Physics
A man standing at the top of a tower has two spheres A and B. He drops sphere A downwards and throws sphere B horizontally at the same time. Which of the following is correct ?

B will reach the ground first.
Both the spheres will reach the ground simultaneously.
The question is incomplete because the masses of the spheres are not given.
A will reach the ground first.

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Physics
Which of the following occurred first ?

Albert Einstein propounded the General Theory of Relativity
Max Planck unveiled the Quantum Theory
Wright Brothers successfully flew an aircraft
Guglielmo Marconi sent out the first wireless signals

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