An object has an acceleration of 30.0 m/s/s. The mass of the object is tripled while the net force of the object is constant. What will the new acceleration be? a. 30.0 m/s/s
b. 15.0 m/s/s
c. 10.0 m/s/s
d. 90.0 m/s/s

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

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

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