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A simplified set of cross sections for Argon gas can be described as:

Elastic collision cross section Qel(E) = 1.59x10-19 m2 (E/E*) if E<E* = 11.55 eV

= 1.59x10-19 m2 sqrt(E*/E) if E>E* = 11.55 eV

Ionization cross section Qion(E) = 0 if E<Ei = 15.9 eV= 3.18x10-20 m2 log(E/Ei) (Ei/E) if E>Ei = 15.9 eV

Assuming a Maxwell-Boltzmann distribution function for electrons, plot the following quantities as a function of the electron temperature in a range from 1 to 10 eV for a plasma at 100 Pa and Tgas = 300K:

1) The average elastic collision frequency

2) The average ionization frequency

Elastic collision cross section Qel(E) = 1.59x10-19 m2 (E/E*) if E<E* = 11.55 eV

= 1.59x10-19 m2 sqrt(E*/E) if E>E* = 11.55 eV

Ionization cross section Qion(E) = 0 if E<Ei = 15.9 eV= 3.18x10-20 m2 log(E/Ei) (Ei/E) if E>Ei = 15.9 eV

Assuming a Maxwell-Boltzmann distribution function for electrons, plot the following quantities as a function of the electron temperature in a range from 1 to 10 eV for a plasma at 100 Pa and Tgas = 300K:

1) The average elastic collision frequency

2) The average ionization frequency

When a body has stored PE then when does it convert into another form like KE?

Is it that it converts only when a conservative force works on it?

Eg a ball falling down has KE

Because it's PE is converting into KE

Why doesn't Conservative force store KE directly instead of converting PE into KE?

Is it that it converts only when a conservative force works on it?

Eg a ball falling down has KE

Because it's PE is converting into KE

Why doesn't Conservative force store KE directly instead of converting PE into KE?

Is PE stored in an object when a work is done against a conservative force like graviity?

I want to ask that if a conservative force does work directly then PE can't be stord?

I want to ask that if a conservative force does work directly then PE can't be stord?

When we lift chair and move with it has kinetic energy and potential energy

This I understood from ans given by you

But what happens when I stop where does that KE go

And where PE is utilised

This I understood from ans given by you

But what happens when I stop where does that KE go

And where PE is utilised

A ball is tossed from an upper-story window of a building. The ball is given an initial velocity

of 8.00 m/s at an angle of 20.0° below the horizontal. It strikes the ground 3.00 s later.

(a) How far horizontally from the base of the building does the ball strike the ground?

(b) Find the height from which the ball was thrown.

(c) How long does it take the ball to reach a point 10.0 m below the level of launching?

of 8.00 m/s at an angle of 20.0° below the horizontal. It strikes the ground 3.00 s later.

(a) How far horizontally from the base of the building does the ball strike the ground?

(b) Find the height from which the ball was thrown.

(c) How long does it take the ball to reach a point 10.0 m below the level of launching?

Find the potential energy function associated with the force

(1) F=–YZ i–XZ j–XY k

(2). F=cx³

(1) F=–YZ i–XZ j–XY k

(2). F=cx³

When I lift a chair and hold it it stores potential energy

But when I start moving by holding it in the same position at the same height what energy conversions take place

What happens to that potential energy??

But when I start moving by holding it in the same position at the same height what energy conversions take place

What happens to that potential energy??

A flea walking along a ruler moves from the 45 cm mark to the 27 cm mark.What is the displacement? (Define increasing numbers to be the positive direction and decreasing numbers to be the negative direction.)

a car 5 kg drives at 10m/s.the car drives faster for 15s which provides 20j more of energy. if it takes 100j to overcome friction then what is the final speed of the car

A one peso coin is dropped from the leaning tower of Pisa. It atarts from rest and falls freely. Compute its position and velocity after 2.0,3.0and 4.0 seconds.