Agust of wind pushes a beach ball with a force of 9 newtons. the ball rolls 10 meters in 3 seconds. what is the power of the wind?

30 Watts

Explanation:

Power is given by the formula P = W / t; where P is power, W is work, and t is time.

Work is given by the formula W = F x d; where F is the force, and d is the distance traveled.

Since we do not know the amount of work done, we have to calculate it:

W = F x d

W = (9 N) x (10 m)

W = 90 Nm  (The unit for work is Newton-meters)

We now have the value for work, so we can calculate power:

P = W / t

P = (90 Nm) / (3 s)

P = 30 W  (The unit for power is Watts)

b.transmitters send radio waves, and receivers capture radio waves.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.