Physics, 03.12.2021 19:40 shelbiec5355
To determine how the expansion rate of the universe has changed over time, astronomers directly measure the for a sample of Type Ia supernovae in distant galaxies.
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Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
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Physics, 22.06.2019 19:50
An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)
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Physics, 23.06.2019 01:30
Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.
Answers: 1
To determine how the expansion rate of the universe has changed over time, astronomers directly meas...
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