What is the frequency of an Electromagnetic wave has with wavelength 2.94 x 10^-8 cm?

What energy is it when you flip on a switch on a lamp

What is the common name for the compound shown here? enter the common name of the compound shown?

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.