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A helium atom is in a galaxy travelling at a speed of 4.89 x 106 m/s away from the Earth.
An astronomer on Earth observes a frequency from the helium atom of 6.52 x 1014 Hz.
What frequency of light is emitted from the helium atom?
Q. Give the differences between hard X-rays and soft X-rays.
A 20 Ω non-reactive resistor is connected in series with a coil of inductance 80mH and negligible resistance. The combined circuit is connected to a 200V, 50Hz supply. Calcula
Rolling Disc Imagine a rectangular tray lying flat on a horizontal table. Suppose in which the tray has vertical sides, and this a plate (or disc) lies flat on the table and r
The value of G, the universal gravitational constant, was measured experimentally by: a) Newton b) Cavendish c) Copernicus d) Kepler Ans: The value of th
Q. Illustrate what is moment of inertia? Answer:- Moment of inertia is the term utilized to measure or quantifies the amount of mass located at an object's extremities. Fo
What are the magnitude and the sign of a point charge that experiences a force of 0.48 N east when placed in an electric field of 1.6 x 10 5 N/C west? Normal 0
Radial is exactly centripetal force?
Do objects of different weights fall with same acceleration on the earth? Yes , objects fall with the similar acceleration regardless of their weights at the surface of earth,
what is the histroy of the periodic table
Why bulky group present at axial position of chair or boat conformer is less stable compared to equitorial position? Ans) Let the bulky group has a large mass M. suppose it is
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