A60.0-kg and a 90.0-kg skydiver jump from an airplane at an altitude of 6.00×103m , both falling in a headfirst position. make some assumption on their frontal areas and calculate their terminal velocities. how long will it take for each skydiver to reach the ground (assuming the time to reach terminal velocity is small)? assume all values are accurate to three significant digits.
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What is meant by the statement" the melting poin of glycerine is 13 degree celsius
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Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.
Answers: 1
Physics, 22.06.2019 18:50
Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle can be assumed at 30 deg
Answers: 2
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