Question 15 There is a distance of 3.0 x10-1 meters between two metalic spheres. Each sphere has a charge of +2.0 x10-6 coulombs What is the magnitude of the electrostatic force on the two spheres?
A) 1.2 x 10-12 N
B) 4.4 x 10-11 N
C) 1.2 x 10-1N
D) 4.0 x10-11

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

How many atoms of nitrogen are in the chemical formula ni(w on