arzolajessica6 arzolajessica6

25-01-2019
Physics

contestada

Select the correct answer. G = 6.67 × 10-11 N·m2/kg2 Me = 5.598 × 1024 kg What is the velocity of an Earth satellite that is in a circular orbit with a radius of 7.5 × 107 meters measured from the center of the Earth?

A.
2.9 × 103 meters/second
B.
2.3 × 103 meters/second
C.
7.5 × 103 meters/second
D.
5.9 × 103 meters/second

Respuesta :

christy52 christy52

25-01-2019

centripetal force of satellite = gravitational force between earth and the satellite
(m•v^2)/r = (G•Me•m)/r^2
v^2 = (G•Me)/r
v^2 = 6.67x10^-11 x 5.598x10^24 / 7.5x10^7
v = 2231 m/s

so answer is B

Answer Link

Otras preguntas

Explain one structural adaptation of birds. Include what caused this adaptation and how it helps birds to survive and reproduce.

At a zoo, the lion pen has a ring-shaped sidewalk around it. The outer edge of the sidewalk is a circle with a radius of 11m. The inner edge of the sidewalk is

Choose the statements that CORRECTLY describe the voting process in Georgia.In order to vote in Georgia you must first register to vote.In order to vote, you ha

what are the benefits of maintaining you vehicle?

If 4.8 moles of X and 3.4 moles of Y react according to the reaction below, how many moles of the excess reactant will be left over at the end of the reaction?

How do I double the volume of a pyramid

What are two options for using Find and Replace? Find whole words only and Match case Match case and Find fragments only Match language and Show revisions Find

What is the term for a solid that forms when two solutions are mixed? a precipitate a gas a suspension a solution

NEED HELP ASAP! simplify the radical expression State any restrictions (n^4 -11n^2 +30) / (n^4 -7n^2 +10) Please show steps!

When malcolm gets upset, he shops. though it never delivers on the promise fully, he can't stop believing that new possessions will give him a new outlook on th