in science a push or a pull is a?
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A push or a pull is a Force *vector*.  A push or pull at the same force would be equivalent length vectors, just in opposite directions.\n\nThe fact that they are vectors is important because pushing and pulling imply a direction to the application of the force.
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That's more physics than chemistry! But anyway...\n\nA buoyant force, is that force which tries to push a body out of a medium.  Like put a ball in water, and there's a force which pushes it back up.\n\nThis mass of medium displaced is obtained by multiplying the volume of the medium displaced due to the ball by the density of the medium.  By multiplying the mass with acceleration due to gravity (9.8 ms-2 on Earth), you get the buoyant force.
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The push/pull method is a good method of lifting weights, but it's not particularly better than any other method.  It is only one component of the entire equation.  Equally important is your form, the number of reps and sets you do, how long your workout is, how much rest you take in between sets, the speed of both the concentric component and the eccentric component, and others as well.  The push/pull method just happens to be one of the more popular ways of lifting.\n\n\nOne advantage of this method is that you are exercising muscles that wrok together in one session.  For example, usually the pecs and the triceps are worked in the same sessions.  The triceps work as a synergist during most pec movements (meaning they help the pecs to complete the movement).  So that if you do your chest workout first, then you do have to work your triceps as hard because they have been pre-exhaust by the chest workout.\n\nOn the other hand, by seperating synergistic muscle groups, for example doing triceps and chest on seperate days, then the triceps will get worked twice as many times during the week -- once during the workout specifically aimed at the triceps, and once as a synergist during the chest workout.\n\nFor more information on all off this, see the link below.  It's probably the best written book on weightlifting and exercise on the market today.
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Newton's second law:\nFirstly, this law states that if you do place a force on an object, it will accelerate, i.e., change its velocity, and it will change its velocity in the direction of the force.\nSecondly, this acceleration is directly proportional to the force. For example, if you are pushing on an object, causing it to accelerate, and then you push, say, three times harder, the acceleration will be three times greater.\nThirdly, this acceleration is inversely proportional to the mass of the object. For example, if you are pushing equally on two objects, and one of the objects has five times more mass than the other, it will accelerate at one fifth the acceleration of the other.
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One force acts on one body the second acts on the other body.  It is easy to visualize if you are on a boat and push away from the deck.  You move by pushing on the deck.  You push to hard you can break something on the deck (and you still move if you didn't fall from the boat).
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Force is a vector quantity as it has both magnitude (size) and direction.
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ALL THE ABOVE ANSWERS ARE WRONG! When you push or pull, you are using different muscles. Some muscles are stronger than others. While some have better efficiency because of the placement of tendons. The farther away you're tendon is from the fulcrum of your point of force (usually your elbow/shoulder), the better your mechanical advantage. Like the above said, it requires the same force to push or pull. However, the effort required to exert that force is less.\n\nIf you want it in simple terms, think of this like working out. The amount you can bench press (push) is most likely more than the amount you pull.
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Gravity is the force that pulls things on to Earth.\nWeight is how heavy something is.\nThey are related because gravity pulls down weight on to the Earth. \nhope this helps!
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The push factor involves a force which acts to drive people away from a place and the pull factor is what draws them to a new location.
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N is Newtons, a unit that measures force. For every 1kg of something, if it accelerates at 1 meter per second per second (m/s/s or meters per seconds squared), than there is a force of 1N acting on it.\n\nForce is calculated by multiplying the mass (not weight) with the acceleration. For example, if you are 75kg, than there is a force of 75kg X 9.8 m/s/s (acceleration due to gravity: roughly constant on Earth) = 735N pulling you down. BUT, there is a reaction force, in this case the NORMAL, pushing you back up at the same time and force. Therefore, the force pulling you down, 735N, take away the NORMAL, also 735N, and you will have a NET FORCE of 0N because you are stationary. \n\nSo in order to resist something pulling at 14N (ignoring air resistance, friction, etc), it needs to pull back 14N.
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The force pulling the block down is m*g*sin(ø);  the force of friction is k*m*g*cos(ø),  The net force is the m*g*sin(ø) - k*m*g*cos(ø).  The resulting acceleration is this force divided by m, so\n\na = g*sin(ø) - k*g*cos(ø)\n\na = g[sin(ø) - k*cos(ø)]
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Either to extract by pull or collision.
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Positive work is done when the displacement is in the direction of the force applied. \n\nNegative work is done when the displacment is in the direction opposite to the force applied.\n\nZero work is done when there is no dispalcement, even i some effort is applied-eg. just holding a mass. \n\nst
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do you mean surface?  as in surface area?  \n\nassuming you do, if you push on something with the same force, but the pushing is being done with objects of different surface area, the object with less area will create greater preasure, and the object with more surface area will create less preasure.  it's like if you're wearing high heals versus flip flops and you step on someone's hand with all your weight.  which will hurt more?  it's the same amount of weight each time, but one has a much smaller surface that's pressing on the hand--->way more pain
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Mass. I think.Depending on how strong the gravity is your mass changes.
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Although the words are used in many ways, science has specific definitions\nfor each.\n\nForce is a push or a pull.  Force is between objects, one object pushing or\npulling on another.\n\nEnergy is more difficult to define, because energy is "abstract".  Energy is\na quantity that gives an object the ability to affect other objects.  There\nare different kinds of energy.  Kinetic energy is the energy of motion,\nstored within a moving object.  Potential energy is stored in the force\nbetween objects, perhaps in the stretch of a spring.  Thermal energy can be\nstored in the temperature of an object.  Energy passes from place to place,\nobject to object, but never disappears.  The total energy of the universe\nremains constant.\n\nFuel is a material that has energy stored in its chemical structure.  When\nfuel is processes (burned, for example), the chemical energy is released.\nThis released energy can become heat and cause the temperature of something\nto rise.  The released energy can become the kinetic energy of a car.  It\ncan become the energy carried by sound to your ears.
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Hi, \n\nStretching force is usually called tension. I hope that's what you're asking.\n\nMatt