A shooter wants to fire a bullet in such a way that its horizontal range is equal to three times its maximum height. At the what angle should he fire the bullet to achieve this?
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2006
In a gas experiment, if the volume of the gas is plotted against the reciprocal of the pressure, the unit of the slope of the resulting curve is
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2006
A mirror of weight 75N is hung by a cord from a hook on the wall. If the cord makes an angle of 30o with horizontal, the tension in the cord is
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2006
In the diagram above, the pressure of the gas is
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2006
The frequency of the wave in the diagram above is
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2006
A progressive wave equation is represented by y = a sin(150 πt - πx/4). if the phase difference of a progressive wave is 45°, the value of x in the equation is
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2006
An engine of a car of power 80 kW moves on a rough road with a velocity of 32 ms-1. The forces required to bring it to rest is
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2006
If two charged plates are maintained at a potential difference of 3 kv, the work done in taking a charge of 600µc across the field is
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2006
The instrument that measures both ac and dc is called
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2006
A conductor has a diameter of 1.00mm and length of 2.00m. If the resistance of the material is 0.1Ω, the resistivity is
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2006
A radioactive substance has a half life of 20 days. What fraction of the original radioactive nuclei will remain after 80 days?