Physics, 11.03.2020 18:31 emmahuber980
A child and sled with a combined mass of 57.0 kg slide down a frictionless slope. If the sled starts from rest and has a speed of 2.40 m/s at the bottom, what is the height of the hill?
Answers: 1
Physics, 21.06.2019 22:30
25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
Answers: 1
Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
Answers: 2
Physics, 23.06.2019 01:30
The amount of potential energy possessed by an elevated object is equal to
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Physics, 23.06.2019 06:30
If a 2 ounce coin is dropped from the top of the washington monument and has a final velocity of 300 mph (miles per hour) when it hits the ground, how much kinetic energy will it have at that time?
Answers: 2
A child and sled with a combined mass of 57.0 kg slide down a frictionless slope. If the sled starts...
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