gravitational potential energy is given by formula
![U = mgh](https://tex.z-dn.net/?f=U%20%3D%20mgh)
here we need to compare the gravitational potential energy of stone 2 with respect to stone 1
so we will say
![\frac{U_2}{U_1} = \frac{m_2gh}{m_1gh}](https://tex.z-dn.net/?f=%5Cfrac%7BU_2%7D%7BU_1%7D%20%3D%20%5Cfrac%7Bm_2gh%7D%7Bm_1gh%7D)
![\frac{U_2}{U_1} =\frac{m_2}{m_1}](https://tex.z-dn.net/?f=%5Cfrac%7BU_2%7D%7BU_1%7D%20%3D%5Cfrac%7Bm_2%7D%7Bm_1%7D)
given that
![m_2 = 4 m_1](https://tex.z-dn.net/?f=m_2%20%3D%204%20m_1)
now we have
![\frac{U_2}{U_1} = 4](https://tex.z-dn.net/?f=%5Cfrac%7BU_2%7D%7BU_1%7D%20%3D%204)
Gamma rays, x-rays, ultraviolet, infrared, microwaves and radio waves<span>. Together with visible light, all these </span>types<span> of radiation </span>make up<span> what we call the </span>electromagnetic spectrum<span> </span>
600 calories per hour
300 calories per half an hour
3 x 600 = 1800 calories in 3 hours
1800 + 300 = 2100
you burn 2100 calories in 3.5 hours
hope this helps
The kind of vegetation that alfisols support is a temperate forest. Alfisols develop under the temperate broadleaf deciduous forests. Broadleaf trees tend to be nutrient demanding, and their leaves are filled with major nutrient elements. The litter from this type of forest is not the acidic type, either.