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Places where friction occurs
Locate the places on several mechanical devices where parts rub together. Roller skates, pulleys and the wheels of toys often required oil. Try to find two similar bearings that required oil, such as those on a roller skate. Oil one and compare the ease with which it turns with the bearing that has not been oiled.
Copper constantan is used for measuring temperature up to (A) 1400 o C (B) 800 o C. (C) 1100 o C. (D) 400 o C. Ans: Copper constantan is used for meas
conservation laws A law that states that, in a closed system, the whole quantity of something will not enhance or reduce, but exactly remain the same; i.e., its rate of altera
Q. When a radar gun utter the pitch is 90 miles per hour at what point in the balls travel to home plate is the radar gun measuring the velocity? Answer:- The measu
what is inertial
If two lines of dissimilar metals are connected at their ends so as to form two junctions, then the resulting arrangement is known as a "Thermo couple".
(1) F or supplying power from on alternating current power grid to equipment which uses a different voltage. (2) Electrical power transmission over long dist
a) What is the magnitude of a point electric charge chosen so that the electric field because of it at a point 50 cm away has magnitude 2.0 NC¯¹ ? (b) Get a mathematical expre
State two conditions to obtain sustained interference of light In Young's double slit experiment, using light of wavelength 400 nm, in terference fringes of width 'X' are obtain
12 to 16 pages project on electrostatic shielding
The residual enthalpy of saturated CO2, as calculated from the SRK equation of sate, is given below The ideal gas heat capacity of carbon dioxide is = 33 J/mol/K and ca
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