For round objects rolling down an incline, the fastest objects are generally those with the . a. greatest rotational inertia compared with mass b. lowest rotational inertia compared with mass c. most streamlining for reduce air drag d. highest center of gravity

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.