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The Coulomb force between two small, identical metallic balls, carrying charges q1 and q2, respectively, is found to be an attraction of 2.00 N when they are 1.00 m apart. The force becomes a repulsion of 1.00 N after the balls are brought in contact and placed back to their original positions. What are the values of q1 and q2 if q1<0 and |q1|<|q2|.
a 280 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. the ramp is inclined
Through the total eclipse of the sun, the moon just obscures the sun. The distance from the earth to the moon is 3.84×10 8 m and the distance from the earth to the sun is 1.50×10 11 m. Estimate the ratio of the diameter of the sun to the moon.
Points A and B have electric potentials of 320 and 160, respectively. When an electron released from rest at point A arrives at point C, its kinetic energy is.
Since force is dp/dt, the force due to radiation pressure reflected off of a solar sail can be calculated as 2 times the radiative momentum striking the sail per second. In the vicinity of Earth's orbit around the Sun, the energy intensity of sunl..
A 225 kg projectile, fired with a speed of 109 m/s at a 66.0 angle, breaks into three pieces of equal mass at the highest point of its arc (where its velocity is horizontal). Determine the energy released in the explosion
a camera lens is initially set at f16 for a shutter speed of 1160s. if the amount of lighting on the subject is
A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop at an amusement park. Determine the speed of the rider at the top of the loop
An 30-kg person puts on a life jacket, jumps into the water, and floats. The jacket has a volume of 2.8x10^(-2) m^3 and is completely submerged under the water. What is the density of the life jacket
Given a planet's circumference and using the the Universal gravitational constant how do I obtain a planet's mass and then calculate the weight of an astronaut on that planet
Cosmonaut Andrei, your co-worker at the International SpaceStation, tosses a banana at you at a speed of 18 m/s. At exactly the same instant, you fling a scoopof ice cream at Andrei along exactly the same path.
question a solid ball encounters a 0.760 m vertical rise on the way back to the ball rack. ignore frictional losses and
A rectangular coil in the plane of the page has dimensions a = 46.00 m and b = 80.00 m. A long wire that carries a current I = 4.50 A is placed directly above the coil. For what value of x is magnitude of flux through the coil a minimum.
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