A wave traveling at 230 m/sec has a wavelength of 2.1 meters. What is the wave frequency?

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

In a system, when potential energy decreases, then entropy also decreases. true false

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is