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what is FrictionWhen we think about friction, there is one more place for energy to go - heat. When you push a book across a table, does the energy of the book change? Not if in the end, it is sitting still at the same height. Where did the energy from the work you did pushing the book across the table go? Into fighting friction, which does work but does not change the total energy of the book. It does no useful work. The energy used fighting friction goes into heat generated where the objects touch, the surface of the book and the surface of the table. Friction always uses up energy, because it always works against motion.
The mass of an atom is constituted mainly by: (1) Neutron and neutrino (2) Neutron and electron (3) Neutron and proton (4) Proton and electr
Can several fibers gives the same amount of light? No, some fibers do not give similar amount of light. If a no. of fibers or light guides are coupled similar illuminator, this
Use the mirror equation to deduce that: (a) an object placed between f and 2 f of a concave mirror produces are al image beyond 2f. (b) a convex mirror alwa
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(a) Potential energy : An electron operates some potential energy due to this found in the field of nucleus potential energy of electron in nth orbit of radius rn is given by
Earth's atmosphere is separated into four layers: The troposphere (0-10 km), the stratosphere (10-50 km), the mesosphere (50-80 km), and the thermosphere (80-500 km).
SKIPPING IS A WHAT TYPE OF MOTION
Which of the subsequent conditions must be met in order for a uniform magnetic field to exert a force on a particle? Ans: A charged particle has to be in a magnetic ground
It determines the probability of an electron occupying a state at an energy level E. This takes into account that a collection of electron must obey the Pauli Exclusion Principle.
My question is that if voltage is increased, the electrons will move faster and the distance between them is changed. Why?
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