Mathematics, 05.09.2019 17:10, acharity196
Acompany that sells home and kitchen products online is tracking the number of visitors on their website overnight to determine the best time to perform site maintenance. the company found that there are approximately 1,000 visitors at both 9 p. m. and at 9 a. m. the minimum number of visitors on their website between these hours is 200.
Answers: 3
Mathematics, 22.06.2019 00:00, nshadow2920
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
Acompany that sells home and kitchen products online is tracking the number of visitors on their web...
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