Your friend decides to toast a piece of bread but leaves it in the toaster too long the bread is black and the kitchen is full of smoke

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these