Abeam of light with a frequency range from 3.01 × 10 14 hz to 6.10 × 10 14 hz is incident on a metal surface. if the work function of the metal surface is 2.20 ev, what is the maximum kinetic energy of photoelectrons ejected from this surface? ( h = 6.626 × 10 -34 j ∙ s, 1 ev = 1.60 × 10 -19 j)
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If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .
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Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.
Answers: 1
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Emergent properties of living systems are defined as properties that .
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Physics, 23.06.2019 03:50
Acar driving 22.7 m/s on flat ground drives off a 42.3 m high cliff. how much time does it take to reach the ground?
Answers: 1
Abeam of light with a frequency range from 3.01 × 10 14 hz to 6.10 × 10 14 hz is incident on a metal...
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