Calculate the number of the aluminium ions present in 0.051 grams of Aluminium oxide.

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Abus decreases its speed from 80km/h to 60km/h. find the acceleration of bus. answer this question fast.​

A3cm cube of iron had one face at 100°c and other in the block of ice at 0°c. if k of iron=0.2 cgs units and l for ice is 80 cal/gm then yhe amount of ice to that melts in 10 minutes is

Two objects having equal masses are moving with uniform velocity of 2m/s and 6m/s respectively calculate the ratio of their kinetic energies