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Author Question: At lift-off, a rocket weighs 40.7 tonnes, including the weight of fuel. It is fired vertically, and ... (Read 59 times)

jhjkgdfhk

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on: Oct 21, 2019
At lift-off, a rocket weighs 40.7 tonnes, including the weight of fuel.  It is fired vertically, and the fuel is consumed at the rate of 2.90 tonnes per 1,000 m of ascent.  How much work is done in lifting the rocket to an altitude of 14,000 m?
◦ 8.54 × 105 m∙tonne
◦ 4.28 × 105 m∙tonne
◦ 3.80 × 105 m∙tonne
◦ 2.86 × 105 m∙tonne
Basic Technical Mathematics with Calculus ¦ Washington ¦ 10th Edition
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Marked as best answer by jhjkgdfhk on Oct 21, 2019

miss.ashley

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Reply #1 on: Oct 21, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jhjkgdfhk

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Reply 2 on: Oct 21, 2019
Thanks for the timely response, appreciate it

xiaomengxian

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Reply 3 on: Yesterday
Wow, this really help

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