Mathematics, 14.02.2020 18:26 bellad05
To illustrate the use of a multistage rocket consider the following: (a) A certain rocket carries 60% of its initial mass as fuel. (That is, the mass of fuel is
0.6mo)
What is the rocket's final speed, accelerating from rest in free space, if it burns all its fuel in a single stage? Express your answer as a multiple of
vex.
(b) Suppose instead it burns the fuel in two stages as follows: In the first stage it burns a mass
0.3mo
of fuel. It then jettisons the first-stage fuel tank, which has a mass of
0.1mo
, and then burns the remaining
0.3mo
of fuel. Find the final speed in this case, assuming the same value of
vex
throughout and compare.
Answers: 2
Mathematics, 21.06.2019 15:00
Idon’t understand this.. will someone ? will mark brainliest along with 20 points.
Answers: 2
Mathematics, 21.06.2019 20:10
A. use the formula for continuous compounding with the original example: $1000 invested at 2% for 1 year. record the amount to 5 decimal places. use a calculator. b. compare it to the result using the original compound interest formula with n = 365 calculated to 5 decimal places. which has a larger value? explain.
Answers: 1
Mathematics, 21.06.2019 21:30
Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50
Answers: 3
Mathematics, 21.06.2019 22:30
Which of the following graphs could represent a quartic function?
Answers: 1
To illustrate the use of a multistage rocket consider the following: (a) A certain rocket carries 60...
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