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An ultracentrifuge having a diameter of 17.3 cm produces an extremely large acceleration of 2.71E+5 m/s2. A 2.31 g sample is placed in the centrifuge.
What is the angular speed of the centrifuge?
An 18.00 g rifle bullet travelling 250 m/s buries itself in a 3.6 kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.
A 3.0 m long rigid beam with a mass of 120 kg is supported at each end. An 85 kg student stands 2.0 m from support 1. Explain by how much upward force does each support exert on the beam?
The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find out the final speed of puck A also Find out the final speed of puck B. m/s
What is the density of Kripton gas at standard temperature and pressure? The atomic mass of Kripton is 83.80 atomic mass unit
Obtain an expression for the velocity
An equilateral triangle has sides of lengthL. Charges of +Q,-2Q,and +3Q are placed at the vertices. Find the electric field midway between the two positive charges
A horizontal uniform bar of mass 2.9kg and length 3.0 m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached the distance 0.74 m from the other end.
If she were to use the mattress as a trampoline losing contact with it for part of each cycle. What minimum amplitude of oscillation does she need.
A space traveller whose mass is 115 kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no nearby planetary objects.
A bullet of mass 0.0025 kg moving at 581 m/s impacts a large fixed block of wood and travels 5.40 cm before coming to rest.
Particle A carries a charge of 5.0 uC, Particle B is 12.0cm, Find the magnitude and direction of the electric force on A due to B
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
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