Answer:
D. "The net force is zero, so the acceleration is zero"
Explanation:
edge 2020
Answer:
1) F = 8.789 10² N, 2) F = 1.5 10⁴ N
Explanation:
We can solve this exercise using Coulomb's law
F =
Knowing that charges of the same sign repel
let's apply this equation to our case
1) the charges are q = - 0.0025 C and the distance between them r = 8 m
we calculate
F = 9 10⁹ 0.0025 0.0025 /8²
F = 8.789 10² N
as the two charges are of the same sign the force is repulsive
2) q₁ = -0.004C and q₂ = -0.003 C with a distance of r = 3.0 m
we calculate
F = 9 10⁹ 0.004 0.003 / 3²
F = 1.5 10⁴ N
I really don't understand what's behind this question at all,
but I can sure do the math:
Speed = (distance covered) / (time to cover the distance) .
= ( 36 meters) / (13 seconds)
= (36/13) (meters/second)
= 2.7692... meters per second (rounded)
(about 6.2 miles per hour) .
According to the Newton's second law :- The acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.
Answer:
The Answer is gonna be B.
Air warms and rises.