Is work being done when a hiker puts on a bag

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?

Why should seat belts not be mandatory quick plz

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good