You would do the √molar mass B (neon) over √molar mass A (hydrogen)
√20/√2 = 3.16
Answer:
(a) General form of ellipse is.
where a and b are major and minor axes both in x and y.
(b) at the origin, it is
Explanation:
Origin is at (0,0) we put in these coordinate for .
Answer:
The object would weight 63 N on the Earth surface
Explanation:
We can use the general expression for the gravitational force between two objects to solve this problem, considering that in both cases, the mass of the Earth is the same. Notice as well that we know the gravitational force (weight) of the object at 3200 km from the Earth surface, which is (3200 + 6400 = 9600 km) from the center of the Earth:
Now, if the body is on the surface of the Earth, its weight (w) would be:
Now we can divide term by term the two equations above, to cancel out common factors and end up with a simple proportion:
That all depends where the ball happens to be. Wherever it is,
it weighs (7 kg) times (the acceleration of gravity in that place).
-- On Mars, it weighs (7 kg) x (3.711 m/s²) = 25.977 newtons = 5.84 pounds
-- On the moon, it weighs (7 kg) x (1.623 m/s²) = 11.361 newtons = 2.55 pounds
-- On Earth, it weighs (7 kg) x (9.807 m/s²) = 68.649 newtons = 15.43 pounds
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etc.
Answer:
The force for each half is:
Explanation:
The force of the spring is
now the massless is cut in half so now
so in terms in K the force is