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Objects A and B are both positively charged. Both have a mass of 118 g, but A has twice the charge of B. When A and B are placed 10 cm apart, B experiences an electric force of 0.48 N.
(a) How large is the force on A?
(b) What are the charges qA and qB?
(c) If the objects are released, what is the initial acceleration of A?
A small fly of mass 0.27 grams is caught in a spider's web. The web vibrates predominately with a frequency of 4.50 Hertz. What is the value of the effective spring constant stiffness constant for the web.
In beta decay, a neutron decays into a proton, an electron, and a neutrino, What is the maximum energy that the electron can have? The neutrino?
One runner ran the 100-m dash in 11.9 s. Another runner came in secona at 12.4 s. determine the sepaaration between the two runners
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A photon with energy 1.85 eV is absorbed by a hydrogen atom. Find the speed of the electron released from the state in part (a) when it is far from the nucleus
Use the Rydberg equation to calculate the wavelength in nm of the light emitted, What is the color of the light emitted
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 29.0 degrees. what is his speed as he leaves the roof
explain the separation between the two sources. What is the displacement of the car between 3 P.M. and 6 P.M.
What would be the equilibrium temperature when a 271 g block of copper at 280°C is placed in a 169 g aluminum calorimeter cup containing 817 g of water at 11.5°C.
A loudspeaker of mass 22 {rm kg} is suspended a distance of h = 2 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
A 230g baseball is pitched at 42m/s spinning at 40rad/s . You can treat the baseball as a uniform solid sphere of radius 4.0cm
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 8.00km below the surface. What's the water pressure at that depth? Find the fractional volume change in the spoon due to compression forces.
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