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A vector describes both magnitude and direction, whereas a scalar only describes the magnitude. A common example is speed and velocity. Speed is a scalar, it describes only how fast something is going and...
stars begin as a giant cloud of gas which is also a protostar. gravity will pull the gas in on intelf which increases heat and pressure to such great quantities that nuclear fusion can begin. hydrogen is ...
Firstly, we must set-up an experiment and would need the following apparatus: The cell, a voltmeter, an ammeter and a variable resistor (a rheostat for this example). Setup the experiment so that the cell...
The moment of a couple is the force times the perpendicular distance between the lines of action of the force.
Horizontal: T1 sin θ1 = T2 sin θ2Vertical: T1 cos θ1 + T2 cos θ2 = w
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