A color television tube generate some X-rays when electron beam strikes the screen. What is the shortest wavelength of these X-rays, if a 30.0kev potential is used to accelerate the electrons

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

At what time will the interfering waves have an amplitudeof zero?

Avector has an x-component of length 12 and a y-component of length 14. what is the angle of the vector? (hint: use the inverse tangent) a. 31.2 b.40.6 c.59.0 d.49.4 and plz let me know if your good at physics because i need