Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. if the laser light wavelength is 1062 nm (this corresponds to a neodymium-yag laser), and the pulse lasts for 34 picoseconds, how many wavelengths are found within the laser pulse?
how short would the pulse need to be to fit only one wavelength?

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.