Physics, 25.11.2020 03:00 hungtistic
9) Which statement is correct about the potential energy of a car moving down a ramp?
-Potential energy depends on the mass and velocity of the car.
-Potential energy remains constant because total energy is constant.
-Potential energy is highest when the car is released at the top of the ramp.
-Potential energy is highest when the car reaches the bottom of the ramp
10)In a closed system of a cannon and cannonball, which changes would both result in an increase in the kinetic energy of the cannonball when fired from the cannon?(
increase the mass of the cannon or decrease the mass of the cannonball
increase the mass of the cannon or increase the mass of the cannonball
decrease the mass of the cannon or increase the mass of the cannonball
decrease the mass of the cannon or decrease the mass of the cannonball
Answers: 3
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Abig box of sausages (30 kg) are lifted from the ground to the top shelf of the freezer. if the box is lifted at a constant speed, a distance of 1.75 m, what work is done by gravity?
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9) Which statement is correct about the potential energy of a car moving down a ramp?
-Potential en...
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