Levers, inclined planes (and most simple machines) increase input force at the expense of what?

No machine can every be 100 percent efficient in real life.

Pulleys are capable of all of the following EXCEPT

In which type of lever is the fulcrum located in between the load and the input force?

A pulley system consists of 3 pulleys that lift a 1500 N crate 500 meters. What is the mechanical advantage of the pulley system?

In which part of a pendulum's swing is it moving the fastest?

Machines are capable of creating energy.

How can a pulley system's mechanical advantage be calculated simply?

In a perfect world, the total energy of a pendulum would never change.

"g" is equal to what number at Earth's surface?

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