1. Answer;
Natural motion and violent motion
Explanation;
-Natural motion is the motion arising from the nature of an object. This motion does not require an external cause in order to occur. For example: Heavy bodies naturally move toward the center of the earth, therefore falling is a natural motion.
- Natural motion was determined by the nature of the object and how much of the four classical elements it contained. Violent motion is caused by external forces applied to the object.
2. Answer;
Natural motion
Explanation;
Natural motions are those motions that objects naturally did: objects on earth fell towards the center of the earth. Heavenly objects naturally moved in circles. Additionally, heavy bodies naturally move toward the center of the earth, therefore falling is a natural motion. The natural motion of objects is one of the characteristics of an object.
3. Answer;
To assume that Earth and the other planets rotate around the sun
Explanation;
-Copernicus proposed an alternative theory--that the Earth was a planet orbiting the Sun, and that all planets moved in circles, one inside the other. Mercury and Venus had the smallest circles, smaller than that of the Earth, and therefore their position in the sky was always near the Sun's.
-That made it easy to estimate their distances from the Sun in terms of the Earth-Sun distance.
Answer:
The ball will lose heat at the rate of 0.072 J/min.
Explanation:
According to the Newton's cooling law, the rate of cooling R is given by the formula.
R=-k(T-To)
where k is a constant, T is the temperature of the object and To is the temperature of the surrounding.
Initially, R=0.15 J/min, To=700 K and T=950 K.
So 0.15=-k(950-700)
k=-0.15/250 J/K min.
Finally, To=700 K and T=820 K
R=-(-0.15/250)(820-700)
R= 0.072 J/min
Know more about Newton's cooling law.
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Answer:
ADH
Explanation:
The osmotic pressure depends on the osmolality of the plasma. In addition, the plasma osmolality is measured by the plasma content of the total body. And when there is a drop in total body volume then the plasma osmolality will boost as the plasma concentration of Na+ will rise.
As a response, water will transfer the concentration gradient downward from all cells to plasma. It causes contraction of the osmoreceptors cells. As a consequence, afferent impulses are sent to the posterior pituitary gland from the hypothalamus, to enhance the production of ADH.
Answer:
very hard others will answer it
Explanation:
hard
Answer: fluorine
Explanation:
They are both halogens (group XVIII).