2questions : / which of the following is not part of the structure of a comet? a. coma b. head c. dust tail d. nucleus how far can light travel in one year? a. 300,000 km b. 30 million km c. 10 trillion km d. 100 billion km if anyone can =)

Check the following equation for dimensional homogeneity: ⅆ mv=∫t1t2(f⁢cosθ)ⅆt where m is mass, v is velocity, f is force, θ is an angle, and t is time. check that each term in the equation has the following dimensions: [malbec] where you are to choose the coefficients a, b, c.