A laser emits a narrow beam of light the radius of the beam
A laser emits a narrow beam of light. The radius of the beam is 3.9 mm, and the power is 3.6 mW. What is the intensity of the laser beam?
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a cylinder with a piston is filled with ideal gas the gas temperature is held at 500k the cylinder is heated by an oven
the earth has a surface temperature around 270 k and an emissivity of 08 while space has a temperature of around 2 k
a sound wave with intensity 22 10-3 wm2 is perceived to be modestly loud your eardrum is 67 mm in diameter how much
a laser emits a narrow beam of light the radius of the beam is 39 mm and the power is 36 mw what is the intensity of
a distant galaxy emits light that has a wavelength of 4998 nm on earth the wavelength of this light is measured to be
the electric field in a velocity selector is generated by two parallel plates separated by 500 cm with a potential
a circular wire loop of radius 0170 m carries a current of 900 ma and is placed in a 500 mt magnetic field as the
a long solenoid has 1580 turns in a length of 400 cm what current has to flow through the solenoid in order to generate
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