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What does 19c plus 17c plus 13c equals?
49c
19c plus 31 equals 26c - 74?
Subtract 19c from each side: 31 = 7c - 74Add 74 to each side: 105 = 7cDivide each side by 7: 15 = cCheck: Does 19 x 15 + 31 = 26 x 15 - 74?ie 285 + 31 = 390 - 74?ie 316 = 316? Yes, job done.
If the temperature was -25c and rose 19c and then fell 8c?
Yes, it could do that in very cold environments.
When did you standardise measurements and units?
I didn't - but the history of standard measurement units goes back centuries. The drive to make all countries uses the SI units for trade, science and engineering is very recent and continuing. A parallel development is that of standard screw-threads and fastenings dimensions, pioneered particularly by the 19C British engineer Sir Joseph Whitworth.
An electron has a velocity of 3 x 10 to the 6th power meters per second perpendicular to a magnetic field of 2T what force and acceleration does the electron experience?
The equation for magnetic force is: F = q(v × B) Thus; F = (1.60 × 10 -19C)(3 × 106 m/s)(2 T) = 9.6 × 10-13 N F = ma a = F/m = (9.6 × 10-13 N)/(9.11 × 10-31 kg) = 1.05 × 1018 m/s2
