Which describes how scientists gain scientific knowledge? A.) Most scientific knowledge is accepted right away by scientists.
B.) Most scientists work in isolation.
C.) They rarely use scientific methods to test new ideas.
D.) They work in collaboration and share ideas.

An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?