The power output of a laser is measured in units of watts (W), where one watt is equal to 1 one joule per second (1 W = 1 J. s-1) What is the number of photons emitted per second by a 1.00 mW nitrogen laser?
The wavelength emitted by a nitrogen laser is 337 nm.

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

Ineed ! it’s science and it’s due tomorrow!

Will mark brainliest26. which of these statements are true? (3 points)a. gases are compressibleb. gases fill their containers completelyc. the pressure of a gas is independent of the temperatured. gases have masse. gases exert pressuref. the pressure of a gas is dependent on the volumeg. gas pressure results from the collisions between gas particlesh. gases have a definite volume and shape