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A compact disc spins at 2.2 revolutions per second. An ant is walking on the CD and finds that it just begins to slide off the CD when it reaches a point 2.9 cm from the CD's center.
(a) What is the coefficient of friction between the ant and the CD?
(b) Is this the coefficient of static friction or kinetic friction?
1. expalin why ionic compound are formed when a metal from the left side of the periodic table reacts with a nonmetal
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.60×106N, What is the total work done by the two tugboats on the supertanker
A resistor with R = 2.2kΩ is connected to an AC generator that operates at 60 Hzwith an amplitude of 34 V. Find the amplitude of the current through the resistor. Find the average power dissipated in the resistor.
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An air puck of mass m1 = 0.24 kg is tied to a string and allowed to revolve in a circle of radius R = 1.0 m on a frictionless horizontal table. What is the horizontal force acting on the puck
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a car battery has a rating of 170 ampere-hours. this rating is one indication of the total charge that the battery can
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In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction
A proton and an electron are fixed in space with a separation of 911 nm. Calculate the electric potential at the midpoint between the two particles, Find the potential and the magnitude of the force.
A city has streets laid out in a square grid, with each block 135 m long. If you derive north for three blocks, then west for two blocks, how far are you from your starting point
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