The force acting on an object is said to be conservative if the work done by this force on the object is independent of the path chosen
Indicate whether the statement is true or false
TRUE
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Four coins, each with a Head and a Tail, are tossed randomly on to a table. The microstate is defined as the "number of Heads showing". The number of Heads can be, 0, 1, 2, 3, 4. What value for the "number of Heads showing" has the greatest number of microstates?
A. 0 B. 1 C. 2 D. 3 E. 4
Which of the following statements is not a prediction of the general theory of relativity?
A) Time runs slightly slower on the surface of the Sun than on the surface of Earth. B) The universe can be finite without having boundaries or a center. C) The curvature of spacetime can distort the appearance of distant objects. D) Different observers can disagree about the fundamental structure of spacetime. E) A binary star system with two stars orbiting each other rapidly emits gravitational waves.
If we accelerate a radioactive isotope of an element in a particle accelerator to a speed close to that of light, what would its observed rate of decay be compared to its rate of decay at rest?
A) faster B) slower C) infinite D) zero
A magnet will become weaker if it is
A) dropped on a hard surface. B) held in a hot flame. C) either D) neither