Asolenoid has 100 turns per cm and a total resistance of 60 ω center of the solenoid when it is connected to a 12 volt battery determine the magnetic field in the 21 a flat c

2.5 x 10^-3 T

Explanation:

n = 100 turns / cm = 10000 turns / m, R = 60 ohm, V = 12 V

i = V / R = 12 / 60 = 0.2 A

Magnetic field due to solenoid is

B = μ0 x n x i

B = 4 x 3.14 x 10^-7 x 10000 x 0.2

B = 2.5 x 10^-3 T

multiply 2kg by latent heat of vap

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.