How do I apply specific astronomy concepts I have learned to calculations?

Hi, I have a few questions about concepts I've learned and using them with equations.Firstly, I know there are differences in calculations when it comes to north and southern hemispheres. When... more

03/23/25

Concentration of all solute species

Calculate the concentration of all solute species in each of the following solutions of saltsin contact with a solution containing a common ion. Show that changes in the initial concentrations of... more

03/23/25

Finding Ksp Solubility Product

The molar solubility of Ag2SO4 in pure water is 1.4 × 10–2 M. Calculate Ksp.

pH of Aspirin given pKa

Aspirin pKa of 3.5 Molar Mass = 180.15 g 32oz = 1.0567LCalculate the pH of a solution in which one normal adult dose of aspirin 6.50X 102 mg is dissolved in 8.0 oz of water. I have attempted this... more

03/23/25

A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Find PH!!!

A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3Kb NH3 = 1.8 x 10-5a) pH of the solution before addition of any HNO-b) pH of solution after addition of the 50.0 mL of HNO3

03/23/25

Titration of HNO2 with NaOH...need pH

Consider a titration of 10.0 mL of 0.30 M HNO2 with 0.10 M NaOH.Ka HNO2 = 7.1 x 10-4a. pH of solution before titration begins?b. pH when 12.00 mL NaOH has been added?c. pH when 15.00 mL NaOH is added

03/23/25

Methods to calculate speed and distance of objects in orbit

I know that you can use Kepler's second law to calculate the speed an object travels at perihelion but arethere any other methods that I can use to calculate this? For example if I'm only given the... more

03/23/25

A semi-circle with a filled point at its center.

\[10\]\[?\]Find the arc length of the semicircle.Either enter an exact answer in terms of \[\pi\] or use \[3.14\] for \[\pi\] and enter your answer as a decimal.

03/23/25

How to find the absolute maximum of f(x,y)=x^2+y^2 at which 0<=x,y and 5x+9y<=9

Everything is in the title, I don't really know how to start with this one :( I know the absolute minimum is (0,0) but don't know how to even begin with absolute maximum.Restating equation just in... more

03/23/25

if f(x)=4x arccos(3x+3) - sqrt(11-4x^2), what is f'(x)

What's the difference between cash and accrual in accounting?

One of the hardest concepts for new Accountants to grasp is the difference between cash based accounting and accrual accounting.

03/21/25

CHEM 2 Solubility

Calculate the Qsp or Ksp, as indicated, and determine whether a precipitate will form when each of the following mixtures is prepared. (You may assume temperature is held constant, volumes are... more

is there some more human help available towards a more focused job search?

I'm sure I'm not the only job seeker who has noticed that job descriptions for open positions are becoming increasingly detailed and specific. In addition, of course my own current position is... more

03/21/25

Are You in Need of Someone to Help You with Homeschool Pods or Perhaps You Are a Church with a Small Christian School?

Are you in need of someone to help you with homeschool pods or perhaps you are a church with a small Christian school (or in the process of starting one)? I have a background in education that... more

03/21/25

Potential Employment

Does your organization have any need for tutors in history?

03/21/25

Write a paragraph proof about a theorem on right triangle

Hypotenuse angle theorem, if the hypotenuse and an acute angle of one right triangle are congruent to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent. more

03/20/25

A Nurse’s Priority: Who Should Be Seen First?

The nurse just received shift report on four clients. Based on the information provided, which client should the nurse assess first?A. A 45-year-old with pneumonia who has a temperature of 101.2°F... more

03/20/25

Practice MCAT exams?

When should I start taking practice MCAT exams?

03/20/25

Simple Equations

A firm manufuctures a commodity that costs $20 per unit to produce. In addition, the firm has fixed costs of $2000. Each unitis sold for $75. How many units must be sold if the firm is to have a... more

03/20/25

what is (8, -4) reflected across the y axis

03/20/25

How does this sentence use the word "elicit"?

During the debate, the instructor asked a question that was intended to elicit serious answers from the students, encouraging them to consider the subject matter carefully and share their own... more

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