Define force?and tell it's unit

Which statement best describes how private industry decides where to spend the money on research and development

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.