A 2-kg block rests on a wall that is 3 m tall. What is the gravitational potential energy of the block? The force of gravity on Earth (g) is equal to 9.8 m/s2

PE= weight x height. (remember weight is the force of gravity acting on objects...NOT the same as mass)

PE=3*2*9.8

PE=6*9.8

PE=58.8 J (for joules which is the unit for both Kinetic and potential energy)

Hope this helps :D

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investment b is an ordinary annuity with $3,909.64 in the account after one year.

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