Saturday, June 26, 2021
An object of mass m travelling with speed v has a head-on collision with another object of mass m travelling with speed v in the opposite direction.
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Question 25 An object of mass m travelling with speed v has a head-on collision with another object of mass m travelling with speed v in t...
Wednesday, June 16, 2021
Which statement about electromagnetic radiation is correct?
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Question 26 Which statement about electromagnetic radiation is correct? A Waves of wavelength 5 × 10 -9 m are high-energy gamma rays....
Saturday, June 5, 2021
A monochromatic plane wave of speed c and wavelength λ is diffracted at a small aperture.
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Question 36 A monochromatic plane wave of speed c and wavelength λ is diffracted at a small aperture. The diagram illustrates succ...
Tuesday, May 25, 2021
A particle is following a circular path and is observed to have an angular displacement of 10.3°.
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Question 3 A particle is following a circular path and is observed to have an angular displacement of 10.3°. (a) Express this angle in...
Monday, May 17, 2021
A steel wire of cross-sectional area 15 mm2 has an ultimate tensile stress of 4.5 × 108 N m-2.
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Question 21 A steel wire of cross-sectional area 15 mm 2 has an ultimate tensile stress of 4.5 × 10 8 N m -2 . (a) Calculate the max...
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