Answer:
Doppler Radar gathers information about precipitation by sending out pulses of ___Radio wave___ energy
Between 1589-1592 when he discovered projecctile motion
Answer: the water level would rise since the pebble displaces minimal water compared to the boat.
Explanation:..........
B) gravitational to kinetic
Explanation:
The skydiver, when he is located at a certain height h above the ground, possesses gravitational potential energy, equal to:

where m is the mass of the skydiver, g is the gravitational acceleration and h is the height above the ground. As he falls, its height h decreases, while his speed v increases, so part of the gravitational potential energy is converted into kinetic energy, which is given by

so, we see that as v increases, the kinetic energy increases. Therefore the correct answer is
B) gravitational to kinetic