Question

Find the calculation from exponents 5.6×10^25÷3×10^8
Easy form

Answer 1

Answer:

1.87× 10^17 s

Step-by-step explanation:

The distance of the galaxy from earth is, d=5.6\times 10^{25}\ md=5.6×10

25

m

Speed of light, v=3\times 10^8\ m/sv=3×10

8

m/s

To find,

The time taken by light to travel this distance.

Solution,

The formula of speed of an object is given by total distance divided by total time taken. So,

v=\dfrac{d}{t}v=

t

d

t is time taken by light to travel this distance

\begin{gathered}t=\dfrac{d}{v}\\\\t=\dfrac{5.6\times 10^{25}}{3\times 10^8}\\\\t=1.87\times 10^{17}\ s\end{gathered}

t=

v

d

t=

3×10

8

5.6×10

25

t=1.87×10

17

s

So, the time taken by light to travel this distance is 1.87\times 10^{17}\ s1.87×10

17

s .