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A solenoid 24.0cm long and with a cross-sectional area of 0.600cm^2 contains 420 turns of wire and carries a current of 75.0 A .
a) Calculate the magnetic field in the solenoid.
b) Calculate the energy density in the magnetic field if the solenoid is filled with air.
c) Calculate the total energy contained in the coil's magnetic field (assume the field is uniform).
d) Calculate the inductance of the solenoid.
A rectangular air mattress is 2.10m long, 0.48m wide and 0.09 m thick. If it has a mass of 2.30 kg, what additional mass can it support in water.
q1. an electric field of 254000 nc points due west at the certain spot. what are the magnitude and direction of the
You have a small electromagnet that consumes 300 W from a residential circuit delivering 120 V at 60.0 Hz. find the internal resistance of the electromagnet
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A 3.62m long organ pipe is open on both ends. the fundamental frequency is 47Hz, and Find its first three overtone frequencies
The weight of an object is the product of its mass, , and the acceleration of gravity, (where ). If an object's mass is , what is its weight
Suppose a constant ratio of 13.60 counts per minute per gram of living matter. A sample of a petrified tree was found to give 1.8 counts per minute per gram. How old is the tree.
A 253 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp and the log has an acceleration of 0.700 m/s2, Find the tension in the rope
A 19.6cm diameter coil consists of 40 turns of circular copper wire 1.7mm in diameter. estimate the current in the loop
A hot-air balloon is rising upward with a constant speed of 3.88 m/s. When the balloon is 7.87 m above the ground, How much time elapses before the compass hits the ground
Two passenger trains A and B, each 220 m long, pass a 50 m long railroad platform in Winnepeg. The trains are moving in opposite directions at equal speeds of 0.670c with respect to the ground, What is the difference in arrival times
A toddler, initially standing next to his father in the front yard, walks slowly away from his dad in the direction of 30.0? N of E for 3.50 meters. How far was the distance he walked due south
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