TOTAL: 50 MARKS. QUESTION ONE
(a) Define the terus
Torque
Lever
(b) Where must a 0,80 kN object be hung on a whim, horizontal, rigid 100-prestha
pushing up at one end supports tre-third as much as a woman pashming at the other the
situation is describe above is shown in the figure helew. The fome oferind by the Mini
represented by F. and that by the woman is 31.
16
SON
:) A uniform, 0.20-kN board of length L has two objects hanging from it: 300 Nexuty 13
one end, and 400 N at exactly 31/4 from the same end. What single additional to go the
board will cause the board to be in equilibrium?
16
TECTION TWO​

Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.