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An arrow, starting from rest, leaves the bow with a speed of25 m/s. If the average force exerted on the arrow by the bowwere tripled, all else remaining the same, with what speed wouldthe arrow leave the bow?
A ball is thrown directly downward with an initial speed of 8.60 m/s, After what time interval does it strike the ground
The femur is a bone in the leg whose minimum cross-sectional area is about 4.1 x 10-4 m2. Find the maximum stress that this bone can withstand
A system gains 3400 J of heat at a constant pressure of 1.36 × 105 Pa, What is the change in the volume of the system
A flat coil enclosing an area of 0.07 m2 is rotating at 56 rev/s, with its axis of rotation perpendicular to a 0.17 T magnetic field. If there are 998 turns on the coil, what is the maximum voltage induced in the coil?
High-speed stroboscopic photographs show that the head of a 220-g golf club is traveling at 42 m/s, Find the speed of the golf ball just after impact
Consider two closely spaced and oppositely charged parallel metal plates. The plates are square with sides of length L and carry charges Q and -Q on their facing surfaces. What is the magnitude of the electric field in the region between the plate..
A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended
A longitudinal standing wave can be created in a long, thin aluminum rod by stroking the rod with very dry fingers. This is often done as a physics demonstration, creating a high-pitched, very annoying whine. From a wave perspective, the standing wav..
Starting from rest, a 92-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 840 N, How far did he slide down the pole
A block of mass m starts from rest at the top of a ramp of vertical height h . The block slides down frictionless ramp and reaches a speed v at the bottom . if the same bock were to reach a speed 3v at the bottom , it would need to slide down a fr..
A 30.0-g goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 3.50*10^-2m and period 1.50s. What is the maximum acceleration of the finch
A 5kg object is initally at rest. The object is acted on by a 9N force toward the east for 3 seconds. How far has the object moved during this 7 second interval
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