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A household pays $1850 per year for the supplied electricity. Assuming the rate of $0.11 per KWh and 10 hours of average consumption per day, find the average power of energy consumption.
In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward.
Two balloons (m = 0.028 kg) are separated by a distance of d = 0.9 m. They are released from rest and observed to have an acceleration of a = 1.9 m/s2 toward each other, How many electrons are respnsible for the charge
A golf ball of mass 0.045 kg is hit off the tee at a speed of 49 m/s. The golf club was in contact with the ball for 4.7 x 10-3 s. Find the magnitude of the impulse imparted to the golf ball
A skier of mass 70kg is pulled up a slope by a motor driven cable. the work required to pul him 60m up a 30 degrees slope, What horsepower must a motor have to perform this task
questionyou are part of a team to help design atrium of a new building. your boss manager of the project wants to
Suppose a block of mass 5 kg is resting on a horizontal surface and coefficient of static friction between block and surface is 0.2. What is the reaction on the block by the vertical wall
A narrow glass tube, open at one end, closed at the other, is 40cm long. Determine the frequency of the moving sound source
A rollercoaster car has a mass of 600 kg when fully loaded with passengers. what is the force of the track on the car at the top of the hill
A 38.0 mH inductor has a reactance of 1.90 k. What is the frequency of the ac current that passes through the inductor
You apply a constant force F? =(?68.0N)i^+(36.0N)j^ to a 400kg car as the car travels 47.0m in a direction, How much work does the force you apply do on the car
An engine compresses air down 1/16 its initial volume. The initial pressure is 7.7 X10^6 pa. Find the temperature after compression
A chair of weight 130 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.00 N directed at the angle of 35.0 degrees below the horizontal and the chair slides along the floor. Using Newton's law..
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