A boy throws a ball up in the air with a velocity of 9 m/s when they standing at the edge of a cliff 22 m high.
a) If the ball falls and lands at the base of the cliff, what is the velocity of the ball
when it lands?
b) How long was the ball in the air?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.

What sort of waves exhibit the doppler effect?