Physics, 02.04.2020 19:42 joseperez1224
A solid uniform ball rolls without slipping up a hill that is 30m tall at its peak. At the base of the hill it is
moving horizontally at 24m/s. At the top of the hill it is also moving horizontally and then it goes over
the cliff. (a) How far from the foot of the cliff does the ball land? (b) How fast is it moving when it lands?
(a) is 1 point (b) is 2 points
Answers: 3
Physics, 21.06.2019 20:30
Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc
Answers: 3
Physics, 21.06.2019 22:10
Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.
Answers: 3
Physics, 22.06.2019 02:00
An object has a weight of 500 on earth what is the mass of this object
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Physics, 22.06.2019 02:30
Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes
Answers: 2
A solid uniform ball rolls without slipping up a hill that is 30m tall at its peak. At the base of t...
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