What is the approximate tangential speed of an object orbiting Earth with a radius of 1.8 x 108 m and a period of 2.2 x 104 s?
co
O 7.7 x 10-4 m/s
5.1 x 104 m/s
7.7 x 104 m/s
5.1 x 105 m/s
O
B

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The purpose of a lab is to do your "expirements" the importance of the topic is so you can now what the story is about and the last one is because no one is me with my question ( what is 3 over 4 x - 9 = 27 maybe you can )

Ithink it is letter b, i may be wrong but i think that is the answer