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A 10.8 gram bullet is fired horizontally into a 100 gram wooden block initially at rest on a horizontal surface. After impact, the block slides 7.5 meter before coming to rest. If the coefficient of kinetic friction between surface and block is 0.650, obtain what the speed of the bullet before impact? m/s
An inductor of 491 mH with a resistance of 47 ? is connected to a power supply with a maximum voltage of 135 V and a frequency of 77 Hz. Find the power loss in the inductor
A catcher catches a 145{\rm g} baseball traveling horizontally at 32.0{\rm m}/{\rm s}. what average force did the ball exert on the catcher
What is the highest compression of the spring for a perfectly inelastic impact.
It is fairly easy to strip the two electrons off a helium atom, leaving a bare nucleus of two neutrons and two protons. What is the necessary voltage difference
A telescope has a two ft mirror. How far apart in angle can the instrument distinguish two individual stars for blue (420 nm) light? How about for red (650 nm) light? The Very Large Array in New Mexico consists of a large number of radio telescopes a..
A catapult launches a rock at a 30 degree angle with respect to thehorizontal. Find the maximum height attained if the speed of therock at its highest point is 30 m/s
Students in a physics lab are to determine the specific heat of copper experimentally. They place 0.150 kg of copper shot into boiling water, what is the specific heat of copper
The two surfaces of a plastic converging lens have equal radii of curvature of 25.0cm, Calculate the index of refraction of the plastic
A proton with a speed of 2.0 x 106 m/s is shot into aregion between two plates that are separated by a distance of 0.15m. As the drawing shows, a magnetic field exists between the plates, and it is perpendicular to the velocity of the proton.
A nuclear power plant operates at 65% of its maximum theoretical (Carnot) efficiency between temperatures of 580oC and 350oC. find how much exhaust heat is discharged per hour
Camera lenses are described in terms of their focal length. A 50 mm lens has a focal length of 50 mm, Locate the position of the image
A flat curve on a highway has a radius of 290 meter. A car rounds the curve at a speed of 22.0 m/s. Find the minimum coefficient of friction that will prevent sliding
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