A mover packs books, CDs, and DVDs into a moving box. If the box contains 6. 5 kg of books, 1. 5 kg of CDs, and 2. 0 kg of DVDs, what is the percent by mass of each object in the box? Books: % of the mass CDs: % of the mass DVDs: % of the mass.

If forces acting on an object are unbalanced. true or false

What equation is used to calculate the weight of an object on a plant ?

Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).