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A container holds a gas consisting of 1.05 moles of oxygenmolecules. One in a million of these molecules has lost a singleelectron. What is the net charge of the gas?
A coin with a diameter of 3 cm is dropped onto a horizontal surface. The coin starts out with an initial angular speed of 27.8 rad/s, How far does the coin roll before coming to rest
a hummingbird hovers 4.00cm from the surface of a decorative stainless-steel sphere that sits on a pedestal in a garden. make a sketch of the optical system
A water molecule floating in the air loses one electron, becoming an ion, What is the magnitude of the electric force between the electron and the water ion
A 69-g firecracker is at rest at the origin when it explodes into three pieces. Find the velocity of the third piece
A string of length L, which is clamped at both ends and has a tension T, is pulled aside a distance h at its center and released
-Chlorine-35 has a mass of 34.97 amu, and makes up 75.53 % of all chlorine atoms, and Chlorine-37 has a mass of 36.95 amu, Determine the atomic mass of the chlorine atom
A compound microscope has objective and eyepiece focal lengths of 6.0mm and 1.7cm , respectively. If the lenses are 8.5 apart, what is the magnification of the instrument?
At what distance along the central axis of a uniformly chargedplastic disk of radius R = 1.40 m is themagnitude of the electric field equal to 1/9 times the magnitude of the field at the center of the surface of the disk?
A 25.1-mW laser beam of diameter 2.15 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
You stand with your nose 5.0cm from the surface of a reflecting ball, and your nose's image appears three-quarters full size. What is the balls diameter?
Reluctant diver Dave is hanging by his fingertips at the high-dive board, a distance of 8m from the water. His friend pries his fingers from the board, How long does it take Dave to reach the water
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.55 10^4 m/s, and the radius of the orbit is 5.50 10^6 m. What is the orbital speed of the second satellite
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