Physics, 11.02.2021 21:00 graciearany
A student standing on a hill throws a snowball horizontally 4.5 m above the level ground toward a smokestack 15 m away. The snowball travels a path that includes positions A and B, shown in the diagram above.
At which position, if either, is the magnitude of the snowball’s velocity vector greater? Justify your answer.
If the snowball hits the smokestack 1.2 m above the base, how fast was it thrown? (Think about what the y displacement of the snowball is)
Answers: 1
Physics, 22.06.2019 06:00, ayoismeisalex
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
Answers: 1
Physics, 22.06.2019 12:10, JN02
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.
Answers: 1
Physics, 22.06.2019 14:30, rachel2005smith
Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal
Answers: 1
Physics, 22.06.2019 16:00, ggdvj9gggsc
Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
A student standing on a hill throws a snowball horizontally 4.5 m above the level ground toward a sm...
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