Physics, 27.09.2019 22:00 rainbowmc6
Andrew pokes a marble, and the marble rolls down a ramp. the marble moves with speed. which forces are acting on the marble in this situation?
when andrew pokes the marble, he gives it [a tension/a friction/an applied/] force. as the marble rolls down the ramp, [tension/normal/gravitational}, force pulls it down. the movement of the marble is slowed down by [gravitational force/friction/elastic force] from the ramp
Answers: 2
Physics, 22.06.2019 02:00
Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *
Answers: 1
Physics, 22.06.2019 10:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
Physics, 22.06.2019 16:50
During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
Answers: 2
Physics, 22.06.2019 17:20
Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.
Answers: 1
Andrew pokes a marble, and the marble rolls down a ramp. the marble moves with speed. which forces a...
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