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KEEP REFRESHING.. ANSWERS TO BE POSTED SOON IN 30MINS CONFIRMED PHYSICS OBJ 1.A 2.C 3.C 4.D 5.A . 6.B 7.A 8.D 9.A 10.B 11.C 12. 13. 14.D 15.D 16.B 17.C 18.D 19.A 20.A 26.A 27.D 28.B 29.B 30.C 31.C 31.A 32.B 34.D 35.A 36.A 37.C 38.B 39.D 40.B 41.C 42.D 43.A 44.A 45.D 46.C 47.C 48.A 49.A 50.C 1a.)Impules=MLT^1 1b.)Acceleration=LT^2 1c.)Work=ML^2T^-2 5.)i. Space travel ii.Scientific research iii.Fire work 7 -is a cathode ray machine X is power supply AC-DC power Y should be d cathodes And Z should be d splitter 9a) i)Foundamental interval: is the value arbitrarily assigned to the difference in temperature between two fixed points (such as the ice point and steam point) on a temperature scale, in order to define the scale. ii)Thermal equilibrium: is a higher temperature object which is in contact with a lower temperature object that transfers heat to the lower temperature object. The objects will approach the same temperature, and in the absence of loss to other objects, they will then maintain a constant temperature. b) Uses of hydraulic press: - It is used in metal forming operations - For moulding ii) 8a) Net force: The net force is the vector sum of all the forces that act upon an object. It is also the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out. 8b) The law of conservation of linear momentum states that the total momentum of a system of particles remains constant, so long as no external forces act on the system. e.g Firing a bullet from a gun or a radioactive nucleus spontaneously emitting an alpha particle. Get more http://unitedtab.blogspot.com (5) -for exploration of space -it is used for war fare -it is used for launching of satellite (6) (a)doping is the process of producing an impure semiconductor by adding foreign elements to the pure semiconductor (b)Doping a semiconductor improves the number of charge carriers (3) -smoke -aerosol -dust particle (4) Given flux density(B)=0.217 Force(F)=9.6*10^-12N Speed(v)=? F=Bqv 9.6*10^-12= 0.12* 1.6* V V=(9.6*10^-12)/0.192*10^-19 =50*10^-12+9 v=50*10^7 =5*10^8ms^-1 (2) Velocity(u)=20ms^-1 Angle(tita)=40 degree At maximum height, h V^2=u^2 + 2gh U^2 sin^2 tita+u u= 20^2* (sin 40 degree)^2 u=20^2*(sin 4o degree) u=400* 0.3455 u=138.2ms^-1 (1) (a) impulse(I)=F*t F=ma= m(v/t)= M((d/t)/(t)) f=M(l/T)/T)= MLT^-2 I=MLT^-2 * T I=MLT^-1 (b) Acceleration(a)=v/t=(d/t)/t a=d/t^2= L/T^2= LT^-2 (c) WOrk(w)=f*d W=MLT^-2 * L W=ML^2T^-2
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| Article Name | WAEC 2016 Physics (Essay & Objectives) Answers Have Just Been Posted |
| Description |
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| Author Name | Head Admin |
| Published On | 4/12/2016 |
| Post Category |
education
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