During the motion of a projectile fired from the earth surface, _______
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The power of an earthquake is expressed in terms of a magnitude on a scale called __________ scale.
When an unbalanced force acts on an object
Unbalanced forces are the forces which causes change in motion of the object. It sets the object in motion and may cause the object to move. If the object is already in motion, it changes the speed and direction of the object.
The washing machine works on the principle of ____________
Supercooling is cooling of liquid _____.
The absolute refractive index of any medium is always:
A person lifts luggage of 20 kg from the ground and puts it on his head 2 in above the ground. Calculate the work done by him. (g = l0 )
Which one of the following is the correct sequence of passage of light in a compound microscope?