Answer: Universe.
Explanation: In addition to the solar system, the heliocentric model stated that the sun was the center of the UNIVERSE.
Every plant orbits around the sun, which makes our universe whole and bright.
Hope this helps you out! ☺
-Karleif-
Net force is basically the force an object has when changing direction, so the answer would be D.
The answer is B. On a sunny day, the air over a lake will be cooler than the air over the bordering land.
Answer:
0.4778 m/s
Explanation:
To solve this question, we will make use of law of conservation of momentum.
We are given that the rock's velocity is 12 m/s at 35°. Thus, the horizontal component of this velocity is;
V_x = (12 m/s)(cos(35°)) = 9.83 m/s.
Thus, the horizontal component of the rock's momentum is;
(3.5 kg)(9.83 m/s) = 34.405 kg·m/s.
Since the person is not pushed up off the ice or down into it, his momentum will have no vertical component and so his momentum will have the same magnitude as the horizontal component of the rock's momentum.
Thus, to get the person's speed, we know that; momentum = mass x velocity
Mass of person = 72 kg and we have momentum as 34.405 kg·m/s
Thus;
34.405 = 72 x velocity
Velocity = 34.405/72
Velocity = 0.4778 m/s