Making a turn, a jetliner flies 2.3 km on a circular path of radius 3.6 km through what angle does it turn?

37 degrees First, let's figure out the circumference of a circle that has a radius of 3.6 km. So 3.6 km * 2 * pi = 7.2 km * pi ~ 22.61946711 km So the circumference is approximately 22.61946711 km. Now let's determine how much of that circumference the jet traveled. 2.3 km / 22.61946711 km = 0.101682325 Finally, since a full circle is 360 degrees, let's multiply by that to get the angle. 0.101682325 * 360 = 36.60563691 So after rounding to 2 significant figures, the jet turned through an angle of 37 degrees.

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

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