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A magnetic field has a magnitude of 1.20 10-3 T, and an electric field has a magnitude of 5.40 103 N/C. Both fields point in the same direction. A positive 1.8 µC charge moves at a speed of 3.20 106 m/s in a direction that is perpendicular to both fields. Determine the magnitude of the net force that acts on the charge.
An elevator moves downward in a tall building at a constant speed of 4.35 m/s. Estimate the highest floor from which the bolt can fall
A proton has a mass of 1.67 x 10^-27 kg and a charge of 1.60 x 10^-19 C. What is the gravitational force on a single proton at Earth's surface.
A small sphere with mass 1.20 hangs by a thread between two large parallel vertical plates 5apart. The plates are insulating and have uniform surface charge densities and. The charge on the sphere is = 8.80×10-6.
Two converging lenses, each of focal length 13.4 cm, are placed 62.5 cm apart, and an object is placed 27.6 cm in front of the first. Where is the final image relative to the second lens formed
stationary L = 3.02-m board of mass 4.56 kg is hinged at one end. A force F is applied vertically at the other end, and the board makes a ? = 31.4° angle with the horizontal. Calculate the force exerted by the hinge
A spherical satellite with a radius of 75m is spinning over its own axis with an angular speed of 232rad/s. What is the angular momentum after the failure
A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
A 7.28-%u03A9 resistor is connected across a 9.00-V battery. The voltage between the terminals of the battery is observed to be only 7.27 V. obtain the internal resistance of the battery
A nichrome toaster wire, initially at room temperature, carries 2.72A immediately after it's turned on. What's the temperature of the nichrome then
Consider two spheres of radius a with their centers separated by a distance d>>a. Find the capacitance of the system of the two spheres
What is the linear speed of a point on the equator, and on the Arctic Circle (latitude 66.5 degrees) and (c) at latitude of 45 N, due to the earth's rotation
A negative charge moves in the direction of a uniform electric field. Does the charge move to a position of higher or lower potential
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