# Posts by Ria

Total # Posts: 60

**physics**

An arc lamp operates at 80V . suggest a method to use it with 240 V d.c. source

**physics**

An arc lamp operates at 80V . suggest a method to use it with 240 V d.c. source

**Chemistry**

Use rhydberg formula

**English**

doing research on a report for how study scheduling apps can help students. the apps i have chosen are evernote, my study life and my homework. The info i need is how these apps can benefit students and how they can actually help and how they coorelate to academic success. I ...

**Communications**

True but what if the students don't need help from tutors and they prefer to work individually ? Me and my partner are focussing on time Managnemt so the study guide , or health so physical activity

**Communications**

No no u guys misunderstood, we are supposed to research a way that will make the lives of students easier. So example is a way (physical activity) can help relieve students stress We must consider one facet of the students life like academic success , health, saving money etc ...

**Communications**

I need help brainstorming ideas for the following below: our assignment is that : "You have been asked by the college union to research a way that will make the lives of its students easier. You should consider ONE facet of a students’ life that you would like to ...

**Chemistry **

How much ethylalcohol must be added to 1litre of water so that the solution will freeze at 14 farenite, kf of wa ter is 1.86 c/mol

**Math- Geometric solutions and problems RIA**

A. -x^3 and x^11 ; 3 B. 0.6 and -0.002025; 2 C. x^2,x^6,x^10.... (A sub 20) * sorry for the sub :D but I guess that's already clear? Hehe. D. a^2/2 , a^4/4, a^6/8.... (A sub 10) E. X+1, 2x^2 + 2x, 4x^3 + 4x^2 (A sub 6) F. 32y^2, 16y^2, 8y^2 (A sub 8) * sorry for the sub ...

**Math - Geometric**

In a geometric seq. Where the first three terms are 9, -6 and 4 which term of the sequence is 256/729 ?

**Math- arithmetic**

A pile of blocks has 60 blocks in the bottom row, 54 blocks in the second row, 48 blocks in the third row, and so on until there are only 6 blocks on the top row. How many blocks are in the 8th row? 10th row?

**chemistry**

calculate no of neutrons present in 1*210^25 atoms of oxygen(atomic no of oxygen=8,mass no of oxygen=17

**Science**

How far away from the pinhole should you move the screen to obtain a 5cm high image of a girl who is 125cm tall and stands 250cm away from the camera?

**Algebra**

It's 2 and 12

**chemistry**

What volumr 0.250 mol/L hydrochloric acid is neutralized by 1.50g of calcium hydroxide?

**Science**

What volume of 0.250 mol/L hydrochloric acid is nuetralized by 1.50g of calcium hydroxide?

**Algebra 2 Homework**

1.) Identify the axis of symmetry. f(x) = x2 + 10x + 9 2.) Find the vertex for the parabola given below. f(x) = 3x2 + 12x + 16 3.) Find the quadratic function that includes each set of values. (1, 0), (2, 5), (4, 21) 4.) f(x) = -2x2 - 3x + 35 Is this parabola concave up or ...

**maths**

the tens digit of a two digit number is 5 more than the units digit. when reversed and added to the original number the answer is 99. find the original number.

**trig**

find the minimum and maximum value of sin100 degree plus cos100 degree

**math**

General solution of cot2x=cosx+sinx

**Subtracting 3 digit numbers**

127

**Math**

A jar has eight red, nine blue, and ten green marbles. What is the least number of marbles that you can remove from the jar and be certain that you have three of the same color?

**Algebra**

25

**english**

In the following stanza from “I heard a Fly buzz—when I died—,” which words form a slant rhyme? The Eyes around—had wrung them dry— / And Breaths were gathering firm / For that last Onset—when the King / Be witnessed—in the Room — A...

**Math--polynomial equation**

Write a polynomial equation with these roots. a)-1,2+sqt3,2-sqt3 b)2,5,1 sqt= square root

**Math--polynomial equation**

Write a polynomial equation with these roots. a)-1,2+ã3,2-ã 3 b)2,5,1

**corporate finance**

Suppose that you are now in your final semester of your MBA programme and you are faced with the choice of either getting a job when you graduate or continuing your study for a doctoral degree. Of course, your choice is not purely financial. However, to make an informed ...

**corporate finance**

You have been hired as a consultant for Melody Harmonitune Sdn. Bhd. (MHSB), a manufacturer of fine zithers, to evaluate a capital budgeting proposal. MHSB observes that the market for zithers is growing quickly. To confirm their observation, the company hired a marketing firm...

