The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct?

• Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.

• Gamma rays have higher energy than microwaves because gamma rays have lower frequencies.

•Infrared light has lower energy than X-rays because infrared light has shorter wavelengths.

•Infrared light has lower energy than X-rays because infrared light has higher frequencies.

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Which is not true about oxygen-17 and oxygen-18?