A particle with charge Q is on the y-axis a distance A from the origin and another particle with charge q is on the x-axis a distance D from the origin. The value of D for which the x component of the force on the second particle is the greatest is:A) 0B) AC) √2AD) A/2
E) A√2

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.

Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.