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A centrifuge in a medical laboratory rotates at a rotational speed of 3600rev/min. when switched off, it rotates 50.0 times at a constant angular acceleration before coming to rest.
A) determine the initial angular speed of the centrifugeB) determine the angle(in radians) through which the centrifuge rotates before coming to restC) calculate the constant angular acceleration of the centrifugeD) calculate the time necessary for the centrifuge to come to rest
A glass window 0.45cm thick measures 90cm by 35cm . If the inside and outside temperatures differ by 18?, By what factor is the rate of heat transfer reduced
A 1.5-H inductor is connected in series with a 200-Ω resistor through a 15-V dc power supply and a switch, what is the maximum energy stored by the inductor
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 446 N and F2 = 399 N. what is the resultant of these two magnitudes
The masses and coordinates of three spheres are as follows: 14 kg, x = 1.25 m, y = 1.25 m; 38 kg, x = -2.50 m, y = -2.00 m; 62 kg, x = 0.00 m, y= -0.50 m. What is the magnitude of the gravitational force
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. what is the magnitude of the average current in this region
A wheeled cart with a mass of 0.50 kg is rolling along a horizontal track at a constant velocity of 2.0 m/s, What is the maximum compression of the spring
a man has to install an instrument on top of the mast of his sailboat. He uses a boson's chair to hoist himself up. With what acceleration does the man move up
A prescription for a corrective lens calls for +1.50D. The lensmaker grinds the lens from a "blank" with n = 1.56, What should be the radius of curvature of the other surface
A converging lens with a focal length of 89.0cm forms an image of a 3.25cm -tall real object that is to the left of the lens. Where are the object and image located in relation to the lens
Hold a rubber band between your right and left hands. Pull with your left hand. Does your right hand experience a force
A parallel-plate capacitor with area 0.100 m2 and plate separation of 4.00 mm is connected to a 21.00 V battery. Find the magnitude of the charge density on each plate
At t = 0, the current through a 65.0 mH inductor is 52.0 mA and is increasing at the rate of 100 mA/s. What is the initial energy stored in the inductor
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