Disadvantage of entrepreneurship

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

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.