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Assume you wish to make a solenoid whose self-inductance is2.8 mH. The inductor is to have across-sectional area of 1.20*10-3 m2 and a length of0.053 m. How many turns of wire are needed?
A steel wire with mass 29.7 g and length 1.52 m is strung on a bass so that the distance from the nut to the bridge is 1.10 m. Compute the linear density of the string
A wildlife biologist tracks an elk over flat terrain by following the emissions from a radio collar worn by the animal. If the elk travels 3.0km at an angle of 30 degrees East of North, followed by 2.0km at 40degrees West of North, and finally a 4..
The generator at a power plant produces AC at 27,000 V. A transformer steps this up to 355,000 V for transmission over power lines. how many turns must there be in the output coil
A transformer consisting of two coils wrapped around an iron coreis connected to a generator and a resistor, as shown in thedrawing. There are 11 turnsin the primary coil and 22 turns in the secondary coil. The peakvoltage across the resistor is 73.8..
A horizontal uniform bar of mass 2.6 kg and length 3.0 m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached a distance 0.6 m from the other end. A monkey of mass 1.3 kg walks from one en..
If the acceleration of a 75 kg skydiver is 4m/s2, what is the net force on the skydiver
A 77.1 kg man is riding an escalator in a shopping mall. What is the work done on the man by the gravitational force
A hockey stick is swung with an average angular acceleration of 1.5 rad/s2. What is an angular velocity of the stick when it strikes the ball at the end of 0.8 second swing.
To determine the center of mass of her body, a student lies on aplank of mass m=10 kg. The plank is supported by two scales at itsends. The distance between the scales is 2.5 meters. The left scalereads 339 N and the right reads 171 N.
generator has a terminal voltage of 115 V when it delivers 18.0 A, alculate the emf (e m f) and the internal resistance (r) of the generator
a steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. the
a tourist being chased by an angry bear is running in a straight line toward his car at a speed of 3.33 ms. the car is
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