Physics equations (1 Viewer)

[eXtO]

Anyone got a list of the ones that arent given to us in the exam?

Would make it alot easier for me, plus im lazy



-ex

 

[Forbidden.]

 

[wrxsti]

er, what are the last 3 equations?

 

[helper]

Third last one is for the work function in Photoelectric effect.
Second is the Color Index in Astrophysics.

Not sure about the last one.

You could add the current in the transformer reaction.

Also remember how to make ratios like r₁³/r₂³=T₁²/T₁²

 

[Forbidden.]

Third last one is for the work function in Photoelectric effect.
Second is the Color Index in Astrophysics.

Not sure about the last one.

You could add the current in the transformer reaction.

Also remember how to make ratios like r₁³/r₂³=T₁²/T₁²

E_kmax = hf - Φ = hf - hf₀ = qV_stop

The last one was supposed to be a ratio of the distances and masses between two stars.

About the transformer one:

V_p/V_s = I_s/I_p = n_p/n_s

 

[Trebla]

You usually won't be required to use formulas outside the formula sheet. If you do, you would probably be expected to derive it or simply substitute into two or more formulae simultaneously.

 

[Omie Jay]

I=cBf

 

[morganforrest]

B=kI/d ===> field strength a certain distance, d, away from a long straight current carrying conductor

 

[helper]

There are also the defintion equations like:
q=It
W=qV

 

[wrxsti]

There are also the defintion equations like:
q=It

i think i know this equation from somewhere..... ummm...... i think its from chemistry ( i miss it already ).. Electrolysis. Faradays law for Electrolysis?

 

[Forbidden.]

i think i know this equation from somewhere..... ummm...... i think its from chemistry ( i miss it already ).. Electrolysis. Faradays law for Electrolysis?

It's the current defined as charge per unit of time.
Its unit is Amperes (A) or Coulombs per second (C.s^-1), because the unit per charge is the Coulomb (C) and the unit for time is seconds (s).
Preliminary knowledge is a prerequisite, but people remember it to a certain degree.

 

[Snarkie]

It's not an equation but for those who are doing Astrophysics, it is important to remember that 1 parsec = 3.26 light years (easy way to remember is 3 x 2 = 6). As far as I know, it is the only value that we may need but is not given on the date sheet.