Asmall shpher with charge q_a = +5.70 mu c is at the origin, and a second sphere with charge q_b = -3.20 mu c is loaded at x = 2.50 m. at what finite distance from the origin is the electric field equal to zero?

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.

helium

oxygen

neon

sodium