548 kg 125 kg
63.5 kg
0.385 m
2. Compare the gravitational force of the first ball acting on the last ball, and the gravitational force
of the last ball acting on the first ball. Explain your reasoning.

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

b.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

the answer is 95 degrees