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Two double stars of the identical mass as the sun rotate about their common center of mass. Their separation is 4 light years. Evaluate what is their period of revolution?
A flash of light is emitted at position x1 on the x-axis and is absorbed at position x2=x1+d. In a reference frame moving with velocity v along the x-axis: What is the spatial separation d' between the point of emission and the point of absorption ..
A woman stands on a scale in a moving elevator. Her mass is 69.0 kg, and the combined mass of the elevator, What does the scale read (in N) during the acceleration
A space probe with a rest mass of 8.1×107kg and a speed of 0.50c smashes into an asteroid at rest and becomes embedded within it. what is the rest mass of the asteroid
A car with a total mass of 1.65*103 kg has wheels ofradius 35.0 cm and moment ofinertia 0.760 kg ·m2. Suppose that the wheels were then replaced byoversized wheels of the same shape and made of the same materials,but 49% wider and witha 49% larger..
A dentist uses a mirror to examine a tooth that is 0.75 cm in front of the mirror. The image of the tooth is formed 14.0 cm behind the mirror. Determine the magnification of the image
A 3.0x10 ² kg piano is being lifted at a steady speed from ground level straight up to an apartment 10 m above the ground. How much time does it take to lift the piano
the peak intensity of sunlight arriving at the upper atmosphere of the earth is around 1300wm2. the earth is situated
a sodium vapor light emits 10 w of light energy. its wavelength is 589 nm and it spreads in all directions. how many
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. Find the magnitudes of the net force acting on the electron
assume you have a perfectly isolated closed system under reversible and isothermal conditions where pv 0.8
An underdamped spring-mass system consists of a spring with a force constant of 2.00 N/m and a mass of 550 g. What is the value of the damping constant for the system
a Hydrogen atom is in the gound state. it absorbs some energy, leaving the atom in an excited state, calculate the wavelength of the second photon
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