10. Calculate the mechanical advantage if a machine allows you to move a 60 newton rock by only exerting 15 newtons of force. 90 newtons
110 newtons
O2 newtons
O 4 newtons

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.