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"g" is equal to what number at Earth's surface?
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
In a perfect world, the total energy of a pendulum would never change.
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
In which part of a pendulum's swing is it moving the fastest?
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
Machines are capable of creating energy.
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
Pulleys are capable of all of the following EXCEPT
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
No machine can every be 100 percent efficient in real life.
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
How can a pulley system's mechanical advantage be calculated simply?
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
Levers, inclined planes (and most simple machines) increase input force at the expense of what?
input distance
creating energy
False
At the bottom of its swing
True
count the number of pulleys
True
9.8
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