Question

What is the gravitational potential energy of the tennis ball at the top of each hill?
(mass of a tennis ball is approximately .057 kg) Hint: Remember to convert centimeters to meters.

The heights of each hill is:

The first one : 49 cm
The second one : 32 cm
The last one: 21 cm

Answer 1

use the equation
potential energy =Mass * g*height

Answer 2

would it be
The first hill: 49 cm = 0.49 meters
The second hill 32 cm = 0.32 meters
the last hill: 21 cm = 0.21 meters

Answer 3

yaaa right

Answer 4

That's the answer? or was that sarcasm?

Answer 5

no that not answer

Answer 6

http://easycalculation.com/physics/classical-physics/potential-energy.php

Answer 7

did it help you

Answer 8

P.E =0.49*9.8*0.57=2.73
like this calulate for other two

Answer 9

Hill #1: 49 cm = 0.49 meters. at the top of the hill the gravitational potential energy is 0.27 J
Hill #2: 32 cm = 0.32 meters. At the top of the hill the gravitational potential energy is 0.18 J
Hill #2: 21 cm = 0.21 meters. At the top of the hill the gravitational potential energy is 0.12 J

Answer 10

is this right? :)

Answer 11

not 0.27 its 2.7
and same for all you do1.8 and 1.2

Answer 12

Thank you so much! They are all right after I just fix the periods?

Answer 13

ur welcome

Answer 14

Hill #1: 49 cm = 0.49 meters. at the top of the hill the gravitational potential energy is 2.7 J
Hill #2: 32 cm = 0.32 meters. At the top of the hill the gravitational potential energy is 1.7 J
Hill #2: 21 cm = 0.21 meters. At the top of the hill the gravitational potential energy is 1.1 J

I think these are all right. i calculated all of them.

Answer 15

1)P.E =0.49*9.8*0.57=2.73 J is P.E of tennis ball on firstst hill
2)P.E =0.32*9.8*0.57=1.78 J is PE of tennis ball on second hill
3)P.E=0.21*9.8*0.57 =1.17 J is PE of tennis ball on second hill

Answer 16

I cant thank you enough! thnak you!

Answer 17

ur welcome