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A 22.0 kg floodlight in a park issupported at the end of a horizontal beam of negligible mass thatis hinged to a pole. A cable at an angle of θ =30.0°with the beam helps to support the light.
(a) Find the tension in the cable.
N
(b) Find the horizontal force exerted on the beam by the pole.
(c) Find the vertical force exerted on the beam by the pole.
Hammerhead sharks are known to be able to detect magnetic fields. What is the magnetic field strength at the center of the tankdue to the current in the coil
a circular loop of wire of radius 12.1 cm is placed in a magnetic field directed perpendicular to the plane of the loop
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Calculate the horsepower needed for a 1,114 kg car to climb up to an altitude of 1,097.91 m from sea level in 1.81 hours
Four point charges of magnitude 3.1 µC are at the corners of a square of side 5 m. Find the electrostatic potential energy if all the charges are negative.
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