# A spacecraft can attain a stable orbit 300 kilometers above Earth if it reaches a velocity of 7.7 kilometers per second. The formula for

4 answers

###### Question:

A spacecraft 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 v= -0.0098t + c In 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 25, an exhaust velocity of 2.9 km/s, and a firing time of 20 s. Can the spacecraft achieve a

stable orbit 300 km above Earth?

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 25, an exhaust velocity of 2.9 km/s, and a firing time of 20 s. Can the spacecraft achieve a

stable orbit 300 km above Earth?

## Answers

18.8 cubic inches.

step-by-step explanation:

volume of a cone = [tex]\frac{1}{3}[/tex]πr²h

r = 1.5 inches

h = 8 inches

pi = 3.14

volume of our cone = [tex]\frac{1}{3}[/tex] × 3.14 × 1.5² × 8 = 18.84 square inches

or equals to 18.8 square inches rounded up to nearest tenth.

volume of cone= 1/3 pi r^2 h

1/3 x 3.14 x 1.5^2 x 8

= 18.84 inches

c. (3,2,6) is the answer.

[tex]Asap 25 pts + brainliest to right/best answer[/tex]7for nonmembers i think

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