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What else can I help you with?
Why is the acceleratoin due to gravity the same for all objects?
-- The more mass an object has, the more gravitational force there is betweenit and the Earth.-- But the more mass an object has, the more force is required to accelerate it.-- The relationship between how much gravitational force there is and how much forceis required trades off just right, so that every mass has the same acceleration.
Does an objects acceleration increase while in free fall?
No, it will decrease in magnitude until the wind drag force is equal to the object's weight. Therefore it will reach a maximum velocity (speed) that it will maintain until it hits something.When in free fall, ALL objects have the SAMEacceleration of ~9.8 m/s2. This means that for every second that passes, the velocity of an object in free fall will increase 9.8 m/s more. This is when neglecting drag force from air which at the beginning ofthe fall is small.As the object increases its velocity, drag force becomes important and will increasewith the objects velocity until is equal to the object's weight. During this time theacceleration of the object is reduced in magnitude down to zero (when drag forceis equal to the object's weight) and the velocity has reached a maximum that staysnow constant.
In hydraulic system when the forceis increased by the large piston how does the amount of work remain the same?
In a hydraulic system, the force exerted by the larger piston is spread out over a larger surface area, resulting in a smaller pressure increase compared to the smaller piston. However, the increased force at the larger piston compensates for the decreased pressure, ensuring that the work done on the fluid remains the same in accordance with the law of conservation of energy.
Explain why you feel Earth's gravitational force but not the gravitational force exerted by a book?
Because there's such a difference between the strengths of the two forces.The gravitational force between two masses is proportional to the product of the masses.So if one mass is constant, then the force is proportional to the other mass. Also, the forceis inversely proportional to the square of the distance between the two masses.Let's say the book has a mass of 1 kg, and is one meter from you.The earth's mass is 5.97 x 1024 kg, and it's centered 6,378,000 meters from you (earth's radius).So the ratio of the (gravitational force toward the earth) to the (gravitational force toward the book) is(5.97 x 1024)/ (6.378 x 106)2 = 1.468 x 1011The gravitational force between you and the earth is about 147 billion times as strong asthe force between you and the book !If you weigh a ton (2,000 lbs), then the force between you and the book is like 0.000000218 ounce.
What are the factors that affect the strength of gravity?
The factors that affect the strength of gravity include the mass of the objects involved (more massive objects exert stronger gravitational forces), the distance between the objects (gravitational force weakens with increasing distance), and the gravitational constant, which is a universal constant that determines the strength of gravity.
What forceis exerted by water in order for the ship to float?
An upthrust force which is proportional to the weight of the ship being displaced on the water.this can simply be regarded as principle of floatation
Why does Some foam cubes get smaller in a syringe and some stay the same size?
when forceis applied to the syringe plunger air particles are still evemly distributed in and around the cube. but the partiles are closer together. the cubes are not the same size
Is second equation of motion valid for non uniform acceleration?
Yes. It just has to be remembered that the equation is describing a balance betweena force and the increment of momentum of the system per time unit on which the force is being applied "at a given instant t".For a given system with constant mass m, we can write Newton's 2nd law of motionas:F(t) = m∙a(t)where force F(t) and acceleration a(t) are a function of time (notice that if the forceis constant during time applied, acceleration results constant or uniform).If you know how the force is varying in time (function F(t)), then you know thefunction of acceleration in time: a(t) = F(t)/m
Why is the acceleratoin due to gravity the same for all objects?
-- The more mass an object has, the more gravitational force there is betweenit and the Earth.-- But the more mass an object has, the more force is required to accelerate it.-- The relationship between how much gravitational force there is and how much forceis required trades off just right, so that every mass has the same acceleration.
Does an objects acceleration increase while in free fall?
No, it will decrease in magnitude until the wind drag force is equal to the object's weight. Therefore it will reach a maximum velocity (speed) that it will maintain until it hits something.When in free fall, ALL objects have the SAMEacceleration of ~9.8 m/s2. This means that for every second that passes, the velocity of an object in free fall will increase 9.8 m/s more. This is when neglecting drag force from air which at the beginning ofthe fall is small.As the object increases its velocity, drag force becomes important and will increasewith the objects velocity until is equal to the object's weight. During this time theacceleration of the object is reduced in magnitude down to zero (when drag forceis equal to the object's weight) and the velocity has reached a maximum that staysnow constant.
In hydraulic system when the forceis increased by the large piston how does the amount of work remain the same?
In a hydraulic system, the force exerted by the larger piston is spread out over a larger surface area, resulting in a smaller pressure increase compared to the smaller piston. However, the increased force at the larger piston compensates for the decreased pressure, ensuring that the work done on the fluid remains the same in accordance with the law of conservation of energy.
What are the magnitude and direction of the gravitational force that acts on a man who weighs 700N at the surface of the earth?
Oh, dude, the magnitude of the gravitational force acting on that 700N man is 700N (shocking, right?). And the direction? Well, it's pulling him straight down towards the center of the Earth like a magnet to a fridge. So, yeah, gravity's got him in its grip, just like that last piece of pizza you can't resist.
