Tuesday, November 28, 2017
The diagram shows an oscilloscope screen displaying two signals. Signal X has a frequency of 50 Hz and peak voltage of 12 V.
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Question 4 The diagram shows an oscilloscope screen displaying two signals. Signal X has a frequency of 50 Hz and peak voltag...
1 comment:
Monday, November 27, 2017
The diagram shows a cathode-ray oscilloscope (c.r.o.) being used to measure the rate of rotation of a flywheel.
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Question 3 The diagram shows a cathode-ray oscilloscope (c.r.o.) being used to measure the rate of rotation of a flywheel. Th...
Saturday, November 25, 2017
A strong wind of speed 33 m s-1 blows against a wall. The density of the air is 1.2 kg m-3. The wall has an area of 12 m2 at right angles to the wind velocity.
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Question 1 A strong wind of speed 33 m s -1 blows against a wall. The density of the air is 1.2 kg m -3 . The wall has an area of 1...
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