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A horizontal conductor in a power line carries a current of 5500 A from south to north. Earth's magnetic field (60?T) is directed toward the north and is inclined downward at 70° to the horizontal. Find the magnitude and direction of the magnetic force on 100 m of the conductor due to Earth's field. Magnitude of F?
A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance. (a) How long is the ball in the air?
A light ray enters a rectangular glass slab (n = 1.5) at point A at an incident angle theta, what is the index of refraction of the unknown liquid
the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
A car of mass 1800 travelling at 60.7 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and the car's tires. Use = 9.80 throughout the problem.
You have a pulley 13.1 cm in diameter and with a mass of 2.0 kg. You get to wondering whether the pulley is uniform. What is the actual moment of inertia of the pulley
A parallel-plate capacitor has plates of area 114.0 cm2 and a separation of 1.45 cm. A battery charges the plates to a potential difference of 177.0 V, What is the capacitance with the slab in place
A spaceship leaves Earth traveling at 0.65 c. A second spaceship leaves the first at a speed of 0.80 c with respect to the first. Calculate the speed of the second ship with respect to Earth if it is fired directly backward toward Earth
The wave function for a wave on a taut string is given by y(x,t)=(0.350m) sin (10pi(t)-3pi(x)+pi/4), What is the energy contained in each cycle
The planet Jupiter revolves around the Sun in a period of about 12 years (3.79 × 108 seconds). What is its mean distance from the center of the Sun? The mass of the Sun is 1.99 × 1030 kilograms. A. 1.1 × 10^11 meters B. 1.5 × 10^11 meters C. 2.3 ×..
What fractional increase in tension of one wire will lead to the occurrence of 2 beats/s when both wires oscillate simultaneously.
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, Find the net downward force on the tank's flat bottom
Two point charges 1.6cm apart have an electric potential energy -160?J . The total charge is 25nC. What are the two charges
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