YOU HAVE A ROCK A JUG OF WATER AND A BUCKET AND THEN POUR THE WATER OVER IT WHAT CHANGE OF SHAPE WOULD YOU RXPECT TO FIND AND WHY.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Light waves travel than sound waves.

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?