Find the largest possible radius of the
cell, in metres, if the ratio of surface
area to volu...
Mathematics, 20.09.2020 18:01, bullockarwen
Find the largest possible radius of the
cell, in metres, if the ratio of surface
area to volume must be greater than
955 000 (with the radius measured in
metres).
Answers: 2
Mathematics, 21.06.2019 14:10, donaldwilliams31
Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)
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