When two of these positively charged styrofoam packing peanuts are brought closer to each other what happens to the electrical force between them?

How does the gravitational force on the hammer compare with that on the nail?

In the Star Wars universe, the planet of Naboo has a high rugged mountain range, the Gallo Mountains, shown in the image below.  As is standard in maps “North” is at the top of the image. The water visible at the bottom of the image is part of a large ocean. We are going to apply the principles of position and time symmetry and assume that plate tectonics works the same on Earth and Naboo even though it is a long time ago in a galaxy far far way. The next two questions ask you to use your understanding of geologic processes to explain how such mountains would form.       Image Description Ocean extends along the bottom of the picture. Swamp is near the ocean between the ocean and the Gallo Mountains. Gallo Mountains extend from right to left across the image. Above the mountains are planes and more swamp.

How do we measure the mass of planets?

This graph shows variations in temperature over the last 400 thousand years. Image Description Graph of temperature difference versus thousands of years ago. At the start of the graph, the temperature difference line begins at 0 and drops to a negative 9 difference before gradually increasing until it peaks at 5 degrees around 120 thousand years before dropping back down to a negative 9 difference and gradually increasing until it peaks at 240 thousand years. This trend of dropping and increasing continues, with two more peaks seen at 320 thousand years and 410 thousand years. Based on the natural cycles found in the graph, how far in the future will the temperature once again be as warm as it is now?

The next two questions deal with this situation: Suppose you are playing baseball and hit the ball with the bat.

If an atom’s 2p orbitals are full, how many electrons does it have in those 2p orbitals? Be careful. The question asks how many 2p electrons the atom has, not how many TOTAL electrons the atom has.

As you stand on the escalator going from one floor to a higher one at constant speed, which of these statements best describes what is happening?

In the bottom, double-slit pattern shown above there are lots of small dark lines separating the band of red light into individual spots. The spots are not present in the top image. What causes these?

This picture below was taken in Death Valley, a dry basin in California.    US park service, public domain Which of these caused the features in the image?