Which friction is grater, statical or dynamical ?
In radio transmission, what does the acronym am stand for?
Explain the Mass and Weight ?
a ball of mass 500g moving with a velocity of 10m/s collides with another ball of mass 250g.after the impact,the second ball moved off with a velocity of 8m/s calculate the final velocity of the first ball.
USE OF PHYSICS
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Explain how do you separate hydrogen and oxygen gases in industrial electrolysis of water process?
When we go higher up, for how much distance does the temperature roughly decrease by 1oF
Which properties of waves are independent of each other?
What is the commercial unit of electrical energy ?
What is a thermal transformation?
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.
An ice-box is built of wood 1.75 cm thick, lined with cork 3 cm thick. If in the steady state the temperature of the inner surface of the cork is 0 ºC and that of the outer surface of wood is 12 ºC, what is the temperature of the wood-cork interface? The thermal conductivities of wood and cork are 0.2 W/m-K and 0.04 W/m-K respectively
How does the towel dry out hands ?