Physics, 28.02.2020 20:48 NNopeNNopeNNope
Two 0.50-kg carts, one red and one green, sit about half a meter apart on a low-friction track. You push on the red one with a constant force of 4.0 N for 0.17 m and then remove your hand. The cart moves 0.33 m on the track and then strikes the green cart. a. What is the work done by you on the two-cart system?b. How far does the system's center of mass move while you are pushing the red cart?c. By what amount does your force change the kinetic energy of the center of mass of the system?
Answers: 2
Physics, 22.06.2019 11:30
Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)
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Physics, 23.06.2019 01:00
To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.
Answers: 1
Physics, 23.06.2019 08:30
Zamir and talia raced through a maze. zamir walked 2 m north, 2 m east, 4 m south, 2 m east, 4 m north, 2 m east, 3 m south, 4 m east and 4 m north. talia walked 2 m north, 6 m east, 3 m south, 4 m east, and 4 m north. compare their displacements: zamir's displacement is talia's displacement.
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Physics, 23.06.2019 13:00
Which of the following is not associated with mechanical energy? a. motion b. position c. density d. shape
Answers: 1
Two 0.50-kg carts, one red and one green, sit about half a meter apart on a low-friction track. You...
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