Study the thin-layer chromatography results for two samples, a and b. the distance from the base line to the center of spot a is 2.8 cm. the distance from the base line to the center of spot b is 4.2 cm. the distance from the origin (base line) to the solvent front is 6.8 cm. calculate the values for both spots. report your answer to two significant digits.

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

Which notation is used to represent an alpha particle? a. b. c. d.