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Compute how much work must you do to push a 12 kilogram block of steel across a steel table (μk=0.6) at a steady speed of 1.3 m/s for 3.1 second?
Find your power output while doing so?
A thin steel beam 8.0 m long is suspended from a crane and is undergoing tensional oscillations. Two75 kg steelworkers leap onto opposite ends of the beam, as shown in Fig. 13.29. If the frequency of torsionaloscillations diminishes by 30%, what is t..
Two masses, m1 = 2.10 kg and m2 = 9.51 kg are on a horizontal frictionless surface and they are connected together with a rope. What is the acceleration of the whole system
a police car is traveling east at 39.5 ms along a straight road overtaking a car ahead of it moving east at 31.5 ms.
A solenoid 22.0 cm longand with a cross-sectional area of 0.500cm2 contains 415turns of wire and carries a current of 85.0 A. Calculate the magnetic field in the solenoid. Calculate the energy density in the magnetic field if thesolenoid is filled wi..
Find the force needed to pull a mass of 10 kilogram at a constant speed up a plane inclined at an angle of 30 degree with the horizontal if the coefficient of kinetic friction is μk= 0.15
q1. the driver of an 1800 kg car travelling on a horizontal road at 100 kmh suddenly applies the brakes. because of a
you perform a double-slit experiment in order to measure the wavelength of the new laser that you received for your
The cube in fig 22.32 has sides of length L=10.0cm. The electric field is uniform, has magnitude E=4.00*10^3 N/C, find the total electric flux through all faces of the cube
A stretched string fixed at each end has a mass of 49.0 g and a length of 8.60 m. The tension in the string is 49.0 N. What is the vibration frequency for this harmonic
A 4.9 kg cart is placed on a frictionless air track with an angle of 47.6o. A 24.2 kg mass is attached to the cart using a massless string draped over the end of a frictionless pulley at the top of the track. What is the expected acceleration of the ..
A Fabri-Perot interferometer is to be used to resolve the mode structure of a He-Ne laser operating at 632.8 nm. What is the coefficient of finesse of the instrument
A 55.0-kg ice skater is moving at 4.07 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. find the force exerted by the horizontal rope on her arms
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