Two cars have a 500 m race. They both start from the x = 0 position. Car 1 drives at a constant speed of 30 m/s. Car 2 starts from rest and accelerates at a constant rate of 4 m/s2
a. Write the equation of motion for car 1. b. Write the equation of motion for car 2.

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

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).

What happens when the number of protons in an atom changes