Aclosely wound rectangular coil of 80 turns has dimensions 25.0 cm by 40.0 cm. the plane of the coil is rotated from a position in which it makes an angle of 37.0 degrees with a magnetic field of 1.10 t to a position perpendicular to the field. the rotation takes 0.0600 s. what is the average emf e induced in the coil

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 of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?