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luda_lava [24]
3 years ago
14

What is thermal equilibrium?

Physics
1 answer:
FrozenT [24]3 years ago
3 0
Thermal equilibrium is a state in which all parts of a system are at the same temperature
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Please help! i'm horrible at this
frez [133]

Answer:

a = Δv/t = (vf - vi)/t = (0 - 5)/4 = -1.25 m/s²

Explanation:

You may or may not need the negative sign, depending on how the question designer was thinking about the problem.

4 0
3 years ago
100 POINTS!!! MAKE YOU BRAINLIEST! ASAP PLEAZE HURRY
kolezko [41]

1. I think it was the Big Bang Theory. It states that the universe was originally a small, immensely dense packet of energy that exploded causing the elements and space to form.

2. It's because of the Big Bang, even though it's a theory scientists still assume that's the reason why everything is moving away from each other. They even said something about planets and other things being formed because of it.

3. Gravitational force is a fundamental force which acts between any two bodies having mass. It is an attractive force. It is proportional to the mass of the two bodies and inversely proportional to square of distance between them.

It is due to gravitational force that holds planets with stars, moons with their planets and stars in galaxies. Had there been no gravitational force, the stars would not have formed and for the fact, any other body in this universe. Gravitational force causes the moons to revolve about planets, planets to revolve about star and star to revolve about the center of galaxy.

4. That part of the solar system is the sun. Of all the mass in the total solar system, more than 99% of it is in the sun.

5. Every object in the universe exerts a gravitational force on every other object, but the size of that force depends on the mass of the objects and the distance between them. The earth has more mass than the moon, so its gravitational pull affects the moon. The sun is more massive than any of the planets in the solar system and so its gravitational pull affects them and keeps them in orbit.

6. Earth is slightly closer to the sun in January than in July. However, summer is warmer because the tilt of the earth exposes the hemisphere to more direct light during the summer months.

7. If earth was not tilted on an axis, we wouldn't have any seasons. We wouldn't have seasons because the axis tilts us towards or away from the sun, and if you're tilted towards the sun, it would be summer. If you're tilted away from the sun, it would be winter. If there was no axis, the temperature would be the same everyday so therefore, we would not have seasons.

8. It shows the heliocentric idea of the solar system. In this view, the sun is at the center of the solar system with planets orbiting around it. In the geocentric view, the earth is at the center of the solar system.

9. On the summer solstice, the sun will shine directly on the Tropic of Cancer (23.5 degrees north ) , so the summer solstice should be picture B. While on the winter solstice, the sun will shine directly on the Tropic of Capricorn (23.5 degrees south), so the winter solstice is picture D. Because earth revolves in counter clockwise direction around the sun, the spring equinox will be picture A and the fall equinox will be picture C.

As for the dates, the spring equinox is on March 20 or 21, the summer solstice is on June 22 or 23, the fall equinox is on September 23 or 24, and the winter solstice is on December 22 or 23.

10. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

11. Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter

12. Mercury, Mars, Uranus, Venus, Earth, Neptune, Saturn, and Jupiter

Earth  

Earth, the third planet from the sun and the largest terrestrial

planet, is the only planet known to host living beings and the only one known to have liquid water on its surface. T

Jupiter  

The largest and most distinctive of the storms, the Great Red Spot, is larger than Earth. Jupiter has 63 moons and a faint ring system.

Mars

Some of the surface features of Mars, such as dry river beds, hint to the possibility that water previously existed on the planet and may still flow under the surface.

Mercury  

The planet Mercury is hot and cold at the same time. The part where it is facing the sun is so hot that it can reach up to 800 degrees Fahrenheit while the other side (not facing the sun) can be as cold as -279 F.

Neptune  

Like all the outer planets, Neptune, like Uranus, has a diameter roughly four times that of Earth.

Saturn

Saturn has an extensive and complex ring system

Uranus  

The ice giant Uranus spins on an axis parallel to its orbit.

Venus

The density of its atmosphere makes the air pressure at the surface 90 times that of Earth's. The heat and pressure make the planet decidedly inhospitable to life.  

4 0
3 years ago
which observation about the Mid-Atlantic Ridge region provides the best evidence of the seafloor has been spreading over for mil
Kitty [74]

Magnetic stripes on the sea floor

Explanation:

The observation of magnetic stripes patterns at the region of the Mid-Atlantic Ridge galvanized the evidence that sea floor spreading has been on for several millions of years.

  • Geomagnetic field of the earth is similar to that of bar magnet having the north and south pole.
  • It originates from the movement of iron-nickel within the outer core.
  • This geomagnetic field causes the magnetization of magnetic minerals in rock.
  • When freshly formed magma is brought to the surface at the mid oceanic ridge area, the prevailing magnetic field causes the magnetic minerals in the magma to cool in such a way that they align their domains to that of the field.
  • The magnetic field of the earth can reverse and take different geometry. Sometimes, its intensity is very strong and at other times it is weak.
  • The magnetic minerals in melts bear these records.
  • As new materials are brought up, they get magnetized.

Learn more:

Sea floor spreading brainly.com/question/9912731

#learnwithBrainly

8 0
3 years ago
There are 120 degrees in a straight angle. true false
mixas84 [53]
That would be false.
Straight angle= 180 degrees
Obtuse angle= Above 90, and lower than 180
Acute angle= Below 90
Hope this helps! (:
6 0
3 years ago
Read 2 more answers
What does the symbol in an electron dot diagram mean
sergey [27]
A lewis electron dot diagram (or electron dot diagram) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. the number of dots equals the number of valence electrons in the atom.
7 0
3 years ago
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