How do you do this question?

Answer:

Explanation:

The electric field inside of a conductor is 0 because the conduction electrons are pushed to the outer edges of the conductor. The surface of the conductor still has charge.

Answer:

86.33m/s^2

Explanation:

Acceleration = Force/Mass

= 25.9/0.3

= 86.33

B pionting upwand pls make me brainliest

Answer: n=4

Explanation:

We have the following expression for the volume flow rate of a hypodermic needle:

 (1)

Where the dimensions of each one is:

Volume flow rate

Radius of the needle

Length of the needle

Pressures at opposite ends of the needle and

Viscosity of the liquid

We need to find the value of whicha has no dimensions, and in order to do this, we have to rewritte (1) with its dimensions:

 (2)

We need the right side of the equation to be equal to the left side of the equation (in dimensions):

 (3)

 (4)

As we can see must be 4 if we want the exponent to be 3:

 (5)

Finally:

 (6)