What is the heterogenous?

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Order the following from the worst electrical conductor to the best electrical conductor? Glass, rubber, iron, dry wood

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explain principle of potentiometer

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assuming friction is negligible, if a lever has a mechanical advantage of 5, how much effort in newtons is needed to lift a 10 newton load?

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What is speed of sound at sea level?

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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.

3 Answers   ITESM,

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What is the musical sound?

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Explain the Laws of Thermodynamics ?

1 Answers  

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Tell me why does a tilted gyroscope not fall?

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Why are the mountains colder than the plains ?

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When a water pump falls to draw water, a bucket of water poured into it sets it working. Why ?

3 Answers  

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The magnitude of electrostatic force between two identical positive ions that are separated by a distance of 5.0 x 10– 10 m is 3.7 x 10–9 N. (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion?

2 Answers   College School Exams Tests, DELL, Sony,

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