Physics, 04.11.2019 21:31 ashhleyjohnson
The automobile has a weight of 2700 lb and is traveling forward at 4 ft> s when it crashes into the wall. if the impact occurs in 0.06 s, determine the average impulsive force acting on the car. assume the brakes are not applied. if the coefficient of kinetic friction between the wheels and the pavement is μk = 0.3, calculate the impulsive force on the wall if the brakes were applied during the crash. the brakes are applied to all four wheels so that all the wheels slip.
Answers: 3
Physics, 22.06.2019 10:30, gyexisromero10
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
Physics, 23.06.2019 08:00, kimmosley80
Agust of wind pushes a beach ball with a force of 9 newtons. the ball rolls 10 meters in 3 seconds. what is the power of the wind? 900 w 90 w 30 w 3 w
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Physics, 23.06.2019 16:00, lilroach4
In the absence of friction, gravity, and all other external forces, what kind of speed will an object display if it travels from the bottom to the top of an inclined plane? a. constant speed b. increasing speed c. decreasing speed d. speed increases and then decreases e. speed decreases and then increases
Answers: 1
The automobile has a weight of 2700 lb and is traveling forward at 4 ft> s when it crashes into t...
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