<span>So we want to know what the proces in which heavy materials sink toward the planets center and lighter materials accumulate near the planets surface is called. The process described here is called differentiation. So the correct answer is C. Differentiation</span>
The inter molecular force of attraction between molecules decreases with increase in temperature. Because due to increase in temperature, the kinetic energy of the molecules increase and they starts moving with higher velocity.
Answer:
25 m
Explanation:
Given:
v₀ = 0 m/s
a = 0.22 m/s²
t = 15 s
Find: Δx
Δx = v₀ t + ½ at²
Δx = (0 m/s) (15 s) + ½ (0.22 m/s²) (15 s)²
Δx = 24.75 m
Rounded to two significant figures, the runner moves a distance of 25 m.
Answer:
It is wrong to say that "a single object all alone is moving" simply because it goes against Newton's law of inertia.
Explanation:
From Newton's law of inertia, it states that: An object at rest or in constant motion will continue in it's present state unless it is acted upon by an external force.
Which means that a single object by itself cannot move anywhere unless it is acted upon by an external force..
Thus, it is wrong to say that "a single object all alone is moving" simply because it goes against Newton's law of inertia.
Answer: 6067.5 N
Explanation:
Work = Change in Energy. To start, all of the energy is kinetic energy, so find the total KE using: KE = 1/2(m)(v^2). Plug in 1980 kg for m and 15.5 m/s for v and get KE = 237847.5 J.
Now, plug this in for work: Work = Force * Distance; so, divide work by distance to get 6067.5 N.