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The energy of a particular state of an atom is 5.36 eV and the energy of another state is 3.45 eV. Find the wavelength of the light emitted when the atom makes a transition from one state to the other.
On a workday the average decibel level of a busy street is 69 dB, with 102 cars passing a given point every minute. If the number of cars is condensed to 39 cars every minute on a weekend, what is the decibel level of street.
The sun radiates energy like a black body. This allows astronomers to estimate. Which law allows Astronomers to calculate a star's surface temperature? The chemical makeup of the Sun's photosphere can be determined by studying it's? Why is a scientif..
Bowling balls are roughly the same size, but come in a variety of weights. Given its official circumference of roughly 27.4 inches, calculate the heaviest bowling ball
An arrow is shot at 30.0° above the horizontal. Its velocity is 49 m/s and it hits the target. What is the maximum height the arrow will attain?
you and maria each own identical spaceships. As you fly past maria, you measure her ship to be 89 m long and your own ship to be 100 m long. How fast is Maria moving relative to you
an electrically neutral morgan silver dollar is placed in a uniform electric field of magnitude e6.3e5 nc . the field
In a slow-pitch softball game, a 0.200-kg softball crosses the plate at 20.0 m/s at an angle of 40.0° below the horizontal. Determine the impulse delivered to the ball
Incident photons of energy 10.90 keV are Compton scattered, and the scattered beam is observed at 44.95° relative to the incident beam. What is the kinetic energy of the scattered electrons
27 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 21C in an insulated cup. What will the new water temperature be?
The initial length of a rod is (Lo). The length increases by 0.05%. To find the new length (L), you must multiply Lo by what, Calculate the temperature coefficient of linear expansion for this bar
An ideal gas is enclosed in a cylinder that has a moveable pistonon top. The piston has a mass of 3900 gand an area of 7.00 cm2 and isfree to slide up and down, keeping the pressure of the gasconstant. How much work is done on the gas as the temperat..
Find the escape speed using the Schwarzscfhild radius. Compare your answer to the speed of light and speculate on how these objects got the name ''black hole.''
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