In lab you find that a 1 -kg rock suspended above water weighs $10 \mathrm{~N}$. When the rock is suspended beneath the surface of the water, the scale reads $8 \mathrm{~N}$. c. What is the scale reading when the rock is released and rests at the bottom of the container?

After reading your report, your supervisor was able to determine the equation for the height of the stack for the specific cup that the company will manufacture. The company will use the function $S(n)=0.5 n+12.5$. If you add 2 cups to a stack, by how much does the height of the stack increase?

The painting is a self-portrait showing the artist, Mary Hoover Aiken, reading her own fortune in a café on Ibiza, an island off the coast of Spain. Describe what you see in the picture, starting with the image of the artist and moving from near to far (or far to near).

Why will hot water flow more readily than cold water through small leaks in a car radiator?

In the hydraulic arrangement, the multiplication of force is equal to the ratio of the areas of the large and small pistons. Some people are surprised to learn that the area of the liquid surface in the reservoir of the arrangement is immaterial. What is your explanation to resolve this confusion?

Why were so many vertical columns needed to support the roofs of stone buildings in ancient Egypt and Greece?

What is the volume of a sugar cube that measures $1 \mathrm{~cm}$ on each side? What is the cross-sectional area of the cube? The total surface area?

Consider these three animals: A. dog, B. horse, and C. elephant. Rank them, from highest to lowest, for their a. surface areas. b. masses. c. weights. d. volumes. e. surface area per weight.

What is the volume of a sugar cube that measures $1$ cm on each side.

In 2009 , one of the U.S government's bailout packages was $\$ 700$ billion when gold was worth $\$ 800$ per ounce ( $\$ 28.40$ per gram). Calculate the mass in grams of $\$ 700$ billion worth of gold. If this amount of gold were in the shape of a cube, how long would each of its sides be?

In the hydraulic arrangement, the larger piston has an area that is 50 times that of the smaller piston. The strong man hopes to exert enough force on the large piston to raise the $10 \mathrm{~kg}$ that rest on the small piston. Do you think he will be successful? Explain.

Why aren't heavier elements much larger than lighter elements?

Larger nuclear forces pull the electrons into closer orbits.
Larger gravitational forces pull electrons into closer orbits.
The larger positive charge in the nucleus pulls the electrons into closer orbits.
Larger magnetic forces pull electrons into closer orbits.

Why is kinetic energy a constant for a satellite in a circular orbit but not for a satellite in an elliptical orbit?

So you're having a run of bad luck, and you slip quietly into a small, calm pool as hungry crocodiles lurking at the bottom are relying on Pascal's principle to help them to detect a tender morsel. What does Pascal's principle have to do with their delight at your arrival?