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Three point objects with net charge of Q1 = +78 µC, Q2 = +47 µC, and Q3 = -80 µC, respectively, are placed along a straight line. The object in the center, (with a charge of Q2), is 0.35 m from each of the others with Q1 to its left and Q3 to its right. Calculate the net force on each charge due to the other two. (State both magnitude and direction.)
A car takes 11 s to go from v = 0 to v = 80 m/s at about constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value must you use for a.
objects with masses of 125 kg and a 425 kg are separated by 0.390 m.a find the net gravitational force exerted by these
A circular wire loop of area 0.18m squared carries a current of 4 A. the coil lies in a horizontal plane with the current flowing in the counterclockwise direction, find the magnitude of the torque which acts on the loop
An object is released from rest on a planet that has no atmosphere. The object falls freely for 3m in the first second. What is the magnitude of acceleration due to gravity on the planet?
on a banked race track the smallest circular path on which cars can move has a radius of 112 m while the largest has a
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +3q. Sphere B carries a charge of -q. compute the ratio of the final charge on sphere
a pump for a power plant takes in saturated water at 1.5 psi and boosts its pressure to 1500 psi. the pump has an
Two infinitely large sheets of charge are vertical, parallel to each other, and 24.0 cm apart. One of the sheets has a charge density of +4.60 x 10 -7 C/m2. Calculate the unknown sheet's surface charge density
A person pushes with a force of 10.0 N on a stick pin to try to push it into a bulletin board. find the average pressure (in Pascals) on the board at the tip of the pin
ocean waves with wavelength 1.2 m and period 1.5s are moving past a pier. a boy runs along the pier, how many wave crests pass the boy each second
Positronium is a hydrogen atom with the proton replaced by a positron (like electron, but w/ positive charge). Calculate E1 for positronium.
a flat metal washer is heated. as the washers temperature increases what happens to the hole in the center? a flat
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