How long does it take for a kangaroo to reach its highest point(seconds)?

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Ответ:

tia5520

28.07.2020

Physics

The speed of light is $3 \times 10^{8} \frac{m}{s}$

Explanation:

Given:

Time interval of reflect light from panel t = 2.51 sec

Center to center distance between earth and moon $x' = 3.84 \times 10^{8}$ m

Here light reflect from surface so net distance is given by,

$= 3.84 \times 10^{8} - 6380000 -1740000$

= 375884500 m

And light is reflect from moon surface,

$= 2 \times 375884500$

x = 751769000 m

So velocity is given by,

$v = \frac{x}{t}$

$v = \frac{751769000}{2.51}$

$v = 3 \times 10^{8} \frac{m}{s}$

Therefore, the speed of light is $3 \times 10^{8} \frac{m}{s}$

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How long does it take for a kangaroo to reach its highest point(seconds)?￼