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A movie camera with a (single) lens of focal length 85 mm takes a picture of a person standing 35 m away. If the person is 190 cm tall, what is the height of the image in millimeters on the film?
A .060-kg tennis ball, initially moving 5.50 m/s, has a head on collision with a .090-kg ball initially moving in the same direction, determine the Speed and direction of each ball after collision
A two-turn circular wire coil of radius 0.430 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.500 T. what is the average induced emf in the wire during this time
The Cosmic Background Radiation Outer space is filled with a sea of photons, created in the early moments of the universe. What is the peak frequency of this radiation
A total of 34 bright and 34 dark Newton's rings (not counting the dark spot at the center) are observed as 550 -nm light falls normally on a planoconvex lens resting on a flat glass surface. How much broad is the center than the edges.
An ice cube slides from rest without friction down a long inclined ramp that makes an angle of 20.0o with the horizontal. What is the speed of the cube
Racing drivers like to warm up the tyres of their car as soon as possible. One reason is that warm tyres grip the road better but the temperature also affects the pressure of the air into he tyres.
When violet light of wavelength 415 nm falls on a single slit, it creates a central diffraction peak that is 8.80 cm wide on a screen that is 2.50m away
In an RLC circuit, the following three elements are connected in series: a resistor of 45.0 ?, a 21.0-mH inductor, and a 0.450-µF capacitor. Find the power factor for the RLC series circuit
A block of mass m is suspended from the string a height h above the ground. The string is wrapped around a disk shaped pulley with mass m and radius R. Find out the tension T in the string. (The answer should be in terms of variables). Rotational ..
a chartered airplane flies 100 km east, then 350 km north west, and then 150 km at 30 degrees west of south. determine the direction of the last leg of the journey
A 20 times telescope has a 12{rm cm}diameter objective lens. What minimum diameter must the eyepiece lens have to collect all light rays from an on-axis distant source.
A 10.0g plastic ball is dropped from a height of 3.30m and is moving at 3.00m/s, How much mechanical energy was lost during the balls fall
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