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A tablecloth of length l rests on top of a table also oflength l. There is a bowl on the tablecloth at l/2. Assumethat the coefficient of friction between the bowl and thetablecloth is μ1 and the coefficient of friction between the bowl and the table is μ2. At whatconstant speed v must the tablecloth be pulled suchthat the bowl slides off the tablecloth, slides on the table, andcomes to rest at the very edge of the table?
Take element Z = 39 from the periodic table. Ionize it 38 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
A 60.0 kg woman stands at the rim of a horizontal turntablehaving a moment of inertia of 500 kgm^2 and a radius of 2.00m. How much work does the woman do to set herself and theturntable into motion
A mini-fridge needs to maintain a temperature of 277 K. The air outside the mini-fridge has a temperature of 301 K. What is the coefficient of performance of this mini-fridge
A force of 21.0 N is required to start a 2.8 kg box moving across a horizontal concrete floor. What is the coefficient of static friction between the box and the floor
An inductor is connected to a source of sinusoidally varying voltage with constant amplitude and a frequency of 50.0 Hz. what will be the new rms current
on a frozen pond a 10kg sled is given a kick that imparts to it an intial speed of v0 2.0ms. the coefficient of the
an elephant has legs that stretch 2.3 from its shoulders to the ground. how much time is required for one leg to swing
Two runners of mass 70 kg and 60 kg,respectively, have a total linear momentum of 350 kg*m/s. The heavier runner is running at 2.0m/s. Examine the possible velocitis of the lighter runner.
What fraction of the initial kinetic energy was transferred
A string under a tension of 49.0 N is used to whirl a rock in a horizontal circle of radius 2.40 m at a speed of 20.8 m/s on a frictionless surface, What is the breaking strength, in newtons, of the string
A 1,500 kg jeep is parked on a 30 degree slope, facing uphill. Find the normal force exerted by the road on the front wheels and on the rear wheels
A long, narrow steel rod of length 2.5000 m at 25 C is oscillating as a pendulum about a horizontal axis through one end. what will be the fractional change in its period
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