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3 years ago

NOW HELP!!

Physics

1 answer:

Bess [88]3 years ago

3 0

Answer:

Water droplets could obtain charges thru contact with other drops.

Then if two similar drops (both positively charged) came in contact

charge could be transferred because one side of the drop would be positive and one side of the other would be negative by induction.

Several Physics Labs have built experiments called "Kelvins Thunderstorm"

where objects found in the home could be used to build a charge generator that can generate several thousand volts from falling water droplets.

Lightning usually occurs because of the very large potential that can build

because of charge differences between overhead clouds and the induced charge that will then follow in the ground. Mountain climbers know that it's time to look for safer ground when sparks start to jump from the ropes.

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Which statement accurately describes a relationship between parts of the

sammy [17]

Answer:

C. There are trillions of galaxies in the universe.

Explanation:

A. is wrong as nebulae are found inside galaxies and inside the universe, not inside stars.

B. is wrong because there are trillions of galaxies in the universe, not the latter.

D. The solar system consists of the eight planets, the Sun, comets, meteors, dwarf planets, and is inside the Milky Way galaxy and thus cannot have galaxies inside it.

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3 years ago

Read 2 more answers

A quarterback takes the ball from the line of scrimmage, runs backward for 12.1 yds, then runs sideways parallel to the line of

Over [174]

Answer:

The answer is 35.45 yds

Explanation:

You have to picture this to be able to understand it better (see attachment).

Start at the origin which is when the quarterback (QB) takes the ball. He runs backwards 12.1 yards, runs sideways for 19.8 yards (it doesn´t matter if he runs right or left), then he throws the ball forward 41.5 yards. If you look at the attachment, you can see I drew the path that the football followed. And then connected the dots from the origin and finish. The distance between those two points is the magnitude of the resultant displacement.

In order to calculate it, all you need to do is use the Pythagoream theorem, which says that the square of the hypotenuse equals the sum of the squares of the legs a and b of the triangle rectangle.

$R^{2} = a^{2} + b^{2}$ then solve for R
$R = \sqrt{a^{2}+b^{2} }$

In this case, you know the length of leg a to be 19.8 yards which how much it moves sideways. And then, to get the length of leg b, all you need to do is substract how much it moved backwards from the 41.5yards forward displacement. This results in b leg being 29.4 yards long.

Now you have a triangle with:

a = 19.8 yards
b = 29.4 yards

Substituting this numbers in the equation:

$R = \sqrt{19.8^{2}+29.4^{2} }$
R = 35.45 yards

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3 years ago

An archer pull back the string of a release an arrow at at a target. Which kind of potential energy is transformed to cause the

vekshin1

The type of potential energy is elastic energy

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3 years ago

Do you think the universe has a center

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Answer:

I dont think the universe has a center because there is such a vast majority of stars, planets, and galaxys that havent even been discovered that space could be endless. so no i dont think there is a center to the universe.

Explanation:

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4 years ago

A freely suspended magnet does not point exactly at the geographical N-S direction

elena-s [515]

Because their is nothing at the geographical poles that attracts the magnet

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