Experimental Question: How does a change in medium effect light?:

I need a hypothesis:

Answer for 34pts

An audio speaker producing a steady sound at an outdoor concert is 24 ft away from you. If you move to a position where the speaker is 85 ft distant, by what factor will the amplitude of the sound change

A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37° above the horizontal. If the mass of the box and the books is 40.0 kg, what is the acceleration of the box?

How does free energy challenge the scientific definition of energy?

You observe a spiral galaxy with a large central bulge and tightly wrapped arms. It would be classified a

What two types of atoms make a Covalent bond

Which is located farther west the central valley or the coast ranges?

Question: If the object is falling for 3 seconds, predict the distance the object falls. If a small amount of air resistance is present, predict what this would do to the distance the object falls.

Burning coal produces which type of gas? carbon dioxide oxygen nitrogen hydrogen

A blender uses 1500 joules of energy in 5 seconds. What is the power rating of the blender

What is the centripetal force of an object undergoing uniform circular motion when its radius is doubled and its speed remains constant? A. the same as before B. twice as great as before C. half as great as before D. four times as great as before