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A 5.40 g bullet moving at 803 m/s strikes a 750 g woodenblock at rest on a frictionless surface. The bullet emerges,traveling in the same direction with its speed reduced to 490m/s.
(a) What is the resulting speed of the block?
(b) What is the speed of the bullet-block center of mass?
A car of mass 1290 kg rests on a hydraulic lift with a piston of radius 0.22 m that is connected to a second piston of radius 0.027 m. what is the force at the second piston
An ideal spring has the spring constant k = 428 N/m. find the distance this spring must be stretched from its equilibrium position for 28 J of work to be done.
An electron with an initial speed of 4.80×10^5 m/s is brought to rest by an electric field. What was the potential difference that stopped the electron?
A 10-kg body is force against a horizontal elastic springcompressing it an amount of 0.5 meter. When the body was released,it moves on a horizontal distance of 3 meters before coming torest. The force constant of the spring is 50 N/m.
Young David who slew Goliath experimented with slings beforetackling the giant. He found that he could revolve a sling oflength 0.750 m at the rate of7.00 rev/s. What is the speed of the stone for each rate of rotation
Find the energy, in joules, of one quantum of energy for an atomic oscillator in a block of aluminium.
assume that a particular persons skin is found to have a resistance of 1 x 105o when dry and 1400o when wet. how much
a person leaning over a 126 m deep well accidentally drops a siren emitting sound of frequency 2450 hz. Just before this siren hits the bottom of the well, What beat frequency does this person perceive
Both surfaces of a double convex lens have radii of 30.0 cm. what is the index of refraction of the lens material
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. how fast is the student going at the bottom of the slide
two spherical objects are separated by a distance that is 1.80 x 10-3 m. the objects are initially electrically neutral
A small 0.300-kg object moves on a frictionless horizontal table in a circular path of radius 2.40 m. what is the radius of the smallest possible circle on which the object can move
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