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A centrifuge is rotating at 10,000 revolutions/minute. It is brought to rest in 4.00 seconds under a constant acceleration.
(a) Determine the initial angular velocity of the centrifuge in rad/sec.
(b) Determine the angular acceleration ?.
(c) If the radius of the centrifuge is 8cm, determine the distance that a point on the rim travels during the deceleration time.
Each plate of a parallel-plate capacitor is a square of side 3.89 cm and the plates are separated by 0.539 mm. Find the electric field strength inside the capacitor
A 150 g Copper bowl contains 220 g of water, at an initial temperature T1. A 300 g Copper cylinder at 7000 C is dropped into the water, How much energy is transferred to the bowl
A scaffold of mass 44 kg and length 6.0 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
A saw blade has a mass of 0.5 kg and a radius of 10 cm and is rotating at 300 rpm. What frictional torque acts on the saw blade as it slows to a stop
A woman stands on a scale in a moving elevator. Her mass is 60.0 kg, and the combined mass of the elevator and scale is an additional 802 kg, What does the scale read (in N) during the acceleration
Suppose you wish to make a solenoid whose self-inductance is 1.5 mH, The inductor is to have a cross-sectional area of 1.7 x 10-3 m2 and a length of 0.046 m
The average density of the planet Pluto is 2357 kg/m3. The acceleration of gravity on its surface is 0.76 m/s2. Calculate the average radius of Pluto
A diffraction grating with 395 lines/mm is 1.00 m in front of a screen. What is the wavelength of light whose first-order maxima will be 16.9 cm from the central maximum on the screen.
A 27.4 kg runaway grocery cart runs into a spring with spring constant 387 N/m and compresses it by 75.5 cm. What was the speed of the cart just before it hit the spring
converging lens with a focal length of 6.00cm forms an image of a 5.00mm -tall real object that is to the left of the lens. where are the object images located
The force of the wind on the sails of a sailboat is 300 N north. The water exerts a force of 210 N east. If the boat (including crew) has a mass of 310 kg, illustrate what are the magnitude and direction of its acceleration?
The nucleus of an atom has a radius of about 7.9Ã-10-15 m. The electron is normally at a distance of about 3.4Ã-10-11 m from the nucleus, Find the volume of the nucleus
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