Question

The characteristics of 6.67 x 10-11 is: ? ​

Answer 1

Step-by-step explanation:

Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.

Answer 2

Answer:

The characteristics of 6.67 x 10-11 is gravitational constant

Step-by-step explanation:

• Isaac Newton first postulated that there exists an attraction between all objects which is proportional to the product of their masses and inversely proportional to the distance between them, squared. Because they are proportional, you can get the attraction between any two objects by multiplying the masses, dividing by the squared distances, then multiplying by some constant.
• That constant is called the gravitational constant, it's a constant of the universe (as far as we can tell) and is just a measure of how strong the attraction is. The only way to determine it is to measure it. The original experiments to measure it were simple enough. They just hung a weight on a very sensitive scale, rolled a six ton hunk of lead underneath it and measured how much the measurement changed. The additional force was caused by the attraction between the lead and the weight, so they just measured the distance between them, took the masses, and solved for the constant.
• A scaling factor of 67 million-millionths for the force in Newtons experienced when you place a mass of 1 kg 1 meter away from another 1 kg mass . This means the gravitating force is very very small, and needs really big masses to have easily felt effects, if you are not exactly sure of how massive the Earth or Sun is, it is not much help to know the relation is the product of masses divided by distance squared..
• Cavendish who was an early gentleman-scientist, heard about an idea to measure the SIDEWAYS gravitating force of the two very small masses you could fit in a room even though both of them were pulled DOWNWARDS by the comparatively large force due to Earth mass - that we call “weight”. This needs a strong thin wire suspension that was easy to turn but could hold up the test masses.. Then you need some pretty strong experimental and calculating skills!
• A newton is the weight of an apple, so he was dealing with a force so small it was like measuring the mass of an apple to 11 or 12 decimal places.
• His accuracy for this difficult experiment was within 1% of the current (2014) value.