Answer:
F = 5.625 10⁻⁷ N
Explanation:
For this exercise we use coulomb's law
F =
where k is the Coulomb constant which is equal to 9 10⁺⁹ N m² /C²
as the charge on the two spheres has the same sign, the force is repulsive,
let's calculate
F = 9 10⁹ 25 10⁻⁹ 10 10⁻⁹ / 2²
F = 5.625 10⁻⁷ N
Answer: The ball's acceleration is 2.35 m/s2
Explanation: Please see the attachment below
Answer:
Explanation:
Let a car of m is on an incline bank of angle θ and it is rounding a curve with no friction. We need to find the centripetal force acting on it.
The attached free body diagram shows the car on the banked turn. It is clear that,
In vertical direction,
In horizontal direction,
So, the centripetal force is equal to . Hence, the correct option is (c).
