Physics, 30.01.2020 03:51 19thomasar
How did the appearance of the smallest creatures, such as the microbes and bacteria, in earth's early history impact the geosphere?
a)
formation of rocks
b)
enriching the soil
c)
decreased moisture
d)
caused land erosion
Answers: 1
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Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?
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To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.
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Answers: 1
How did the appearance of the smallest creatures, such as the microbes and bacteria, in earth's earl...
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