Q: Answer the following question given this paragraph: Figure 6.11 The frictional force supplies the centripetal force and is numerically equal to it. Centripetal force is perpendicular to velocity and causes uniform circular motion. The larger the F c , the smaller the radius of curvature r and the sharper the curve. The second curve has the same v , but a larger. Q: What force is perpendicular to velocity and causes uniform circular motion? Choices: - centripetal torque - circular friction - tangential force - centripetal force A:
A: centripetal force

Q: Answer the following question given this paragraph: If you look up close, you would be able to see grains of sand. From this distance, you can see different layers from where the sand was laid down. This rock is sandstone. The sand grains are cemented together to make sandstone. Sandstone is a common type of sedimentary rock. Q: What type of rock is a sandstone? Choices: - igneous rocks - landform rocks - limestone rocks - sedimentary rocks A:
A: sedimentary rocks

Q: Answer the following question given this paragraph: Subduction of a plate leads to melting and volcanism. Q: What does subduction of a plate lead to? Choices: - bending and volcanism - pressure and volcanism - swell and volcanism - melting and volcanism A:
A: melting and volcanism

Q: Answer the following question given this paragraph: The smallest and lightest alcohols (methanol, ethanol, propanol) are completely soluble in water in all proportions. In a solution, the hydroxyl groups of alcohol molecules and the water molecules form hydrogen bonds with each other, resulting in complete miscibility. However, as the length of the carbon chain increases, the solubility decreases. The solubility of 1-butanol is 7.4 g per 100 g of water, while that of 1-pentanol is 2.7 g per 100 g water, and 1-octanol is 0.06 g per 100 g water. The carbon chain portion of the larger alcohol molecule is nonpolar and leads to the decreased solubility of the overall compound. Q: The smallest and lightest alcohols (methanol, ethanol, propanol) are completely soluble in? Choices: - gasoline - oil - argon - water A:
A: water