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What is a constant across the entire elevtromagnetic spectrum?
The Planck constant is a physical constant: the quantum of action in quantum mechanics, with an angular momentum. The Planck constant is the proportionality constant between the energy of a unit of electromagnetic radiation. You may also be looking for the answer of "the speed of light."
Why does the earth spin in space?
The Earth spins in space due to an action called angular momentum. The Sun is considered the fixed point of the Earth, which is why the Earth rotates around the Sun.
What is the momentum law?
The Momentum Law is Newton's 3 rd Law Action-Reaction,The sum of the forces is zero. 0 = F1 + F2 = d(p1 +p2)/dt gives teh Momentum Law: p1 + p2 = constant.
How do you know the momentum is conserved?
Momentum is conserved when the total momentum of a system remains constant before and after a collision or interaction. This conservation of momentum is based on the principle of Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. This means that in a closed system where no external forces are present, momentum will be conserved.
What physics principle explains why a water sprinkler spins?
The principle of conservation of angular momentum explains why a water sprinkler spins. As the water exits the sprinkler nozzle in one direction, an equal and opposite reaction force is applied in the opposite direction, causing the sprinkler to rotate. This rotation continues due to the conservation of angular momentum in the system.
Conservation of linear momentum exp?
Linear momentum is mass times velocity. For a single point object, momentum is conserved, because the object will continue to move at a constant velocity. Nor will its mass change either. For a group of objects, too: When momentum is transferred, for example during a collision, any momentum lost by one object is gained by another. The total momentum remains constant.
What does a planets rotation cause?
This is a very good question that may not have an ultimate answer, but there is an explanation. The reason a planet rotates is due to its origins from the nebula from which it formed. This nebula had to be rotating. You probably have heard about the gyroscope and how it works- conservation of angular momentum. Angular momentum is determined by the rate of rotation and the mass of the object and its distribution as a function of distance from the axis of rotation. This is the principle behind an ice-skater spinning up when the arms are brought close to the body, or slowing down when the arms are extended. Except for dissipation and action of other torques, angular momentum is held constant. Thus the rotation of the gases and dust from which a planet formed causes the planet to keep on rotating, to conserve the initial angular momentum.The planet's rotation is of course changed by events both inside and outside of the planet. For example, it has been recently shown that the use of dams has changed the distribution of stored water on earth at different latitudes, sufficiently to change the length of the day! The difference is small, but has been detectable.But, why is the angular momentum conserved? And why was the nebula rotating if the universe began in a big bang?
What is the significance of the h-bar value in quantum mechanics?
The h-bar value, also known as the reduced Planck constant, is significant in quantum mechanics because it represents the fundamental unit of action in the quantum world. It plays a crucial role in determining the quantization of physical quantities such as energy and angular momentum, and is essential for understanding the behavior of particles at the quantum level.
The conservation of momentum is most closely related to?
The conservation of momentum is most closely related to Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. This principle ensures that the total momentum of an isolated system remains constant unless acted upon by an external force.
When an action and reaction occur momentum is usually lost?
No. Total momentum before and after the collision is the same. Some kinetic energy can be lost - but not momentum.
If six gyroscopes connected together at a central point in six different planes are spun at a high rpm in opposite directions would it remain suspended in mid-air?
No. Gyroscopic action does not prevent the action of gravity. It resists the actions of movement through momentum.
All mass movements on earth are caused by what action force?
momentum
