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A block of mass 3.0kg hangs from one end of a cord, while the other end is wrapped around a uniform wheel of radius 30cm and moment of inertia 0.80kgm2. The wheel is free to rotate about a frictionless horizontal axis through the center. The system starts from rest and the cord unravels with no slippage.
(A) Find the linear acceleration of the block.
(B) Find the angular velocity of the wheel after the block has dropped through a distance of 1.50m.
To develop muscle tone, a woman lifts a 4.00 kg mass held in her hand. She uses her biceps muscle to flex the lower arm through an angle of 60.0°. How much work does she do
What is the potential energy of an electron that is 59.0 cm from a charge of 33.5 nC, How much work is required to move the electron very far from the charge
A capacitor consists of a set of two parallel plates of area A separated by a distance d. find the magnitude of the charge on the plates
A 90 kg gentleman standing on slippery grass is pulled by his two rather unruly children.Overlooking friction, compute Pop's resulting acceleration
Two long, straight, parallel wires of length 4.1 m carry parallel currents of 3.2 A and 1.1 A. What is the magnitude of the force between the two wires
A particle has a charge of -3.00 nC. A.) Find the magnitude and direction of the electric field due to this particle at a point 0.250 directly above it. B.) Upward or downward? C.) At what distance from the particle does its electric field have a ..
hree identical small Styrofoam balls (m = 1.81g) are suspended from a fixed point by three nonconducting threads, What is the common charge q carried by each ball
A uniform plank of length 5.40 m and weight 217 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 417 N walk on the overhanging part of the plank before it immedia..
Maximum mass of exactly 1 metric ton?
q1. on the wheel of fortune game show a solid wheel of radius 6.7 m and mass 10 kg is given an initial counter
An astronaut is stuck in space with no fuel for his thrusters. He is 250 m away from his ship and only has a heavy wrench in his possession. How long does it take the astronaut to reach his ship
A compound microscope has an objective lens of focal length 10.3 mm with an eyepiece of focal length 15.0 mm, What is the overall magnification of this microscope
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