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Neutron possesses: (1)Positive charge (2)Negative charge (3)No charge (4)All are correct Ans: (3)No charge
How can we ger plane polarised light??
The mass of a string is 4.20 x 10 -3 kg, and it is stretched so the tension in it is 135 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength o
What is Conductors and insulators Conductors - one or more electrons from each atom in solid can move freely by body conducting electric charge (metals) Insulators - electro
Rydberg constant (Rydberg): A constant that governs the relationship of the spectral line features of an atom by the Rydberg formula. For hydrogen, it is about 1.097 x 10 7 m
calculate the acceleratio due to gravity on planet mercury if mass = 2.99 x 10 9to the power 23)kg and radius = 2.42 x 10( to the power 6) metres.
How much does automotive oil weigh? As rough guide engine oil generally weighs about 0.87 kg/litre or about 7.2 pounds per US gallon unfortunately a rough answer is the best th
In an amusement park ride called The Roundup, passengers stand inside a 19.0 -diameter rotating ring. After the ring has acquired sufficient speed, it tilts into a vertical plane.
faint, young sun paradox Theories of stellar evolution denote that as stars mature over the main sequence, they steadily grow hotter & brighter; calculations recommend that at
If a ball thrown horizontally with a velocity of 20m/s from a tower meters high, after how long will it strike the ground?
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