Can you explain that gravity pulls us to the Earth & can you calculate weight from masses on both on Earth and other planets?

Answers

Answer 1

Answer: I don't actually understand what your question is, but I'll dance around the subject
for a while, and hope that you get something out of it.

-- The effect of gravity is: There's a pair of forces, in both directions, between
every two masses.

-- The strength of the force depends on the product of the masses, so it doesn't matter whether there's a big one and a small one, or whether they're nearly equal.
It's the product that counts. Bigger product ==> stronger force, in direct proportion.

-- The strength of the forces also depends on the distance between the objects' centers. More distance => weaker force. Actually, (more distance)² ==> weaker force.

-- The forces are equal in both directions. Your weight on Earth is exactly equal to
the Earth's weight on you. You can prove that. Turn your bathroom scale face down
and stand on it. Now it's measuring the force that attracts the Earth toward you.
If you put a little mirror down under the numbers, you'll see that it's the same as
the force that attracts you toward the Earth when the scale is right-side-up.

-- When you (or a ball) are up on the roof and step off, the force of gravity that pulls
you (or the ball) toward the Earth causes you (or the ball) to accelerate (fall) toward the Earth.
Also, the force that attracts the Earth toward you (or the ball) causes the Earth to accelerate (fall) toward you (or the ball).
The forces are equal. But since the Earth has more mass than you have, you accelerate toward the Earth faster than the Earth accelerates toward you.

-- This works exactly the same for every pair of masses in the universe. Gravity
is everywhere. You can't turn it off, and you can't shield anything from it.

-- Sometimes you'll hear about some mysterious way to "defy gravity". It's not possible to 'defy' gravity, but since we know that it's there, we can work with it.
If we want to move something in the opposite direction from where gravity is pulling it, all we need to do is provide a force in that direction that's stronger than the force of gravity.
I know that sounds complicated, so here are a few examples of how we do it:
-- use arm-muscle force to pick a book UP off the table
-- use leg-muscle force to move your whole body UP the stairs
-- use buoyant force to LIFT a helium balloon or a hot-air balloon
-- use the force of air resistance to LIFT an airplane.

-- The weight of 1 kilogram of mass on or near the Earth is 9.8 newtons. (That's
about 2.205 pounds). The same kilogram of mass has different weights on other planets. Wherever it is, we only know one of the masses ... the kilogram. In order
to figure out what it weighs there, we need to know the mass of the planet, and
the distance between the kilogram and the center of the planet.

I hope I told you something that you were actually looking for.

Related Questions

What is Fossil-rich limestone?
7. What mass of water will change its temperature by 3.0°C when 525 J ofheat is added to it?
HELP FAST CORRECT ANSWERS ONLY 20PTSSelect the correct locations on the image.Where would you expect a hot main-sequence star with high luminosity to be located on the following HR diagram?
Is it possible to estimate densities of liquids in a container by holding them in your hand? Explain.
Do you hear sound as soon as it's made? explain?

A child holds up a silver spoon and is surprised to see her reflection there. Which interaction between light and matter explains this?

A.
When light hits something relatively flat, smooth, and shiny, it is transmitted by the surface, allowing nearby objects to be seen on the surface.

B.
When light hits something relatively flat, smooth, and shiny, it is refracted by the surface, allowing nearby objects to be seen on the surface.

C.
When light hits something relatively flat, smooth, and shiny, it bounces off the surface, allowing reflected objects to be seen on the surface.

D.
When light hits something relatively flat, smooth, and shiny, it is absorbed by the surface, allowing refracted objects to be seen on the surface.

Answers

The answer to your question is B. When light hits something relatively flat, smooth and shiny, it is reflected by the surface, allowing nearby objects to be seen on the surface.

the answer is B.When light hits something relatively flat, smooth, and shiny, it is refracted by the surface, allowing nearby objects to be seen on the surface.

Who developed the heliocentric model

Answers

the astronomer who built the heliocen model was nicolaus copernicus

Nicolaus copernicus on his death bed proposed that the sun was in the middle of the solar system

Does gravity make you weigh more

Answers

yeah because the gravity pull you down. if the gravity did't exist we were weigh less.

How do u know if a wave is a mechanical wave?

Answers

Basically, "mechanical wave" means that the wave involves actual movement

the wave is created by like a boat or something like that

Americium-241 is a radioactive substance used in smoke detectors. The half life of americium is 432 years. If a smoke detector initially contains 1 gram of Americium 241, how much will remain in 432 years?

Answers

Answer:

0.5 g

Explanation:

The half-life of a radioactive isotope is the time it takes for a certain amount of that isotope to halve.

In this case, we have an isotope of Americium-241, which has a half-life of

$\tau = 432 y$

This means that after 1 half-life (432 years), there will be an amount of americium equal to half its initial amount.

In this problem, the initial amount of americium is

$m_0 = 1 g$

Therefore, after 432 years (1 half-life), the amount of americium left will be half:

$m(432y) = (m_0)/(2)=0.5 g$

How is thermal energy transferred during conduction? Check all that apply.0
Thermal energy is transferred between particles that are not touching each other
Thermal energy is transferred between particles that are in direct contact with each other.
Thermal energy is transferred between objects of different temperatures.
Thermal energy is transferred between objects of the same temperature
Thermal energy is transferred from slow-moving particles to fast-moving particles
Thermal energy is transferred from fast-moving particles to slow-moving particles

Answers

Answer:

2, 3, and 6

Explanation:

got it right

Other Questions

To calculate power, divide the amount of energy transferred by _____________

Question 3 A compound is the chemical bonding of _____. a two or more solutions b two or more mixtures c two or more elements Question 4 Which item is a mixture? a copper b table salt c carbon d air Question 5 A sample of matter that contains only one kind of atom would be classified as _____. a a homogeneous mixture b an element c a heterogeneous mixture d a compound Question 6 Which action will make a solid solute dissolve more slowly in a liquid solvent? a decreasing the solvent’s temperature b stirring the solution c crushing the solute into small pieces Question 7 A chemical change is required to separate the components of a _____. a heterogeneous mixture b compound c homogeneous mixture Question 8 Solutions and heterogeneous mixtures have _____. a parts that are chemically bonded to one another b parts that are physically mixed c individual parts that can be seen without a microscope Question 9 Matter that is always composed of the same combination of atoms is a _____. a solution b substance c mixture Question 10 Adding more solute to a solution changes the _____. a polarity of the solute molecules b solubility of the solute c concentration of the solution Question 11 Saturated is a term that is used to describe _____. a polarity b pH. c solubility d concentration Question 12 Evaporation, a physical change, could be used to separate the components of a(n) _____. a substance b mixture c element d compound Question 13 Which phrase describes the parts of a solution but NOT the parts of a heterogeneous mixture? a evenly mixed b easily visible with the unaided eye c always a single type of atom d chemically bonded Question 14 Which item could be separated into its component parts only by using a chemical change? a granite b air c table salt d salt water

suppose a single light bulb burns out. How do you think this will affect light that are strung along a single wire

6) Suppose a student throws a pencil at the wall, and upon hitting the wall, the pencilbreaks in half. What happens to the original momentum of the pencil?