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atroni [7]
3 years ago
7

The photoelectric effect tells us that __________.

Physics
1 answer:
Ivanshal [37]3 years ago
6 0
<h2>hey </h2>

  1. It describes the process by which surface electron's are emitted from a metal when light is shined on it.
  2. And it tells us that light at a higher intensity must contain more quanta of energy, known as protons.

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What type of tide occurs on a full moon or a new moon?
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Spring tides will occur during a full moon and an new moon. The sun and moon are on a certain angle causing these tides to be neap tides, they aren't high tide nor are they low tides so you would verbalize they are in between and that is why it is called neap tides as well.
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Which statement best defines an electric field?
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A region around a charged particle or object within which a force would be exerted on other charged particles or objects
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Which was an idea use to distribute the theory of plate tectonics
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Answer:

continental drift

Explanation:

Wegener proposed that the continents plowed through crust of ocean basins, which would explain why the outlines of many coastlines look like they fit together like a puzzle

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3 years ago
Density: Two blocks, A and B, are put in a tank of water. Block A has a density of 1.21 g/cm³. Block B has a density of 1.37 g/c
stira [4]

Answer:

Block A

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Block A will float higher in the water compared to the second Block.

The density of water is 1g/cm³.

According to the principle of floatation "an object that floats in a liquid will displace equal amount of fluid to the weight of the object".

A body will become more submerged in water if it has more density because density is the mass per volume of  body.

An object with a higher density than another will sink in the liquid of the one with lesser density.

  • Object A has lesser density and will float higher up and displace very little water.
  • Object B has higher density and will be more submerged.
4 0
3 years ago
Which of the following statements are true?a. Earth's geographic south pole is also a magnetic south pole. b. Scientists have ev
ANTONII [103]

Answer:

c, d, and f.

Explanation:

Let us look at each of the statements one at a time:

a. Earth's geographic south pole is also a magnetic south pole.

This is not true. Earths magnetic south pole is slightly off (2,860 km away) from earth's geographical south pole.

b. Scientists have evidence that single isolated magnetic poles, called magnetic monopoles, exist.

Nope. So far no evidence yet exists that hypothetical magnetic monopoles exist.

c. The north pole of a bar magnet will attract the south pole of another bar magnet.

True, since opposite ends of a magnet attract and like ends repel.

d. The south poles of two bar magnets will repel each other.

Also true since like poles of a magnetic repel each other.

e. The north poles of two bar magnets will attract each other.

No, the north poles of two magnets will repel each other since they have the same polarity.

f. Earth's geographic north pole is actually a magnetic south pole.

Yes. If you call the point of the needle that points north the north pole of the compass,<em> then it points north because it is attracted to the south pole of earth's magnetic field.</em> (like repel opposites attract)

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3 years ago
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