What happens to the work done when a force is doubled and the distance moved remain the same?​

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec