Two tennis balls and one cube weigh 152 g. one tennis ball and one cube weigh 96g. all three tennis balls weigh the same, and both cubes weigh the same. what is the weigh of one cube?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

What is fraction that is equivalent to 3/8

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?