Friday

January 20, 2017
Total # Posts: 781

**Social Studies**

which river flowing through Ukraine serves as an important route to the black sea?

*January 12, 2017*

**Physics**

A ball is allowed to fall freely from certain heightn. What distance it covers in 1st second?

*January 11, 2017*

**Math**

Beth is waiting for her friends plane to land. the plane will land at time T uniformly distributed in 70 minuetes. Determine the probability that the Plane will land in 30 minutes?

*January 3, 2017*

**engineering**

b) The crank OA of a mechanism, as shown in the figure, rotates clockwise at 120 r.p.m. The lengths of various links are OA = 100 mm ; AB = 500 m ; AC = 100 mm and CD = 750 mm. Find by instantaneous centre method: 1. Velocity of point C. 2. Velocity of slider D. 3. Angular ...

*December 30, 2016*

**math**

5x^2-3x-9

*December 21, 2016*

**math**

Find a polynomial, which, when added to the polynomial 5x2–3x–9, is equivalent to: 0

*December 21, 2016*

**math**

a man was trying to swim to a buoy placed at a distance of 200m out in the sea. it took him 1 min to swim 20m. then a wave pushed him back 10m and he rested for about 1min before swimming again. he continued in his way for the rest of their journey. how long would it take the ...

*December 20, 2016*

**math**

the length of a rectangle is 2 less than 3 times the width. the perimeter is 20 cm. find the length, width, and area of the rectangle. i got stuck after L=3W-2 but i'm not sure what to do after.

*December 5, 2016*

**Physics**

A car with its passengers have a total mass of 4200kg .the car is travelling along a horizontal road when it moves ,it experiences a forward driving force of magnitude F newtons and a constant resistance force(opposite to driving force)of 850N a)what is the value of F if the ...

*November 19, 2016*

**Physics**

A 40 kg child start from rest and travels 4 m down a slide that is inclined 35 degree to the horizontal. If her speed at the bottom is 2.5 m/s , what was the frictional force along the slide?

*November 17, 2016*

**math**

John and Bryan share Rs 1500.If John gets twice as much as Bryan,how much money does Bryan have?

*November 15, 2016*

**Material mechanics**

following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) Elongation(mm) 5 0.005 10 0.015 30 o.048 50 0.084 60 0.102 64.5 0.109 67 0.119 68 0.137 69 0.160 70 0.229 72 0.300 76 0.424 84 0.668 92 0.965 100 1....

*November 12, 2016*

**Material mechanics**

A flat plate specimen of a soft metal alloy is to be tested by pulling on round pins inserted through the ends of the plate, as illustrated below (a) Calculate the required diameter of the pins, given that the plate is 8.0 mm thick, the maximum tensile load is 4.0 kN and the ...

*November 12, 2016*

**math**

Write each equation in slope-intercept form. Underline the slope and circle the y-intercept in each equation. 4y=–6+4x all i got is that the y int. is -3/2 and that is correct

*November 3, 2016*

**math**

Give the equation of a line that is parallel to y=3 through the point (4,4).

*November 3, 2016*

**Math**

Prove that angle a is equal to angle E if angle D is equal to angle c Science I can't put the picture of the triangle I will try and explain it Two triangles that connect on one angle >< like this but a triangle and the angle in the middle ^ ( the angle that has the...

*October 29, 2016*

**LANGUAGE ARTS**

Dude, dont make your title "ANSWERS PLEAAAAAASSSSSSSSEEEEEEEE" cause no one will help you. just ask nicely with no caps or anything...

*October 27, 2016*

**Algebra**

I'm thinking of a number. When I multiply it by 6 and subtract 30, the answer is 78 What is Noah's number?

*October 23, 2016*

**Physics**

I=m(vf-vi) 50 N= 1.5 kg (vf-16) 33.33= vf-16 vf= 49.33 m/s

*October 20, 2016*

**Chemistry**

thanksssss I see what you said we used the Ag from AgBr to find the [I] by using the Ksp for AgI

*October 18, 2016*

**Chemistry**

Solid AgNo3 is added slowly to solution of 0.001M Cl,Br,and I a) at what concentration of Ag will AgI precipitating? at what concentration of Ag will AgCl precipitating? at what concentration of Ag will AgBr precipitating? b) calculate the percent % of I ppt before reaching of...

