A compound machine is one that consists of a couple simple machines working together, like a wheelbarrow contains the lever, axle, and wheel. While a simple machine would just be those individually, or anything else that can be used for applying a force.<span />
True.
Centripetal force is the force that keeps an object moving around a centre, and the velocity of the object is always changing as it travels round the centre. The centripetal force hence causes centripetal acceleration.
C.) A thunderstorm
That’s the Answer
A chemical change is when a substances chemical properties change, for example, baking a cake. A physical change is when the appearance/odor/texture etc. change, for example, ice melting