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Rudiy27
3 years ago
9

Help me with this question plss!! :) ​

Physics
1 answer:
enot [183]3 years ago
5 0
52. It’s chemistry my dear^^^
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That is her mass, not her weight

Explanation:

Weight is mass times gravity, which on Earth is 9.8m/s^2

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PLS ANSWERRR What are the main differences between the carbon flows 300 years ago and today?
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In a single replacement reaction, what will a metal always replace?
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A car traveling in a straight line has a velocity of 5.0 m/s. After an acceleration of 0.75 m/s/s, the cars velocity is 8.0. In
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Vs - velocity on beginning
ve - velocity on ending. You've got:
v_s = 5 \frac{m}{s} \\ v_e=8 \frac{m}{s} \\ \hbox{Then:} \\ \Delta v=v_e - v_s = 8 \frac{m}{s} - 5\frac{m}{s}=3 \frac{m}{s} \\ a=0,75 \frac{m}{s^2} \\ \hbox{And from formula:} \\ a=\frac{\Delta v}{\Delta t} \qquad \Rightarrow \qquad  \Delta t= \frac{\Delta v}{a} \\ \hbox{Substitute:} \\ \Delta t=\frac{3\frac{m}{s}}{0,75 \frac{m}{s^2}}= \frac{3}{\frac{3}{4}} s= 3 \cdot \frac{4}{3} s= 4 s
So he needed  4 second. 

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3 years ago
How much energy is contained in the mass of a 60-kilogram person?
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<span>The energy in the body depends on the work and the type of food the person had in a 60 kg person / 40 kg person.
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Hope that helped!</span>
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