by your friend is greater than yours.

4 0
3 years ago
when energy is transferred from one part of a system to another, some of the energy is lost during the transfer and cannot be us
AlladinOne [14]

Sentences A and D describe examples of energy transformation.Heat is produced when a car's tires rub against the pavement and as electricity passes across power wires, they become hotter.

<h3>What is the law of conservation of energy?</h3>

According to the law of conservation of energy, the energy of an isolated system stays unchanged throughout time.it is said to be conserved.

Energy cannot be created nor destroyed and can be transferred from one form to the other form.

The complete question is

"When energy is moved from one component of a system to another, some of the energy is lost and cannot be used as planned.

Which two statements provide examples?

A. Friction between a car's tires and the road produces heat.

B. Sunlight strikes a solar panel, generating electricity.

c. Stereo speakers emit a sound when powered by electrical energy,

D. Wind moves a turbine, generating electricity.

I E. Power lines heat up as electricity flows through them."

Some of the energy wasted during the movement of energy from one section of a system to another is heat is produced by friction between a car's tires and the road and as electricity passes via power lines, they heat up.

Hence, sentences A and D describe examples of energy transformation.

To learn more about the law of conservation of energy refer to the link;

brainly.com/question/2137260

#SPJ1

5 0
2 years ago
27N-(u)(14kg)(9.8m/s^2)=0
atroni [7]
If u is about 0.2 (no unit) then the whole left side is zero.
4 0
4 years ago
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