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PART A. What is the minimum soap-film thickness (n = 1.33) in air that will produce constructive interference in reflection for red (? = 644nm ) light?
PART B. Which visible wavelengths will destructively interfere when reflected from this film? (Essay answers are limited to about 500 words (3800 characters maximum, including spaces).
What is the speed of a car going v = 1mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately. mke Use of the facts that 1 mile = 1609m and 1hour = 3600s.
How many electrons are transferred. What is the smallest thickness of a soap film that would appear black if illuminated with 490 light? imagine there is air on both sides of the soap film.
A 64 kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.15. What would be the magnitude of acceleration.
If the string is 9.5 m long, has a mass of 45 g and is pulled taut with the tension of 8.0 N, how much time does it take for a wave to travel from one end of the string to the other.
The current in a solenoid with 21 turns per centimeter is 0.45A, Find the magnitude of the net magnetic field a radial distance of 0.70 cm from the straight wire.
A 1.3 m length of wire carrying 5.9 A of current toward the south is oriented horizontally. Estimate the magnitude of the magnetic force on the wire due to the Earth's magnetic field of 5.5 ? 10-5 T at this point
The electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 15 cm and outer radius 31 cm has magnitude 465 N/C and is directed outward.
A tourist takes a picture of a mountain 14 km away using a camera that has a lens with a focal length of 50 mm, What is the ratio of the height of the mountain's image on the camera's image
Find the force on each side of the loop and the torque acting on loop.
Determine the same situation, but now let the initial speed v0 of the first ball be given and treat the height h of the building as an unknown. What should the height of the building be for both balls to reach the ground at the same time for v0= 8..
A baseball is thrown horizontally at a speed of 43 m/s. When it reaches home plate, what is the horizontal component of its velocity
then collides with a spring whose spring constant is 250 N/m. angle is 30 degrees. Illustrate what is the maximum compression of the spring?
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