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A gun is fired vertically into a 1.40 kg block of wood at rest directly above it. If the bullet has a mass of 21.0 g and a speed of 210 m/s, how high will the block rise into the air after the bullet becomes embedded in it?
A 2.0 kg particle P has a position vector of magnitude 3.0 m and angle ?1 = 45° and a velocity vector of magnitude 5.5 m/s and angle ?2 = 30°. The force on the particle has magnitude 4.7 N and angle ? 3 = 30°. What is the magnitude of the torque on t..
A certain waffle iron is rated at 0.66 kW when connected to a 120-V source. What current does the waffle iron carry
An engine puts out 5 kW of power at an efficiency of 35.0%. If 8850 J of energy is expelled each cycle find the energy absorbed in each cycle
The wavelength of the laser beam used in a compact disc player is 549 nm. Estimate the spacing between the slits of the grating
A cable is lifting a construction worker and a crate, as the drawing shows. What is the tension in the cable below the worker
A 51-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. What is the magnitude of the kinetic frictional force
The suspension system of your 1200 kg car has a natural oscillation frequency of 2.00 Hz without functioning shock absorbers. The shock absorbers provide critical damping to the system. Along a worn section of concrete highway you notice concrete joi..
A 0.840-kg block oscillates on the end of a spring whose spring constant is k= 42.0 N/m . The mass moves in a fluid which offers a resistive force F=-bv, where b = 0.640 N*s/m. What is the fractional decrease in amplitude per cycle?
An inductor has the form of a coil with 1750 turns and a diameter of 1.3 mm. The inductor is placed in a magnetic field perpendicular to the plane of the coil and increasing at a rate of0.31 T/s.
q1. a juggler performs in a room whose ceiling is a height 3.0 m above the level of his hands. he throws a ball upward
A shear force of 4 x105 N is applied to an aluminum bar of length L = 28 cm, width w = 5 cm, and height h = 1.2 cm, What is the shear deformation
A physical pendulum is made by drilling a hole through a uniform wooden disk of radius R a distance (alpha)*R from the disk's center. What must alpha be to miniumze the disk's period of oscillation
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