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Question: A ray of light traveling in air is incident on the surface of a block of clear ice (of index 1.309) at an angle of 24.7 ? with the normal. Part of the light is re?ected and part is refracted. Find the angle between the reflected and the refracted light.
A 1140- car is held in place by a light cable on a very smooth (frictionless) ramp, How hard does the surface of the ramp push on the car
The odometer (mileage gauge) of a car tells you the number of miles you have driven, A typical midsize car has tires 24.0 inches in diameter. How many revolutions of the wheels must the odometer count in order to show a mileage of 0.100 mile
A beam contains 3.0 x 106 doubly charged positive ionsper cubic centimeter, all of which are moving north with a speed of5.4 x 105 m/s. What is the magnitude of the currentdensity?
A car with a total mass of 1.92*10^3 kg has wheels of radius 31.0 cm and moment of inertia 0.830 kg · m2. What is the car's translational kinetic and rotational energy
A hollow spherical shell has mass 7.85kg and radius 0.220m. What is the kinetic energy of the shell after it has turned through 7.00rev
A manchine part has the shape of a uniform sphere of mass 225g and diametere 3.00cm. It is spinning about a frictionless axle through its center, how long will the part spin until it stops
A nearsighted person cannot see objects clearly beyond 30cm (the far point). what is the power of the lens (in diopters required to correct the patient's vision
Ocean waves (on a particularly nice summer day) move past at 1.8 waves/s. find the speed of the waves
A 528 Hz sound wave travels through a substance. What is the speed of sound in the substance
Unpolarized light with an intensity of 875 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
You ionize a hydrogen atom with a photon with wavelength 77.5nm. What orbital was the electron in before ejection
What is the frequency of the note played by this pipe.
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