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A turntable must spin at 33.6 rpm (3.52 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 1.0 revolutions, starting from rest? The turntable is a uniform disk of diameter 30.5 cm and mass 0.21 kg.
What is the normal force that the incline exerts on the block. find the acceleration of the block.
The armature of an ac generator is a rectangular coil, 2.0 cm by 6.0 cm with 80 turns. at what angular speed is the armature rotating
A racecar travelling at a constant speed turns in a circle with a radius of 10 m. what is the racecar's speed
In recent years, a number of nearby stars have been found to possess planets. Find the mass of the star
A 30.0 g goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 0.0489 m, What is the maximum speed of the goldfinch
Consider the system with m1 = 24kg, m2 = 14.60kg, R = 0.1400m, and the mass of the pulley M = 5.0kg. Object m2 is resting on the floor, and object m1 is 4.600m above the floor when it is released from rest. The pulley axis is frictionless. The cor..
Given a binomial distribution with n = 20 and p = 0.76, would the normal distribution provide a reasonable approximation? Why or why not and find the area under the standard normal curve for the following:
A thin uniform 15 kg post, 1.75 m long is held vertically using a cable and is attached to a 5kg mass and a pivot at its bottom end. Find the angular acceleration of the post about the pivot just after the cable breaks
If the coefficient of kinetic friction between tires and dry pavement is 0.82, what is the shortest distance in which you can stop an automobile by locking the brakes when traveling at 26.6 m/s
An object is placed 107.6 mm to the left of a diverging lens. Where is the image located when the lens has a focal point of 58.8 mm
An aluminum rod is16.5cm long at 20°C and has a mass of 350 g. If14000J of energy is added to the rod by heat, what is the change in length of the rod
A skier of mass 120 kg starts from rest at the top of the ski slope of height 100 m, find the skier's speed when he reaches the bottom of the slope
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