Recent content by kthejohnster

If I use hydrogen-like orbitals for other atoms, how are the number of nodes and probability density affected?

Homework Statement Calculate the molecular weight of unknown acid by titrating with 2N H2PO4 and 2N NaOH Homework Equations ph = pka + log[a-]/[ha] The Attempt at a Solution So i graphed titration with both acid and base with equivalents used vs ph, how would i use the number of...

im having difficulty understanding how light leaves a prism mainly because I am not sure about what angles we are talking about when we say angle of refraction/incidence. Lets say for example light hits a triangular prism leg at a 90 degree angle (incidence = 90 deg?) and the prism has index of...

Homework Statement A 45,45,90 glass triangular prism (n=1.52) is surrounded by air. If a light ray comes into one of the legs (not hypotenuse) at a right angle which legs have total internal reflection?Homework Equations n_1sinx_i=n_2sinx_r The Attempt at a Solution i figured out that the...

Thanks, I know that the integral is equal to the sum of value * dt for the time but don't know how to write it in matlab. I have my plot x_plot and its a periodic function with period T how would I calculate the area under 1 period?

how could i use MATLAB to find area under graph using numerical methods that the integral of flow vs time graph is 1/T*sum(Qti)dt or at least i think that's what the formula is, if not please help

yes the pole is vertical overhang off a table

Homework Statement how does the tension of a mass on a pole change as you move the mass towards the end? Homework Equations T=mg The Attempt at a Solution i thought tension was just mass times acceleration (gravity) so I am not sure

Homework Statement if i have source separation between 2 light sources, d, and wavelength, λ, what is the highest order node and antinode? Homework Equations The Attempt at a Solution im not sure where to start for this question I am leaning towards division to cancel out the meters

Homework Statement how do you get the beat frequency from the beat envelope of two intersecting waves as in the attachment Homework Equations fb=f1-f2 The Attempt at a Solution i thought maybe to get the frequency of the actual wave but don't think that's right

Homework Statement If you submerge a 3cm cube of ice in cup of water, with what force will the ice float up to the surface Homework Equations ρgV, F=ma, ρgh The Attempt at a Solution I thought to draw free body diagram of vertical forces with mg of ice cube and ρicegAhtop surface...

at top when at rest i think PE=mgh and KE=0

so would that be mg+ma because opposite of gravity would be mg and the force opposite friction seems to be ma or is there a separate y force and x force

well there's the weight of the car downwards, the normal force from ground probably equal to that since car isn't moving upwards. then in the horizontal there is each wheel friction in direction of car moving

Homework Statement a car of mass 1500kg and decelerating 15ms-2. what is the total force of car on road from all tires? Homework Equations W=mg F=ma The Attempt at a Solution I'm not sure if the force is simply mg or if it is ma in this case. There is also a frictional force but I...