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suter [353]
3 years ago
15

Which waves can travel through space?

Physics
2 answers:
cricket20 [7]3 years ago
7 0

Answer:

A: Electromagnetic waves only

Explanation:

xz_007 [3.2K]3 years ago
4 0

Answer:

electromagnetic waves only

Explanation:

I just took the test, Hope it helps!

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A pitcher can throw a fastball that reaches home plate at 95 mph. What is this speed in m/s
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42.47 meters per second
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3 years ago
Explain how newton's third law of motion is at work when you walk
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Action reaction when you push on the ground the ground pushes you back 
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Three cannons are located at the top of a cliff above a level plain. Cannon A is aimed at an angle of 25° above the horizontal a
vodka [1.7K]

Answer:

The canon B hits the ground fast.

Explanation:

Given that,

Speed of cannon A = 85 m/s

Speed of cannon B= 100 m/s

Speed of cannon C = 75 m/s

We need to calculate the cannonballs will hit the ground with the greatest speed

Using conservation of energy

The final kinetic energy of canon depends on initial kinetic energy and potential energy.

The  final velocity depends upon initial velocity and initial height.

So,  the initial velocity of canon B is high.

Hence, The canon B hits the ground fast.

3 0
3 years ago
Discuss how energy conservation applies to a
timofeeve [1]

Answer:

a) in the upper position. b) in the lower position. c) in the lower position. d) in the upper position. f) Its kinetic and potential energy will be 0, but the energy is transferred to the element or body that stopped the movement of the pendulum

Explanation:

In the attached image we have the sketch of a pendulum system.

A) The potential energy is maximum when the pendulum is in the upper position (image, fig 1) because the elevation (h) is maximum with respect to the reference point.

B) the potential energy is minimum when the pendulum is in the lower pasition (image, fig 2) because the elevation (h) is cero with respect to the reference point.

Note: When the pendulum is coming down the potential energy is transforming in kinetic energy.

C) The kinetic energy is maximum when the pendulum is in the lower position (image, fig 2), because the potential energy has been transformed in kinetic energy.

D) The kinetic energy is maximum when the pendulum is in the upper position (image, fig 1) because at this moment the pendulum is at rest it means its velocity is 0. We know that the kinetic energy depends on the velocity.

f) The energy is transferred to the element or body that stopped the movement of the pendulum

4 0
3 years ago
Which of the following light waves will have the highest frequency?
ira [324]

Answer:

a. blue light

Explanation: hope this helps :)

8 0
3 years ago
Read 2 more answers
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