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A proton, at rest in some region of space where there is an electric and magnetic field, experiences a net electromagnetic force of 8.0 x 10-13 N pointing in the positive-x direction. If the same proton then moves with a speed of 1.5 x 106 m/s in the positive-y direction, the net electromagnetic force on it decreases in magnitude to 7.5 x 10-13 N, still pointing in the positive-x direction. Find the magnitude and direction of both the electric field and the magnetic field in which this proton is moving.
Sunlight strikes the surface of a lake. A diver sees the Sun at an angle of 26.8° with respect to the vertical
snowballs are thrown with a speed of 18 ms from a roof 9.0 m above the ground. snowball a is thrown straight downward
You can think of the work?kinetic energy theorem as a second theory of motion, parallel to Newton's laws in describing how outside influences affect the motion of an object. Use the work-kinetic energy theorem to find the net work that is done on t..
An undersea research chamber is spherical with an external diameterof 5.80 m. evaluate the buoyant force on the chamber
The work that the piston does on the gas when the air expands from 0.030 m3 to 0.050m3 is 2020 J. How many moles of gas are in the container?
a 2.0 microf capacitor and a 4.0 microf capacitor are connected in series across 1000v. the charged capacitor are then
Two parallel plates have equal and opposite charges. When the space between the plates is evacuated, the electric field is E= 3.20×105V/m. find the charge density on each surface of the dielectric
A 410 W Carnot engine operates between constant-temperature reservoirs at 98°C and 49°C. find the rate at which energy is exhausted by the engine as heat
Two point charges have a total charge of 277 uC. When located 1.61 meter apart, the force each exerts on the other is 15.8 Newton and is repulsive. Determine what is the charge on each
A ball is thrown straight upward and returns to the thrower's hand after 2.70 s in the air. A second ballis thrown at an angle of 29.0° with the horizontal. At what speed must the second ball be thrown so that itreaches the same height as the one thr..
A nuclear power plant has a maximum steam temperature () of 280degrees C. It produces 790MW of electric power in the winter, when its is effectively -7 degrees C . If its summertime is 40 degrees C, what's its summertime electric power output, assumi..
One cubic meter of water (see Table 4.4 for the mass density of water) flowing over the Osprey Falls in Yellowstone National Park drops 46 m, what is the temperature increase of the water
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