Physics, 11.07.2019 13:30 Noneed101

If the gravitational force exists between all objects in the universe, why aren’t people affected by the gravitational force exerted by cars and buildings?

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Answer from: sammarcot

gravitational force is given by formula

$F = \frac{Gm_1m_2}{r^2}$

here we know that

$G = 6.67 * 10^{-11} Nm^2/kg^2$

since the value of G is very small

so we can say that here when we take object of mass of order 100 kg mass then the gravitational force is very small we we do not experience its effect on us.

As the mass of universe is very large and more than the value of order 10^20 kg so the effect of gravitation force due to these planets are very large on us

and we can experience its significant effect

so if mass of the two objects is large in order then only we can experience the effect of gravitational force on us

Answer from: Quest

An atom (ours, not carroll's) consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6 nm. * if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

Answer from: Quest

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

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If the gravitational force exists between all objects in the universe, why aren’t people affected by...