Physics, 09.07.2019 05:10 yangyang718
You and your friends are doing physics experiments on a frozen pond that serves as a frictionless, horizontal surface. sam, with mass 73.0 kg, is given a push and slides eastward. abigail, with mass 57.0 kg, is sent sliding northward. they collide, and after the collision sam is moving at 40.0^\circ north of east with a speed of 7.00 m/s and abigail is moving at 18.0^\circ south of east with a speed of 9.40 m/s. what was the speed of each person before the collision? a. sam's speed: b. abigail's speed: c. by how much did the total kinetic energy of the two people decrease during the collision?
Answers: 3
Physics, 21.06.2019 23:00
The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?
Answers: 1
Physics, 22.06.2019 04:40
How is the gravitational force related to the distance between two objects?
Answers: 1
Physics, 22.06.2019 08:30
A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?
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
You and your friends are doing physics experiments on a frozen pond that serves as a frictionless, h...
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