What is de dimensional formulae for work n hw is gotten

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Which type of microscope would allow the viewer to see ribosomes inside a cell?

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a. m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?