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Drift velocity refers to a particle's average velocity being influenced by its electric field. Momentum relaxation time is the time required for the inertial momentum of a particle to become negligible.
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Is the impulse-momentum relationship related to newton's second law?
Yes. From Newton's Second Law, you know that to accelerate an object, a net force must be applied to it. The impulse-momentum relationship is basically the same thing, but worded differently. It says that if you wish to change the momentum of an object, you need to exert an impulse on it.From: Conceptual Physics, by Paul Hewitt. 11th Edition, Ch. 6 pg. 89.
Can a moving object have impulse in itself?
yes moving objects have impulse
How do you calculate speed acceleration and momentum?
Acceleration (ms^-2):The definition of acceleration is the change in speed over time.= change in velocity/time= final velocity-initial velocity/timeMomentum (Kg ms^-1):Momentum is defined as the power of a moving object to keep moving. In this example the heavier truck had more power to keep moving, so it caused more damage.Momentum (P) = mass(m) X velocity(v)Speed :In physics, speed is often measured in meters per second. When we travel, we often use miles per hour.Formula: Rate equals distance divided by timeRate = Distance/Time
In order to impart the greatest momentum to an object you should?
In order to impart the greatest momentum to an object, you should both exert the largest force possible upon the object in question and extend that force for as long as possible. This is so because the greater the force acting on an object results in a greater change in velocity, which in turn yields a greater momentum. In addition to exerting the largest force possible on an object, you should also extend that force over the longest period of time as possible, as the sustained force also produces more momentum. As p= m•v, the best method in obtaining the greatest amount for 'p' would be to manipulate either the 'm' or 'v' variables. Force= acceleration= change in velocity= MOMENTUM. Greater amount of time= MOMENTUM
What describes velocity?
two things that describe velocity is distance and time.
What is momentum relaxation time?
Momentum
Why does the resistance of conductor rise with temperature?
as the temperature rises,the drift velocity increases hence relaxation time decreases and resistance increases.
What do you mean by drift velocity and mobility of a free electron?
Drift velocity Vd = acceleration x relaxation time So Vd = (E e / m) * t Now Vd / E is defined as the drift velocity per unit electric field and known to be mobility of free electron Hence mobility = (e/m) x t Thus mobility will be different in different material as it depends on relaxation time. e/m is the specific charge of electron which is a constant value equals to 1.759 x 1011
How about if the velocity is doubled but the mass remains the same?
Momentum is a simple product of mass time velocity. So if the velocity doubles the momentum doubles.
How can it be possible for two objects with different velocities to have the same momentum?
The momentum product can be the same with different velocities; m1V=m2rV thus m1/m2=r ratio with V1=rV1.
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.
What is Impulse momentum?
Impulse momentum theory: when force is applied to a rigid body it changes the momentum of the body. it is calculated with respect to time and also the velocity is calculated.
How is impulse relative to momentum?
impulse (force x time) is equal to momentum (mass x velocity); Ft=mv
How do you find change in momentum over time given constant velocity?
Momentum = (mass) x (velocity vector).Given constant velocity, and assuming that mass doesn't change,there is no change in momentum over time.If there is any change in momentum, it can only be due to a change in mass.It would change in direct proportion to the mass, and the direction of themomentum vector would remain constant, in the direction of the velocity.
How can impulse increase?
Impulse is denoted as a change in momentum. Momentum has the units of kilogram meter per second. Which is mass times velocity. So you can decrease the time and increase the velocity to increase the impulse.
What is impulse momentum theory?
Impulse momentum theory: when force is applied to a rigid body it changes the momentum of the body. it is calculated with respect to time and also the velocity is calculated.
What is speed times time?
Speed times time equals distance
