Many years ago, people believed that the sun rotated around the earth. Eventually, evidence was discovered that indicated this idea might not be accurate. What was the likely result of this discovery?

Why might an electromagnet be used to pick up old cars in junk yard?

Which one of the following is an example of an indicator? A. High concentration B. Presence of H - ions in solution C. Litmus paper D. Electricity

The zeroth law of thermodynamics describes the state where we can say what about the movement of heat between two substances?

Which of the following types of objects transmits light without scattering it? * opaque transparent translucent

Rock at the top of a 20 m tall hill the rock has a mass of 10 kg how much potential energy does it have

A crowd in a stadium is heard by a man standing 823.2 m away. The man hears the noise 2.5 seconds after the noise occurs. How fast was the sound traveling? What's the answer?

Which is not support the theory of plate tectonics?

the acceleration of a body in free fall depends on the place or the world in which it is, true or false?

A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. the square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.

A thin cylindrical shell and a solid cylinder have the same mass and radius. The two are released side by side and roll down, without slipping, from the top of an inclined plane that is 1.8 m above the ground.