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A disk of radius 10 cm, initially at rest, begins rotating about its axis with a constant angular acceleration of 8.2 rad/s2. What are the following values at t = 4.0 s?
(a) the angular velocity of the disk in rad/s
(b) the tangential acceleration at and the centripetal acceleration ac of a point at the edge of the disk at = ac = m/s2
A point charge is a = 1.5 m below the end of a continuously charged rod with charge Q = 5 ?C, Write an expression for the differential element of the y component of the Electric Field at P in terms of the charge density
Suppose manufactures increase in size of compact disks. By what factor will the moment of inertia increase
What is the height of the power line and the initial speed of the ball?
A submarine dives 90.0 m at an angle of 8.0° below the horizontal. What are the horizontal and vertical components of submarine's displacement? (Imagine that upward and the direction of the submarine's horizontal motion is positive.)
Two infinite, parallel, uniformly charged plates with charge densities +sigma and +3sigma are separated by a distance L, what is the potential of the plate on the left
An expandable cylinder has its top connected to a spring with force constant 2 x10^3 N/m. The cylinder is filled with 6 L of gas with the spring relaxed at a pressure of 1.0 atm and a temperature of 20°C.
A ball thrown upward returns to the same level after 4s in the air. How long would that ball take to reach the same level
A snowmobile climbs a hill at velocity v-up. The slope of the hill is a 2 ft rise for every 70 ft of distance. The resistive force of the snow is equal to 4.12 percent of the weight of the snowmobile. How fast will the snowmobile move downhill, assum..
A 7.50-nC charge is located 1.80m from a 4.20-nC charge, find the magnitude of the electrostatic force that one particle exerts on the other
Estimate the rms electric field in the sunlight that hits Saturn, knowing that the Earth receives about 1350 W/m2
A light ray in air is incident on a transparent material whose index of refraction is n, Evaluate your expression for light incident on glass
A parallel-plate capacitor has plates of area A and separation d and is charged to a potential difference, find The inital and final stored energy
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