What is the force between two small charged spheres that have charges 2x10 (power - 7) c and 3x10 (power - 7) c and are placed 30 cm apart in air?

gravity increases proportionally with mass and it decreases as the square of the distance between two masses true false

Which of the following is a mixture: a. air c. water b. salt d. sulfur

What uses of iron are due to its chemical properties

While walking to work in Boston shortly after sunrise you notice that the water level in the bay is exceptionally low. Based on this very low low-tide and the dark cloudless sky last night, what is the current phase of the moon

The work done in pushing a tv set a distance of 2 m with an average force of 20 n is

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.

What is the angle between a rigid object and the force applied to it that yields torque using the equation T=Fd?

What is the difference between speed and velocity and give an example.