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Red light (n=1.520) and violet light (n=1.538) traveling in air are incident on a slab of crown glass. Both colors enter the glass at the similar angle of refraction. The red light has an angle of incidence of 30.00 degrees. What is the angle of occurrence of the violet light?
A 3-kg mass has an acceleration of (4.0i - 3.0j )m/s^2. Onlytwo forces act on the mass. If one of the forces is ( 2.0i - 1.4j)N, what is the magnitude of the the other force ? Two blocks are accelerated across a horizontal frictionless surface . F..
Two resistanceless rails 32 cm apart rest on a 6.0° ramp. They are joined at the bottom by a 0.63 resistor, What is the terminal (steady) velocity of the bar as it slides frictionlessly down the rails
The drawing shows two wires that both carry the same current ofI = 66.1 A and are oriented perpendicular to the plane ofthe paper. The current in one wire is directed out of the paper, while the current in the other wire is directed into the paper..
n unmarked police car traveling a constant 95 km/h is passed by a speeder traveling 130 km/h. how much time passes before the police car overtake the speeder
A HeNe (Helium-Neon) laser has a beam power of 5.00 mW at a wavelength of 656 nm. Assume the beam is focused by a lens to a circular spot whose effective diameter is 15 wavelengths of the light.
it is desired that a solenoid 36cm long and with 430 turns produce a magnetic field within it equal to the earths
an electronic flash attachment for a camera produces a flash by using the energy stored in a 770 microf capacitor.
a ferris wheel has a radius of 11.0 m and rotates once every 11 s, what is the force of the chair seat on you
A vertical straight wire carrying an upward 21-A current exerts an attractive force per unit length of 8.3×10?4N/m, What is the magnitude of the current in the second wire
The classroom temperature is 20 C. The relative humidity is 60%. What is the total humidity (kg of H2O vapor) in the room if its volume is 200 m3.
An underwater scuba diver sees the sun at an apparent angle of 45.0 degrees above the horizontal. What is the actual elevation angle of the sun above the horizontal
1. how many kg of coal are used to supply 1500 watts to heat a barn for 7 hours? the energy content of coal is 19 x 106
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