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A 7.75- g bullet from a 9-mm pistol has a velocity of 397.0 m/s. It strikes the 0.785- kg block of a ballistic pendulum and passes completely through the block. If the block rises through a distance h = 10.15 cm, what was the velocity of the bullet as it emerged from the block?
The loaded cab of an elevator has a mass of 3.7 x 10^3 kg and moves 228 m up the shaft in 21 s at constant speed. At what average rate does the force from the cable do work on the cab.
A robot probe drops a camera off the rim of a 388 m high cliff on Mars, where the free-fall
A charge of -3.2 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.099 m. The charges on the circle are -3.95 µC at the position due north and +5.45 µC at the position du..
A frictionless pulley has the shape of a uniform solid disk of mass 2.80kg and radius 10 cm. What percent of the total kinetic energy does the pulley have
At time 0 a grinding wheel has an angular velocity of 30. It has a constant angular acceleration of 35 until a circuit breaker trips at time = 2.20. From then on, wheel turns through an angle of 428 as it coasts to a stop at a constant angular dec..
A horizontal wire of length 0.57 m, carrying a current of 8.0 A, is placed in a uniform external magnetic field. When the wire is horizontal, estimate the magnitude of the external magnetic field
The moment of inertia of a uniform ring is I (r) = M (r) * R^2 (r), where M (r) and R (r) denote the mass and radius of the ring. Compute the moment of inertia of this disk
A 70 kg meteorite buries itself 5.5m into soft mud. The force between meteorite and the mud is given by F(x) = (680 N/m^3)x^3, where x is the depth in the mud. What was the speed of the meteorite when it firstly impacted the mud.
A uniform rod of mass m and length l is kept vertical with the lower end clamped. What wil be the linear speed of the free end at this instant
What speed would Michelson have computed for Earth's motion through the ether had the experiment seen a shift of one fringe
Jamal pulls a 200N sled up a 28° slope at a constant speed by a force of 100N. Near the top of the hill he releases the sled, With what acceleration does the sled go down the slope
Suppose the work function for a particular metal is 5.09 eV. Find the cut-off frequency for this metal
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