Mathematics, 27.09.2019 19:30 SunsetPrincess
In a certain country, the heights and depths of a road are measured in relation to sea level. sea level has a value of 0. the lowest point of the country lies at −7 feet. the highest point of the country lies at +112 feet. which of the following statements best describes the lowest and the highest points? the lowest point is 7 feet above sea level, and the highest point is 112 feet below the lowest point. the lowest point is 7 feet below sea level, and the highest point is 112 feet above the lowest point. the lowest point is 7 feet above sea level, and the highest point is 112 feet below sea level. the lowest point is 7 feet below sea level, and the highest point is 112 feet above sea level.
Answers: 1
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
Mathematics, 22.06.2019 02:00, 4presidents
Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length
Answers: 1
In a certain country, the heights and depths of a road are measured in relation to sea level. sea le...
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