Explain why you feel Earth's gravitational force but not the gravitational force exerted by a book?
Because there's such a difference between the strengths of the two forces.The gravitational force between two masses is proportional to the product of the masses.So if one mass is constant, then the force is proportional to the other mass. Also, the forceis inversely proportional to the square of the distance between the two masses.Let's say the book has a mass of 1 kg, and is one meter from you.The earth's mass is 5.97 x 1024 kg, and it's centered 6,378,000 meters from you (earth's radius).So the ratio of the (gravitational force toward the earth) to the (gravitational force toward the book) is(5.97 x 1024)/ (6.378 x 106)2 = 1.468 x 1011The gravitational force between you and the earth is about 147 billion times as strong asthe force between you and the book !If you weigh a ton (2,000 lbs), then the force between you and the book is like 0.000000218 ounce.
If a man pushes on a crate with 10 newtons of force and Fred the goat pushes with him with another 10 Newtons of force what is the net force of Fred and the man on the crate?
Fnet = F1+F2Force of man f1 = 10nForce of goat f2 = 10nSo,Fnet = 10+10Fnet=20n================================-- If Fred and the man are both pushing in the same direction, thenthe net force is 20 newtons.-- If they're not both pushing in the same direction, then the net forceis less than 20 N, but we don't have enough information to be able tonail down either the net force or its direction.
What are the factors that affect the strength of gravity?
The factors that affect the strength of gravity include the mass of the objects involved (more massive objects exert stronger gravitational forces), the distance between the objects (gravitational force weakens with increasing distance), and the gravitational constant, which is a universal constant that determines the strength of gravity.
What is the definition of non contact forces?
A non-contact force is a force applied to an object by another body that is not in direct contact with it. The most familiar example of a non-contact force is gravity. In contrast a contact forceis a force applied to a body by another body that is in contact with it. However it is to be noted that the origin of all contact forces (such as, for example, friction) can be traced to non-contact forces.The four known fundamental interactions are all non-contact forces:Gravity, the force of attraction that exists among all bodies that have mass. The force exerted on each body by the other through weight is proportional to the mass of the first body times the mass of the second body divided by the square of the distance between them.Electromagnetismis the force that causes the interaction between electrically charged particles; the areas in which this happens are called electromagnetic fields. Examples of this force include: electricity, magnetism, radio waves, microwaves, infrared, visible light, X-rays and gamma rays. Electromagnetism mediates all chemical, biological, electrical and electronic processesStrong nuclear force: Unlike Gravity and electromagnetism, the strong nuclear force is a short distance force that takes place between fundamental particles within a nucleus. It is chargeindependent and acts equally between a proton and a proton, a neutron and a neutron, and a proton and a neutron. The strong nuclear force is the strongest force in nature; however, its range is small (acting only over distances of the order of 10−15 m). The strong nuclear force mediates both nuclear fission and fusionreactions.Weak nuclear force: The weak nuclear force mediates the β decay of a proton, in which the protondecays into a neutronand in the process emits a β particle and an uncharged particle called a neutrino. As a result of mediating the β decayprocess, the Weak nuclear force plays a key role in Supernova. Both the strong and weak forces form an important part of quantum mechanics.
What are three noncontacts forces?
What exactly is a "non-contact force"?- this must be the question.A non-contact force is a force applied to an object by another body that is not in direct contact with it. The most familiar example of a non-contact force is gravity. In contrast a contact forceis a force applied to a body by another body that is in contact with it. However it is to be noted that the origin of all contact forces (such as, for example, friction) can be traced to non-contact forces.All four known fundamental interactions are non-contact forces:Gravity, the force of attraction that exists among all bodies that have mass. The force exerted on each body by the other through weight is proportional to the mass of the first body times the mass of the second body divided by the square of the distance between them.Electromagnetismis the force that causes the interaction between electrically charged particles; the areas in which this happens are called electromagnetic fields. Examples of this force include: electricity, magnetism, radio waves, microwaves, infrared, visible light, X-rays and gamma rays. Electromagnetism mediates all chemical, biological, electrical and electronic processesStrong nuclear force: Unlike Gravity and electromagnetism, the strong nuclear force is a short distance force that takes place between fundamental particles within a nucleus. It is chargeindependent and acts equally between a proton and a proton, a neutron and a neutron, and a proton and a neutron. The strong nuclear force is the strongest force in nature; however, its range is small (acting only over distances of the order of 10−15 m). The strong nuclear force mediates both nuclear fission and fusionreactions.Weak nuclear force: The weak nuclear force mediates the β decay of a proton, in which the protondecays into a neutronand in the process emits a β particle and an uncharged particle called a neutrino. As a result of mediating the β decayprocess, the Weak nuclear force plays a key role in Supernova. Both the strong and weak forces form an important part of quantum mechanics. (Wikipedia)