**corporate finance**

Year 0 1 2 3 4 Units Sold 3,200 4,300 3,900 2,800 Price per unit 780 800 820 840 Total Revenue 2,496,000 3,440,000 3,198,000 2,352,000 Variable cost (15%) 374,400 516,000 468,000 344,400 Variable cost has to be adjusted to make it Rm 120 & 123 for 3rd & 4th year Fixed Cost ...

**corporate finance**

Your company is considering diversifying its investment in financial securities into both stocks and bonds. You are asked to evaluate the following alternatives and make your recommendations as to the securities that your company should select. Bonds: There are several bonds ...

**physics**

A circuit contains a 10 µF capacitor and a 30 µF capacitor connected in parallel. What is the total capacitance of the circuit?

**math**

a) -x/2 +5 = 6x x=10/13 A= 1/2 (b)(h) A= 1/2 (10/13)(5)= 25/13 b) height=b width= x =-b/m A= 1/2 (-b/m)(b)= -b^2/2m c) x=5/(1-m) 10=1/2 (5) (5/(1-m)) m= -1/4

**statistics**

for a distribution standard deviation=10.If every item is increased by 2 then what will new standard deviation?

**math**

lets look:90 ft will be 9 sections, 100+25+50+75+ 100+ ....25(i)...where i goes from 1 to 8 cost= 100+ Sum25i from i=1 to INT(h-10/10 (h-80) but this is an arithmetic progression cost= 100+ n/2(2*25+(n-1)25) = 100 (4(50+375))=100+425*4=1800

**Math**

Solve for y using the multiplication principley/5= -6

**ethics**

Does the principle "the end justifies the means" hold true under each the three major ethical theories? Why or why not.

**ethics**

A person driving home late one evening on a dark, deserted road comes across a single-vehicle accident. Getting out of the car and viewing the damaged vehicle, it is clear that the lone occupant, the driver, is hurt and unconscious. Wishing to help the injured person, the &...

**psychology**

Thanks for the ideas!

**psychology**

I do not want anyone to do this for me I just want someone to help me brainstorm some ideas that's all.

**psychology**

I would just like some ideas on how to go about this. What hypothesis would you make? Why is your research method an appropriate one for your hypothesis? What are the advantages and disadvantages of using your research method for this study? How will your study help Rasmussen ...

**psychology**

describe how you would design a research study based on the method assigned to you by last name.

**psychology**

Imagine that Rasmussen College has asked the psychology department to research the study habits of its students

**Modern HIstory**

Hi can someone explain to me how to do a research question/hypothesis for an analytical essay about Hitler? Thank-you The teachers explaination confused me!

**chemistry**

An unknown gas Q requires 2.17 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the molar mass (g/mol) of Q?

**math**

List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. ...

**chemistry**

How many silver atoms are there in 3.88g of silver

**Physics**

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a constant acceleration ...

**precalculus**

for f(x)= (3-5x)^1/2, find f(x+h)-f(x)/h

**Calculus**

Given vectors u= (t, 2t, 3) and v=(2t, 5t, -1). For what values of t a) are u and v parallel? b) are u and v perpendicular?

**Calculus**

Let OP be any vector with direction angles theta, beta, and gama. Explain why cos^2theta + cos^2beta + cos^2gama = 1

**calculus**

Under what conditions does |proj of a on b| = |proj of b on a| for two non-zero vectors?

**Vectors - check calculation**

A box is dragged with a force of 115 N up a ramp a distance of 3 m. If the force makes an angle of 35 degrees with the ramp and the ramp makes an angle of 20 degrees with the ground, how much work is done? This is what I have so far: W = F * D * cos Theta =(115) (3) (cos 55...

**Vectors**

A 50 N force is applied to the end of a 30 cm wrench and makes an angle of 30 degrees with the handle of the wrench. What is the Torque on the bolt at the other end of the wrench? What direction does the Torque act? What is the Maximum and Minimum Torques and how are these ...

**social studies**

what is the role of the vice pres?

**english-metaphor**

i am a rainbow.

**Chemistry 11**

When HCl reacts with Na2CO3 and H2O, what is created? More specifically, what are the crystals that remain? The questions that I need to answer: 4) What is the shape of the crystals of the product? 5) Have you seen crystals like these before, where? I wasn't able to see ...

**Chemistry**

When HCl reacts with Na2CO3, what is created? More specifically, what are the crystals that remain? The questions that I need to answer: 4) What is the shape of the crystals of the product? 5) Have you seen crystals like these before, where? I wasn't able to see the result...

**GNP**

What is the GNP of Scotland Please, cant seem to find anywhere!!

**Micro Economics**

Do you think you can tell something about overall investor optimism or pessimism by looking at the credit spreads and how they've changed recently? what could you tell, and what would you look for?

**science**

add them up then divide by 2 and theres your answer duh