*October 18, 2016*

**Chemistry**

Solid AgNo3 is added slowly to solution of 0.001M Cl,Br,and I a) at what concentration of Ag will AgI precipitating? at what concentration of Ag will AgCl precipitating? at what concentration of Ag will AgBr precipitating? b) calculate the percent % of I ppt before reaching of...

*October 18, 2016*

**Chemistry**

M1V1=M2V2 17xV1=1.78X0.15 V1=0.01571 L

*October 18, 2016*

**CHEM 1411**

nM1V1=nM2V2 n= the moles from the balance equation HBr Ca(oH)2 2(0.0215)V1=1(0.015)(0.235L) V1= 0.08192L

*October 18, 2016*

**physics**

On a roller coaster, a student experiences an apparent weight of 1250 N while accelerating at 2.3 m/s^2 [U]. What is the students mass?

*October 18, 2016*

**Math**

Mr. Kole has 30 students in his class he has twice as many girls as boys what is the ratio of boys to the class

*October 2, 2016*

**nts**

how to pass nts

*October 1, 2016*

**algebra**

ewjhfkshfksjhfkjshdfksjdhfkjshdfkjs

*October 1, 2016*

**Social studies NEED HELP**

I'm thinking that the answer is finding wealth as well. Though, I'm getting hints that it's A too.

*September 23, 2016*

**Homework 2**

tnx

*September 14, 2016*

**Homework 2**

Harmony are agreeable features of classical music. are not supposed to use in here because harmony is singular. right or wrong??

*September 14, 2016*

**Homework**

thanks

*September 14, 2016*

**Homework**

He had already finished studying at an university when he was called to join the army. had/already/an/was called/when/ I think already is wrong here?? tnxxx

*September 14, 2016*

**elm and sanat**

tnx

*September 11, 2016*

**elm and sanat**

“You can’t tell a book by it’s cover” is an old adage. I guess the cover is wrong. am I right?

*September 11, 2016*

**reading**

The National Aeronautics and Space Administration (NASA) has just released some startling information. The Earth's temperature reached its highest point in 136 years of record-keeping during July. "July 2016 was absolutely the hottest month since the instrumental ...

*September 4, 2016*

**Math**

An electronic firm finds that 3/64 of the resistors it makes are defective. What percentage is this?

*August 26, 2016*

**chemistry**

which of following show cistrans isomerism?

*August 22, 2016*

**chemistry**

how many moles of fe are present in 30g of rust?

*August 21, 2016*

**Finance math**

A bank pays 10% compounded annually on its three-year fixed deposit account. At the end of the three years, a 3% bonus on the final amount will be paid. find the effective interest rate that will be earned on this scheme

*August 5, 2016*

**math**

Mr. Ali purchases a government bond for five years which gives simple interest 12% p.a. At the time of maturity he gets back 160000 AED. What amount he has invested?

*July 29, 2016*

**Stats**

Suppose a Normal model describes the fuel efficiency of cars currently registered in your state. The mean is 27 mpg, with a standard deviation of 4 mpg. Describe the mileage of the most efficient 3% of all cars. a. greater than 24.9 mpg b. greater than 19.5 mpg c. greater than...

*July 29, 2016*

**physics**

An aircraft flying at a horizontally height of 8000m above the ground at 200 metre per second drops a bomb on it's target on the ground. Find the angle between the vertical and the line joining the aircraft and the target immediately the bomb is released.

*July 12, 2016*

**physics**

An aircraft flying at a horizontally height of 8000m above the ground at 200 metre per second drops a bomb on it's target on the ground. Find the angle between the vertical and the line joining the aircraft and the target immediately the bomb is released.

*July 12, 2016*

**Math**

8a+2a

*July 8, 2016*

**Science**

When 25.0 ml of a solution containing both Fe2+and Fe3 +ions is titrated with 23.0 ml of 0.0200M KMnO4(in dilute sulphuric acid), all the Fe2+ are oxidised to Fe3+ ions. Next, the solution is treated with Zinc metal to convert all the Fe3+ ions to Fe2+ ions. Finally 40ml of ...

