You have a new summer job with NASA and are working on astronomical observations using electromagnetic radiation that is not in the visible range. Your supervisor has explained 21cm radiation….

## determine the force of gravity acting between them. Compare this result with the weight of each particle.

The pascal (Pa) is actually a very small unit of pressure lo show this. convert I Pa = I N;01: 10 lb/ft:. Atmospheric pressure at sea level is 14.7 Its ‘in:. How many pascals is this

1-6. Represent each of the following to three significant figures and express each answer in SI units using an appropriate prefix: (a) 45 320 kN. (h) 105) mm. and (c) 0.005 h3 mg.

• 1-16. Two particles have a mass of N kg and 12 kg. respectively. It they are KM mm apart. determine the force of gravity acting between them. Compare this result with the weight of each particle.Compare this result with the weight of each particle.