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A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.130 rad/s2. After making 2510 revolutions, its angular speed is 148 rad/s.
(a) Determine the initial angular velocity of the turbine?
(b) Find how much time elapses while the turbine is speeding up?
A particle has an acceleration of 6.19 m/s^2 for 0.350 s. What was the particle's initial velocity
A skier with a mass of 63 kg starts from rest and skis down an icy slope that has a length of 50 m at an angle of 32 degrees with respect to the horizontal. Iillustrate what is the speed of the skier at the bottom of the slope?
We all sound like great singers in the shower, due to standing waves. What are the wavelengths of the first two overtones for this shower
A world-class sprinter accelerates to his maximum speed in 4.0s. He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire race
A spaceship of mass 2.20×106kg is cruising at a speed of 4.20×106m/s when the antimatter reactor fails, blowing the ship into three pieces
Blood from two different patients is to be tested by having it glow through a long straight tube of length 10 cm and internal diameter 6 mm. A pressure drop of 50 dynes/cm2 is imposed from one end of the tube
A coin is located 29.6 cm to the left of a converging lens (f = 21.6 cm). A second, identical lens is placed to the right of the first lens, Find the separation between the lenses
Part A-Power lines carry electricity at about 120,000 volts. If a power line were stepped down by a transformer to 120 volts, how many turns would there be on the secondary coil if there were 1000 turns on the primary? Show calculations. Part B-If..
A person who weighs 620 N stands at x = 5m, right on the end of a long horizontal diving board that weighs 350 N. The diving board is held up by two supports, one at its left end at x = 0, and one at the point x = 2.00 m.
A girl throws a rock horizontally with a speed of 12.0 m/s from a bridge. It falls 2.28 seconds before reaching the water below. How high is the bridge from the water? How far horizontally does the rock travel before striking the water.
Water starts moving at 10 meters per second at the top of the hill at a pressure of 1 atm. It moves down a pipe and exits at the bottom. The change in height is 5 meters. If the radius of the pipe at the top is 0.1 meters and the radius of the pipe a..
Suppose the coefficient of static friction between the road and the tires on a car is 0.60 and the car has no negative lift. What speed will put the car on the verge of sliding
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