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* Question 1 : Sound A has intensity 10 times the threshold if hearing : sound B has intensity 100 times the threshold of haring . How much louder do we perceive sound B ? * Ques
An electron has momentum that is 90 % larger than its classical momentum. Find speed of electron. Classical momentum Relativistic momentum Here m is effective mass Given, Spe
A 0.040-kg bullet is fired into a 3.50-kg block of wood, which was initially at rest. The bullet remains embedded within the block of wood after the collision. The bullet
why moseley work on electron x ray spectrum
Q. What is the longest lasting synthetic periodic element? Answer:- A excellent candidate would be curium 247 (247Cm) which has a half-life of 1.56 × 107 year
The most probable radius (in pm) for finding the electron He + is: (1) 0.0 (2) 52.9 (3) 26.5 (4) 105.8 Ans: (c)26.5
Q. In the given circuit, calculate the potential differences across each resistor Solution : i) R s = R 1 + R 2 + R 3 = 10Ω ii) Current in circuit I = V/R s
A monkey of mass m climbs a rope slung over a light frictionless pulley.The opposite end of the rope is tied to a block of Mass M lying on a smooth horizontal plane.Find the accele
I am a impaired student and need a step by step solution for this problem. A32.0 m steel wire and a 23.0 m copper wire, both with 1.00 mm diameters, are connected end to end and
There are thousands of insulating materials available in the market. Insulations technology is one of the few branches where the number of materials is very large. Any special requ
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