Hi, what is it you need help with?
Answer:
The magnitude of the electrostatic force is
Explanation:
Given that,
Charge
Charge
Distance = 2.40 m
We need to calculate the electrostatic force
Using formula of electrostatic force
Where, k = coulomb's constant
q = magnitude of the charge
d = distance
Put the value into the formula
Hence, The magnitude of the electrostatic force is
Explanation:
Given that,
Mass of the cart,
Mass of the cart 2,
Final speed of cart 2,
Final speed of cart 1 is 0 as it comes to rest.
Let us assume that the initial velocity of the cart 2 is 0. So using the conservation of linear momentum as :
So, the initial velocity of the 1.0-kg cart is 0.9 m/s.
I only remember #9 sry. The answer is a plant cell