Physics, 29.06.2019 16:00 Robinlynn228
An object is situated to the left of a lens. a ray of light from the object is close to and parallel to the principal axis of the lens. the ray passes through the lens. which one of the following statements is true? (a) the ray crosses the principal axis at a distance from the lens equal to twice the focal length, no matter whether the lens is converging or diverging. (b) the ray passes through the lens without changing direction, no matter whether the lens is converging or diverging. (c) the ray passes through a focal point of the lens, no matter whether the lens is converging or diverging. (d) the ray passes through a focal point of the lens only if the lens is a diverging lens. (e) the ray passes through a focal point of the lens only if the lens is a converging lens.
Answers: 1
Physics, 22.06.2019 06:40
How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.
Answers: 1
Physics, 22.06.2019 10:20
Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
Answers: 2
Physics, 22.06.2019 17:00
Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.
Answers: 3
Physics, 22.06.2019 21:50
To fully describe the photoelectric effect, scientists must consider which of the following to be quantized? o a. both light and matter o b. matter only o c. light only o d. neither light nor matter
Answers: 2
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