11 lines
214 B
Python
11 lines
214 B
Python
c = 299792458
|
|
|
|
while True:
|
|
try:
|
|
m = int(input('Please enter an integer mass in kg: '))
|
|
break
|
|
except ValueError:
|
|
print('Please ensure that your input was an integer!')
|
|
|
|
e = m * (c ** 2)
|
|
print(f'e = {e:,}J')
|