: Absolute uncertainties are added in which following operations
i. Addition ii. Subtraction
...
Physics, 06.09.2020 03:01, supervirzaofficial
: Absolute uncertainties are added in which following operations
i. Addition ii. Subtraction
iii. Multiplication iv. Division
A. i only
B. i & ii
C. i, ii & iii
D. All of them
Answers: 1
Physics, 23.06.2019 14:30, suewignall
Atruck going 15 kmôź°€h has a head-on collision with a small car going 30 kmôź°€h. which statement best describes the situation? (a) the truck has the greater change of momentum because it has the greater mass. (b) the car has the greater change of momentum because it has the greater speed. (c) neither the car nor the truck changes its momentum in the collision because momentum is conserved. (d) they both have the same change in magnitude of momentum because momentum is conserved. (e) none of the above is necessarily true. 2. a small boat coasts at constant speed under a bridge. a heavy sack of sand is dropped from the bridge onto the boat. the speed of the boat (a) increases. (b) decreases. (c) does not change. (d) without knowing the mass of the boat and the sand, we can’t tell.
Answers: 1
Physics, 23.06.2019 22:20, jnaifuson
Imagine an alternate universe where the value of the planck constant is . in that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? which objects would act like everyday objects, and be adequately described by classical mechanics?
Answers: 2
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