A cup has a mass of 0.0650 kg and a volume of 0.000250 m3, and is floating
in fresh water. Pennies are put into the
cup until the top of the cup is level with
the water line. What is the mass of the
pennies in the cup?

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

positive reinforcement? ?

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.