You decided to change your bedroom. You move your bed 1.5 meters across the room and the force you used to move the bed was 20 newtons. It takes you 5 minutes. How much power did you use?

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol