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Light visible to humans consists of electromagnetic waves with wavelengths (in air) in the range 400-700 nm (4.0 10-7 m to 7.0 10-7 m). The speed of light in air is 3.0 108 m/s. What are the frequencies of electromagnetic waves that are visible? (Enter your answers from smallest to largest.)
A rod is 2.40 m long and has a diameter of 2.50 mm. What is the Young's modulus for this rod
A 1200 turn coil of wire that is 3.00 cm in diameter is in a magnetic field that drops from 0.750 T to 0 T in 15.0 ms. What is the induced emf in the coil
a rock is thrown downward from the top of a 40 m tower with an initial speed of 12 m/s. if g-9.8 m/s^2, what is the speed of the rock just before hitting the ground
The winner of the competition wants to know if he has broken the world record for the break shot of 32mph (about 14.3m/s). The ball landed a distance 5.15m away from the table edge, calculate his break shot speed. At what speed did his pool shot h..
Find the distance between the centers of the spheres.
A point like charge of +20nC sits at the center of a thick spherical shell of inner radius 4cm and the outer radius 6cm. The shell is made of copper and has a net charge of -10nC. Describe the distribution of charge on the conductor
The highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15.2 cm (6 in.) long. What is the period of rotation of the rod
A telephoto lens with focal length of 120mm has f-numbers ranging from f/2.8 to f/22, What is the diameter of the lens aperture at f/2.8? in millimeters
A 0.900m -diameter vat of liquid is 2.60m deep. The pressure at the bottom of the vat is 1.40atm
An airplane pilot wishes to fly due west. A wind of 80.0is blowing toward the south. What is the speed of the plane over the ground
The diameter of our disk-shaped galaxy, the Milky Way, is about 1.0 105 lightyears (ly). find the distance between the centers of the two plates
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall. what is the magnitude of the horizontal component of force produced by the wall
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