Physics, 26.09.2019 20:10 stsfrost9328
Agirl is sledding down a slope that is inclined at 30º with respect to the horizontal. the wind is aiding the motion by providing a steady force of 161 n that is parallel to the motion of the sled. the combined mass of the girl and the sled is 87.7 kg, and the coefficient of kinetic friction between the snow and the runners of the sled is 0.151. how much time is required for the sled to travel down a 271-m slope, starting from rest?
Answers: 3
Physics, 22.06.2019 05:30
If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?
Answers: 1
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)
Answers: 3
Physics, 22.06.2019 12:20
The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.
Answers: 2
Agirl is sledding down a slope that is inclined at 30º with respect to the horizontal. the wind is a...
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