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A 26 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. If the coefficient of kinetic friction between the block and the surface is 0.20, and the impact drives the block a distance of 9.5m before it comes to rest, what was the muzzle speed of the bullet?
during heavy rain a section of a mountainside measuring 3.8 km horizontally perpendicular to the slope 0.44 km up along
A 72.0-kg man is riding an escalator in a shopping mall. obtain the work done on man by the gravitational force
A rocket is fired at 48m/s, in a direction 400 to the horizontal. It explodes in mid air, Find the speed of the rocket just before the explosion
A 2.0kg wood block is launched up a wooden ramp that is inclined at a 33 angle. The block's initial speed is 14. What speed does it have when it slides back down to its starting point
A rail car that weighs 34 N is accelerated at 8.3 m/s/s for 5.9 seconds. How much work is done on the rail car? The acceleration is constant
A train 400m long is moving on a straight track with a speed of 84.30km/h. The engineer applies the brakes at the crossing and later the last car passes crossing with the speed of 17.7 km/h. suppose constant acceleration; conclude how long the tra..
A ray of light strikes a mirror at an angle of 35.8° to the normal. What is the angle that the reflected angle makes with the normal
A hydrogen atom is in its second excited state (n = 3). calculate angular momentum of the electron
A flywheel 0.500 m in diameter pivots on a horizontal axis. A rope is wrapped around the outside of the flywheel, and a steady pull of 75.0 N is exerted on the rope. What is its moment of inertia about the rotation axis
A 0.50 kg physics book with dimensions of 25 cm 20 cm is on a table. What force does the book apply to the table
A muon is an elementary particle that can be interpreted as the electron's big brother. Calculate its "Compton Wavelength"
which type of galaxy mostly consists of a collection of older red stars that are located in the center with blue and
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