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The diagram below shows an inclined plane (in red) that movers use to raise heavy objects against the force of gravity and into a truck.
Which of the following is true about the simple machine shown in red?
A.
It reduces the weight of objects being carried into the truck.
B.
It shortens the distance needed to carry objects into the truck.
C.
It reduces the amount of energy needed to carry objects into the truck.
D.
It reduces the size of the force needed to carry objects into the truck.
Answers: 3
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Which of the following quantities are units of momentum? (there could be more than one correct choice.) a)n m b) kg s/m c) kg m/'s d)n-s 12 points] e) kg m2/s2
Answers: 2
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A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 2
Physics, 22.06.2019 15:00
Give an example in which the electrical energy changes to light energy
Answers: 1
6
The diagram below shows an inclined plane (in red) that movers use to raise heavy objects against...
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