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A man enters a tall tower, needing to know its height. Henotes that a long pendulum extends from the ceiling almost to thefloor and that its period is 25.0 s.
(a) How tall is the tower?
m
(b) If this pendulum is taken to the Moon, where the free-fallacceleration is 1.67 m/s2 what is the period there?
s
A 45 degree wedge is pushed along a table with constant acceleration A. A block of mass m slides without friction on the wedge. Find its acceleration (gravity is downwards),
A luge and its rider, with a total mass of 104 kg, emerges from a downhill track onto a horizontal straight track with the initial speed of 53 m/s. suppose they stop with the constant deceleration of 2.30 m/s2.
A copper wire of length L and cross sectional area A is connected to a 12.0 volt DC power supply. The current through the wire is measured at 36A. What is the current through both wires
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an explorer is caught in a whiteout in which the snowfall is so thick that the ground cannot be distinguished from the
The charges and coordinates of two charged particles held fixed in the xy plane are: q1=6.00 ?C, x1=6.700 cm, y1=4.600 cm, Find the direction and magnitude of the electrostatic force on q2
A Meteorite Strikes On October 9, 1992, a 27-pound meteorite struck a car in Peekskill, NY, leaving a dent 22 cm deep in the trunk. If the meteorite struck the car with a speed of 130 m/s , what was the magnitude of its deceleration, assuming it t..
a rock is thrown straight up with intial velocity of 15.5m/s. what maximum height will the rock reach before starting to fall downward
Four point charges, each with Q = 8.8 µC, are arranged at the corners of a square of edge length 1.4 m. What is the electric potential at the center of the square
A hypodermic needle consists of the plunger of circular cross-section that slides inside a hollow cylindrical syringe. When the plunger is pushed, the contents of syringe are forced through a hollow needle.
A square wire with 1.7 m sides is centered on the origin of the xy-plane. A long, straight wire carries a current of 2.0 A, what emf is present in the conductor
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