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3 years ago

If I travel 400 kilometers in 10 hours what is my speed

Physics

2 answers:

xxTIMURxx [149]3 years ago

8 0

Answer:

40km/hr

Explanation:

we divide the distance with time

Illusion [34]3 years ago

3 0

Answer:

<h3>The answer is 40 km/ hr</h3>

Explanation:

To find the speed we use the formula

$speed \: = \frac{distance}{time}$

From the question

The distance is 400 km

The time is 10 hours

Substitute the values into the above formula

That's

$Speed = \frac{400 \: km}{10 \: hours}$

We have the final answer as

Hope this helps you

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Three charged particles are positioned in the xy plane: a 50-nC charge at y = 6 m on the y axis, a −80-nC charge at x = −4 m on

disa [49]

Answer:

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Explanation:

Since we know that electric potential is a scalar quantity

So here total potential of a point is sum of potential due to each charge

It is given as

$V = V_1 + V_2 + V_3$

here we have potential due to 50 nC placed at y = 6 m

$V_1 = \frac{kQ}{r}$

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Now potential due to -80 nC charge placed at x = -4

$V_2 = \frac{kQ}{r}$

$V_2 = \frac{(9\times 10^9)(-80 \times 10^{-9})}{12}$

$V_2 = -60 Volts$

Now potential due to 70 nC placed at y = -6 m

$V_3 = \frac{kQ}{r}$

$V_3 = \frac{(9\times 10^9)(70 \times 10^{-9})}{\sqrt{6^2 + 8^2}}$

$V_3 = 63 Volts$

Now total potential at this point is given as

$V = 45 - 60 + 63 = 48 Volts$

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Alex17521 [72]

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frosja888 [35]

Answer:

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Explanation:

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