What is the second most abundant element in the earth‟s crust?
A. Silicon
B. Aluminium
C. Sodium
D. Magnesium
If the Kinetic Energy of a body is increased by 300%, how much will its momentum increase?
A. 50%
B. 100%
C. 150%
D. None of these
Pressure at depth in fluid _________?
A. Increases
B. Decreases
C. Stay the same
D. None of these (more…)
What is the molecular mass of NaOH?
A. 39.996 g/mol
B. 29.996 g/mol
C. 19.996 g/mol
D. 09.996 g/mol (more…)