(12ai)it causes change of state of matter. (ii)it increases the temperature of a matter. (iii)it increases the average kinetic theory of the molecules in the matter (12bi)when a boiling water is poured into a thick glass,the inner of the glass suddenly become hotter than the outer layer causing irregular expansion hence creating a non-uniform pressure in the structure of the glass material hence it cracks. (12bii)the claws of a cat is naturally designed to create the required frictional force necessary for locomotion as a result of grip.but on a polished floor where gripping is impossible,hence,frictional force is minimal (12ci) the pressuere law states that the pressuere of a fixed mass of a gas at constant volume is directly proportional to the temperature. (12cii) given T1+20degrees=20+273=293k T2=? P1=76cmHg p2=69cmHg p1/T1:- p2/T2 76/293=69/T2 76*T2=69*293 T2=69*293=266k T2=-7degree (15a) This is because neutron is very light when compared with alpha particle (15a) This is because neutron is very light when compared with alpha particle (15b) i. They are negatively charged ii. They can cause florescent iii. They can ionize gases at high temperature iv. They are fast moving electron
Posted on: Thu, 12 Sep 2013 14:33:37 +0000
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