ILL GIVE BRAINLIST FOR CORRECT ANSWERS NEED HELP ASAPPP

1.the best description of amplitude and wavelength of a wave that is tall and far apart.
a. high amplitude and long wavelength
b. low amplitude and low wavelength
c. high amplitude and low wavelength
d. low amplitude and high wavelength

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.