A body starts from rest and falls vertically downwards in 2 s. What will be the velocity of the body upon striking the ground if
acceleration due to gravity, 9.8 m/s?.

The slope of a velocity time graph over any interval of time gives the during that interval

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.

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 3.00 ms . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?