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Is it true that you need to be in contact with a mass for us to be affected by its gravitational pull?
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How can you measure the mass of weight?
mass = weight ÷ gravity Since the gravitational pull is relatively constant near the surface of the earth, you can weigh the object, then divide the weight by the gravitational acceleration (9.8 m/sec2 near the earth's surface).
How do you find momentum weight and velocity?
First you have to convert weight into mass. This is dependent on the acceleration the mass is experiencing (either gravitational or centrifugal). If it is gravitational and it is at or near the surface of the Earth then mass=weight/9.81m/s2 If it is centrifugal then a=v2/r and mass=weight*r/v2 Then to find momentum just multiply mass by velocity.
Using the known distance earth is from the sun calculate What is the speed that earth is moving through space in relation to the sun?
To calculate this speed, you need some more numbers, not just the distance from Earth to Sun. You need to know:* The gravitational constant * The distance from Earth to Sun * The mass of the Sun You DON'T need the mass of the Earth. Assume any mass; you can just call the mass of the Earth "m". Then calculate an expression for the gravitational attraction between Earth and Sun. Divide by the mass of the Earth, and you get a centripetal acceleration. Assuming a circular orbit for simplicity, the centripetal acceleration must be just this force. Use the formula for the centripetal acceleration along a circle (a = v squared / radius). (Don't forget to convert the distance from Earth to Sun, to meters!) Solve for "v".
How many pounds is 140 kilograms equal to?
It is equal to 308.64 pounds approximately. Kilogram is the metric unit and pound is the imperial unit for mass. 1 Kilogram is 2.204 pounds. So we multiply kg by 2.204 to get the equivalent pounds.
A ball of weight 10N is dropped freely from rest at a height of 4 m.what is its total mechanical energy after it has traveled 1 meter?
If you are ignoring energy lost due to friction, the total mechanical energy will be the same after it has traveled 1 meter as when it was dropped. This means the easiest way to solve the problem is to find the mechanical energy at the beginning, when the ball is at rest and all of its mechanical energy is gravitational potential energy. Gravitational potential energy equals mass*g*height. Since mass*g equals weight, we can just multiply 10N by 4m, making the total mechanical energy 40J.After it has traveled 1 meter, some of the gravitational potential energy has been converted into kinetic energy. The gravitational potential energy is just the weight of 10N multiplied by the height of 3m, or 30J. To find the kinetic energy, we need to find velocity2, which equals 2 times acceleration (g) times displacement (1m) when the initial velocity is 0. We also need the mass, which is weight (10N) divided by g. Kinetic energy equals (1/2)*mass*velocity2, so we get (1/2)*10N÷g*2*g*1m, which equals 10J, so the total mechanical energy is still 40J.
To find the pressure that the solid exerts on something what do you need to know about the solid?
You need to know the mass of the solid.
What is the Gravitational strength of the sun?
You need to use the radius and the mass :P
What must you know in order to determane the gravitational force between 2 objects?
You need to know . . . -- the mass of each object -- the distance between their centers of mass -- the value of the universal gravitational constant
What would you measure to determine egg's gravitational potential energy?
Gravitational energy is U = mgh. Therefore, you need the egg's mass and the height at which it will be dropped. g=9.8
Does gravitational force is like megnetic force due to megma rotates inside earth?
No. The gravitational force is a different force from magnetism, and depends only on the mass and the distance. Specifically, a body does not need to rotate to have gravitational force.
What do you need to know in order to get an objects gravitational potential energy?
You need to have a weight and the mass of an object then you use the formula f=w=mg
If a student drops a book having a gravitational potential energy of 5 joules from a height of 1.1 meters what is the mass of the book?
The book has a mass of 0.46kg
What is the gravitational potential of energy with a mass of 12kg and is 3mg?
To calculate the gravitational PE, you also need the height. PE = mgh (mass x gravity x height); convert the mass to kg. (3 mg = 0.000 003 kg); use 9.82 for gravity; and convert the height to meters. The result will be in Joule.
What did you need to do create the black hole?
You need to compress a large mass into a very small space. As far as we know, this can only be achieved by the gravitational collaps of a star.
What does gravitational potential energy need in order to be present?
Look at the formula for gravitational potential energy: PE = mgh. It is the product of mass, gravity, and difference in height. Therefore, those three factors are required.
If you produce a scatter graph of planet mass and gravitational field strength Mercury Saturn and Jupiter appear on one line of best fit and the rest on another Why?
The gravitational field strength at a standard distance is directly proportional to a planet's mass so the need for a scatter diagram is not immediately obvious.
Is it possible for a person to be so fat that said person has a gravitational pull?
Everything that has mass exerts a gravitational pull on everything else with mass... but gravity is such a weak force that objects need to be huge in order to have any noticable effect. No person will ever be big enough that they can noticably attract objects around them.
