During the electrolysis of copper (II) tetraoxosulphate (VI) solution, a steady current of 4.0 x…
During the electrolysis of copper (II) tetraoxosulphate (VI) solution, a steady current of 4.0 x 10(^2) A flowing…
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Define angle of contact (b) Draw sketches to show angles of contact for a…
(a) Define angle of contact (b) Draw sketches to show angles of contact for a capillary tube dipped…
Differentiate between interference and polarisation as applied to waves. (b) Mention two uses of…
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A force of 40 N is applied at the end of a wire 4m long…
A force of 40 N is applied at the end of a wire 4m long and produces an…
Define (i) Elasticity; (ii) Young’s modulus; (iii) Force constant.
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a) Define the term surface tension (b) Calculate the force required to lift a needle…
a) Define the term surface tension (b) Calculate the force required to lift a needle 4cm long off…
State any three properties of matter which are common to all substances.
State any three properties of matter which are common to all substances. Explanation (i) Matter is made up…
What is a projectile? Give four examples of projectiles in everyday life
What is a projectile? Give four examples of projectiles in everyday life Explanation A projectile is an object…
A body of mass 0.6kg is thrown vertically upward from the ground with a speed…
A body of mass 0.6kg is thrown vertically upward from the ground with a speed of 20ms(^{-2}). Calculate…
When nitrogen (atomic mass = 14, atomic number = 7) is bombarded with neutrons,…
(a) When nitrogen (atomic mass = 14, atomic number = 7) is bombarded with neutrons, the collisions result…