Please answer Question number 1(any of them), 2 and three.

1) The Cassini space probe was one of NASA's most successful missions. It collected data about Saturn for nearly 13 of its 20 years in flight. Cassini eventually burned up in the atmosphere of Saturn after returning an unprecedented amount of data about that planet. If the mass of Cassini was 5712 kg what was the gravitational force from Saturn acting upon it? The mass of Saturn is 5.69 x10^26 kilograms and its diameter is 119,871 km. Use the information in the formula sheet to assist you in answering this question.

or

1) Discuss the work of Edwin Hubble and how it led to the Big Bang Theory. Describe the evidence supporting the Big Bang Theory

Here is a list of formulae that you may need to answer questions:

Equations relating d,v,a, and t:

v = d/t t= d/v

v = a x t d = v x t

a = (vf-vi)/t d = x a x t2

Newton's Second Law:

F = m x a

Equation of Universal Gravitation:

F = (G X m1 X m2)/d2

G is the Universal Gravitational Constant 6.67 x 10-11N-m2/kg2

2) Discuss the development of our current model of the solar system, beginning with the earliest efforts in astronomy, up to the present. As above you do not need exact dates but do put your answer in chronological order.

3) Define the term Plate Tectonics and describe three pieces of evidence that support this concept.