When mirror rotates by angle x, the reflected ray rotates by 2x
2x = 30°
x = 15° in anticlockwise direction
sharon kalunda answered the question on May 30, 2019 at 10:27
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Date posted: May 30, 2019. Answers (1)
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A force of 20N is applied on the foot pedal connected to a piston of area 0.0005m² and this...(Solved)
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Date posted: May 30, 2019. Answers (1)
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ii) State whether it will hit the traffic police officer or not.
Date posted: May 30, 2019. Answers (1)
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Date posted: May 30, 2019. Answers (1)
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Date posted: May 30, 2019. Answers (1)
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Date posted: May 30, 2019. Answers (1)
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ii) the maximum height reached by the target after the impact.
Date posted: May 30, 2019. Answers (1)
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A student performed an experiment to study the relationship between pressure and volume of a gas enclosed in a vessel.
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Date posted: May 30, 2019. Answers (1)
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(Take specific...(Solved)
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(Take specific heat capacity of water 4200J/kg/k, heat capacity of the kettle 450J/k, specific latent heat of vaporisation
of water = 2.3 × 106 J/kg)
Determine
i) Heat absorbed by the water.
ii) Heat absorbed by the electric kettle.
iii) Time taken for the water to boil.
iv) How much longer it will take to boil away all the water?
Date posted: May 30, 2019. Answers (1)
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Calculate the Velocity Ratio of the inclined plane.(Solved)
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Calculate the Velocity Ratio of the inclined plane.
Date posted: May 30, 2019. Answers (1)
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Date posted: May 30, 2019. Answers (1)
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Date posted: May 30, 2019. Answers (1)
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Date posted: May 30, 2019. Answers (1)
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Calculate the tension, T in the rope (Take g = 10N/kg)
Date posted: May 30, 2019. Answers (1)
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Draw a diagram...(Solved)
The diagram below shows a rectangular wire with loose thread tied in it and dipped in a soap solution to form a film.
Draw a diagram showing what will be observed when the film is broken at points X and Y.
Date posted: May 30, 2019. Answers (1)
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4800N. Determine...(Solved)
A car of mass 800kg moves on a circular track of radius 20m. The force of friction between the tyres and the tarmac is
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Date posted: May 30, 2019. Answers (1)
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Date posted: May 30, 2019. Answers (1)
- A density bottle was used to measure the density of liquid L and the following were the measurements taken
- Mass of empty bottle = 26g
-...(Solved)
A density bottle was used to measure the density of liquid L and the following were the measurements taken
- Mass of empty bottle = 26g
- Mass of bottle filled with alcohol (of density 800kg/m³) = 66g
- Mass of bottle filled with liquid L - 86g
Find the density of liquid L.
Date posted: May 30, 2019. Answers (1)