What does it mean for their to be a net force on an object vs no net force? Which one is described as balanced forces and which is described as having unbalanced forces? ✨help✨

Describe uniform velocity and variable velocity in short

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.

Properties seen when one one substance changes to another are known as properties