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A 0.120-kg, 50.0-cm-long uniform bar has a small 0.055-kg mass glued to its left end and a small 0.110-kg mass glued to the other end. The two small masses can each be treated as point masses. You want to balance this system horizontally on a fulcrum placed just under its center of gravity. How far from the left end should the fulcrum be placed?
Calculate the activity of Uranium-238 in 100 grams of uranium ore containing 5 weight percent U308. What is the expected activity of Uranium-234 in the ore
Find the speed of light in flint glass (refraction index 1.67). Use 2.99792x10^8 m/s for the speed of light. Find the speed in light in zircon
a 9.5-uC charge is at x = 15 cm, y = 5.0 cm and a -3.2-uC charge is at x = 4.4 cm, y = 11 cm. Find the force on the negative charge
An air-filled capacitor consists of two parallel plates, each with an area of 7.06 cm2, separated by a distance of 1.28 mm, Find the capacitance
The manometer tube has an internal diameter of 0.5 cm and it is initially filled with water. Exactly 2 cm3 of an unknown liquid is then poured into one leg of the manometer, and a displacement of 5 cm between the surfaces is measured as shown. Fin..
A woman on a bridge 104 m high sees a raft floating at a constant speed on the river below, She drops a stone from rest in an attempt to hit the raft, Find the speed of the raft
Two capacitors are connected in series. Let 3.40mF be the capacitance of first capacitor, Calculate the potential difference across each capacitor
Three point charges are on the x-axis. The first is located at -4meters and has a charge of -6 coulombs. compute the net force on the charge at the origin
Find out the maximum height reached by the rocket.
Assuming that the magnetic field of the earth has magnitude of 5x10^-5 T at the equator and is parallel to the surface of the earth and that the current in the wire flows toward east
A very hard rubber ball (m = 0.7 kg) is falling vertically at 9 m/s just before it bounces on the floor. find the average force exerted by the floor on the ball
A transformer is to be used to provide power for a computer disk drive that needs 5.0 V (rms) instead of the 120 V (rms) from the wall outlet. Find the number of turns in the secondary
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