Answer:
17 N
Explanation:
Constant velocity means acceleration is 0.
If acceleration is 0, then the net force is 0. Which means the i components add up to 0, the j components add up to 0, and the k components add up to 0.
0 = 2.0 N − 8.0 N + Fi
Fi = 6.0 N
0 = 4.0 N + 9.0 N + Fj
Fj = -13 N
0 = -2.0 N − 8.0 N + Fk
Fk = 10. N
The magnitude of the force is:
F² = Fi² + Fj² + Fk²
F² = (6.0 N)² + (-13 N)² + (10. N)²
F = √305 N
F ≈ 17 N
Answer:
Explanation:
Let the smaller sphere have a radius of R
Electric field on its surface( just outside the sphere) (E₀) = k Q / R²
Electric field on the surface of larger sphere
(E) = k Q / (3R)²
= k Q / 9R²
= E₀ / 9
So option e is correct.
Answer:
25
Explanation:
Velocity= change in displacement/ change in time
=100-0/4-0
=25
I don't see an image, but the force of gravity depends on mass and distance. If the mass and the distance are different, you divide (mass÷distance).the greater the number the greater the force of gravity.
Tell me if you need more info.
Inductive reactance (Z) = ω L = 2Πf L = (2Π) (12,000) (L)
I = V / Z
4 A = 16v / (24,000Π L)
Multiply each side by (24,000 Π L):
96,000 Π L = 16v
Divide each side by (96,000 Π) :
L = 16 / 96,000Π = 5.305 x 10⁻⁵ Henry
L = 53.05 microHenry