An alpha particle is moving at a speed of 5.0 × 10^{5} m/s in a direction perpendicular to a uniform magnetic field of strength 0.040 T. The charge on an alpha particle is 3.2 × 10^{-19} C and its mass is 6.6 × 10^{-27} kg. What is the radius of the path of the alpha particle?

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass

Which bonds are found inside a water molecule