I'd is 643461717 and password is dynamo

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

In salt water solution,the salt is the blank

Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __