Number six please it’s for a test

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

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.

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?