What are the two criteria necessary for a substance to be considered a magnet

The radius RH of a black hole, also known as the event horizon, marks the location where not even light itself can escape from the black hole.

Does the air exert a buoyant force on all objects in air or only on objects such as balloons that are very light for their size?

3. When a species changes over time and that change aids in survival, we say that the species has _. o lost failed assimilated adapted

Write 5 sentences on the importance of including vegetables in your diet.

7. You are floating motionless on a rubber raft in thelmiddle of a pool. A friend forms a wave by slapping the water every second. Will the wave carry you to the edge of the pool? Explain your answer.

What happens to the frequency of a wave of you increase the speed of the wave?

An elevator moving down passes its neighbor, an elevator moving up. Their speed relative to one another is 8 m/s.

Write the equation that links current, potential difference, and resistance

As we move from left to right across the periodic table, what is the general trend? A) Atomic radii increase. B) Electronegavitiy decreases. C) Nuclear shielding increases. D) Metallic character decreases.

A net force of 200 newton's is applied to a wagon for 3 seconds. this causes the wagon to undergo a change in momentum of