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riadik2000 [5.3K]
3 years ago
7

A current of 12 A flows for 20 minutes into an electric cooker. How much charge has the cooker used?

Physics
1 answer:
cluponka [151]3 years ago
7 0
Time= 20 minutes= 20*60=1200 s
Charge=current*time=12*1200=14400 C
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What is the quantity of work done when a crane lifts a 100-n block from 2 m above the ground to 6 m above the ground?.
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Explanation:

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Neglect air resistance, vertically speaking, gravitational acceleration g = -9.8m/s2 is the only thing that affects water motion. We can find the time t that it takes to reach the blaze 10m above ground level

s = v_vt + gt^2/2

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t= \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

t= \frac{19.9658877511823\pm \sqrt{(-19.9658877511823)^2 - 4*(4.9)*(10)}}{2*(4.9)}

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