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insens350 [35]
3 years ago
6

In a reaction the mass of a reactant decreases by 58g in 233 seconds. What is the rate?

Physics
1 answer:
Yuki888 [10]3 years ago
5 0

I've just been doing that now, this might be a bit late but the answere is 0.25g/s

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A 5kg object accelerates from 3m/s to 7m/s in 5 seconds. Calculate the force required
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3 years ago
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aniked [119]

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Option C

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Centripetal acceleration formula regarding velocity and radius is,

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now we know the centripetal acceleration is 9 and the radius is 16 so we plug these values into our formula,

a_c=\frac{v^2}{r}\\\\9=\frac{v^2}{16} \\\\144=v^2\\\\\sqrt{144}=v \\\\v=12\ m/s

so velocity is 12 m/s

Now for the angular velocity, the formula of centripetal acceleration regarding angular velocity and radius is,

a_c=rw^2

we know the centripetal acceleration is 9 and the radius is 16 so plug these values into the formula,

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so angular velocity is 0.75 rad/s

8 0
3 years ago
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