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The decrease of mass is related to the binding of the individual particles together inside the nucleus. Therefore every stable nucleus has a mass which is less than the total ma
Huygens wave theory: Huygen's wave theory is not correct in all respects. 2. It assumes simply that light energy is propagated as a wave. 3. At the time of his proposition
If the particles of a medium vibrate in the direction of wave motion the wave is known as longitudinal. a) It goes in the form of compression and rarefaction. b) A
The intermolecular forces (F) of attraction can be described as given: 1) Cohesion. The force of attraction among molecules of the same substance is known as the force of cohe
IN PHYSICS B OCR THE POTENTIAL DIVIDER AND CALCULATION ON LENS ARE TRICKY. HOW DO I APPROACH AND UNDERSTAND QUESTIONS?
a person holds of hay over his head for 30 min and gets tired . has he done some wirk or not? justify your answer
The nucleus of the element having atomic number 25 and atomic weight 55 will contain : (1 )25 protons and 30 neutrons (2) 25 neutrons and 30 protons (3) 55 protons (4)
What is time? 1. This is the question that each true scientist dreads to be asked especially in a public setting by extremely inquisitive young learners. We have learned to ca
A coil of inductance 318.3mH and negligible resistance is linked in series with a 200 resistor to a 240V, 50Hz supply. Calculate (a) The inductive reactance of the coil,
A 65g ball with a diameter of 3.1cm begins at rest and rolls down an incline. The angular acceleration of the ball is a constant 0.55rad/s2. ( I ball=(2/5)mr2 ) Calculate the net t
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