What is sonar ( sound navigation and ranging )?
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Explain what instrument is used to measure volume?
What is Caustic soda ?
Why does a glass filled with water shatter when you run your finger along the rim of the glass?
A Transverse wave travels along Z-axis. The particles of the medium travels along??
Explain what formula is most appropriate to compute the kinetic energy of a block of ice sliding down an inclined plane?
Explain what happens when you travel across the dateline?
define rectilinear propagation of light?
What is acoustics?
What is speed of sound at sea level?
What is the name for the physical constant with a value of 6.62 x 10-27 erg seconds?
Mercury is a better barometric fluid than water because?
When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts a) In the backward direction on the front wheel and in the forward direction on the rear wheel. (b) In the forward direction on the front wheel and in the backward direction on the rear wheel. (c) In the backward direction on both the front and rear wheels. (d) In the backward direction on both the front and rear wheels.