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Two identical point charges (q = +7.60 x 10-6 C) are fixed at diagonally opposite corners of a square with sides of length 0.470 m. A test charge (q0 = -2.20 x 10-8 C), with a mass of 7.20 x 10-8 kg, is released from rest at one of the empty corners of the square. Determine the speed of the test charge when it reaches the center of the square.
A 7 g bullet has a speed of 270 m/s and embeds itself into a 600 g block. How far does the block slide after the collision before coming to rest
A hockey player is standing on his skates on the frozen pond when an opposing player, moving with a uniform speed of 13 m/s, skates by with the puck. After 2.5 s, the first player makes up his mind to chase his opponent.
A projectile is shot with initial velocity 20.0 m/s at launch angle ? = 60.0? up from horizontal. How far from the gun does the other fragment land
A certain traffic light is yellow for 2.70 s before it turns red. To come to a complete stop before reaching the intersection, what is the minimum distance you can be from the light when it turns yellow
q1. a straight 2.60 m rod pivots around a perpendicular axis so that it can swing freely in a horizontal plane. jane
A continuous stream of electrons flows along a long straight paththrough a piece of laboratory equipment: 5.750e+18 ofthem pass through the equipment each second. What is the strengthof the magnetic field created by this stream at a distance of0.250 ..
A ten pound car wheel has a moment of inertia of 0.38 kg m2. What is the wheel's rotational kinetic energy
One January morning, a warm chinook wind rapidly raised the temperature in Spearfish, South Dakota, from below freezing to +11.1° C. Find the average speed at which its height would decrease
An isolated conductor of arbitrary shape has a net charge of +1.2 10-5 C. What is the charge on the cavity wall
A neutron star is the remnant left after certain supernovae (explosions of giant stars). What is a typical neutron star density in g/cm3
Unpolarized light is shone on a stack of 3 polarizers, What fraction of the initial intensity emerges from the stack
a pulley having a rotational inertia of 1.0x104 gcm2 and a radius of 10 cm is acted upon by a force applied
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