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When monochromatic light shines vertically on a soap film (n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of the reflected light is observed is 296nm. What is the vacuum wavelength of the light in nanometres?
Abullet emerges from the muzzle of a gun with a velocity of 300m/s. The net force on the bullet, while it is in the gun barrel, is given by: F(t): =400N-(1.33*10^5N/S)t and is directed along the length of the barre
A spherical concave lens has a focal length of 20cm, and an object is placed 15cm from the lens. estimate of the image distance and give image characteristics
A particle having charge q = +2.30 µC and mass m = 0.0100 kg is connected to a string that is L = 1.80 m long, Determine the speed of the particle when the string is parallel to the electric field
tired of walking down the stairs a 75 kg engineering student designs an ingenious device for reaching his third floor
A 20 kg satellite has a circular orbit with a period of 2.3 h and a radius of 6.5 106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 7.6 m/s2, what is the radius of the planet?
The drawing shows a collision between two pucks on an air-hockeytable. Puck A has a mass of 0.030 kg and is moving along thex axis with a velocity of +5.5 m/s. It makes a collisionwith puck B, which has a mass of 0.065 kg and is initially at rest.
A person fishing from a pier observes that five wave crests pass by in 7.4 s and estimates the distance between two successive crests to be 4.3 m. The timing starts with the first crest and ends with the fifth. What is the speed of the wave? m/s
A student drops two metallic objects into a 120 g steel container holding 150 g of water at 25°C. What is the mass of the aluminum chunk
A compound microscope has a tube that is 19.50 cm long. The focus of the eyepiece is 1.5 cm and the focus of the objective is 0.6 cm . If the distance for normal vision is 25 cm ,what is the approximate magnification of the microscope?
Find the magnitude of the electron acceleration. Under an influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt.
In this week's video, Bill Goodykoontz talks about morality and ethics in pop culture. The freedom of speech and expression allows the variety of pop culture media to be released, which may sometimes be offensive material. Can pop culture still have ..
What types of lifestyle changes will be brought about by living in a house whose space heating and hot water needs are supplied almost completely by the sun.
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