What is the best way to test Newtons Second law: F=MA Allow the same object to roll down the same hill at the timing the rate 3 times.
Allow different massed objects to roll down the same hill timing the rate each time.
Allow three different massed objects to roll down three different hills timing the rate each time.
Push three different massed people with three different forces and time their rates.

hail is a solid form of precipitation composed of large, layered ice particles called pellets that often have spherical shapes. this phenomenon occurs during thunderstorms in the could type known as cumulus

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the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures