In order for an ion to have a -1 charge, it must have

Which of the following are guidelines to follow for obtaining accurate observations

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

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?