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2 years ago

Define these terms about speed and state their units speeddistance coveredtime taken

Physics

1 answer:

Neporo4naja [7]2 years ago

4 0

Explanation:

Speed is the rate of change of distance with time. It is a scalar quantity with magnitude both no direction.

Speed = $\frac{distance}{time}$

The unit is m/s or km/hr or mile/hr

Distance covered is simply the length of the path traveled.

The unit is m or km or miles

Time taken is the duration of an event.

The unit is seconds or minutes or hour.

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3 years ago

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2 years ago

What must be the distance between point charge 91 = 20 MC and point charge 02 -45,0 AC for the electrostatic force between them

Fynjy0 [20]

Answer:

Explanation:

Q₁ = 20 X 10⁻⁶ C

Q₂ = -45 X 10⁻⁶ C

d is required distance.

F = Force between the = 7 N

F = k x Q₁ X Q₂ / d²

d² = k x Q₁ X Q₂ / F = 20 X 45 X 10⁻¹² X 9 X 10⁹ /7

=1.157

d = 1.075 m

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3 years ago

Define these terms about speed and state their units speed​distance coveredtime taken

Define these terms about speed and state their units speeddistance coveredtime taken