Tarzan, who weighs 688 n, swings from a cliff at the end of a vine 18 m long. from the top of the cliff to the bottom of the swing, he descends (goes down) by 3.2 m. the vine will break if the force on it exceeds 950 n. a) does the vine break? b) if no, what is the greatest force on it during the swing? if yes, at what angle with the vertical does it break?

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.

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point