Physics, 12.03.2020 02:31 hardwick744
A certain type of film requires an exposure time of 0.013 s with an f /1.8 lens setting. Another type of film requires twice the light energy to produce the same level of exposure. What f - stop does the second type of film need with the 0.013 s exposure time? (Common f - stops are 1, 1.2, 1.4, 1.8, 2, 4, 8, 11)
Answers: 3
Physics, 22.06.2019 05:20
Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.
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Physics, 22.06.2019 08:30
Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?
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The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
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A certain type of film requires an exposure time of 0.013 s with an f /1.8 lens setting. Another typ...
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