3 years ago

If you throw a red stone into the blue sea what it will become?

Physics

1 answer:

sammy [17]3 years ago

6 0

A purple stone because the blue water will distort the red rock and become purple to the eyes

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A rockets thruster provides a 300 N force to the right . Air resistance causes a 130 N to the left what is the net force?

mel-nik [20]

Answer:

+300N-130N=170N

Explanation:

because two forces in opposite direction one take +and the other takes -

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3 years ago

Describe and explain the motion of a small ball floating on a pond when waves travel across the pond

laila [671]

I think the answer is periodic motion.

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Two particles with oppositely signed charges are held a fixed distance apart. The charges are equal in magnitude and they exert

damaskus [11]

Answer:

the force will decrease to 3/4 of its original value.

Explanation:

The initial electric force between the two charges is:

$F = k \frac{q\cdot q}{r^2}$

where

k is the Coulomb's constant

q is the magnitude of each charge

r is their separation

Later, half of one charge is transferred to the other charge; this means that one charge will have a charge of

$q+\frac{q}{2}=\frac{3}{2}q$

while the other charge will be

$q-\frac{q}{2}=\frac{q}{2}$

So, the new force will be

$F' = k \frac{(\frac{q}{2})\cdot (\frac{3}{2}q)}{r^2}=\frac{3}{4} (k\frac{q\cdot q}{r^2})=\frac{3}{4}F$

So, the force will decrease to 3/4 of its original value.

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3 years ago

Explain how an electrical wet cell functions.

Fynjy0 [20]

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Ostrovityanka [42]

Answer:

Explanation:

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