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A magnetic fields pulls on an electron with 8.6 mN of force in the + X direction while an electric filed pulls with 5.2 mN of force in the - Y direction.
a) Draw these vectors
b) Find the resulting force vector on the electron in (r, θ) form.
While the positions of these balls are fixed, ground the ball X and then break the grounding. when X and Y remain in touch, remove Z. Then divide X and Y. What are the charges (if any) on each of the balls.
A playground merry-go-round has a radius of 4.60 m and a moment of inertia of 240 kg*m^2 and turns with negligible friction about a vertical axle through its center. How much work did the child do on the merry-go-round
A uniform field E = -170000 j N/C exists between two plates of length L = 3 cm. Find the angle at which it emerges
An x-ray machine uses 260 kV rms at80.0 mA rms when it is operating. The power source is a 420 V rms line. What must be the turns ratio of the transformer? What is the rms current in the primary?
A spherical weather balloon os filled with Hydrogen until itsradius is 3m. Total mass including instruments is 15kg. Find buoyant force acting on the balloon
You travel from "point" Columbia to St. Louis in a car moving at a constant speed of 60 km/h. What is your average speed for the entire trip
At a distance r away from a point charge q, the electric potential is V = 600 V and the magnitude of the electric field is E = 200 N/C
q1. an aluminum pot cal 0.22 calg.k is heated to 320c. then an 80g ice cube at 0c isplaces in the pot it melts and is
A 12.0-{rm kg} box resting on a horizontal, frictionless surface is attached to a 5.00-{rm kg} weight by a thin, light wire that passes over a frictionless pulley). The pulley has the shape of a uniform solid disk of mass 2.40 {rm kg} and diameter 0...
A mass m = 4.3 kg is attached to a vertical spring with k = 220 N/m and is set into motion. What is the frequency of the oscillation
A 120 kilogram crate is pulled across the floor with a constant force of 500 Newton that is applied at an angle of 25o above the horizontal. Calculate the speed of the crate after 20 m of travel
Cannon fires a cannonball from the top of a wall at a speed of 31.64 m/s and an angle of 28.25 degrees from the horizontal. A cannonball that was accidentally dropped from the top of the castle hits the water below in 2.17 s. What is the horizontal d..
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