# 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

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

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