Answer:
λ= 5.24 × 10 ⁻² nC/cm
Explanation:
Given:
distance r = 4.10 cm = 0.041 m
Electric field intensity E = 2300 N/C
K = 9 x 10 ⁹ Nm²/C
To find λ = linear charge density = ?
Sol:
we know that E= 2Kλ / r
⇒ λ = -E r/2K (-ve sign show the direction toward the wire)
λ = (- 2300 N/C × 0.041 m) / 2 × 9 x 10 ⁹ Nm²/C
λ = 5.24 × 10 ⁻⁹ C/m
λ = 5.24 nC/m = 5.24 nC/100 cm
λ= 5.24 × 10 ⁻² nC/cm
Answer:
A short circuit is an electrical circuit that allows
Explanation:
Answer:
(iv), (v), (vi) would be incorrect.
Explanation:
(iv) Force isn't transferred from one colliding object to another, but momentum can be.
(v) An object doesn't stop immediately a force stops acting on it. Think of a thrown ball.
(vi) For an object not to move, it means that the net force on the object is zero, and not necessarily that there are no forces acting on the object. For example, an object could be pushed on one side, and be pushed on the other side with an equal force in the opposite direction. The forces would cancel each other and the net force would be zero.
The rest should be correct.
Answer:
Kantians would say that Sharkeisha acted immorally since she increased overall pain.
Answer:
P_up-P_low = 4518 Pa
Explanation:
The pressure definition is
P = F / A
We cleared the force
F = P A
Let's write Newton's second law
∑ F = F_up - F_ low
∑F = P_ up A - P_low A
As the plane is in equilibrium (going at constant speed) the sum of force is equal to zero
A (P_up -P_low) - W = 0
P_up - P_low = W / A
P_up-P_low = 77000 9.8 / 167
P_up-P_low = 4518 Pa
assumptions that the area in the two parts of the wing is equal