Which statement is true according to newtons second law of motion?
a) an object accelerates in the direction opposite to the direction of the force applied.
b) an object accelerates in the direction perpendicular to the direction of the force applied.
c) an object accelerates in the same direction as that of the force applied.
d) an object undergoes no acceleration on the application of force.
e) an object's acceleration is independent to the force applied.

Which statement best describes how private industry decides where to spend the money on research and development

The slope of a velocity time graph over any interval of time gives the during that interval

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.