3 years ago

• Can you explain why scientific theories will change over time?

2 answers:

7 0

Because as new evidence is discovered, portions of the theory will either be proved true or false, therefore altering the theory
-hope this is the answer you are looking for.

marishachu [46]3 years ago

3 0

Because as we develope into our times from today to tomorrow and the next, us as a human race will never stop discovering

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Answer:

$K = \frac{GMm}{2r}$

$T^2 = 4\pi^2(\frac{r^3}{GM})$

Explanation:

As we know that for a satellite the force of gravitation is equal to the centripetal force

so we will have

$F = \frac{GMm}{r^2}$

$\frac{mv^2}{r} = \frac{GMm}{r^2}$

so we know that kinetic energy is given as

$K = \frac{1}{2}mv^2$

so we have

$K = \frac{GMm}{2r}$

now for time period we know

$T = \frac{2\pi r}{v}$

from above expression of kinetic energy we have

$v = \sqrt{\frac{GM}{r}}$

so we have

$T = \frac{2\pi r}{\sqrt{\frac{GM}{r}}}$

so square of time period is given as

$T^2 = 4\pi^2(\frac{r^3}{GM})$

3 0

3 years ago