SECTION A (a) State the conditions for which 2-B is possible (2 marks)
(b) Giyen that A=2i+j. B=i-2; and C=31 -2k, obtain (Ax B C and AxlBxC) (10 marks)
Given that Dr=DF+(Dāxř+2ox DF+wxlāxi), mention the type of acceleration
corresponding to each component of this equation. If is constant what is Do? (8 marks)
dĀ
d
+őx, prove that the angular acceleration is the same in both the stationary and
dA
(d) Given that
dt
de
moving coordinate systems (all parameters retain their usual meanings) (5 marks)​

Fill in the blank. the number of each type of element in the compound (other than 1) is represented by a small number to the right of the element symbol.

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.

Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29×10 to the power of −11 m, the expected position of the electron in the atom.