*July 2, 2016*

**Physics**

At what displacement the instantaneous velocity become equal to half of its maximum velocity? Plz help me

*June 26, 2016*

**chemistry**

Why reversible reaction never complete

*June 21, 2016*

**Math**

"Carlos started at sea level, climbed a cliff to a height of 14 m, then dived 19 m. Find the level at which his dive ended."

*June 11, 2016*

**financial mathematics**

bernard burrows rm8889 at 15%per annum simple interest. he agrees to settle the loan by paying x ringgit, 2x ringgit and 3x ringgit in two months, five months and nine months respectively.find the value of x using the present as the focal date 8889=x(1+0.15*0.16)^_1+2x(1+0.15*...

*June 10, 2016*

**Physics**

Find the longest wavelength by resonating air in 20 cm tube which is opened both ends

*June 5, 2016*

**Physics**

0.05

*May 28, 2016*

**Science**

The moon is about 384000 km the earth and its paths around earth is circular. The moon taken 24hr to complete one orbit. The speed at which the moon orbits the earth in km/ hour is

*May 15, 2016*

**Science**

The moon is about 384000 km the earth and its paths around earth is circular. The moon taken 24hr to complete one orbit. The speed at which the moon orbits the earth in km/ hour is

*May 15, 2016*

**chemistry**

the solubility of Mg(OH)2 at 25C is4.6x10^-3 g/100cm3? what is the solubility product of M g(OH)2?

*May 12, 2016*

**Math**

Find the volume of revolution when the region enclosed by the functions f(x)= e^x , g(x)=e^-x ,and the two lines is revolved about the x-axis Solution V=intergrate e^2x-e^-2x dx From -1to1 1/2e^+e^-2x when you sub and cal. =0 why please help me

*May 11, 2016*

**Chemistry-Dr.Bob222**

4007552

*April 20, 2016*

**Math**

The intensity of light passing through a lens can be found using the formula I=Io - Io / csc^2 theta, where Io is the intensity of the light coming in, I is the intensity of the light that emerges or goes out of the lens, and theta is the angle between. a) Find and simply and ...

*April 19, 2016*

**math**

It would be A

*April 18, 2016*

**Math**

I got 500 miles for A)

*April 17, 2016*

**Math**

Carter left town A at 8 a.m driving toward town B at an average speed of 60 mph. At 8:30 a.m, Mihn headed from town B to town A along the same road. At 11 a.m, they met each other along the way and Carter realized that he had completed 80% of his journey. A) How far was Town A...

*April 17, 2016*

**math**

sally put red ,white,and blue handkerchiefs in a drawer. One-third of the hand kerchiefs were red ,one -fourth of the hamdkerchiefs were white and ten were blue. how many handkerchiefs of each color were there?

*April 13, 2016*

**Social Studies**

The Belief that the United States was set apart to extend its boundaries to the pacific was called A) America's Destiny B) Redezvous C) Manifest Destiny***** D) Joint Occupation Is C correct?

*April 1, 2016*

**simple interest**

A total of $12,000 is invested into two simple interest accounts. On one account the annual simple interest rate is 12%, while on the second account the annual interest rate is 18%. How much should be invested at 12% so that the interest earned is the same?

*March 31, 2016*

**simple interest**

An investment club invested a part of $14,000 in a 9% annual simple interest account and the remainder in a 15% annual simple interest account. The amount of interest earned for one year was $1800. How much was invested in the 9% account? my answer =2400

*March 31, 2016*

**simple interest**

my answer 3000

*March 31, 2016*

**simple interest**

A total of $8000 is deposited into two simple interest accounts. On one account, the annual interest rate is 10%, while on the second account the annual simple interest rate is 12%. How much should be invested in the 10% account so that the total annual interest earned is $900?

*March 31, 2016*

**finance**

Q.1.Differentiate future value from present value and explain how compound interest differs from simple interest. Q.2. John expects to need $50,000 as a down payment on a house in six years. How much does she need to invest today in an account paying 7.25 percent? Q.3. Richard...

