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Author Question: Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume ... (Read 421 times)

tuffie

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on: Aug 1, 2020

Question 1

An exam paper contains the following equation for rocket propulsion:

     .


The error in the equation is that, instead of (v + ve), the velocity of the fuel relative to the ground should be

◦
−ve.

◦
+ve.

◦
v−ve.

◦
ve−v.

◦
2ve.


Question 2

Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume that they all gather in one place and climb to the top of 2 m high ladders. The center of mass of the Earth (mE = 5.90 1024 kg) is then displaced

◦
0 m.

◦
1.84 × 10−23 m.

◦
1.84 × 10−14 m.

◦
1.80 × 10−13 m.

◦
2 m.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by tuffie on Aug 1, 2020

chinwesucks

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Reply #1 on: Aug 1, 2020
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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Tobi Adenugba

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Reply #2 on: Nov 23, 2021
Thank you


Tobi Adenugba

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Reply #3 on: Nov 24, 2021
Thank you


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