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An astronomical telescope uses an eyepiece of power +80.000 D. If the length of the tube is 2.0125m, what is the magnification of the telescope?
A diving board oscillates with simple harmonic motion of frequency 2.10 cycles per second what is the highest amplitude with which the end of the board can vibrate in order that a pebble placed there would not lose contact with the board all throu..
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW, Find the peak electric field strength
A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 1.55 hours. What is density of the planet
Two violin strings are tuned to the same frequency, 294Hz, What will be the beat frequency heard when the two strings are played together
A father (m = 70 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast will the father be moving.
You have a lens whose focal length is 12.7 cm. You place an object on the axis of the lens at a distance of 6.25 cm from it. How far is the object\'s image from the lens
what the effects of electronic games on children - What were pros and cons of the research method(s) that was/were used and was the topic significant and relevant to education? Why/why not?
Strictly speaking, as more and more skyscrapers are being built on surface of earth, does the day tend to become longer or shorter.
Discuss how big is a physical protocol data unit and determine the number of simultaneous transmissions for many network architectures.
The distance between two successive minima of a transverse wave is 2.45 m. Five crests of the wave pass a given point along the direction of travel every 14.5 s. (a) Find the frequency of the wave. Hz (b) Find the wave speed. m/s
A certain laser emits light in a narrow band of wavelengths centered at 632.7 nm and with a ''wavelength width'', What is the corresponding ''frequency width'' in hertz for the emission
If, instead, the gold is drawn out into a cylindrical fiber of radius 1.5µm, what is the length of fiber.
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