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Two point charges, q1 and q2 attract each other with a force of.012N. q1 is positive and has a charge of .4uC and q2 is negative and has a charge of -.3 uC. Find a) the magnitude of the electric field produced by q1 at the location of q2, b)the direction of this field and c) the distance between the two charges.
Assume a 64 kg boy and a 42 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3 m/s2, find out the magnitude of the acceleration of the boy toward girl.
An atomic nucleus of mass m traveling with speed v collides elastically with a target particle of mass 2m initially at rest and is scattered an 90 degrees. what angle does the target particle move after collision
A constant volume gas thermometer is used to measure thetemperature of an object. What is the temperature of the object
a ball is tossed so that it bounces off the ground rises to a height of 1.30 m and then hits the ground again 1.70 m
A factory worker pushes a crate of mass 30.7 a distance of 4.10 along a level floor at constant velocity by pushing horizontally on it. How much work is done on the crate by friction
small 12.8g plastic ball is tied to a very light 26.9cm string that is attached to the vertical wall of a room. Find the direction of the electric field in the room
consider a waterfall that is 28.3 m high. suppose that at the top water feeds into the water fall at an extremely slow
Four rays of light are incident on a surface of water. Their angles of incidence are 20, 30, 45, y 60 degrees. Calculate the angle of refraction for each ray
consider a system consisting of 3 charges. a 1 c charge is located at x 0 a 2 c charge is located at x 2 cm and -1 c
the entrance to a large lecture room consists of two side-by-side doors one hinged on the left and the other hinged on
A loudspeaker of mass 20.00 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.50 {rm m}.
A tire 0.650 m in radius rotates at a constant rate of 150 rev/min. What is the acceleration of the stone
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