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A book with a mass of 1.53 kg is lifted from the ground to a height of 4.0 meters. The increase in the book’s gravitational potential energy is approximately
a. 64 J
b. 60. J
c. 599 J
d. 64 J
e. Others _____

Which quantity is not a vector?
a. Momentum
b. Impulse
c. Acceleration
d. Force
e. Mass

40. joules of work is required to push a 2.0-kilogram box up the full length of a ramp that is 8.0 meters long. What is the magnitude of the force applied to the box to do this work?
a. 20. N
b. 5.0 N
c. 25 N
d. 80. N
e. Others ______

Sagot :

Answer:97 j

explination: master has givin dobby a glock dobby is thug

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