an arrow is fired with a force of 220 N towards a target which is 20 m away. If the stow has a weight of 25 N, how fast will it accelerate

Agalvanometer has an internal resistance of 100 ω and deflects full-scale at 2.00 ma. what size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 ma, and how should this resistor be connected to the galvanometer?

Asample of a gaseous substance changes into a liquid

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?