Answer:
hey answer in the comment section
Explanation:
Earth rotates in prograde mation.As viewed from the north pole star Polaris.Earth turns counterclockwise,, the north pole is point in the northern,, Hemisphere where Earth's Axis of rotation meets it's surface
Answer:
force=12000
Explanation:
F=m*a aka force equals mass times acceleration so 800*15=12000
The basic relationship between frequency and wavelength for light (which is an electromagnetic wave) is
![c= f \lambda](https://tex.z-dn.net/?f=c%3D%20f%20%5Clambda)
where c is the speed of light, f the frequency and
![\lambda](https://tex.z-dn.net/?f=%5Clambda)
the wavelength of the wave.
Using
![\lambda=4.5 \cdot 10^{-7} m](https://tex.z-dn.net/?f=%5Clambda%3D4.5%20%5Ccdot%2010%5E%7B-7%7D%20m)
and
![c=3 \cdot 10^8 m/s](https://tex.z-dn.net/?f=c%3D3%20%5Ccdot%2010%5E8%20m%2Fs)
, we can find the value of the frequency:
The molar mass of ammonium sulphate [(NH4)2SO4] is 132.17 g (option E). Details about molar mass can be found below.
<h3>How to calculate molar mass?</h3>
The molar mass of a substance can be calculated by adding the atomic masses of the elements in the compound.
According to this question, the atomic mass of nitrogen is given as 14.01, hydrogen is 1.01, sulfur is 32.07, and oxygen is 16.00.
The molar mass of ammonium sulphate is as follows:
[(NH4)2SO4] = [14.01 + 1(4)]2 + 32.07 + 16.00(4)
= 36.02 + 32.07 + 64
= 132.09
Therefore, the molar mass of ammonium sulphate [(NH4)2SO4] is 132.17 g.
Learn more about molar mass at: brainly.com/question/12127540
#SPJ1