Answer: The angle between the wire segment and the magnetic field 66.42°
Explanation:
Please see the attachment below
Answer:
Rotational inertia of the object is given as

Explanation:
As we know that the acceleration of the object on inclined plane is given as

now we know that velocity at any instant of time is given as

now we know that if the graph between velocity and time is given then the slope of the graph will be same as acceleration
so here we have

now from the graph slope of the graph is given as




now rotational inertia is given as



The wavelength of a wave (λ) is given by λ

where c is the wave speed and f is the frequency