Recent content by physicsdawg

Question about viruses ... Homework Statement The question is true or false: All virus particles produced from infected cells are infectious. Homework Equations conceptual The Attempt at a Solution I find this to be very confusing. On the one hand, some virions are...

Homework Statement how would you draw this structure in 3d using dash-wedge representation? HN=C=CH2 From my guess, I drew the N=C=C as being parallel, and the two hydrogens coming off the second C without having any dashes or wedges, but curving at 120 degrees from the carbon. For the...

physics textbook

k i edited it

Homework Statement An object is 18cm in front of a diverging lens that has a focal length of -12cm. How far in front of the lens should the object be placed so that the size of its image is reduced by a factor of 2.0? Homework Equations 1/do + 1/di = 1/f m= -di/do The Attempt at a Solution...

but by this I get the thumb to point out of page, the fingers to point to the right, and the force to point directly up...and I do not see up as a choice...aaah i can't conceptualize

is the answer correct?

aah so it will also be up?

Then It will go to the right, away from the battery, correct? With the right hand rule, fingers are straight and thumb is pointing away from fingers at a 90* angle. A line going directly from thefinger tips will be the direction of the magnetic field. A line coming straight out of your palm...

hmm still confused, would the force then be pushing down for the first part? and the last 2 right? if I'm wrong could you tell me why i have a test today and want to know these problem explanations in and out

Homework Statement Wut force will the rod that rests on the 2 parallell rails feel when the battery switch is closed http://s336.photobucket.com/albums/n343/physicsdude69/?action=view&current=phys2.jpg a. to the right b. out of the page c. to the left d. into the page Homework...

hmm so will the net force act then against the object? such that for a. Up b. zero c. down

okay so it looks like i had reversed it then a. should be clockwise b. zero c. counterclockwise to counter the into page but still how can i figure out the forces...this whole RHR technique confuses me so much and is so frustrating to visualize

anyone?

Homework Statement A small metel ring, as illustrated by the picture, is dropped into a region of constant magnetic field. For regions 1, 2 and 3, determine (a) whether the induced current is clockwise, counterclockwise, or zero (b) whether the magnetic force on the ring upward...