Given that average speed is distance traveled divided by time, determine the values of m and n when the time it takes a beam of light to get from the sun to the earth (in s) is written in scientific notation. note: the speed of light is approximately 3.0×108m/s.

The distance  of earth from sun is 150 million km

We know that one million = 10^6 and 1 km= 10^3 m

Hence 150 million km = 150× 10^6 ×10^3 metre=150×10^9 m

                                                                                  =1.5×10^11 m

The speed of light in vacuum is  2.999... m/s which can be approximately close to  3.0 ×10^8 m/s

We are asked to calculate the time taken by the light beam to reach from sun to earth.

we know that average velocity

                                                       ⇒

Here distance=1.5×10^11 m and v=c= 3.0×10^8 m/s

                            hence time

                                                           =0.5×10^3 s

                                                            =5.0×10^2 s

 A correct scientific notation  is written as m×10^n   [Here m is the magnitude and n is power of 10]                                                      

Hence the value of m =5 and value of n =2

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

mass and volume are the answers you are looking for