Mathematics, 28.09.2019 03:50 lucystudies
Part a: the sun produces 3.9 • 1033 ergs of radiant energy per second. how many ergs of radiant energy does the sun produce in 1.55 • 107 seconds? (5 points)
part b: which is the more reasonable measurement of the distance between the tracks on a cd:
1.6 • 10–3 mm or 1.6 • 103 mm? justify your answer.
Answers: 2
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
Mathematics, 22.06.2019 01:10
Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?
Answers: 1
Mathematics, 22.06.2019 01:30
Someone me! will award brainliest if u explain and answer!
Answers: 3
Part a: the sun produces 3.9 • 1033 ergs of radiant energy per second. how many ergs of radiant ene...
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