How is the Doppler Effect used in astronomy and/or meteorology?

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?

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine