Verify the claim that, in terms of gigaelectronvolts, the mass of an mass of an electron is 0.000511

0.5109989 MeV=mass of electron in (million electron volts)

0.5109989/1000=.0005109989 GeV (Giga=billion electron volts)

Hope it helps. 

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

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