Help please !!Which property of a wave is labeled on the diagram?
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Physics, 21.06.2019 18:10
Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.
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Physics, 21.06.2019 23:00
For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.
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Physics, 22.06.2019 16:00
At what time will the interfering waves have an amplitudeof zero?
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Physics, 22.06.2019 17:00
Explain what will happen if decomposers were apsent from a forest ecoysystem.
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Social Studies, 29.06.2019 13:00
Mathematics, 29.06.2019 13:00
Health, 29.06.2019 13:00
Physics, 29.06.2019 13:00
Social Studies, 29.06.2019 13:00
Health, 29.06.2019 13:00
Mathematics, 29.06.2019 13:00
Social Studies, 29.06.2019 13:00
Biology, 29.06.2019 13:00
Mathematics, 29.06.2019 13:00