Light travels fastest in?
A. Vacuum.
pH of solution is defined as?
A. Hydrogen ion concentration
B. Log of hydrogen concentration
C. Minus log of hydrogen concentration
D. Molar hydrogen concentration
How does light normally travel?
A. In a straight line.
In projectile motion, the only force of significance that acts on the object is?
A. Gravitational force
B. Electromagnetic force
C. Frictional force
D. None
26(27+29+32)= ?
A. 2288
If 78.36= 78.36 xy , then which of the following is correct?
A. x= 1 and y= 1
B. x= 1 and y= 0
C. x= 0 and y= 1
D. x= 0 and y= 0