Question

Part A

How much energy can be obtained from conversion of 1.8 gram of mass?

Express your answer to two significant figures and include the appropriate units.

E =

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Part B

How much mass could this energy raise to a height of 1.5 km above the Earth's surface?

Express your answer to two significant figures and include the appropriate units.

m =

Answer 1

A)

given

m=1.8g =0.0018kg

velocity of light c= $3*10^8$

B)

given

h=1.5km =1500m

$E=m*h*g$

$m=E/(h*g)$

$m=162000/1500*9.8$

$m=162000/14700$