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A solenoid is wound with a single layer of insulated copperwire of diameter 2.500 mm and has a diameter of 5.000cm and is 1.800 m long. Assume that adjacent wirestouch and that insulation thickness is negligible.
a) How many turns are on the solenoid?
b) What is the inductance per meter (H/m) for thesolenoid near its center?
A telescope consists of a mirror with radius of curvature 6.5 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 114, what focal length eyepiece should he use?
The refrigerator is pushed in the horizontal direction halfway between the floor and the top of the refrigerator and the refrigerator does not tip over while being pushed.
A uniform disk of mass 7.00m and radius 7.00r can rotate freely about its fixed center like a merry-go-round, What is the ratio K/K0 of the new kinetic energy of the two-disk system to the system's initial kinetic energy
A concave mirror is to form an image of the filament of a headlight lamp on a screen 8.00m from the mirror. To what radius of curvature should you grind the mirror
Discover new angles with respect to the x-axis
The activation energy for vacancies in Cu is w.28 eV. Find the fractional number of vacancies at the melting temperature. Estimate the contribution of vacancies to the thermal expansion at the melting temperature.
A standing wave is oscillating at 140 Hz on a string, as shown in the figure. What is the speed of traveling waves on this string
Sam, whose mass is 71.0kg , takes off down a 45.0m high, 8.00? slope on his jet-powered skis. What is the coefficient of kinetic friction of his skis on snow
A roller coaster car of mass 250 kg has a speed of v0 = 12 m s-1 at point A, located at a height of h = 15 m. Find the speed of the car when it reaches point B. Use energy ideas
Natural gold has only one isotope: If gold is bombarded with slow neutrons, particles are emitted. (a) Write the appropriate reaction equation. (b) Calculate the maximum energy of the emitted beta particles.
A projectile is fired straight upward from the Earth's surface at the South Pole with an initial speed equal to one third the escape speed. What is the altitude of the projectile at this instant
The pulmonary artery, which connects the heart to the lungs,has an inner radius of 2.8 mm and is8.2 cm long. what is the average speed of blood in the pulmonary artery
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