Is the expression 2x-2 equivalent to the expression 2 (x-2)?Explain.
2 answers:
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Answer:
v / √5
Step-by-step explanation:
Solution:-
- We have a satellite of mass ( m ) that orbits the earth of mass ( M ). The radius of orbit is ( r ) : center of earth - to - center of satellite radial distance.
- The satellite orbits the Earth with constant tangent velocity ( v ). The velocity ( v ) is a function of massive body ( M ) about which the smaller body orbits and orbital radius ( r ).
- The formulation is given by:
Where,
G: The universal gravitational constant
- We are to compare the orbital speeds by changing some of the parameters in the above relation.
- The effect on the orbital speed ( v_orbit ) by increasing the orbital radius to ( 5r ) can be evaluated using the given relation. Such that:
- Now take the ratio of initial orbital speed to the increased orbital radius ( 5r ):
