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(a) A 0.790 m long section of cable carrying current to a car starter motor makes an angle of 60.0° with the earth's 5.50 10-5 T field. What is the current when the wire experiences a force of 7.00 10-3 N?
(b) If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.95 T field (perpendicular to the wire), what force is exerted on this segment of wire?
A uniform 1.9-kg rod that is 0.97 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
Block A (m = 1.20 kg), originally at rest, is pushed with a net horizontal force of 7.86 N for 5.34 m as it slides across a horizontal, What is its impact speed
What is the magnitude of the acceleration caused by magnetic force? Ignore the gravitational force acting on the electron.
a kangaroo jumps at an angle of 80deg above the horizontal with a velocity of 15 ms. if the mass of the kangaroo is 75
Two waves traveling on a string in the same direction both have a frequency of 141 Hz, a wavelength of .43 m, and an amplitude of .16 m. What is the phase difference between the two waves
What was the bullet's flight time. A marble is thrown horizontally with a speed of 11 m/s from the top of a building. When it strikes the ground, the marble has a speed that makes an angle 38° with the horizontal. From what height above the ground..
Two balls of identical mass of 1.152 kg and with identical charges placed on them hang from the ceiling on identical strings of lengths 1.310 m. If the angle with respect to the vertical that the strings form is 24.5 degrees.
Two examples of chemotherapeutic drugs (drugs used to treat cancer) and their cellular actions are listed below. Describe why each drug could be fatal to a cell.
A screw with 15 threads per centimeter is driven 1.01 cm into its fixture in 11.2 s with a cordless electric screwdriver. What is the average angular speed of the screwdriver
A jet lands at 14.8 m/s, applying the brakes 2.19 s after landing. Find the acceleration needed to stop the jet within 5.89 102 m
How far from the firing point is the height of the projectile.
A 44 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is 5.40 x10^5 N·m2/C. What is the magnitude of the electric field.
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