Suppose two equal charges of 0.65 c each are separated by a distance of 2.5 km in air. what is the magnitude of the force acting between them, in newtons?

Force between two equal charges will be 608.4 N

Explanation:

We have given charges

Distance between the charges = 2.5 km = 2500 m

According to coulombs law force between two charges is given by

, here K is constant which value is

So force

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: