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A 30g bullet strikes a .650kg block attached to a fixedhorizontal spring whose spring constant is 5.90x103N/mand sets it into vibration with an amplitude of 20.0cm. What was the speed of the bullet before impact if the two objects movetogether after impact?
A 3.6- cm-radius ball rolls down an inclined plane from rest at the top. The angular acceleration of the rolling ball about its center is 150 rad/s2, How long is the plane
It takes an elevator 3.4 minutes to raise a vehicle with a mass of 366 kg from the floor to a height of 7 meters. What size (power) motor (in watts) does it take to do the job
A car accelerates uniformly from rest to a speed of 64.7 km/h (18.0 m/s) in 10 s. Find the distance the car travels during this time
An aluminum wire having a cross-sectional area of 4.00 3 1026 m2 carries a current of 5.00 A. Find the drift speed of the electrons in the wire
A long, straight wire lying along the x-axis carries a current, i, flowing in the positive x-direction. A second long, straight wire lies along the y-axis and has a current i in the positive y-direction. What is the magnitude and the direction of the..
Find the period of a child's leg as it swings about the hip joint. Assume the leg is 0.39 m long and can be treated as a uniform rod, Estimate the child's walking speed
The interaction of a typical car’s tires with the road (i.e. the “grip” of the tires) can provide a “lateral” acceleration (i.e. perpendicular to the direction the car is moving) of approximately 0.8 g’s (Some sports cars can get close to 1.0 g).
1. a diamond has a mass of 56.6 g and the gold ring it is set in has a mass of 125.6 g. how many carbon atoms are there
The gauge pressure at the bottom of a reservoir is 7.0 times what it is at a depth of 1.3 m. How deep is the reservoir
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 1.6 cubic meters of sea water. What is the buoyant force acting on the object
a soccer ball is kicked with an initial horizontal speed of 5 m/s and an initial vertical speed of 3m/s. find the ball's verical speed at the apex of the flight
Kelli weighs 405 N, and she is sitting on the playground swing that hangs 0.43 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.00 m above the ground. suppose that air resistance is negligible.
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