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A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/minute. When switched off, it rotates through 48.0 revolutions before coming to rest. Obtain what the constant angular acceleration of centrifuge?
A hoop and a disk, both of 0.46- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.2 m high and 7.0 m long. What is the speed of the hoop
a 7.80-g bullet moving at 480 ms penetrates a tree trunk to a depth of 6.5 cm.a use work and energy considerations to
What amplitude of simple harmonic motion of the spring-blocks system puts the smaller block on the verge of slipping over the larger block.
Ships A and B leave port together. For the next two hours, ship A travels at 40.0mph in a direction 20.0 ?west of north while the ship B travels 45.0, What is the speed of ship A as seen by ship B
A 68 kg diver steps off a 12 m tower and drops from rest straight down intothe water. If he comes to rest 4.0 mbeneath the surface, determine the average resistance force exertedon him by the water.
An object with mass 3.7kg is executing simple harmonic motion, attached to a spring with spring constant 270N/m, find the maximum speed attained by the object
A uniform rod rotates in a horizontal planeabout a vertical axis through one end. Calculate the angular momentum of the rod about that axis
A 5.0 ? resistor is connected in series with a 10.0 ?resistor. This combination is then connected in parallel witha 7.5 ? resistor. The three resistor network is then connectedin series with a 15 ? resistor.
you have designed a rocket to be used to sample the local atmosphere for pollution. it is fired vertically with a
A move theater projector produces a 3.0 m wide image of a 2.5 cm wide picture on a screen that is 18 m distant. The focal length of the projection lens must be about?
A catcher catches a 145 g baseball traveling horizontally at 38.0 m/s. How large an impulse does the ball give to the catcher
is the buoyant force on an object that is attached to a light sting and submerged completely in water the same as the
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