A ball is thrown straight upward and returns to the thrower's hand after 3.05 s in the air. A second ball thrown at an angle of 28.0° with the horizontal reaches the same maximum height as the first ball. At what speed was the first ball thrown?

U = 17.15m/s.

Explanation:

The ball rises up a height h. After reaching this height the ball falls back down this same height. The time taken to rise the height h is also equal to the time taken to fall the same height.

So the total time taken for the flight 3.50s is equal to 2× the time taken to rise to height h, t.

See the attachment below for the complete solution.

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~