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A pendulum is made of a long narrow stainless steel rod and has aperiod of T seconds at -200.0 degrees C. If the temperatureincreases to +400.0 degrees C, what is the new period? (The linearexpansion coefficient of the stainless steel is 1.600×10^-5K^-1).
a circular wire of radius 5.19 cm has a current of 3.81 a flowing in it. the wire is placed in a uniform magnetic field
tyrone an 85-kg teenager runs off the end of a horizontal pier and lands on a free-floating 158-kg raft that was
A solenoid of radius 2.4 cm has 420 turns and a length of 16 cm. Find the rate at which current must change
A 6.30kg block is pushed 9.45m up a smooth 37.0? inclined plane by a horizontal force of 80.0N . If the initial speed of the block is 3.35m/s up the plane. Calculate the initial kinetic energy of the block
If the ropes supporting the rings are attached to ceiling directly above, what is the tension in each rope.
A battery with an emf of 9.00 V has an internal resistance r. When connected to aresistor R, the terminal voltage is 8.80 V and the current is 0.11A. When a second identical battery is added in series and the externalresistor is R = 15 Ohms what i..
Two wires are parallel (heading north-south). The current in each wire is northward. What is the direction of the magnetic field at the location of the right-hand wire due to the current in the left-hand wire? What is the direction of the magnetic fo..
Two in-phase speakers 2.0 m apart in a plane are emitting 1800 Hz sound waves into a room where the speed of sound is 340m/s . Is the point 4.0m in front of one of the speakers, perpendicular to the plane of the speakers, a point of maximum constr..
A point charge of ?3.3 ?C is located in a uniform electric field of 34 N/C. You move the charge, find the resulting change in the electric potential energy of the system
How to compute the average force
If 43.8 cm of copper wire (diameter = 1.02 mm, resistivity = 1.69 x 10-8?·m) is formed into a circular loop and placed perpendicular to a uniform magnetic field that is increasing at the constant rate of 8.38 mT/s
Unless otherwise stated, all objects are located near the Earth's surface, where g = 9.80 m/s2. A student weighing 660N crouches on a scale and suddenly springs vertically upward
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