I need help with my basic physics 101 homework!! Please help.?

Question

I have not gotten my textbook yet so i cant learn how to do these problems. Please help me out and show me how to do them.
1) Convert the velocity of 60 miles per hour into units of meters per second.
2) Express the following quantities in scientific notation: 1 million, 1 billion, 1 trillion, 1 millionth (Use ^ to denote exponentials: so, 10^3 = 1000, etc.)

Answer 1

1) We have that 1mile/hr = 0.45mts/sec

  To find for 60mile/hr = (0.45)*60mts/sec

                                       = 27 mts/sec

2) 1 million = (10^3)^2 = 10^6

    1 billion = (10^3)^3 = 10^9

    1 trillion = (10^3)^4 = 10^12

Comments

One million is a thousand thousands.

1 millionth = 1/1000000

= 0.000001 = 10^-6

Scientific notation of 1 millionth is 10^-6 .