Recent content by GingerBread27

Molarity---Organic lab help Ok so I have to figure out how many moles of acetic anhydride is used in an experiment I'm doing tomorrow and all I am told is that the density is 1.08 g/ml. Am i suppose to be able to figure out the number of moles with just this information or should I be told...

For the problem I posted above would it be correct to do: (1/do)+(1/di)=(1/f)=== (1/2)+(1/di)=(1/7), to get a di=-14/5=-2.8 cm, putting the image at 2.8 cm to the right of the lens? Or am I completely clueless as to what focal length truly means, I thought it meant that the image was 7 cm...

I'm having a lot of trouble drawing ray diagrams (this is for a lab assignment). If anyone could give me some tips or links to websites that are helpful in teaching how to draw ray diagrams that would be great. One example of a problem is: A 1-cm tall arrow (the object) is placed 2 cm to the...

A corner reflector is to be made from a triangular prism with index of refraction n=2.56, as shown in the diagram on your assignment. What is the maximum angle (in °), with respect to the normal to the front surface of the prism, (theta), such that total reflection will occur? Ok this must be...

Find magnetic field at point on Circumference/Ampere-Maxwell Eq. A uniform electric field points in the z direction with a value given by EZ(t) = a+bt, with a = 18 V/m and b = 2 V/(m s). The electric field is confined to a circular region in the xy plane with radius R = 4 meters. What is the...

A circular loop of radius 17 cm is located in the plane of the paper inside a homogeneous magnetic field of 0.7 T pointing into the paper. It is connected in series with a resistor of 131 ohm. The magnetic field is now increased at a constant rate by a factor of 2.2 in 15 s. Calculate the...

The diagram on your assignment depicts a rectangular wire loop of width a = 13.5 cm and height b = 6.85 cm, that is connected to a current source that when turned on, gives rise to a current I = 0.20 Amps in the wire. The loop is suspended in a uniform magnetic field B = 0.30 T that points in a...

Two long parallel wires are a distance of d = 4.5 cm apart and carry equal antiparallel currents of 1 Amperes. Find the magnetic field intensity (in T) at the point P which is equidistant from the wires. (R = 2 cm). Now I really thought I had this. I thought the magnetic field at P would...

An infinitely long wire is formed as in the diagram on your assignment. It is formed so that it has a circular portion of R = 50.0 cm and the straight portion is located at a distance r from the center of the circular portion. Find r (in cm) such that the net magnetic field at the center of the...

This is for a homework assignment for Physics 2 with Calculus.

Consider the above infinite chain of resistors. Calculate the effective resistance, R in ohm of the network between the terminals A and B given that each of the resistances labelled r=4180 ohm. I've split the resistor and I've done R^2-Rr-r^2=0, solving for R and I don't get the right...

The electric potential along the x-axis (in kv) is plotted versus the value of x, (in meters). Evaluate the x-component of the electrical force (in Newtons)on a charge of 2.10 micro-C located on the x-axis at x=-3.6 m. Ok I 'm doing Ex=-dV/dx. I get the slope to be (-7500 N/C) from doing...

As shown below, an infinite number of point positive charges of 8.0 C are placed on the x-axis at x=a, 2a, 4a, 8a, ... with a=18 cm. Find the electric potential (in V) at the point x=0. 0---a----2a---4a-----8a------- Ok so I'm using the equation V=1/(4piEpsilon)Sigma(q/r). and it's not...

I know how to use the law with two particles and sometimes with three, but the way this problem is set up has me a bit confused. Use coulomb's law to find the electric force (magnitude and direction) on q for (a)q=2e-6 C and (b)q=-4e-6C. The picture is this *sorry I have to actually draw...

I'm confused as to what happens when the SRY gene is not present. In the book I use it says the gonads will become ovaries,but in my class notes it says testes will form. Can someone please explain to me SRY and what it relates to? Thanks