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On average, the electron and a proton in a hydrogen atom are separated by a distance of 5.30 x 10-11 m. assume the orbit of the electron to be circular with a constant speed of 2.20 x 106 m/s. What is the acceleration of the electron?
a baseball is thrown by the center fielder from shoulder level to home plate where it is caught on the fly at an equal
Light of wavelength 489 nm incident on a pair of slits produces an interference pattern on a distant screen in which the separation between adjacent bright fringes at the center of the pattern is 0.509 cm. What is the wavelength of the second sourc..
a pop up toy has a mass of 0.020 kg and has a constant of 150 N/M. Find speed of toy after spring isreleased and the toy accells past its equilibrium point
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 90.7 cm as its objective and a 11.5-cm focal length lens as its eyepiece
The blackbody radiation emitted from a furnace peaks at a wavelength of 3.0 10-6 m (0.0000030 m). What is the temperature inside the furnace
What is the magnitude of the angular acceleration of a 25.0 kg disk with a radius of 0.800 m when a torque of magnitude 40.0 N-m is applied to it
A copper wire has a resistance of 0.400 at 20.0°C, and an iron wire has a resistance of 0.430 at the same temperature
The human eye can detect light by an intensity as low as about10–9 W/m2. A typical large galaxy, such as our own Milky Way, radiates energy at the rate of about 4.*1036 W. What is the maximum distance from earth of a typical galaxy that can be seen w..
An example would be Otto Preminger's Anatomy of a Murder. It was filmed in 1959. The director was an Austrian born director named Otto Preminger. The score was provided by Duke Ellington. Etc.
A helicopter is flying horizontally at a speed of 294m/s over a hill that slopes upward with a 2 percent grade. What is the component of the helicopter's velocity perpendicular to the slope of the hill?
Find the symbols for degrees
Four point charges of magnitude 3.9 µC are at the corners of a square of side 3 m. Find the electrostatic potential energy if all the charges are negative
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