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A block weighing 80N rests on a plane inclined at 30o to the horizontal. The coefficients of static and kinetic friction are 0.2 and 0.1 respectively what is the minimum magnitude of the force F parallel to the plane that will prevent the block from slipping.
A uniform solid disk, with a mass of 2.0 kg and 20 cm in diameter, is rotating about an axis through its center at 200 rpm. Calculate the final angular velocity of the combination
A movig particle encounters an external electric field that decreases its kinetic energy from 9380 eV to 7310 eV as the particle moves from position A to position B. The electric potential at A is -66.0 V, and that at Bis +28.0 V.
A 50.6-cm diameter disk rotates with a constant angular acceleration of 2.10 rad/s2. Find the linear velocity and tangential acceleration
Suppose you need to rotate the plane of polarization of a plane-polarized beam of light by 90 degrees and produce only a 10% loss in intensity, Find the angle between the successive polarizers
A bungee jumper undergoes simple harmonic motion with amplitude 7.9m and frequency 0.110Hz. Determine the bungee jumper's velocity
an automatic external defibrillator delivers 125j of energy at a voltage of 1050v. what is the capacitance of this
The starter motor of a car engine draws an electric current of 26.0 A from the battery. The copper wire to the motor is 4.60 mm in diameter and 1.34 m long. The starter motor runs for 0.85 s before the car engine starts up. How much electric charge p..
a current of 6.09 a in a solenoid of length 13.6 cm creates a 0.361-t magnetic field at the center of the solenoid. how
a 0.5kg box is sliding with a speed of 6ms on a frictionless level surface toward a spring of force constant k. it hits
A 50.5 g ice cube, initially at 0°C, is dropped into a Styrofoam cup containing 360 g of water, initially at 19.2°C. What is the final temperature of the water
at the local county fair, you watch as a blacksmith drops a 0.50kg iron horseshoe into a bucket containing 25kg of water. what is the equilibrium temp of the system
In a ballistic pendulum demonstration gone bad, a 0.54g pellet, fired horizontally with kinetic energy 3.40J, how much kinetic energy did the pellet have after emerging from the Styrofoam
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