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a box of textbooks at an unknown mass is set in motion with the intial speed of 0.5 m/s on a loading ramp that makes and angle of 16 degrees with the horizontal. the coefficient of kinetic friction is 0.25
A) find the normal force on the box.
B) find the acceleration of the box.
Stephan paces back and forth in the lecture room. He starts at x=0 (measured in dm frm the edge of the table), What is the distance travled and what is the displacement
A 2inx4inx8ft is leaning against the wall, draw afree-body diagram of forces on it. what would be the minimum angle of the wooden bar with the floor
A capacitor of value C is connected across a battery of voltage V. The capacitor is fully charged. Find the new charge on the capacitor
An energy of 28.0 eV is required to ionize a molecule of the gas inside a Geiger tube, What maximum number of ion pairs can it create
A cylinderical wooden log rolls (without slipping) down a small ramp. The log has a radius of 15 cm, a length of 2.0 m, and a mass of 78 kg. What is the log's total kinetic energy at the bottom of the ramp
A high-energy pulsed laser emits a 1.2-ns-longpulse of average power 1.7×1011W. Determine the rms value of the electric field
A woman walks 290 m in the direction 37° east of north, then 177 m directly east. Find (a) the magnitude and (b) the angle (from due east) of her final displacement from the starting point. (c) Find the distance she walks.
A boat's mast is held by two cables, one attached to the front of the ship and the other to the back. What is the force acting upwards on the mast exerted by the boat at the bottom of the mast
Classically, the electron cannot pass through the barrier because E
An old-fashioned single-play vinyl record rotates on a turntable at 58.0\({\rm rpm}\), What are the angular velocity in rad/s and period of the motion
a 1.0 point charge is 15m from a second point charge, what is the magnitude of the second charge?
A 127-turn circular coil of radius 2.09 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. Find the magnitude of the average EMF
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