Question

The formula E = mc2 states that the equivalent energy (E) can be calculated as the mass (m) multiplied by the speed of light (c = about 3×108 m/s) squared. Write a program that accepts the mass of an object and determines its energy.

Topic	Python Programming
Type	Python Program
Class	11

Answer 1

The formula is given as E = mc²

Where E ⇒ energy is measured in Joule,

m ⇒ mass in Kilogram,

c ⇒ speed of light in m/s.

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#Program to calculate the equivalent energy of an object 
#asking for the mass in grams 

mass = float(input("Enter the mass of object(in grams): "))
 
#Speed of light is known and given in the question 
c = 3 * 10 ** 8
 
#calculating the energy, mass is divided by 1000 to convert it into kilogram 
Energy = (mass/1000) * c ** 2
 
#printing the output 
print("The energy of an object with mass",mass," grams ",Energy,"Joule.")

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