7. What do mechanical waves require in order to transfer energy?

Which type of mass movement makes a pattern of wrinkles, or terraces, on hillsides? landside mudflow soil creep rock slide

What is the magnitude of a vector with components (15 m, 8 m) ?

What are the cons of using a cup made of plastic?

What is the term for a mirror with a flat surface? A. silver mirror B. plane mirror C. glass mirror D. reflecting mirror

Which statement is true of magnets? a. Elecromagnets are generally weaker than permanent magnets. b. Earth is an electromagnet. c. A magnet always has a north pol, and may or may not also have a south pole. d. Permanent magnets can be turned off.

If an object moving in one direction slows down, then the direction of its acceleration is the same as the direction of its motion.

How long does it take for light to travel from the sun to earth?

Two very small spheres are initially neutral and separated by a distance of 0.30 m. Suppose that 2.50 1013 electrons are removed from one sphere and placed on the other. (a) What is the magnitude of the electrostatic force that acts on each sphere?

Why is it important to balance a chemical equation? A. It is not important to balance a chemical equal B. To make sure you have the correct products C. To make sure you have the correct reactants D. To obey the law of conservation of mass

The presence of icicles hanging off the eaves of a wood-framed structure is most likely due to: heavy snow followed by a thaw. improper insulation in wall cavities. use of a poor-quality roof sheathing material. lack of proper roof ventilation.