What is the cause of brownian motion?
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What is the advantage of fixed pulley?
How d o the radio-waves pass through walls ?
Why is the apparent altitude of a star increased by reflection in atmosphere ?
Explain what is the homogenous?
What is master oscillator?
when does one exert greater pressure on ground during walking or standing? why ? what happends to the period of a simple pendulum taken into a deep mine
What is the order the following from the worst electrical conductor to the best electrical conductor: glass, rubber, iron, dry wood:
while climbing a hill we bend forward please explain the reason for bending
Why do you not collapse under the pressure created by the atmosphere?
What is Absolute humidity ?
Why current is denot with I ?
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.