Nuclear gamma ray the nucleus dysprosium-160 (containing 160 nucleons) acts like a spinning object with quantized angular momentum, l2 = l(l + 1)ℏ2, and for this nucleus it turns out that l must be an even integer (0, 2, 4...). when a dy-160 nucleus drops from the l = 2 state to the l = 0 state, it emits an 87 kev photon (87 ✕ 103 ev). (a) what is the moment of inertia of the dy-160 nucleus?

good looking response

b would be the answer

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =