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A camera with a telephoto lens of focal length 125 nm is used to take a photograph of a plant 1.8 m tall. The plant is 5.0 m from the lens.
A. What must be the distance between the lens and the camera film if the image is sharply focused?
B. How tall is the image?
A ring of charge is centered at the origin in the vertical direction, Find the total electric field, E, of the ring at the point P = (2.25 m, 0.00 m)
One of the harmonic frequencies of tube A with two open ends is 1020 Hz. The next-highest harmonic frequency is 1088 Hz. What is the number of this next-highest harmonic
A 50.0 g copper calorimeter contains 200 g of water at 20.0°C. How much steam must be condensed into the water if the final temperature of the system
Helium-Neon laser: "Lambda"= 632.8nm. We can observe the first order maximum at "theta"= 25 degrees. What is the second order maximum angle
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. What is the final angular velocity of the top when the string is completely unwound
Suppose a soccer player kicks the ball from a distance 21.5 m toward the goal. Find the initial speed of the ball
Your roommate is working on his bicycle and has the bike upside down. He spins the 70.0cm -diameter wheel, What is the pebble's acceleration
Establish the speed of transverse waves on a string under a tension of 80.0 N if the string has a length of 2 m and a mass of 5 g. (b) Calculate the power required to create these waves if they have a wavelength of 16 cm and an amplitude of 4 cm.
The technique known as potassium-argon dating is used to date old lava flows and thus any fossilized skeletons found in them, What is the age of a piece of solidified lava with a 40Ar/40K ratio of 0.34
A slide projector needs to create a 86 cm high image of a 2.0 cm tall slide, What focal length does the lens need and How far should you place the lens from the slide
A child on a swing of length R= 2 meters is given an initial velocity v=8.9 m/s. Calculate the height from the bottom when the cord just goes slack, and the child leaves the circular path
You send a beam of light from a material with index of refraction 1.19 into an unkown material. In order to help identify this material, What is the index of refraction of the unknown material
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