A salt is dissolved in water which has a freezing point of 0 degrees celsius. the freezing point of the solution would be dependent on the concentration of the salt in the solution. It is explained by the colligative properties. These <span>are </span>properties<span> that depend upon the concentration of solute molecules or ions, but not upon the identity of the solute. Hope this answers the question.</span>
Answer: When a liquid or gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. ... The molecules move more slowly and take up less space. Therefore temperature can affect density.
Explanation:
Answer:
Similarities between magnetic fields and electric fields: ... Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges). Like poles repel; unlike poles attract. Electric field points in the direction of the force experienced by a positive charge ...
Explanation:
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Here is another thing from the same website just not shortened:
Similarities between magnetic fields and electric fields:
- Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges).
- Like poles repel; unlike poles attract
- Electric field points in the direction of the force experienced by a positive charge. Magnetic field points in the direction of the force experienced by a north pole.
Differences between magnetic fields and electric fields:
- Positive and negative charges can exist separately. North and south poles always come together. Single magnetic poles, known as magnetic monopoles, have been proposed theoretically, but a magnetic monopole has never been observed.
- Electric field lines have definite starting and ending points. Magnetic field lines are continuous loops. Outside a magnet the field is directed from the north pole to the south pole. Inside a magnet the field runs from south to north.
We will find that his average velocity is 1.11 m/s north-wise.
<h3>
How to get the average velocity?</h3>
We define average velocity as the quotient between the displacement and the time it takes to make that displacement.
We know that he starts at the point 0m, where this measures distance in the north direction.
Then he moves 1000 meters north, so the new position is 1000m.
Then he moves 200 meters south, so the new position is:
1000m - 200m = 800m.
The displacement is equal to the difference between the final position (800m) and the initial position (0m).
D = 800m - 0m = 800m.
And we know that it takes 12 minutes to walk that distance. Because we want the average velocity in meters per second, we write:
12 minutes = 12*(60 seconds) = 720s
Then the average velocity is just:
AV = (800m)/(720s) = 1.11 m/s
And the direction of this average velocity is north-wise.
If you want to learn more about average velocity, you can read:
brainly.com/question/4931057
Within the system of the same star, the period of a planet's orbit is
proportional to the 3/2 power of its distance from the central body.
(Kepler's empirical third law of planetary motion, promoted to being
etched in stone by Newton's gravitation.)
(4) ^ 3/2 = <em>8 times</em> as long.
