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arlik [135]
4 years ago
15

Which factors cause kinetic energy to increase?

Physics
1 answer:
stich3 [128]4 years ago
3 0
Increases mass and vecolity
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Metal surfaces on spacecraft in bright sunlight develop a net electric charge.
koban [17]

Answer:

Positive.

Explanation:

As a consequence of the photoelectric effect, electrons that will get hit by sufficiently energetic photons will abandon the metal surfaces exposed to bright sunlight. This decreases the negative charge of the surface, thus causing it to develop a positive net charge.

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3 years ago
How many phase changes does ice undergo when it changes to water vapor in the water cycle?
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- Melting
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Two.
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PLEASE HELP. The diagram shows molecules in a fluid. Explain the sequence of events that happens when this fluid cools down. Be
docker41 [41]

Answer: When the fluid cools, the kinetic energy of the molecules decreases. this causes the molecules to slow down and move closer together, the density of the fluid increases and the fluid sinks

Explanation: Just took the test & it gave the answer or sample response.

6 0
4 years ago
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A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours. What is
Andreas93 [3]

Answer:

51 mph

Explanation:

Given: A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours.

Formula: Speed=\dfrac{Distance}{Time}

Let speed of aircraft be x mph and speed of wind y mph

Aircraft along wind:

Actual speed of aircraft = x + y

                    Time taken = 3 hours

                        Distance = 612 miles

\therefore x+y=\dfrac{612}{3}

x+y=204----------(1)

Aircraft against wind:

Actual speed of aircraft = x - y

                    Time taken = 6 hours

                        Distance = 612 miles

\therefore x-y=\dfrac{612}{6}

x-y=102----------(2)

By solving equation (1) and equation (2) and we get

x = 153 mph

y =  51 mph

Hence, The speed of wind will be 51 mph

6 0
3 years ago
Which three types of electromagnetic waves carry most of the Sun's energy that strikes Earth?
pshichka [43]

Answer:

A.

Explanation:

3 0
4 years ago
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