Assume that the sun orbits the center of the galaxy at a speed of 220 km/s and a distance of 26,000 light-years from the center.
calculate the circumference of the sun’s orbit, assuming it to be approximately circular. (remember that the circumference of a circle is given by 2πr, where r is the radius of the circle. be sure to use consistent units. the conversion from light-years to km/s can be found in an online calculator or appendix, or you can calculate it for yourself: the speed of light is 300,000 km/s, and you can determine the number of seconds in a year.)
calculate the sun’s period, the “galactic year.” again, be careful with the units. does it agree with the number we gave above?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must available hint(s)utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must pump water back into their cells to counter its loss due to osmosisactively pump water back out of their cells to counter its inflow due to osmosissynthesize membranes that are impermeable to substances that upset osmotic balanceactively pump salt back out of their cells to counter its inflow due to osmosis