Some thing that is done physically like with a persons hands and such
24. A, natural ph scale for it not to be acidic is 7-8
25. A, not sure about this one
26. A, looked it up
27. A, because it has to be shaken up to make the mixture appear and taste more combined.
28. D, i just guessed
29. D, that answer is stupid so it is the answer because it said not a property
30. A, looked it up
Answer:
5.67 x 10^ 1
Explanation:
Move the decimal once to the left
Answer:
It took the rock 2 seconds to get to the water from the bridge.
Explanation:
Since Forrest drops the rock, it means its initial velocity is zero, and because it is freely falling under the influence of gravity, after time it will gain a velocity of
,
solving for we get:
Since in our case the velocity the rock gained was and the acceleration due to gravity is , we have
Thus, the time took the rock to reach the water from the bridge was 2 seconds.
Answer:
1) 16.88 atm
2) 34.47 atm
Explanation:
Data:
Volume=0.700L
Temperature = 300K
Number of moles=0.480 mol
Ideal gas constant=0.082057 L*atm/K·mol
1) The ideal gas law is:
(1)
with P the pressure, T the temperature, n the number of moles, V the volume and R the ideal gas constant , so solvig (1) for P:
2) The vander Walls equation is:
solving for P