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How does the density of the earth provide evidence that the interior of the earth is denser that the surface?
The density of the Earth as a whole has been calculated by observing the orbits of the moon and artificial satellites, trajectories of near earth asteroids, etc. We can measure the density of materials from which the surface is composed. The two are not the same. That tells us that the density of the interior is different from the density of surface materials. Since the overall density is greater than the density of the surface materials, the interior must be denser still in order to bring the overall density to what has been observed and calculated.
How much would a 250 lb person weigh on Mars?
A 250 pound person would weigh about 82 pounds. The gravitational force on the surface of Mars is about one third of that of earth.
Would an object have the same mass density on the moon as it does on earth?
No, the mass density of an object would not be the same on the moon as on Earth. The mass of the object would remain the same, but since the gravitational pull on the moon is weaker than that on Earth, the volume of the object would decrease on the moon, resulting in a different mass density calculation compared to Earth.
If a planet has 4 times the density but half the diameter of earth is it's gravity stronger or less?
No, the gravity of this planet will not be greater than that of earth. If the new planet has a mass equal to that of earth, its total gravity will be the same. There is a little ambiguity regarding 4 times earth density and half the earth's diameter if the idea is to keep the mass of this proposed planet the same as the earth. But setting that aside and assuming that the mass of the new planet is the same as earth's, the gravimetric field will be the same. Gravity is proportional to mass, and identical mass yields identical gravity. Now to the good part! The surface gravity of the new planet will be considerably higher than the surface gravity of earth. Both planets have the same mass and the same gravity, but a person standing on the surface of the new planet will be experiencing a whole lot more force pulling on him. All the mass of the new planet is beneath this person, but he's a lot closer to the center of gravityand will weigh a whole lot more.
What is the the weight of a person on venus that is one hundred pounds on earth?
A person weighing 100 pounds on Earth would weigh approximately 91 pounds on Venus. Venus has a similar size and composition to Earth, so the gravitational pull on its surface is about 91% of Earth's gravity.
The density of the Earth's surface?
a
Can the earth have the same density in the center as it does on the surface?
No it can not. We know this because we know the mass of the whole Earth (by looking at its gravity) and if the whole Earth were made of rocks of the same density as we see at the surface, there would not be enough mass to account for the gravity. The Earth must have more dense stuff in its core.
Is earth floating on water?
no because its density is greater than one ( anything less than one, density wise would float ____________________ Actually, only Saturn "would float"; ie, has a density less than 1. Earth has a density of 5.5 or so, and if there were a big enough bathtub, would sink like the rock it is.
What would a 100 pound person weigh on earth surface?
Well it depends on where this person was weighed. If they were weighed on Earth, then they would be 100 pounds.
How does air density change throughout the atmosphere?
Air density is higher near the surface of the Earth. As you climb away from the surface, the pressure decreases.
At which depth below Earth's surface is the density most likely 9.5 grams per cubic centimeter?
It's about 3,500 km below the Earth's surface. (For all Earth Science people)
How much will a 100 pounds person weigh on Uranus?
On Uranus, a person weighing 100 pounds on Earth would weigh approximately 89 pounds. This is due to the lower surface gravity on Uranus compared to Earth. The surface gravity on Uranus is about 0.89 times that of Earth, so a person's weight would be reduced accordingly.
The period of oscillation of a pendulum of constant length at the earths surface is T.its period inside a mine would be?
When you go down below the surface of the Earth, the gravity will initially INCREASE. This is because Earth's density is not uniform - there is more mass concentrated closer to the center, than in the case of a sphere of uniform density. If Earth were a sphere of uniform density, the gravity would get less, once you go below the surface - because some of Earth's material would pull you upward.In any case, if you go further down, eventually the force of gravity will become less. When the gravity increases (as it does initially), the period will become shorter.
How does the density of the earth provide evidence that the interior of the earth is denser that the surface?
The density of the Earth as a whole has been calculated by observing the orbits of the moon and artificial satellites, trajectories of near earth asteroids, etc. We can measure the density of materials from which the surface is composed. The two are not the same. That tells us that the density of the interior is different from the density of surface materials. Since the overall density is greater than the density of the surface materials, the interior must be denser still in order to bring the overall density to what has been observed and calculated.
If a person is standing still on the surface of the earth and the earth is rotating at 1500 km east what is that persons velocity?
The person's velocity would be 0 km/h since they are not moving in relation to the surface of the Earth. Their velocity would only change if they start moving relative to the surface, but standing still means their velocity is 0.
It so happens that an actual increase in weight is found in even the deepest mine shafts what does this tell us about how the Earth's density changes with depth?
The Earth's core is about 7 times the density of the surface rock. That means, a person in a deep mineshaft is getting closer to more mass. Therefore, density is relative to the depth of the earth by the correlation this has on a person's weight.
What is the relationship between the density of the earths materials and depth below the surface of the earth?
As the depth increases, the density increases also.
