Question related to the focal length of the mirror
A convex mirror in a department store generates an upright image 0.65 times the size of a person who is standing 220 cm from the mirror.
Determine the focal length of the mirror?
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One line in a helium spectrum is bright yellow and consists of the wavelength 596.2 nm. Determine the difference in energy (in eV) among the two helium levels which generate this line?
A rocket ship is around 80.0 m in length if measured before leaving the launching pad. Determine what would its velocity be when a ground observer measured its length as 60.0 m while it is in flight? (c = 3.00 x 10^8 m/s)
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Determine the south component of the momentum of electron? (kg • m/s)
A convex mirror in a department store generates an upright image 0.65 times the size of a person who is standing 220 cm from the mirror. Determine the focal length of the mirror?
The plane that can fly 100 miles an hour in still air can fly 500 miles with the wind that is blowing at the certain rate in 5/8 of time it would need to fly 500 miles against the wind blowing at same rate. Determine rate of wind?
The two stars are photographed employing a telescope having a circular aperture of diameter of 2.39 m and light having a wavelength of 545 nm. When both stars are 1022 m from us, determine their minimum separation so that we can recognize them as
Describe why the product of pressure and volume is constant in an isothermal process. Describe why the ratio of pressure and temperature is constant in an iso-volumetric method.
i) Sketch a schematic of the situation, representing direct illumination and the ground bounce. ii) Approximate the height of antenna which will cause highest power to be incident on the target.
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