Physics, 28.02.2020 22:28 derisepicowe0fa
Absorbed energy is said to be quantized. This means: a) Energy is absorbed only by valence electrons. b) Energy causes electrons to be ejected from atoms. c) Energy is absorbed in exact amounts that correspond to differences in energy levels. d) The wavelength of energy absorbed and emitted must be the same. e) Electron promotion by UV/Visible radiation is possible.
Answers: 1
Physics, 21.06.2019 23:00
If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10
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Physics, 22.06.2019 16:00
Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
Physics, 22.06.2019 23:30
1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?
Answers: 3
Physics, 23.06.2019 14:30
When an orange rolls off a table, its potential energy is converted into?
Answers: 1
Absorbed energy is said to be quantized. This means: a) Energy is absorbed only by valence electrons...
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