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Daniel [21]
3 years ago
14

HELPPPP!!!!

Physics
2 answers:
Dafna1 [17]3 years ago
7 0

Answer:

Carbon: 1

Oxygen: 2

Explanation:

Carbon dioxide, or CO₂, has 1 carbon atom and 2 oxygen atoms per mole.

IRINA_888 [86]3 years ago
5 0
Carbon 1 Oxygen 2! Hope this helps
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mu = 0.56

Explanation:

The friction force is calculated by taking into account the deceleration of the car in 25m. This can be calculated by using the following formula:

v^2=v_0^2+2ax\\

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    = 60(1000m)/(3600s) = 16.66m/s

x: distance = 25m

BY doing a the subject of the formula and replace the values of v, v_o and x you obtain:

a=\frac{v^2-v_o^2}{2x}=\frac{0m^2/s^2-(16.66m/s)^2}{2(25m)}=-5.55\frac{m}{s^2}

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Furthermore, you use the relation between the friction force and the friction coefficient:

F_f= \mu N=\mu mg\\\\\mu=\frac{F_f}{mg}=\frac{8271.15N}{(1490kg)(9.8m/s^2)}=0.56

hence, the friction coefficient is 0.56

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