A helicopter has blades of length 4.0 m rotating at 3.0 rev/s in a horizontal plane. If the vertical component of the Earth’s magnetic field is 6.5 105T, what is the induced emf between the tip of a blade and the hub?

Induced emf,

Explanation:

Given that,

Length of the helicopter, l = 4 m

Angular speed of the helicopter,

The vertical component of the Earth’s magnetic field is,

We need to find the induced emf between the tip of a blade and the hub. The induced emf in terms of angular velocity of an rotating object is given by :

So, the induced emf between the tip of a blade and the hub is . Hence, this is the required solution.

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it