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A long solenoid of length 40 cm, cross section area 24 cm^2 and 20 turns per centimeter carries a current of 8.0 A. Find
a) the self inductance of the solenoid,
b) the magnetic field inside the solenoid,
c) the magnetic energy stored in the solenoid.
Ann was reaching up to grab a box of cereal that was on top of the refrigerator. She had extended her arm as well as stood on her tip-toes to reach the box. Which primary muscle allowed Ann to extend her elbow and which 2 primary muscles allowed h..
Imagine that in a certain proton accelerator, roughly 1011 protons at a time go around a ring having a radius of 4.0 km, What is the current flowing in the ring, in amperes
The surfer in the photo is catching a wave. Suppose she starts at the top of the wave with a speed of 1.50 m/s, how much work is done by the (non-conservative) force of the wave
A satellite of mass320kg is in a circular orbit around the Earth at an altitude equal to the Earth's mean radius. Calculate the gravitational force acting on it
A hollow sphere of radius 0.30 m, with rotational inertia I = 0.098 kg m2 about a line through its center of mass, rolls without slipping up a surface inclined at 27° to the horizontal. What is the speed of its center of mass now
After a hard rain, you walk out into the parking lot and notice an oil sheen on top of a puddle of water. When viewed from directly above, What is the minimum thickness of the oil
A 120-V fish tank heater has a power rating of 112 W. Calculate the resistance of the heater and Calculate the current through the heater
The displacement vectors 38.5 cm at 15.0° and 23.0 cm at 62.0° both start from the origin and form two sides of a parallelogram. Find the area of the parallelogram
A uniform disk of radius 0.463 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
Assume a dampening depth, d, of 30 cm and a period, lambda, of 24 hours (8.64 x 104 sec). Assume a volumetric heat capacity, C, of 0.5 cal/cm °C, find the thermal diffusivity and conductivity
A 79.0 kg man is riding in a shopping mall. The escalator moves the man at constant velocity from ground level to the floor above, the vertical height of 4.40m.What is the work completed on the man by the gravitational force and the escalator.
An astronaut's pack weighs 18.8N when she is on earth but only 1.95 N when she is at the surface of an asteroid. What is the mass of the pack on the asteroid
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