Where does the energy of water at the top of the waterfall come from?

The perceived frequency of a sound wave.

Rana writes a summary about a mass on a spring in simple harmonic motion as it moves upward from the equilibrium position toward the maximum positive displacement.

J. J Thomson's experiments provided evidence that an atom A. is the smallest particle of matter B. has a positive charge C. contains negatively charged particles D. has a negative charge

A conical container of radius 10 ft and height 40 ft is filled to a height of 36 ft of a liquid weighing 60.6 lb divided by ft cubed.

1. what planet/star is the center of the solar system 2. shape of orbits, 3. based upon religion or science, 4. how many planets are in each model and their names, etc ... 5. Give lots of detail, you can always include more than necessary.

Resistors in parallel together contain less resistance than resistors in series together. Create an analogy to explain this phenomena and post it here.

Unlike the idealized voltmeter, a real voltmeter has a resistance that is not infinitely large. part a a voltmeter with resistance rv is connected across the terminals of a battery of emf e and internal resistance r.

The acceleration of an object is the slope of its velocity-time graph. True False

When a cannon fires a cannonball, the cannon will recoil backward because the?

True or False: As we learn more about organisms how we classify them can continue to change. O True O False