This image shows a stream of positively charged particles being directed at gold foil. the positively charged particles are called "alpha particles” and each one is like a nucleus without any electrons. what is the best explanation for why a particle is striking point x?

Which radioisotope is used in dating geological formations?

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?

If you let go of the notebook after lifting it, will it move? how?