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A 0.950kg block is attached to a spring with spring constant 16N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 36cm/s .
1. What is the amplitude of the subsequent oscillations?.........cm
2. What is the block's speed at the point where x= 0.20 A?..........cm/s
A certain medical machine emits x-rays with a minimum wavelength of 0.025 nm. One day, the machine has an electrical problem and the voltage applied to the x-ray tube decreases to 80 percent of its normal value. Now what is the minimum x-ray wavel..
A 1.50 kg block of wood sits at the edge of a table, 0.782m above the floor. A 0.0105 kg bullet moving horizontally with a speed of 770m/s embeds itself within the block. What horizontal distance does the block cover before hitting the ground.
The electric field points radially outward at all points within the sphere (and outside too, for that matter). What is the strength of the electric field at a distance r from the center, inside sphere.
Calculate the horizontal force that must be applied to create an acceleratrion of 1.8g for a 1.2kg puck on a horizontal friction-free air table.
A 64 woman stands on a very light, rigid board that rests on the bathroom scale at each end. 1.5 m left of her and 2.0m total. what is the reading on each of the scales.
Coin is placed 14.0 from the axis of the rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on turntable until a rate of 40.0 (revolutions per minute) is reached, at that point the coin s..
A certain car battery with a 14.0 V emf has an initial charge of 195 A•h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how long in hours can it deliver energy at the rate of 184 W.
A uniform steel beam has a mass of 1640 kg. On it is resting half of an identical beam. What is the vertical support force at each end.
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. (a) What is the work done by the field on the electron? J (b) What is the change in..
What is the coefficient of static friction among the coin and the turntable? Express your answer using two significant figures.
At which wavelengths (or energies) will you observe lines in infrared absorption (a phonon absorbs a photon) and raman scattering spectra? The temperature is 300 k. raman scattering is excited with a cw Argon laser at 514.5 nm.
A 3.00-kg object is fastened to a light spring, with the intervening cord passing over a pulley. The pulley is frictionless, and its inertia may be neglected.
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