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An iron anchor of density 7870 kg/m^3 appears 200 N lighter in water than in air.
1. What is the volume of the anchor?
2. How much does it weigh in air?
A long, straight wire lying along the x-axis carries a current, i, flowing in the positive x-direction. A second long, straight wire lies along the y-axis and has a current i in the positive y-direction. What is the magnitude and the direction of the..
At a certain location, the Earth's magnetic field has a magnitude of 5.6*10^-5 T and points in a direction that is 68° below the horizontal. Find the magnitude of the magnetic flux through the top of a desk at this location that measures 110 cm by 71..
The wire in a 150 W aquarium heater has a diameter of 0.12 mm and is made of iron, What resistance should the wire have while the heater is operating
A +6.00-µC charge is moving with a speed of 8.80 104 m/s parallel to a very long, straight wire. Find the magnitude and direction of the force on the charge
A 50,000 locomotive, with steel wheels, is traveling at 7.0 on steel rails, How far will the locomotive roll before it comes to a stop
A rope is used to pull a 5.57 kg block at constant speed 2.78 m along a horizontal floor. determine the work done by the rope's force
A car is moving at a constant velocity for 3s until it is 3.0 m from a yellow light. It slows to a stop in 2.0s. It remains stopped for 50s and then speeds up for 2s.
A ball player hits a home run, and the baseball just clears awall 20.6 m high located 131.0 m from home plate. The ball is hit at an angleof 35° to the horizontal, and airresistance is negligible. Assume the ball is hit at a height of1.0 m above t..
A blue puck with a mass of 3.60×10?2kg , sliding with a speed of 0.180m/s on a frictionless, horizontal air table, makes a perfectly elastic, head-on collision with a red puck with mass m, Find the mass m of the red puck
At the same time a stone downward at 10 m/s from the roof of a 60 m tall building another is stone is thrown upward at 35 m/s from street level. What is the velocity of each stone when they cross paths
A long line carrying a uniform linear charge density +56.0 µC/m runs parallel to and 10 cm from the surface of a large, Find the location of all points on a line perpendicular to the sheet and the charged line
A 98.0 cm pendulum is released from a small angle. After 124 oscillations the amplitude is one half of its original value. The damping is proportional to the speed of the pendulum bob. Find the value of the damping coefficient, ?, (in Hz).
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