the barometric height at sea level is 76cm of Mercury while at a point of Mercury on a highland it is 74 cm of mercury .what is the altitude of the ?(take g 10m/s² density of mercury 13600kg/m³ and density of air is 1.25kg/m³​

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

If a simple machine reduces the strength of a force, what must be increased?

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?