A machines mechanical advantage is the number of times the machine multiplies the input force. True or False?

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia

Does heating a metal wire increase or decrease its electrical resistance? why?

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?