**Example: At the Earth’s distance from the sun, the intensity of the sunlight is about knowing that the radius of the earth’s orbit is m determine the approximate amount of mass lost by the sun as energy is being converted from the mass. Give the amount of .**

Draw a Picture | Knowns | Unknown |
---|---|---|

R= I= |
m=___\frac{Kg}{s} |

Make a shell or sphere around the sun. Make the shell have the same radius as the orbit of the earth. This helps you find the total power output of the sun

Area of a sphere (surface area) A= =

A=2.827

P=AI=

P=3.958W

Make a note of the units of power W=

Convert energy to mass using E=mc => Solve for mass

J

M=