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A 100kg elevator starts from rest. It moves upward for 4s with constant acceleration until it reaches its crusing speed of 2 m/s.
(a) What is the average power of the elevator during this time interval?
(b) What is the power of the elevator motor at instant time 4s?
Two blocks of weights 77.0 and 114.0 N are connected by as massless string and slide down an inclined plane making an angle of 45.0 deg, find the magnitude of the heavier block's acceleration
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a block with a mass of 2.50kg is resting on a ramp. find the max static friction force that acts on the block.
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A car is parked on a steep incline, making an angle of 37.0° below the horizontal and overlooking the ocean, when its brakes fail and it begins to roll. Starting from rest at t = 0, the car rolls down the incline with a constant acceleration of 3...
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Two gases are in two separate chambers. The gas in one of the chambers has a temperature of 75 degrees Celsius. Which of the gases has more kinetic energy
A projectile is fired with an initial speed of 164 m/s. Find the angle of projection such that the maximum height of the projectile is equal to 0.5 times its horizontal range
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