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9.8-g lead bullet with a muzzle velocity of 3.90 x 102 m/s is stopped by a wooden block.
What is the change in temperature of the bullet if one-fourth of its original kinetic energy goes into heating the bullet?
Friction is a microscopic constant and so macroscopic level area does not matter. But area would matter if the object we''re putting under study was microscopic, which isn''t in o
x-ray and e ray
tunnel diode
A 9.0-kg crate sits on a level, rough floor. A 61-N force is required just to begin it moving. What is the size of the coefficient of maximum static friction?
Gold: Atomic number 79 Symbol Au Atomic weight 196.9665 discov
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A sodium cation has different number of electrons from: (1) O 2- (2) F - (3) Li + (4) Al +3 Ans: Li +
State Gauss' theorem in electrostatics. Using this theorem, derive the expression for the electric field intensity at any point outside a uniformly charged thin spherical shell.
A toy train moves in a circle of 8 meters radius with a speed of 4 meters per second. What is the magnitude of the acceleration of the train? Ans: The magnitude of the acce
factors affecting emf of cell
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