1. Which of the following physical features is not located in Canada? A. Canadian Rockies
B. Four of the Great Lakes
C. Appalachian Mountains
D. Canadian Shield
E. Mississippi River

Giving the right triangle jkl what is the value of cos (l)

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity