Consider the electric force between a pair of charged particles a certain distance apart. by coulomb's law: if instead, the distance between the particles is doubled, the force becomes

a. one fourth.
b. half.
c. double.
d. 4 times.

Explanation:

The electric force between two charged particle is given by :

d is the distance between charged particles

Let F' is the force when the distance between the particles is doubled, d' = 2d

New force is given by :

The new force becomes one fourth of the original force. So, if the distance between the particles is doubled, the force becomes one fourth.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.