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An early model of the hydrogen atom viewed it as an electron orbiting a proton in a circular path with a radius of 5.29×10?11m.
What would be the speed of the electron in this model? You'll need some information from Appendix E in the textbook, and may need to review Chapter 6 on circular motion.
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
Four identical charges (+1.7 %u03BCC each) are brought from infinity, compute the electric potential energy of this group
A certain red giant star has a luminosity of 100,000 times that of the Sun and is located 600 light-years from Earth. calculate the rate of interstellar extinction in the direction of the star
A 20 kg satellite has a circular orbit with a period of 2.4 h and a radius of 8.0 Ã- 106 m around a planet of unknown mass. what is the radius of the planet
A point charge Q = 8.50×10-6 C is at the center of a conducting spherical shell of radius R = 17.90 cm. What is the field just outside the shell
An element in its solid phase forms a cubic crystal lattice with mass density 7950 kg/m^3. What is the element's atomic mass number
A diver 22m deep in 12°C fresh water exhales a 0.8 cm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 25°C? Hint: suppose that the air bubble is always in thermal equilibriu..
if you decrease the hanging mass by a factor of four( 0.55 kg/4) but keep the linear mass density the same, by what factor does the fundamental frequency change
A loaded ore car has a mass of 935 kg and rolls on rails with negligible friction. What maximum power must the winch motor provide
A long rod of lenght " L " and cross sectional area "A" is weighted such that when it is placed in a bucket of water it floats vertically. determine the magnitude of the buoyant force on the rod
What is the difference between the acceleration of his head and feet if the astronaut is 2.00 m tall.
A bomb is dropped from an airplane in level flight at a speed of 970 km/h. The altitude of the aircraft is 2000 m. At what horizontal distance from the initial position of the aircraft will the bomb land.
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