Awave on a string is described by y(x, t) : 15.0 sin( ncls - where x and y are in centimeters and / is in seconds. (a) what is the transverse speed for a point on the string at x : 6.00 cm when t - 0.250 s? (b) what is the maximum transverse speed of any point on the string? (c) what is the magnitude of the transverse acceleration for a poi

Find the volume of the ellipsoid x^2+y^2+5z^2=36.

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 type of wave can travel without a medium