What are the values for an acid? A base? Neutral?

Sound waves have relatively long wavelengths. We can hear people around the corner before we can see them. Which wave behavior does this illustrate?

Give an example in which the electrical energy changes to light energy

Are energy transformations always efficient

A spherical balloon has a radius of 8.35 m and is filled with helium. how large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 800 kg? neglect the bouyant force on the cargo volume itself.

A boat moves through the sea. There is a 3000 N force to the west on the boat. There is a 1000 N force to the south on the boat. Determine the magnitude and direction of the resultant force on the boat. Draw a vector diagram of these forces to scale

Volcanic mountains can only form on the ocean floor? True False

If you push against a stationary object for 10 seconds, you have performed an: a. eccentric exercise. b. isokinetic exercise. c. isometric exercise. d. isotonic exercise

Does the size of the particles change as the substance changes state?

If a ball is thrown vertically into the air in the presences of air resistance, would you expect the time during which it rises to be longer or shorter than the time during if falls?

The process of deformation due to plate movements that changes earth's surface is called