50 points answer correctly what are beats? a )periodic fluctuations in the velocity of sound waves b ) periodic fluctuations in the wavelength of sound waves c ) periodic fluctuations in the intensity of sound waves d ) periodic fluctuations in the frequency of sound waves

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Asap time is ! best answer gets compose at least one well-developed paragraph on the following: define the term concurrent powers, and give an example of a concurrent power of government.

How do you tell if someone actually cares about you? and just say they do?