11/19/19

#### physics question

A crate is pulled to the right with a force of 94.4 N, to the left with a force of 128.6 N, upward with a force of 509 N, and downward with a force of 246.8 N.What is the net external force in the...
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11/19/19

#### initial/final kinetic energy / work

The velocity of a car of mass 1200kg changes of 10 m/s to 60 m/s. a. Calculate the initial kinetic energy (K.Ei) of the car. b. Calculate the final kinetic energy (K.Ef) of the car. c. Write down...
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11/01/19

#### Physics energy questions

1.What is the potential energy of a 300 kg boulder that sits on the edge of a 25 m tall cliff?2.A person eats an 199,000 J snack before working out. If the person uses all of their eaten energy to...
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12/13/18

#### A 57 kg girl skies down a 240 meter frictionless slope. What is her Velocity 100 meters from the bottom? What is her kinetic energy 100 meters from the bottom?

I need help with physics homework.

10/25/18

#### AP Physics Projectile motion?

Im currently on a WebAssign for my AP Physics Class and this problem has been a real pain. Here's the scenario:A projectile is shot from the edge of a cliff h = 285 m above ground level with an...
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