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It is desired to construct a solenoid that will have a resistance of 6.00 (at 20°C) and produce a magnetic field of 4.00 10-2 T at its center when it carries a current of 4.80 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 10-8 ? · m.)
(a) the number of turns of wire needed to build the solenoid
_____ turns
(b) the length the solenoid should have
____ cm
When any radioactive dating method is used, experimental error in the measurement of the sample's activity leads to error in the estimated age. find the age of the fossils
Suppose you decide to take a trip in your car today. You start out and drive 32 miles in 20 minutes, What is your average speed for the entire trip including when you were parked
The string in a yo-yo is wound around an axle of radius 0.531 cm. The yo-yo has both rotational and translational motion, like a rolling object, What is the speed of the yo-yo when it reaches the distance of 1.42 m
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 5000N/C, Find the speed of the particle if it is a proton
A rock with mass m = 3.70 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 19.3 N and by a fluid resistance force.
A high-voltage transmission line with a resistance of 0.335 ?/km carries a current of 1.45 kA, What fraction of the transmitted power does this loss represent
Pool players often pride themselves on their ability to impart a large speed on a pool ball. At what speed did his pool ball hit the ground
A child sitting 1.06 m from the center of a merry-go-round moves with a speed of 1.35 m/s. Calculate the centripetal acceleration of the child
The acceleration of gravity is 9.81 m/s^2. Assuming that air resistance is simply a constant 96 N force on the person during the fall, identify the person's velocity just before hitting the net. Answer in units of m/s.
A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 670 nm. Determine the angle that locates the first dark fringe
Styrofoam has a density of 300 kg/m^3 . What is the maximum mass that can hang without sinking from a 20.0cm -diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere.
White light reflected at perpendicular incidence from a uniform soap film has an interference maximum at 480.0 nm, what is the film thickness
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