A comet<span> is an icy small Solar System body that, when passing close to the Sun, warms and begins to evolve gasses, a process called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail.</span>
Answer:
(1) Less
Explanation:
Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
Answer: The potential energy in the system is greatest at X
Explanation: Potential energy is how much energy an object can have. Gravity has an effect on potential energy, the higher something is, the more potential energy it has. For example, if you hold a book above your head, that book has potential energy. When you drop the book, it has kinetic energy. Therefore, since point X is the highest point, the ball has the greatest potential energy there.
Answer:
I think its ans is option B
A scientist took this picture and concluded that ________.
the stars could not be seen because of light pollution
the stars were too far away to observe without a telescope
there were many patterns of stars in the sky
there were no stars in the sky that night
Answer:
A scientist took this picture and concluded that the stars could not be seen because of light pollution....
thank you
