A student is trying to determine the maximum rate at which a truck can accelerate to the right without causing the 60kg box sliding off the back of the truck. The coefficient of static friction between the box and the truck bed is 0.73 and the coefficient of kinetic friction is 0.56. Neglect drag.

Amass has an acceleration of 10- 2t. what is its velocity and displacement if it started at x- 4m and the initial velocity was 8m/s? at what time does it have 0 velocity? graph all graphs.

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.

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical