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A bullet of massm = 15 g and velocity 260 m/s is shot into a block of wood that is firmly attached to the ground. The bullet comes to rest in the wood at a depth of 8.0 cm.
What was the acceleration of the bullet? (Take the initial velocity of the bullet to be in the positive direction.)
A 2.00kg block is pushed against a 400N/m spring, compressing it 22.0 cm. When the block is released, find the speed of the block just after leaving the spring
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another and toward an observer stationed between them. What is the speed of the second train
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
A tank with vertical walls, 2m wide and 2m long and 2.5 m high, is filled with 4800 litres of water (density 1000 kg/m3) and 3200 litres of light oil (density 900 kg/m3). compute the magnitude and location of the resultant force on each of the ver..
How much charge is applied to each of the cylinders.
An aluminum bar has a length of 1.8 m and a rectangular cross section with sides of 3.4 mm and 7.0 mm. What is the strain for this value of the stretch
At its highest temperature, a space heater has a resistance of 35.5 Ω when it is plugged into a wall outlet supplying a peak voltage of 162.6 V sinusoidally at 60 Hz
The string will break if its tension exceeds 50-{rm N}. The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. Find out the maximum speed the stone can attain without breaking the string.
A 0.45 caliber bullet (m = 10.7 g) is fired into a large block of wood (M = 0.750 kg) so that the bullet becomes lodged in the block. What is the speed of the block after the collision
If an organ pipe, 2 ft long and with one end closed and one end open, how long is the second organ pipe
The weight of passengers on a roller coaster increases by 60% as the car goes through a dip with a 38m radius of curvature
You are standing 4.5m from a convex security mirror in a store. You estimate the height of your image to be half of your actual height. Estimate the radius of curvature of the mirror
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