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ATQ, 56 × 18 + ? × 21 – 49 × 12 = 63 × 26 1008 + ? × 21 – 588 = 1638 ? × 21 = 1638 + 588 – 1008 ? × 21 = 1218 ? = 58
Which of the following is true regarding the periodic table?
What principle/law explains the working of the hydraulic brakes in automobiles?
A nucleus X of mass number 238 undergoes 3 α-decays and 2 β⁻-decays successively. The mass number and atomic number of the resulting nucleus Y are:...
Muscle fatigue is due to the accumulation of
Speed of sound in air is unaffected by change in :
What is the name of the reaction in which acid reacts with base to form salt and water?
A body of mass 6 kg accelerates from 6 m/s to 18 m/s in 3 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).
What is the main chemical used in the production of matchsticks?
The last phase of which disease is known as "lockjaw"?
A spring of spring constant 500 N/m is compressed by 5 cm. The potential energy stored is:
