# Posts by Maranda

Total # Posts: 30

physics Damon???
thank you soooo much.

physics Damon???
The sugar concentration in a solution (e.g., in a urine specimen) can be measured conveniently by using the optical activity of sugar and other asymmetric molecules. In general, an optically active molecule, like sugar, will rotate the plane of polarization through an angle ...

physics
thank you so much damon

physics
The thermal conductivity of concrete is 0.80 W/m-C° and the thermal conductivity of wood is 0.10 W/m-C°. How thick would a solid concrete wall have to be in order to have the same rate of flow through it as an 8.0 cm thick wall made of solid wood? (Assume both walls ...

Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115°F. Six months later the temperature has dropped to -2°F.How much space now exists between each rail?

Thirty microcoulombs of NEGATIVE charge experiences an electrostatic force of 27. mN. What is the magnitude and direction of the electric field?

he thermal conductivity of concrete is 0.80 W/m-C° and the thermal conductivity of wood is 0.10 W/m-C°. How thick would a solid concrete wall have to be in order to have the same rate of flow through it as an 8.0 cm thick wall made of solid wood? (Assume both walls ...

en meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115°F. Six months later the temperature has dropped to -2°F.How much space now exists between each rail? (The linear expansion coefficient for steel is ...

An elephant can hear sound with a frequency of 15.0 Hz. What is the wavelength of this wave? The speed of sound in air is 343 m/s.

physics
Thirty microcoulombs of NEGATIVE charge experiences an electrostatic force of 27. mN. What is the magnitude and direction of the electric field?

Damon?? can you help me out on this one please

A typical laser used in introductory physics laboratories produces a continuous beam of light about 1.0 mm in diameter. The average power of such a laser is 0.75 mW. (i) What is the average intensity? (ii) What is the peak intensity? (iii) What is the average energy density of...

physics
A typical cell membrane is 8.0 nm thick and has an electrical resistivity of 1.3 × 107Ω.m. (i) If the potential difference between the inner and outer surfaces of a cell membrane is 75 mV, how much current ﬂows through a square area of membrane on a side? (ii...

physics
In a particle accelerator, a proton reaches an acceleration of 9.0 × 1013 m/s2. The mass of a proton is 1.7 × 10 -27 kg. What is the force on the proton?

Language Arts
yes i believe it is C

Math
Combine the three simple statements below in a compound sentence of the form . That is, provide a written statement in which you translate this symbolic statement to English. p: the ball is lost q: he will drink wine r: the boy rides the bike

Chemistry
The activity of a stock isotope is 10,000 DPM/0.10mL. If 0.25 ml of this stock is placed in 2.50 ml of water, what is the activity in the diluted specimen? My guess is that I just multiply the 10,000 DPM by the 1/10 dilution factor. I then come up with 1,000DPM/0.10ml. Does ...

Chemistry
two* peaks

Chemistry
We had to calculate the resolution between to peaks resulting from an HPLC assay using an internal standard for determination of an analyte "x". I came up with 2.6, which is considered good resolution. Now we are supposed to calculate the concentration of the unknown...

Chemistry
I have no idea where to even start with this. It seems like it should be simple, but I have no clue. The question is... "In serum, about 55% of total serum calcium is bound. The measurement of ionized (free) calcium with an ISE is 1.10 mM. What is an estimate of the total...

Laboratory (math, chemistry)
Most analytic methods are subject to drift. Describe a system which could be used to determine the rate of drift of an analytic method.

Chemistry/Normal Distributions/Math
I might have figured it out and it was easier than I though it was if I'm correct. Does this look right?.... Lower Limit = mean - 2SD and Lower Limit = 9.2 mg/dl 9.2 = ((9.2+10.2)/2) - 2SD 2SD = 0.5 SD = 0.25??

Chemistry/Normal Distributions/Math
I'm confused on how to calculate the standard deviation for this... The 95% confidence limit for calcium in control sera is reported as 9.2-10.2 mg/dl. Calculate the value for one standard deviation and the coefficient of variation for this data.

Algebra2
A triangle has points A(1, 2), B(1, 6), and C(3, 6) and is reflected over the x-axis and then over the line y = x. A"B"C" are the coordinates of the reflected image. What is the A" coordinate?

Test tube one had 5mL of HgCl2, and for the first reaction I added 5 drops of SnCl2. I did the exact oppisite for test tube two. Then I added 5mL of SnCl2 to test tube one for the second reaction, and 5mL of HgCl2 to test tube two.

Questions: 1. In each test tube, a precipitate formed upon DROPWISE addition of the second reagent (steps 5 and 6). What are these precipitates? (a) First test tube with HgCl©ü : (b) Second test tube with SnCl©ü : 2. In each test tube, which reagent was ...

Chemistry
Questions: 1. In each test tube, a precipitate formed upon DROPWISE addition of the second reagent (steps 5 and 6). What are these precipitates? (a) First test tube with HgCl©ü : (b) Second test tube with SnCl©ü : 2. In each test tube, which reagent was ...

statistics
with 2 yellow, 8 red, and 2 white chips what is the probability that the chip pulled will be yellow?

English
Which of the following words is bias free? A. Mailman B. Spokesman C. Firefighter D. Waitress Would it be (C)firefighter? Thank you for your help! yes.

PSYCOLOGY QUESTION--PLZ HELP!!
FILL IN THE BLANK WITH THE APPROPRIATE RESPONSE TO THE FOLLOWING: Alisha is being treated by her doctor for a hypothyroid condition. At the same time,she is seeing a therapist, who favors the psychlogical model, for treatment of intense emotional fluctuations and poor ...

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