Answer:
You may be saving someone from a rock slide, where the rocks will fall at any time, before they fall they have potential energy.
Explanation:
Answer:
(C) 2P
Explanation:
Ideal gas law states:
PV = nRT
n (the number of moles) and R (ideal gas constant) are constant, so we can say:
(PV / T) before = (PV / T) after
Chamber X starts at pressure P, volume V, and temperature T. At equilibrium, the pressure is Px, the volume is Vx, and temperature 3T.
PV / T = Px Vx / 3T
Chamber Y starts at pressure P, volume V, and temperature T. At equilibrium, the pressure is Py, the volume is Vy, and temperature T.
PV / T = Py Vy / T
Substituting and simplifying:
Px Vx / 3T = Py Vy / T
Px Vx / 3 = Py Vy
Since the chambers are at equilibrium, Px = Py:
Vx / 3 = Vy
Vx = 3 Vy
The total volume is the same as before, so:
Vx + Vy = 2V
Substituting:
(3 Vy) + Vy = 2V
4 Vy = 2V
Vy = V / 2
Now if we substitute into our equation for chamber Y:
PV / T = Py (V/2) / T
PV = Py (V/2)
Py = 2P
The pressure in chamber Y (and chamber X) doubles at equilibrium.
Answer:
When studying atoms, scientists can ignore the <em><u>intermolecular</u></em><em><u> </u></em><em><u>electrostat</u></em><em><u>ic</u></em><em><u> </u></em>forces between charged particles that make up the atoms because it is many millions of times smaller than other forces in the atom. Gravitational Constant Normal Fricitional
Answer:
mass
Explanation:
astronomers use Newtons gravitational law as a link between gravity and orbits to measure the masses of stars and planets.
Newtons gravitational law states that the gravitational force of attraction between two planets is proportional to their masses and inversely proportional to the square of the distance between them.