Mathematics, 24.06.2020 17:01, Cheyenne8694
a child throws a marble vertically upwards with an initial speed of 98m/s .Given that acceleration due to gravity is 9.8m/s^2 , determine how long it will take for the marble return to its initial position
Answers: 2
Mathematics, 21.06.2019 20:30, jtorres0520
Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?
Answers: 2
Mathematics, 21.06.2019 22:50, henryisasum7846
Jim had 15 minutes to do 5 laps around his school what would his time be
Answers: 1
Mathematics, 22.06.2019 00:00, xXwolfieplayzXx
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
a child throws a marble vertically upwards with an initial speed of 98m/s .Given that acceleration d...
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