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A light beam with wavelength 440. nm in a material then enters air and its wavelength becomes 577. nm.
(a) What is the index of refraction for the material?
(b) At what angle with the surface will the beam be totally reflected back in the material?
A 2.20 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as heart beats. The reflected sound is after that mixed with the transmitted so..
A 9.8-kg object oscillates at the end of a vertical spring that has the spring constant of 1.75 104 N/m. The effect of air resistance is represented by the damping coefficient b = 3.00 N•s/m.
In a classic clip on America's Funniest Home Videos, a sleeping cat rolls gently off the top of a warm TV set. (Ignore air resistance and consider upward motion to be positive with zero at the top of the TV).
Two identical 30 {rm g} particles each carry 3 {rm mu C} of charge. One is held fixed, and the other is located 1 {rm mm} away and released. Find the speed of the moving charge when it's 1{rm cm} from the fixed charge.
A 15 ohm resistor is connected to the terminal of a 12 V battery, Sketch the circuit and Calculate the current in the circuit
Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 9.97 cubic meter of water in kg
A 250, 35-cm-diameter turntable rotates on frictionless bearings at 60. A 25 block sits at the center of the turntable. A compressed spring shoots the block thoroughly outward next to a frictionless groove in the surface of the turntable.
Consider a disk of radius R = 41.0 cm and thickness t = 1.1 cm, with a nonuniform volume charge density given by ? = A, If A = 510 ?C/m4, what is the total charge of this disk
Angular acceleration and angular displacement of the rotor using the equation of motion in rotational dynamics.
The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find out the final speed of puck A also Find out the final speed of puck B. m/s
Two overlapping beams of light of different wavelength ?a = 840 nm and ?b = 460 nm co-propagate through air, What is the angle between the beams travelling through the material
What is the highest compression of the spring for a perfectly inelastic impact.
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