what expression is the same as mass
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- So, if two objects have the same energy $E_k$, they only have the same momentum if they also have the same mass. Since the bull has a much larger mass than the bullet, it must therefore have a much larger momentum than the bullet to arrive at the same kinetic energy. Force is change of momentum with time, $F = \dot p$.
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- In science, mass is the amount of matter an object has. Newton's second law says that mass is the property of matter that determines the force required to impart a given acceleration to an object. Continue Reading.
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What is the definition of mass? In relative physics, mass has two components: the classical mass, described above, also known as rest mass (or invariant mass), and relativistic mass. A body's rest mass remains constant, and its relativistic mass is zero when the the body is not moving (i.e., at rest).
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Subatomic particle By mass. In special relativity, the energy of a particle at rest equals its mass times the speed of light squared, E = mc 2. That is, mass can be expressed in terms of energy and vice versa. If a particle has a frame of reference in which it lies at rest, then it has a positive rest mass and is referred to as massive.
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CHMY 161 Chapeter 4 the sum of the mass numbers and the sum of the atomic numbers of the particles and atoms are the same on both sides of the equation. When a positron is emitted from the nucleus of an atom, the nuclear mass. remains the same. When an alpha particle is emitted from the nucleus of an atom, the nuclear mass.
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- (Answer #1). Given Newton's second law of motion, acceleration and mass are proportional to force. Thus: Fnet=ma. The net force is mass multiplied by acceleration. If mass is constant, acceleration and net force will increase or decrease proportionally to each other; multiply or divide each by a similar factor.mwmovr40 | College Teacher | (Level 1) Associate Educator. Posted on.o, (Vf-Vi)/t = Fnet/m. by defining the rate of change in the velocity as acceleration we get the current form of the second law: a = Fnet/m. From this we can see that if m is constant then a is directly proportional to Fnet.
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What is the measure of inertia? But mass as related to 'inertia' of a body can be defined also by the formula: F = ma By this formula, the more is mass, the less is the acceleration of a body at given force.
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What is the difference between mass, weight, and gravity? mass is how much of something you have. Weight is the force gravity exerts on mass. Force = mass*acceleration. Gravity is the attraction between two or more masses. so any object always has mass. if the object is near something like a planet gravity effects it. which gives a fore on it, called weight.ravity is the attraction between two or more masses. so any object always has mass. if the object is near something like a planet gravity effects it. which gives a fore on it, called weight.
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Mass The mass of an object determines its acceleration in the presence of an applied force. This phenomenon is called inertia. According to Newton's second law of motion, if a body of fixed mass m is subjected to a single force F, its acceleration a is given by F / m.
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- Mass is expressed in grams in the SI system and slugs in the English system. (these are the base units obviously multiples of these units exist. ex: kg). Volume is express … ed as a cubic of any unit of length ex: M^3.
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What Is Mass? Mass is the quantity of inertia (resistance to acceleration) possessed by an object or the proportion between force and acceleration referred to in Newton's Second Law of Motion (force equals mass times acceleration). In other words, the more mass an object has, the more force it takes to get it moving.
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What is the definition of mass? Inertial mass (which leads to momentum) is a measurement of a body's resistance to a change in velocity when an external force is applied to that body. Gravitational mass (which leads to weight) is the magnitude of a body's interaction with a known gravitational field.
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What is the 'Law of Conservation of Mass or Matter'? Answer: The law of conservation of mass or of matter, also known as the Lomonosov-Lavoisier law, states that the mass of substances in a closed system will remain constant, no… matter what processes are acting inside the system.
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Weight or Mass? People often use weight to mean mass , and vice versa. Because gravity is pretty much the same everywhere on Earth, we don't notice a difference. But remember .. they do not mean the same thing, and they can have different measurements. Here are some conditions where the Weight might change: 1  in space (can be weightless!). 2  on the moon (a 100 kg mass would weigh 16.6 kg).
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State the law of conservation of mass? · just now. Report Abuse. The law of conservation of mass states that mass can neither be created nor destroyed. In a balanced chemical equation reaction, the reactants mass must be equal to the mass of thier products. Everything must be equal because if there is something more or less on opposite sides then something was created or destroyed, which isn't possible. ANB · 7 years ago. Thumbs up.
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- Use the formula w = m x g to convert weight into mass. Weight is defined as the force of gravity on an object. Scientists put that sentence into an equation by writing w = m x g, or. w = mg. Since weight is a force, scientists also write the equation as F = mg.
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The Structure of Scientific Revolutions He finds that there are at least two different definitions: 1  Relativistic mass: the mass of a particle is equal to the total energy of the particle divided by the speed of light squared.  2 Real mass: the mass of a particle is equal to the non-kinetic energy of a particle divided by the speed of light squared.
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- Mass is expressed in grams in the SI system and slugs in the  English system. (these are the base units obviously multiples of  these units exist. ex: kg). Volume is express…ed as a cubic of any  unit of length ex: M^3.
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The Legacy of E = mc 2 It's the world's most famous equation, but what does it really mean? Energy equals mass times the speed of light squared.. On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.o why would you have to multiply the mass of that walnut by the speed of light to determine how much energy is bound up inside it? The reason is that whenever you convert part of a walnut or any other piece of matter to pure energy, the resulting energy is by definition moving at the speed of light.
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- Since they are identical in all respects except mass, each experiences the same air drag frictional force, let's call that Fdrag. Newton's second law says that the acceleration adrag is equal to the force Fdrag divided by the mass m and so adrag=Fdrag/1 for the 1 kg mass and adrag=Fdrag/2 for the 2 kg mass.
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mass It is a measure of a body's resistance to changes in velocity (inertial mass) and also of the force experienced in a gravitational field (gravitational mass): according to the theory of relativity, inertial and gravitational masses are equal See also inertial mass, gravitational mass. 8.
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What is the definition of mass? In quantum physics, mass can be described as the amount of potential energy contained within a body, and is a measurement of how much energy would be liberated should that mass be converted into energy through mass annihilation using the famous E=mc2 equation. It could also mean church.
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Mass versus weight In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities.
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Same gravitational acceleration of unequal masses Same gravitational acceleration of unequal masses. I understand that objects of different masses will accelerate equally in a vacuum. This is because the force of acceleration from gravity is the same regardless of mass. I also know I can manipulate the F=ma equation to a=f/m, which also shows the above to the true.
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Sir Isaac's Most Excellent Idea We have seen that in the Universal Law of Gravitation the crucial quantity is mass. In popular language mass and weight are often used to mean the same thing; in reality they are related but quite different things. What we commonly call weight is really just the gravitational force exerted on an object of a
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Questions and Answers What do we use to measure mass? The difference between mass and weight causes a lot of confusion amongst a lot of people. Put simply, weight is a measure of gravity's effect on something. Mass is the amount of matter in an object. Move to a different planet and an object's weight will change, but its mass will be the same. There are a couple of ways to measure mass. The most common method is to use a balance. Hey, wait a minute! (you should be saying) People weigh stuff all the time with a balance! Think about it. If you go to a different planet, the balance weights change by the same factor as the object you are measuring.