1) As water flows from a low elevation to a higher elevation through a pipe that
ID: 2298483 • Letter: 1
Question
1) As water flows from a low elevation to a higher elevation through a pipe that changes in diameter,
-Need more information to determine how the water pressure changes.
At what point in the motion is the velocity zero and the acceleration zero simultaneously?
None of the above.
To double the period, replace the object with one of mass:
None of the above.
4) At what displacement of a SHO is the energy half kinetic and half potential?
- the water pressure will decrease. - the water pressure will increase. - the water pressure will stay the same.-Need more information to determine how the water pressure changes.
2) A mass on a spring in SHM has amplitude A and period T .
(Figure 1)
At what point in the motion is the velocity zero and the acceleration zero simultaneously?
x>0 but x<A . x=0. x<0 . x=ANone of the above.
3) An object of mass M oscillates on the end of a spring.
To double the period, replace the object with one of mass:
M/2 . M/4 . 4M . 2M .None of the above.
4) At what displacement of a SHO is the energy half kinetic and half potential?
Express your answer in terms of amplitude A .
Explanation / Answer
1)
-Need more information to determine how the water pressure changes.
as for applying bernoulli eqution , we need more information like velocity of flow etc.
2)
None of the above.
there is no point in SHM where velocity and acceleration are both zero because if both are zero simlutaneouly , the block will stop moving
3)
4M
as T = 2*pi sqrt (M/K)
4) KE = PE >> .5 m v^2 = .5 k x^2 = .5 *.5 k A^2
>> x= A/sqrt(2)
.
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