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A 4.00kg block is suspended from a spring withk=560N/m. A50.0g bullet is fired straight up into the block from directly below with a speed of168m/s and becomes embedded in the block.
(a) Find the amplitude of the resulting simple harmonic motion.
m
(b) What percentage of the original kinetic energy of the bullet is transfered to mechanical energy of the oscillator?
%
Iced tea is made by adding ice to 2.4 kg of hot tea, initially at 70?C. How many kg of ice, initially at 0?C, are required to bring the mixture to 10?C? (Lf = 3.33×105 J/kg, cw = 4,186 J/kg•? C)
A boy 11.0m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. How far from the tree will the dog catch the ball
How much work is done by a person lifting a 2.0-kg object from the bottom of a well at a constant speed of 2.0 m/s for 5.0 s
A 72 person stands on a uniform ladder 4.5 long, that weighs 75. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force.
An ac series circuit has an impedance of 196 ? , and the phase angle between the current and the voltage of the generator is ? = -72°. The circuit contains a resistor and either a capacitor or an inductor
Find the magnetic flux through a circular loop 4.6 cm in diameter oriented with the loop normal at 58 degrees to a uniform 80 mT magnetic field
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 16.1 s. The acceleration of gravity is 9.8 m/s2 .
an 8.00kg point mass and a 14.5kg point mass are held in place 50.0 cm apart. Find the magnitude of the acceleration of the particle
A wooden shelter has walls constructed of wooden planks 1.00 cm thick. find the rate of energy loss through a wall that has dimensions 1.65 m by 2.40 m
A Young's double-slit experiment is performed using light that has a wavelength of 638 nm, Calculate the angle that locates the first-order bright fringes on the screen
A uniform plank of length 5.8 m and weight 202 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the Illustrataing). To what distance x can a person who weighs 441 N walk on the overhanging part of t..
A particle has a charge of +1.7 %u03BCC and moves from point A to point B, a distance of 0.29 m. Find the magnitude of the electric force that acts on the particle
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