John rides his bike for 40 miles in 60 minutes. His speed is 0,67 miles per minute. How could this be made a velocity?

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

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.

The energy released by a nuclear fusion reaction is produced when