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A uniform rectangular bookcase of height 1.63 m and width 1.03 m is to be pushed at a constant velocity across a level floor. The bookcase is pushed horizontally at its top edge, at the distance H above the floor. What is the maximum value the coefficient of kinetic friction between the bookcase and the floor can have if the bookcase is not to tip over while being pushed?
A disk of radius has a total charge uniformly distributed over its surface. The disk has negligible thickness and lies in the xy plane. What is the electric potential V (z) on z axis as a function of z, for z>0.
An atom of U238 spontaneously decays into two components. One is a small fragment that is ejected with a speed of 1.50x107 m/s, what are the masses of the fission products
A 563 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 2.9 meters
How strong is the electric field between the plates of a 0.70 microF air-gap capacitor if they are 3.0mm apart and each has a charge of 77 microcoloumbs
Two sleds are hooked together in tandem . The front sled is is twice as massive as the rear sled. Determine the ratio of the magnitude of the two forces.
A 12.0-V battery produces 205mA when it's across a 47.5? load, Find the potential difference across the battery's terminals
What is the range of frequency of the light emitted by the hydrogen atom
For a spring-mass oscillator, if you triple the mass but keep the stiffness the same, what numerical factor does the period change? That is, if an original period was T and the new period is bT, what is b? It is useful to write out the expression ..
Four identical springs with k = 65.3kN/m support a car, Find the maximum weight for the car if the springs should be compressed no more than 3.9cm when the car is at rest
Nitrogen in a horizontal piston-cylinder assembly expands from an initial volume of 0.10 m3 to a final volume of 0.5 m3 as the gas is heated for 5 minutes by an electrical resistance heater consuming 1 kW of electric power
A dragster starts from rest and accelerates down a track. Each tire has a radius of 0.320 m and rolls without slipping. determine the linear speed of the dragster
A quarter circle of electric charge with a radius of 2.5 m has a uniform charge density of +0.7x10^-6 C/m. At the center of the circle
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