The equivalent resistance of two or more resistors in series is
the sum of their individual resistances.
If these three are all in series, then they act like a single resistor
whose resistance is
(19.2 + 24.6 + 31.2) = 75 ohms.
Answer:
Acceleration, 
Explanation:
We are given with a velocity-time graph of an object that starts from origin. y axis is velocity and x-axis is time.
The slope of velocity-time graph gives acceleration of an object. Taking the slope of this graph.

So, the acceleration of the object is
.
The temperatures would change and the water would become luke warm <span />
Answer:
Explanation:
according to einstein's formulae E=mc2 1kg of mass is equivalent to (9joules when rounded off )
in this situation we ignore the bridge height and work hand in hand with the relativity and force
so...if you do the conversion you will find the suitable answer which is 16.9J