A wire carrying current I from south to north then passes directly over top of the compass. As a result, the compass needle A) deflects toward the east B) deflects toward the west C) flips around 180 o and points south D) remains undeflected pointing north.

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?