How long does it take for light to travel through matter in m/s

Which substance has neutral ph?

Suppose that a car traveling to the west (-x direction) begins to slow down as it approaches a traffic light. Which statement concerning its acceleration?

A woman exerts a horizontal force of 10 pounds on a box as she pushes it up a ramp that is 4 feet long and inclined at an angle of 30 degrees above the horizontal. Find the work done on the box.

Amy throws a softball through the air. what are the difference forces acting on the ball whilt it's in the air?

What is the equation that relate electric potential (voltage) to electric field?

Is the following sentence true or false? Two atoms of the same element can have different numbers of protons.

Definition of mechanical weathering

If you double the force of an object what happens to the acceleration?

A particle (mass - 5 g. charge 30 mC) moves in a region of space where the electric field is uniform and is given by Ex 4.8 N/C, Ey-E. 0. If the velocity of the particle att-O is given by v,-40 m/s V, v-0, what is the speed of the particle at t3 s?

When the Egyptians noticed this celestial body rising before the Sun it indicated to them the coming of the Nile flood.