subject
Physics, 09.09.2019 23:30 alyssa337

Arocket accelerates by burning its onboard fuel, so its mass decreases with time. suppose the initial mass of the rocket at liftoff (including its fuel) is m, the fuel is consumed at rate r, and the exhaust gases are ejected with constant velocity ve (relative to the rocket). a model for the velocity of the rocket at time t is given by the equation v(t) = −gt − ve ln m − rt m where g is the acceleration due to gravity and t is not too large. if g = 9.8 m/s2, m = 29,000 kg, r = 140 kg/s, and ve = 2,800 m/s, find the height of the rocket one minute after liftoff. (round your answer to the nearest whole meter.)

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 05:30
The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .
Answers: 3
question
Physics, 22.06.2019 09:00
One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form
Answers: 1
question
Physics, 22.06.2019 13:40
Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.
Answers: 1
question
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d
Answers: 2
You know the right answer?
Arocket accelerates by burning its onboard fuel, so its mass decreases with time. suppose the initia...
Questions
question
Mathematics, 02.11.2020 07:30
question
Business, 02.11.2020 07:30
question
Biology, 02.11.2020 07:30
question
Mathematics, 02.11.2020 07:30
Questions on the website: 13722367