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Inertia: the resistance an object has to a alter in its state of motion.
Newton's first law of motion declares that force is NOT required to keep an object in motion.
Slide a book across the table and watch it slide to a rest position. The book in motion on the tabletop does not come to a rest position due to the absence of a force; rather it is the presence of a force - the force of friction - that brings the book to a rest position.
what is radiation
Transform kinetic energy into vertical potential energy A pole vaulter performs the extraordinary feat of converting his forward kinetic energy to vertical potential energy. Us
Write any four characteristics of electromagnetic waves. Give two uses each of 1. Radio-waves 2. Micro-waves.
A ball moving with speed v collides with a horizontal smooth surface at an angle ? with normal to surface in the figure. If coefficient of restitution is ‘e’ , then find VELOCITY a
Friction of rough surfaces Place two pieces of sandpaper together. Notice the friction that is formed when one is rubbed against the other. Now put some grease among the pieces
On the planet Newtonia, a simple pendulum having a bob with mass 1.25 kg and a length of 185.0 cm takes 1.42 seconds, when released from rest, to swing through an angle of 12.5 deg
How much work has to be completed in assembling three charged particles q1= 2 micro coulomb, q2= 3 micro coulomb and q3= 4 micro coulomb at the vertices of a equilateral triangle o
"The volume of needed mass of gas at fixed pressure is directly proportional to the Kelvin's temperature of the gas".
First Law: It shows that the mass (m) of substance deposited at the cathode during electrolysis is directly proportional to the quantity of electricity (total charge q) passed by t
why we take large radius of curvature of lens
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