questionedithistorytranslations

What is "c" in E=mc^2?

thermodynamic free energy
specific heat capacity
speed of light
Coulomb, unit of the electric charge
In words, energy equals mass multiplied by the speed of light squared.
Paweł Kołodziejczyk
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Correct this question
wikipedia → Mass–energy equivalence
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Answers by country

thermodynamic free energy
specific heat capacity
speed of light
Coulomb, unit of the electric charge
answers
flagthe Netherlands
0%
0%
100%
0%
24
flagFrance
6%
0%
93%
0%
16
flagRepublic of Ireland
7%
0%
92%
0%
13
flagSingapore
0%
8%
91%
0%
12
flagGreece
3%
3%
85%
7%
27
flagSwitzerland
8%
5%
78%
2%
37
flagthe United States
7%
6%
77%
4%
250
flagAustralia
7%
7%
77%
2%
40
flagMalaysia
5%
5%
77%
11%
18
flagCanada
10%
13%
76%
0%
30
flagthe United Kingdom
15%
4%
73%
5%
134
flagIndia
8%
9%
72%
7%
353
flagItaly
27%
0%
72%
0%
11
flagGermany
11%
6%
71%
7%
440
flagSpain
7%
0%
71%
7%
14
flagAustria
16%
2%
70%
6%
74
flagPoland
10%
13%
68%
6%
9395
flagPakistan
23%
3%
63%
6%
30
flagthe Philippines
13%
10%
51%
24%
29
flagNigeria
21%
0%
50%
28%
14

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