In which of the following is no work done?

A 100 m long ski lift carries skiers from a station at the foot of a slope to a second station 40 m above. What is the IMA of the lift?

A machine is classified as a compound machine if it

The power of a machine measures

The bottle opener is what type of a lever?

The mechanical efficiency of any machine is always _____ than 100%.

The force that is exerted on a machine is called the __________ force.

2 or more simple machines working together to make up a(an) ______ machine

Besides a reduction in friction, the only way to increase the amount of work output of a machine is to _______ the work input

A device that changes the size or direction of force used to do work is called a(an) _______

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