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Explain The planets?
The planets:- We know in the solar system that the sun is set and that moving round it are a number of large spheres called as planets . These are nine planets in the universe, i.e. the Mercurr,Earth, Neptune, Pluto, Uranus, Saturn, Jupiter, Mars and Venus
Charge is the characteristic associated with matter due to which it produces and experiences electrical and magnetic effects.
The molar heat capacity of a gas at constant pressure is 18.7 J mol -1 K -1 . What is the heat capacity of 9.4 moles of this gas at constant volume ?
A 415V 3-phase a.c. motor has a power output of 12.75kW and operates at a power factor of 0.77 lagging and with an ef?ciency of 85%. If the motor is delta-connected, verify
The conductivity of copper is less than that of silver by (A) 5 - 10 %. (B) 50 - 60 %. (C) 80 - 90 %. (D) 20 - 30 %. Ans: The conductivity of copper
The half-life of an isotope of an element is 5 days. The mass of a 10 gram sample of this isotope remaining after 20 days is: a) 0.312 grams b) 0.625 grams c) 1.25 g
WHY Surface tension increases when an highly soluble SUBSTANCE is dissolved in water WHILE IT DECREASES WHEN an weakly soluble substance is dissolved in water
The vapour pressure of a substance at 20.0 o C is 38.1 kPa and its enthalpy of vaporisation is 49.6 kJ mol -1 . Estimate the temperature at which its vapour pressure is 80.0 k
Q. Which of the following isn't true of Guglielmo Marconis experiments on wireless transmission Answer:- A) In 1901 he broadcasted a signal from Newfoundland to England
what is specific gravity
What is black hole
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