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1. A converging lens has a focal length of f = 23 cm. An object is placed 44 cm from the lens. Find the size of the image in cm if the object has a height of 4 cm. Express the answer with one decimal place.
2. A converging lens has a focal length of f = 24 cm. If an object is placed 38 cm from the lens, where will the image be formed?
Express the answer (in cm) with one decimal place.
The work function of an element is 3.2 eV. Photons of a certain energy are found to eject electrons with a kinetic energy of 2 eV. What is the speed of the ejected electrons
questioncora lies in a tanning bed getting a tan. suppose that as 0.79 m2 of her skin is exposed to the light from the
A 5.01E+4 kg space probe is traveling at a speed of 12600 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed, What is the final speed of the probe?
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A race car starts from rest on a circular track of radius 339 m. The car's speed increases at the constant rate of 0.440 m/s2. estimate the speed of the race car
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