If the net work done on a certain object is zero, make a statement concerning its speed?
What will be an ideal response?
If the net work done on an object is zero, it follows that its change in kinetic energy is also zero. Therefore, its speed remains constant.
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The LCMs of PMMA cannot easily slide past each other at room temperature, because of _________hindrance.
Fill in the blank(s) with the appropriate word(s).
The force of a falling apple hitting the ground depends upon
A) the speed of the apple just before it hits the ground. B) the time of contact with the ground. C) whether or not the apple bounces. D) all of the above
With what color light would you expect to be able to see the finest detail when using a microscope?
A) red, because of its long wavelength B) yellow, because of its intermediate wavelength C) blue, because of its shorter wavelength D) The color does not matter.
Suppose you live on the near side of the Moon in the crater Copernicus. How often will the Sun set below your horizon?
a. Every 12 hours b. Every 24 hours c. Every 29.5 days d. Never