Vector has a magnitude of 130 units and points 31.0 ° north of west. vector points 66.0 ° east of north. vector points 14.0 ° west of south. these three vectors add to give a resultant vector that is zero. using components, find the magnitudes of (a) vector and (b) vector .

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?

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

What kind of simple machine is a catapult?