How long will it take a car to go from a complete stop to 44 km/hr if they are accelerating at 5km/hr

8.8 s. It will take the car 8.8 s to reach a speed of 44 km/h.

v = v_0 + at

t = (v - v_0)/a = (44 km/h – 0)/[5 (km/h)s^(-1) = 44/5s^(-1) = 8.8 s

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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