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A solid ball and a hollow ball, each with a mass of 2.29 kg and radius 0.115 m, start from rest and roll down a ramp of length 2.77 m at an incline of 32.7°. An ice cube of the same mass slides without friction down the same ramp.
What is the speed of the ball at the bottom of the incline?
A current of constant density, J0, flows through a very long cylindrical conducting shell with inner radius a and outer radius b. What is the magnetic field in the regions rb
A cylinder, semicircular in cross-section, 10.0 m long and 5.00 m in radius is completely submerged in water. What is the buoyant force on the cylinder
A 12.0 kg watermelon is at rest upon a ramp that is raised to an angle of 27.0o. find the vertical component of the force of gravity
A Mercedes-Benz 300SL (m = 1750 kg) is parked on a road that rises 10° above the horizontal, What is the static frictional force that the ground exerts on the tires
The Earth is constantly being bombarded by cosmic rays, which consist mostly of protons. Assume that these protons are incident on the Earth's atmosphere from all directions at a rate of 1090. protons per square meter per second.
A uniform magnetic field B is perpendicular to the plane of a circular loop of radius r. Find the emf in the loop as a function of time
The human reaction at operating a stop watch
A force vector has a magnitude of 590 newtons and points at an angle 44o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A kayaker needs to paddle north across an 85 m wide harbor. The tide is going out, creating a tidal current that flows to the east at 1.7 m/s. The kayaker can paddle with the speed of 3.0 m/s.
you need a transformer that will draw 34w of power from a 220 v rms power line stepping the voltage down to 12v rms.a.
How many nitrogen molecules must strike a 1 cm2 surface each second to exert a pressure of 1 atm (Assume that the molecules are all moving at the same speed, at a temperature of 300K, and 45 degree angle to the wall).
Two turning forks oscillating coherently and in phase at 1200Hz are separated by 0.35m, Calculate the angles of minimum intensity
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