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Q1. How much resistance must be inserted in μA circuit has L = 12.6 mH and C = 1.15
the circuit to reduce the (undamped) resonant frequency by 0.01 percent?
Q2. A horizontal rope is tied to a 51.0 box on frictionless ice. What is the tension in the rope if: The box moves at a steady = 5.20? The box = 5.60 and = 5.70?
Q3. A certain car battery with a 12.0 V emf has an initial charge of 178 A•h. assume that the potential across the terminals stays constant until the battery is totally discharged, for how long in hours can it deliver energy at the rate of 115 W.
A 0.75m diameter solid sphere may be rotated about an axis through its center by a torque of 11.5m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s.What is the mass of the sphere.
A series RCL circuit includes a resistance of 271 ?, an inductive reactance of 661 ?, and a capacitive reactance of 425 ?. What is the voltage of the generator
Light of wavelength 655 nm is used to illuminate normally two glass plates 20 cm in length that touch at one end, How many bright fringes appear along the total length of the plates
An iron tower in is 340 meters tall on a cold day (=-8l4 degrees Celsius). What is the hight of the tower on a hot day whe the tempeture is 32.4 degrees Celsius
a 3 kg cart moves on an air track at 1.2 m/s. It collides with and sticks to another cart of mass 5 kg, What is the velocity of the combined cart after collision
A 4.5 box slides down a 4.7 high frictionless hill, starting from rest, across a 1.6- -wide horizontal surface, afterwards hits a horizontal spring with spring constant 550 . The other end of the spring is anchored against a wall. The ground under..
Assuming that the Earth is spherical and recalling that latitudes range from 0° at the Equator to 90° N at the North Pole, how far apart, measured on the Earth's surface
A ball is thrown horizontally from a height of 19.8 m and hits the ground with a speed that is three times its initial speed
A 75 kg patient swallows a 30 micro Ci beta emitter wtih a half life of 5 days. The beta partiles are emitted with an average energy of .35MeV. What dose equivalent does the patient recieve
The leg and cast weigh 290 -N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 120 N. Determine the weight w1 and angle α needed in order that there is no force exerted on the hip joint by the le..
A charge of 910 C was passed through a wire in 3.10min. What was the average electric current during that interval
The force on a wire carrying 8.70A is a maximum of 1.25N when placed between the pole faces of a magnet. what is the approximate strength of the magnetic field
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