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A bullet with a mass of 8 g is fired into a 11 kg wood block that is at rest on a wood table. The block, with the bullet embedded, slides 5.0 cm across the table. The coefficient of kinetic friction for the wood is 0.20. What is the speed of the bullet?
A proton and an electron are moving due east in a constant electric field that also points due east. The electric field has a magnitude of 1.0×104N/C. Decide the magnitude of the acceleration of the electron and the proton.
A student living in a 4-m X 6-m X 6-m dormitory room turns on her 150-W fan before she leaves the room on a summer day, hoping that the room will be cooler when she comes back in the evening. Assuming all the doors and windows are tightly closed a..
A square coil of side 5.48-cm in an ac generator rotates at 50.0 Hz and develops an emf of 225V (rms). If the coil contains 805 turns, find the magnitude of the magnetic field in which it rotates.
Sunlight reflects from a concave piece of broken glass, converging to a point 11 centimeter from the glass. Evaluate the radius of curvature of the glass
question a sodium-vapor lamp has power output of 10.0 w. using 589.3 nm as the average wavelength of this source
A 12.0 kg box resting on the horizontal, frictionless surface is attached to a 5.00 kg weight by a thin, light wire that passes without slippage over the frictionless pulley. The pulley has the shape of the uniform solid disk of mass 2.10kg and diame..
a sled is resting on packed snow. the coefficient of kinetic friction is now only 0.12. if a person weighing 650 N sits on the sled, what force is needed to pull the sled across the snow
If the air pressure in the room is 1.00 atm, what is the mass density of the liquid?
A rope, under a tension of 370 N and fixed at both ends, oscillates in a second-harmonic standing wave pattern. What is the speed of the waves on the rope
any two conductors can be considered to be a capacitor. suppose one conductor is a sphere of radius a and the other is
A team of tornado-chasing meteorology graduate students is out in search of tornados. What frequency of sound do the students hear
where along the x axis can q3 be placed and the net force on the zero, other than the trivial answers of x= +infinity and x= -infinity
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