Given that
• The distance from the earth to the sun is 1.5*10^11m, and
• The mass of the sun is 1.9 *10^30 kg ,
1. use Kepler’s Law of Periods to find the period of the earth’s orbit, recorded in seconds:;
2. show how to express your answer in years; and
3. if your answer does not agree with the accepted earth orbital period of 365.25 days, explain the discrepancy.
2 answers
You have a problem to solve. You may need to type the problem or question here.
Identify the units on x in each of the following equations.
(a) x = yz (both y and z are measured in feet)
(b) x = 3 y^2 (y is measured in inches)
(c) x = t^3 (t is measured in seconds)
(d) x = 4F2 d (both F and d are measured in meters)
4. In an exponential expression such as A = be -(t/RC) , we cannot attach units to the exponent -(t/RC) because a base, such as e, can only be raised to a pure number. Consequently, if the variable t in this equation is measured in seconds, what does this imply about the units on the product RC?
(a) x = yz (both y and z are measured in feet)
(b) x = 3 y^2 (y is measured in inches)
(c) x = t^3 (t is measured in seconds)
(d) x = 4F2 d (both F and d are measured in meters)
4. In an exponential expression such as A = be -(t/RC) , we cannot attach units to the exponent -(t/RC) because a base, such as e, can only be raised to a pure number. Consequently, if the variable t in this equation is measured in seconds, what does this imply about the units on the product RC?