If a rocket in space is moving at a constant velocity of 9.8 m/s and then uses its propulsion system to accelerate to 68. m/s during a 300.0 second burn, what would be the acceleration of the rocket?

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.