3 years ago

Which of the following results when a crest and trough meet?

1 answer:

6 0

D. Destructive interference. An easy way to think about it is the waves are opposite each other, so they essentially cancel each other out, or make an effort to.

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When white light passes through a prism, a red light is least changed in direction? True or false

Goryan [66]

True because the picture below proves this....

* from which red color is least deviated and violet most.

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4 years ago

How does the magnitude of the electrical force between a pair of charged particles change when they are brought to half their or

Ostrovityanka [42]

Answer:

5. Quadruple

Explanation:

The electrostatic force between two charged particles is given by:

$F=k\frac{q_1 q_2}{r^2}$

where

k is the Coulomb's constant

q1, q2 are the two charges

r is the separation between the charges

If the distance between the charges is reduced to half,

$r' = \frac{r}{2}$

So the new force will be

$F'=k\frac{q_1 q_2}{(r/2)^2}=4(k\frac{q_1 q_2}{r^2})=4F$

So, the force will quadruple.

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3 years ago

In terms of diameter, the planet Saturn is larger than _______ , but smaller than _______.

hram777 [196]

ANSWER:

NEPTUNE & JUPITER

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3 years ago

Jack tries to place magnets on the door of his refrigerator. He observes that the magnets don’t stick. He guesses that the door

zaharov [31]

The answer is D.) Make observations

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3 years ago

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jill's car has a maximum acceleration of 8.7 miles per hour per second. how many seconds does it take her to acceleration from 0

amm1812

T = ?
v1 = 0mph
v2 = 60mph
a = 8.7mph/s

$a = \frac{v2 - v1}{t}
 \\ t = \frac{v2-v1}{a}
 \\ t = \frac{60mph - 0mph}{8.7mph/s}
 \\ t = 6.90s$

Therefore, it takes 6.90 seconds for Jill to accelerate from 0 to 60 miles per hour.

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4 years ago