Force f with arrow = (9.0 n)i hat − (9.0 n)k acts on a pebble with position vector r with arrow = (0.90 m)j − (1.2 m)k relative to the origin. in unit-vector notation, what are the following? (a) the resulting torque on the pebble about the origin

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space