An astronaut of mass 230 kg including his suit and jet pack wants to acquire a velocity of 2.2 m/s to move back toward his space shuttle. Part A Assuming the jet pack can eject gas with a velocity of 37 m/s, what mass of gas will need to be ejected? Express your answer to two significant figures and include the appropriate units. m= Submit НА Value 1 Request Answer < Return to Assignment → Units Provide Feedback ?

An astronaut of mass 230 kg including his suit and jet pack wants to acquire a velocity of 2.2 m/s to move back toward his space shuttle. Part A Assuming the jet pack can eject gas with a velocity of 37 m/s, what mass of gas will need to be ejected? Express your answer to two significant figures and include the appropriate units. m= Submit НА Value 1 Request Answer < Return to Assignment → Units Provide Feedback ?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 9.10CYU: Check Your Understanding Notice that the mass of the air in the tank was neglected in the analysis...

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1. An electric rocket is to be designed to provide a Aub of 5.7 km/s. Given that the "burn" time is 3 months, and (an) is 10 kg/kW, calculate the optimum specific impulse, and the corresponding (ML/Mo). Show table of values of (ML/Mo) and Isp that supports your conclusion and highlight the necessary information in it. It is sufficient to provide the portion of the table around the highlighted region. {Ans.: 3700s, 0.7316}
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