A10.-newton force is required to hold a stretched spring 0.20 meter from its rest position. what is the potential energy stored in the stretched spring?

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

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.