answer the following. (a) an astronomers infrared telescope is able to detect radiation with a wavelength of…

answer the following. (a) an astronomers infrared telescope is able to detect radiation with a wavelength of 4.39×10^(-6) meters. write this number in standard notation. (b) the diameter of neptune at its equator is approximately 49,500 kilometers. write this number in scientific notation.

answer the following. (a) an astronomers infrared telescope is able to detect radiation with a wavelength of 4.39×10^(-6) meters. write this number in standard notation. (b) the diameter of neptune at its equator is approximately 49,500 kilometers. write this number in scientific notation.

Answer

Explanation:

Step1: Convert scientific - notation to standard notation

The scientific - notation $4.39\times10^{-6}$ means moving the decimal point 6 places to the left. So, $4.39\times10^{-6}=0.00000439$ meters.

Step2: Convert kilometers to scientific notation

To write 49500 kilometers in scientific notation, move the decimal point 4 places to the left. So, $49500 = 4.95\times10^{4}$ kilometers.

Answer:

(a) 0.00000439 meters (b) $4.95\times10^{4}$ kilometers