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The earth has not only a magnetic field (which directs your compass), but an atmospheric electric field. During days of fair weather (no thunder clouds), this atmospheric field has a strength of about 100 N/C and it points down. a) What force would a single electron experience if placed in this field?
If this electron was on a dust particle with a mass of 1.0 x 10-18 kg, what would the net force (electric and gravitational)on the particle be?
A person is making homemade ice cream. She exerts a force of magnitude 22 N on the free end of the crank handle, and this end moves in a circular path of radius 0.28 m. The force is always applied parallel to the motion of the handle. If the handl..
A ramp inclined at 60.0 degrees with respect to the horizontal rests on a floor. The mass of the ramp is 10.kg, and the coefficent of static friction between the bottom of the ramp and the floor is .8. A 5.0 kg block is then placed on the inclined..
An iron tower in is 307 meters tall on a cold day (T = -8.3 degrees Celsius). What is its height of the tower on a hot day
An electric field of 7.85 10^5 V/m is desired between two parallel plates, each of area 42.0 cm2 and separated by 2.45 mm of air. What charge must be on each plate.
The car accelerates uniformly to a speed of 2.05 m/s in 13.0 s and then continues at constant velocity.
The particles in the nucleus of an atom are approximately 1.00×10?15{\rm m} apart, while the electrons in an atom are about 1.00×10?10{\rm m} from the nucleus. How many pounds would the force be
a taxi company charges two dollars for the first mile or part of a mile and 20 cents for each succeeding tenth of a
A 110kg linebacker tackles an 85kg halfback. immediately before thecollision the linebacker is slipping with a velocity of 8.8 m/snorth and the halfback is sliding with a velocity of 7.2m/s east.what is the velocity at which the two players move t..
a rope of total mass m and length l is suspended vertically. a pulse travels from the bottom to the top of the rope in
Newton's universal constant of gravitation is G = 6.67 × 10-11 meters cubed (m3) per kilogram per second per second. The Sun's mass is M = 1.9891 x 10^30 kilograms. Earth's orbital period is P = 365.256366 days. Obtain the average radius of Earth's o..
Traveling at a speed of 18.9 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. What is the speed of the automobile
A 525-ohm resistor and a 295-mH inductor are connected in series with an ac generator with an rms voltage of 20.0V
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