Explain what is the opaque?
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Mercury thermometer is constructed as shown in Figure The capillary tube has a diameter of 0.004 cm, and the bulb has a diameter of 0.250 cm. neglecting the expansion of the glass, find the change in height of the mercury column that occurs with a temperature change of 30.0 °C.
Why are the steam pipes and hot water pipes used for heating rooms, not fixed to the walls firmly at both ends ?
Why is it easy to turn over a leaf with a wet finger ?
Why dies the liquid not come out of the dropper, unless the rubber id Pressed ?
Why ate the telegraph wires kept a little loose ?
A coil of wire that produces a magnetic field is typically called ?
Why land breeze is caused ?
Why does sun appear flat during sunrise and sunset?
Give an example of transverse wave?
why are metals able to conduct current so well?
why we use Transistor?
When a person whirls a rock on the end of a string and maintains it in uniform circular motion, the force exerted on the rock is most accurately referred to as?