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A 25 g rifle bullet traveling 270 m/s buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
A 56.0 kg person jumps from rest off the 9.0 m high tower straight down into the water. Neglect air resistance throughout the descent. She comes to rest 3.40 m under the surface of the water. Find out the magnitude of the average force that the water..
A box slides down a 25° ramp with an acceleration of 1.070m/s2. Resolve the coefficient of kinetic friction between box and ramp.
Suppose you are a researcher doing such an experiment in a location where the earth's field is 50 ?T at a 60 ?angle below horizontal. What is the proper orientation of the coil
an airplane flying at a constant speed of 160 m/s pulls out of a dive in a circular arc. the 80 kg pilot presses down on his seat with a force of 3000 N, What is the radius of the arc
Three identical metal spheres of qA=+3.0C qB=-5.0C qC=+6.0C. What is the final charge on each one
calculate the speed of sound and uncertainty of the speed of sound for a lab report. The equation for the speed of sound is V=4LS
To charged dust particles exert a force of 3.2 * 10-2N on each other. What will be the force if they are moved so they are only 1/8 as far apart?
An electric car accelerates for 8.0 s by drawing energy from its 345-V battery pack. During this time, Find the minimum horsepower rating of the car
I lift a 3 kg rock up and place it on a table 2 meters above the ground. How much gravitational potential energy does the rock have
What must the constant acceleration of the car be after the brakes are applied so that the car would come to rest at the stop sign.
A barbell spins around a pivot at its center at A. The barbell consists of two small balls, each with mass 400 grams (0.4 kg), at ends of a very low mass rod of length d = .6 m. The barbell spins clockwise with angular speed 20 radians/s.
A football is thrown with an initial upward velocity component of 15.0 and a horizontal velocity component of 17.5 . How high does it get above the ground? How far has the football traveled horizontally from its original position?
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