Which will you hear as the highest pitch? a sound wave with frequency of 10,000 Hz b sound wave with frequency of 30,000 Hz c sound wave with frequency of 15,0000 Hz d sound wave with frequency of 50 Hz

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.