Jim and david decide to arm wrestle to determine who is stronger. jim uses all of his strength, but david wins and is able to push jim's hand to the table. the forces acting on jim's hand during the match a. are unaffected by david. b. have a net force of zero. b. are unbalanced. d. are balanced.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.