Assume that the diagram above shows infrared radiation. How would a diagram showing X-rays be different

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.