a. this may not be very technical but say, the temperature of the environment may also play a part in the heating factor?
b. you could probably that your heat body is heated in an enclosed environment (don't know the thermodynamic terms), since i think the specific heat capacity of copper...
one way is to imagine where the current is going. the shortest route from F-G is direct via R4. another path is R3+R5, which are in series and together, are parallel to R4. next, R1+R2 is parallel to R3, so we revise our calculations for R3+R5.
are you sure your data is correct? your working is correct except for the part where you should have put 80 instead of 60 seconds. plus the part about 15 W and 24 KW doesn't match...
for a variable to be proportional to another, it implies a relationship of
A = kB (or B = pA)
where A and B are the related variables, and k or p is the constant depending on how you write the equation. thus they can be related as a straight linear line.
the radius does change when the period...
a = (v-u)/t
given u = 0, and v = s/t
a = s/t^2
= 0.4 ms^-2
(assuming non-frictional planar flat surface, linear acceleration)
thats what i think, at least
Homework Statement
1. In a region of space, a particle with zero total energy E has a wavefunction
ψ (x) = A x exp - (x2/L2)
a) Find the potential energy U as a function of x
b) Make a sketch of U(x) versus x
Homework Equations
time independent schrodinger's...
since it is defined (from what i can tell) as h/p,
is it interchangeable with the classical wavelength in equations involving waves in general? or is it a special separate case for matter?
that is,
for photons we have the following equation:
E = hf
E = hc/λ
can the same equation be...
if you differentiate kinetic energy wrt. to velocity, you will get momentum as the result.
what i wanted to ask is that, how can this physically explained? that kinetic energy can be viewed as the rate of change of momentum for a change in velocity? is there any analogy?
for ions with more than one proton ie. He+, Li2+ and Be3+, doesn't the extra charge factor into the equation? because it seems only the elementary charge is http://en.wikipedia.org/wiki/Bohr_radius" , hence rendering it independent of amount of positive charge present.
i used to have that too, it was more frequent when i was younger than now when I am older. i felt like a tiny insignificant speck in a corner, and how everything is bearing down on me. i still recalled the time when i woke up late at night, yelling about how a train was about to crash through...