A projectile is fired at an angle of 30° to the horizontal with a velocity of 40 m/s Calculate the velocity attained after 1 s. [g = 10 m/s\(^2\)]

(a)(i) Define dew point. (ii) Explain why dew forms more quickly on the metal parts than on the rubber parts of a bicycle placed in the open overnight. (b)(i...

The load-extension graph of an elastic material is illustrated below. Use the graph to determine the work done in stretching the material

(a) Name two artificial satellites. (b) A geostationary satellite moves in an orbit of radius 6300 km. Calculate the speed with which it moves in the orbit. ...

The circuit diagram below is a simple current rectifier circuit. Use it to answer the questions that follow: (a) State the function of each of the parts labe...

State three observable phenomena where a particle behaves like waves. State the scientific principle underlying the operation of fibre optics. (b) Explain ea...

(a)(i) State Hooke's law. (ii) A spring has a length of 0.20 m when a mass of 0.30 kg hangs on it, and a length of 0.75 nm when a mass of 1.95 kg hangs on it...

Explain the wave-particle duality of light. (b) A particle of wavelength 4.2x 10\(^{-11}\)m travels (a) With a momentum of 1.6 x 10\(^{-23}\) kg m/s, Determi...

(a)(i) Define each of the following terms as it relates to converging lenses (i) focal length; (ii) optical Centre. (iii) Draw a ray diagram to illustrate ho...