The horizontal component of the initial speed of a particle projected at 30° to the horizontal is 50 m\(^{-1}\). If the acceleration of free fall due to gra...

An electron of charge 1.60 x 10\(^{-19}\)C is accelerated under a potential difference of 1.0 x 10\(^{5}\) V. Calculate the energy of the electron in joules.

Explain plane polarized light

Use the diagram to answer question; Camphor is a chemical that sub-limes and interacts with water reducing the surface tension where it is put. Explain why t...

a) On what principle does lighting in a fluorescent tube operate? (b) State two factors which determine the colour of light produced in a fluorescent tube.

A ball bearing falls through a viscous liquid (a) Using a labelled diagram of a tall vessel, show all the forces acting on it (b) When will it attain termina...

(a) Define electrolysis. (b) Classify each of the following substances as an electrolyte or a non-electrolyte (i) sugar solution; (ii) kerosene; (iii) alkali...

A wire gradually stretched by loading it until it snaps. (a) Sketch a load-extension graph for the wire (b) Indicate on the graph the (i) elastic limit (E); ...

In an electrolysis experiment, the ammeter records a steady current of 1 A. The mass of copper deposited in 30 minutes is 0.66 g. Calculate the error in the ...