Physics, 17.11.2021 17:20 lethycialee79711
1. Work = ………………x……………………….
2. ……………….energy is obtained from loudspeakers, while ………….is obtained from solar cells.
3. The energy produced from burning of wood is …………energy, while energy stored in a stretched spring is
……………… energy.
4. The factors that affect potential energy are …………….. and …………….
5. Mass is determined by…………unit, while the weight is determined by …………..unit.
Answers: 3
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An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.
Answers: 1
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Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?
Answers: 1
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Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine
Answers: 1
Physics, 22.06.2019 10:00
The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
1. Work = ………………x……………………….
2. ……………….energy is obtained from loudspeakers, while ………….is obtained...
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