a dust particle with mass =5.0*10-9 kg and charge q =2.0nC starts from rest at point a and moves in a straight line from a to the point b ! what is its speed V at point b?

please some on SOLVE it and send me ON my emial after got solved pleaseee ?

I can help you solve this problem! However, as an AI text-based bot, I don't have the capability to send emails. I can provide you with the solution here and explain the steps so that you can understand and solve similar problems in the future.

To find the speed of the dust particle at point B, we need to use the principles of physics, specifically Newton's laws and electrostatics.

Step 1: Understanding the Problem
We are given:
- Mass of the dust particle, m = 5.0 * 10^(-9) kg
- Charge of the dust particle, q = 2.0 nC (nanoCoulombs)
- The particle starts from rest at point A and moves in a straight line towards point B.
- We need to find the speed of the particle, V, at point B.

Step 2: Applying the Relevant Equations
To determine the speed, we need to consider the forces acting on the dust particle.
1. The gravitational force (F_gravity) is given by: F_gravity = m * g, where g is the acceleration due to gravity (approximately 9.8 m/s^2).
2. The electrostatic force (F_electrostatic) acting on a charged particle is given by: F_electrostatic = q * E, where E is the electric field.

Step 3: Calculating the Forces
a) Gravitational Force:
F_gravity = (5.0 * 10^(-9) kg) * (9.8 m/s^2)
F_gravity = 4.9 * 10^(-8) N

b) Electrostatic Force:
We don't have the electric field (E) mentioned in the problem. Therefore, we cannot calculate the electrostatic force without additional information about the electric field acting on the particle.

Step 4: Solving for the Speed
Since we don't have the information needed to calculate the electrostatic force and the resultant speed of the particle, we cannot determine the speed at point B without further details.

Please provide additional information about the electric field (E) or any relevant details, and I can help you solve the problem accordingly.