Physics, 29.10.2019 02:31, jesseniaindiaaoyr75n
Whag is the wavelength of an earthquake wave if it has a speed of 4km/s and a frequency of 7 hz?
Answers: 2
Physics, 23.06.2019 09:30, asapjvzz8786
Lake happy times contains 100 km3 of pure water. it is fed by a river at a rate of 50 km3/yr. at time zero, there is a factory on one shore of lake happy times that begins introducing a pollutant to the lake at a rate of 2km3/yr. there is another river that is fed by lake happy times at a rate that keeps the volume of lake happy times constant. this means that the rate of flow from lake happy times into the outlet river is 52km3/yr. in turn, the flow from this outlet river goes into another lake, lake sad times, at an equal rate. finally, there is an outlet river from lake sad times flowing at a rate that keeps the volume of lake sad times at a constant 100 km3 . (a) find the amount of pollutant in lake sad times at the end of 3 months. (b) at the end of 3 months, observers close the factory due to environmental concerns and no further pollu- tant enters lake happy times. how long will it take for the pollutant in lake sad times (found in part (a)) to be cut in half?
Answers: 3
Physics, 23.06.2019 12:00, natalie2sheffield
Calculate the speed of segment c. (science question)1.7 m/s .4 m/s*.6 m/s 2.3 m/s
Answers: 1
Physics, 23.06.2019 14:00, ariellake8551
Write the formula for average velocity a car travels a distance of 50 km in 5 hours and returns travelling the same distance in 6 hours calculate the average velocity of the car
Answers: 2
Whag is the wavelength of an earthquake wave if it has a speed of 4km/s and a frequency of 7 hz?...
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