Physics, 19.07.2021 18:40 josuemarquezz27
A low-power laser used in a physics lab might have a power of 0.50 mW and a beam diameter of 3.0 mm. Calculate:a. The average light intensity of the laser beam. b. The intensity of a lightbulb producing 100-W light viewed from 2.0 m. c.Compare the intensity of the laser to the intensity of the lightbulb. Is it advisable to look directly at a laser
Answers: 2
Physics, 21.06.2019 23:30
Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?
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Physics, 22.06.2019 14:30
70 give a real life example showing how sensory neurons work with the motor neurons
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Physics, 22.06.2019 19:30
Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 23:30
Using a caesar cypher with an offset of three characters (a -> d, b -> e, z -> c), what would be the correct cypher text for the plain text "attack at dawn"?
Answers: 1
A low-power laser used in a physics lab might have a power of 0.50 mW and a beam diameter of 3.0 mm....
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