3 years ago

HURRY ! THE BEST I WILL GIVE THE BRAINLIEST

Physics

1 answer:

erik [133]3 years ago

6 0

The speed of both cars is the same ... 80 km per hour.

But their velocities are different, because DIRECTION is part of velocity, and their directions are different.

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What is the relevant similarity of the following argument?

meriva

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3 years ago

A 5.0-μC charge is placed at the 0 cm mark of a meter stick and a -4.0 μC charge is placed at the 50 cm mark. At what point on a

Maksim231197 [3]

Answer:

The distance from charge 5 μ C = 26.45 cm and the distance from - 4 μ C is 23.55 cm.

Explanation:

Given that

q₁ = 5 μ C

q₂ = - 4 μ C

The distance between charges = 50 cm

d= 50 cm

Lets take at distance x from the charge μ C ,the electrical field is zero.

That is why the distance from the charge - 4 μ C = 50 - x cm

We know that ,electric field is given as

$E=K\dfrac{q}{r^2}$

$K\dfrac{5\ \mu}{x^2}=K\dfrac{4\mu }{(50-x)^2}\\\\\dfrac{5}{x^2}=\dfrac{4 }{(50-x)^2}\\\\\\5(50-x)^2=4x^2\\(50-x)^2=0.8x^2\\\\50-x =0.89x\\\ x=\dfrac{50}{1.89}\ cm\\\\\\x=26.45\ cm\\$

Therefore the distance from charge 5 μ C = 26.45 cm and the distance from - 4 μ C is 23.55 cm.

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3 years ago

As a freely falling object speeds up, what is happening to its acceleration - does it increase, decrease, or stay the same? (a)

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Answer:

(a)When ignoring air resistance its accelerating increases steadily .

(b)When considering air resistance then its acceleration decreases this could either be uniformly or unevenly.

Hope this helped.

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two forces equal in magnitude and opposite in direction act at the same point on an object. is it possible for there to be a net

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If the forces are equal, at a distance equidistant it is not possible to act a pair on the body since both torques cancel each other. Being of the same magnitude and in the opposite direction, the sum of the torques will be zero.

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what color does acid turn red litmus papera substance tested with blue litmus paper, is clear and colorless, and feels slippery.

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When red litmus paper comes into contact with any alkaline substance, it turns blue. Some examples of alkaline substances are ammonia gas, milk of magnesia, baking soda and limewater.

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3 years ago

HURRY ! THE BEST I WILL GIVE THE BRAINLIEST​

HURRY ! THE BEST I WILL GIVE THE BRAINLIEST