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A glass lens (nglass = 1.52) has a 139 nm thick anti-reflective film (nfilm = 1.29) on one side. Light, moving through the air, is normally incident on the lens passing through the film. What is the largest wavelength of the light that is totally removed by the film?
A simple Atwood’s machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 8.4 m/s at the end of 7.2 s. At that time, the kinetic energy of the system is 62 J and each mass has moved a distance of 30..
A spaceship is observed by a stationary observer to be moving at .6 c. How fast does the laser beam travel relative to the observer
A solenoid of length 15 cm and radius 0.8 cm with 350 turns is in aexternal magnetic field of 400 T that makes an angle of50owith the axis of the solenoid. Find the magnetic fluxthrough the solenoid. Answer in units of mWb. My assignment gave methe e..
A car is traveling at 50 miles per hours. The driver sees a deer and hits the brakes. How far will it go
A person on earth notices a rocket approaching from the right at a speed of 0.81c and another rocket approaching from the left at 0.58c. What is the relative speed between the two rockets
The staples inside a stapler are kept in place by a springwith a relaxed length of 0.115 m. If the spring constant is 51.0N/m, how much elastic potential energy is stored in the spring
An astronaut tries to talk his way out of a traffic violation for running a red light (? = 670 nm) by telling the judge that the light appeared green (? = 540 nm) to him as he passed by in his expensive sports car. If this is true, how fast was the a..
About 1350 W/m2 of electromagnetic energy reaches the upper atmosphere of the earth from the sun, which is 1.5 × 1011 m away. estimate the average power output of the sun
The charge flowing through a light bulb attached to a 12.0-V battery in 14.0 s is 30.0 C. What is the average power supplied by the battery during this process
The image of a tree 10 m high and 20 m away is 1.5 cm high when photographed. What is the focal length of the lens in the camera
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 force stretching the D string on a certain guitar is 6400N. The string's linear mass density is 0.01kg/m. What is the speed of waves on the string?
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