What loses heat when ice is added to liquid water.

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

When you turn on a battery-operated device, an electrical circuit is

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.