Acar is parked on a cliff overlooking the ocean on an incline that makes an angle of 23.1 ◦ below the horizontal. the negligent driver leaves the car in neutral, and the emergency brakes are defective. the car rolls from rest down the incline with a constant acceleration of 2.52 m/s 2 and travels 37.5 m to the edge of the cliff. the cliff is 21.1 m above the ocean. find the car’s position relative to the base of the cliff when the car lands in the ocean. the acceleration due to gravity is 9.8 m/s 2 . answer in units of m.
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Physics, 22.06.2019 10:00
What is the temperature in degrees celsius of a substance with a tempature of 49k
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Physics, 22.06.2019 16:50
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
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Physics, 22.06.2019 20:00
Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?
Answers: 1
Physics, 22.06.2019 22:30
Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.
Answers: 1
Acar is parked on a cliff overlooking the ocean on an incline that makes an angle of 23.1 ◦ below th...
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