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A +60 µC charge is placed 56 cm from an identical +60 µC charge. How much work would be required to move a +0.57 µC test charge from a point midway among them to a point 11.0 cm closer to either of the charges?
A beaker of water rests on an electronic balance that reads 999.0 g. A 2.4 cm-diameter solid copper ball attached to a string is submerged in the water, What is the new balance reading
A 55.0-kg ice skater is moving at 4.07 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. find the force exerted by the horizontal rope on her arms
As part of a safety investigation, two 1900 kg cars travelling at 19 m/s are crashed into different barriers. Determine the average forces exerted on (1) car that hits a line of water barrels and takes 1.7 s to stop, and (2) car that hits a concre..
point p is at a potential of 540 kv and point s is at a potential of 250 kv. the space between these points is
A 6090 kg space probe moving nose first toward Jupiter at 105m/s relative to the Sun fires its rocket engine, What is the final velocity of the probe
for an rlc circuit with a resistance of 13.0 k? a capacitance of 7.0 microf and an inductance of 35.0 h. what frequency
An empty 1390 kilogram vehicle has its CM2.30 meter behind the front of the car. Obtain how far from the front of the car will the CM be when two people sit in the front seat 2.80 meter from the front of the vehicle
during the spin cycle of your clothes washer the tub rotates at a steady angular velocity of 32.5 rads. find the
A bullet of mass 4.00g is fired horizontally into a wooden block of mass 1.26kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.240. What was the initial speed of the bullet
q1. a 2.47 kg steel ball strikes a massive wall at 11.7 ms at an angle of alpha 67.2deg with the plane of the wall. it
A box slides across a frictionless floor with an initial speed v = 4.9 m/s. It encounters a rough region where the coefficient of friction is uk = 0.3. What is the shortest length of rough floor which will stop the box
a uniform magnetic field of 1.5 t exists in a cylindrical region of radius10.0 cm its direction parallel to the axis
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