*March 24, 2016*

**economic**

Erehwon is a country where the only products produced were A & B, over 3 years, 2013. 2014 & 2015. What was the Nominal GDP for 2013, 2014, & 2015? Using 2013 as your base year, what was the real GDP in 2014, & 2015? What was the GDP deflator for 2014? Year Qty of A Price of A...

*March 10, 2016*

**geometry**

if the isosceles trapezoid is dilatede with a factor 0.5,what is the area of dialation in square yards?

*March 10, 2016*

**Language Arts (Help ASAP)**

Anyone in connexus that can help me with Lesson 19: Voices in Verse Unit Test Language Arts 8 B Unit 2: Voices in Verse I need answers pls

*March 10, 2016*

**Chemistry**

what is the concentration of each substance if a solution is prepared by mixing 5.00g of NaC2H3O2 with 15.0 ml of 1.45M acetic acid and then bringing the total volume to 250.0 ml?

*February 29, 2016*

**cHEMISTRY**

Hi

*February 29, 2016*

**Chemistry**

Why are liquids that are refrigerated and stored in glass always colder than those refrigerated and stored in plastic or cardboard?

*February 25, 2016*

**Chemistry**

Why do warm temperatures speed up the fermentation of milk?

*February 22, 2016*

**maths**

a survey of 250 people showed that 220people favored a candidate for re-election what percent of the people surveyed favoured the candidate

*February 14, 2016*

**maths**

a quality control inspector found that 1.3percent of 1500 computer inspected were defective how many computer were defective

*February 14, 2016*

**physics**

Two rings of radius 3 cm are 23 cm apart and concentric with a common horizontal x-axis. What is the magnitude of the electric field midway between the rings if both rings carry a charge of +35 nC?

*February 4, 2016*

**Language arts**

The answer is C, I had the same question.

*February 3, 2016*

**LANGUAGE**

In the parliamentary form of government, the legislature chooses and controls the executive. legislature has no control over the executive. legislature has co-equal but separate powers with the executive. executive controls the legislature.

*February 3, 2016*

**LANGUAGE**

NEED HELP PLEASE The retricerian came down like the wolf on the fold, And his cohorts were gleaming in purple and gold; And the sheen of their spears was like stars on the sea, When the blue wave rolls nightly on deep Galilee. what is the rhyme scheme of the above lines A. ...

*February 3, 2016*

**english**

15. Martin had a parochial fear of travel, so it suprised everyone when he.....

*February 1, 2016*

**Economics Macro**

78

*January 25, 2016*

**English**

Help!!!! I need a sample of English formal letter. immediate plzzzzz

*January 23, 2016*

**physics**

Help me to answer this!! What is meant by energy-mass relationship?w Explain with examples.

*January 22, 2016*

**math**

Solve this plxxx The numerator of a fraction is 2less than it's denominator.when both numerator and denominator are increased by 3,the fraction is increased by 3/20.find the original fraction.

*January 22, 2016*

**math**

I did get this explain plz... L=1680/w

*January 22, 2016*

**math**

Solve this plz The area of a rectangle is 1680msq.if it's diagonal is 58 m long find the length & width of the rectangle

*January 22, 2016*

**math**

Plz help me to solve this system of equation. 2^x+3^y=17 2^x+2+3^y+1=5

*January 22, 2016*

**math**

Plz help me to solve this system of equation. 2^x+3^y=17 2^x+2+3^y+1

*January 22, 2016*

**math**

Plz solve this problem.. A wire of 100 cm is cut into two parts and each part is bent to form square.if the sum of the areas of two squares is 425 cm square.find the length of side of two square.

*January 21, 2016*

**Math**

TO BE HONEST I DON'T REALLY KNOW SO I WAS WONDERING IF YOU GUYS HELP ME FIND THE ANSWER THANKYOU Ursula has fraction 1 over 2 cup of butter. She uses fraction 1 over 4 cup of butter to make a batch of brownies. Part A: How many batches of brownies can Ursula make with ...

*January 20, 2016*

**math**

Solve this problem plz... A rectangle has an area of 288 cm square.if the width is decreased by 1cm and length is increased by 1 cm the area would decreasedby 3 cm square.fin the original dimension of the rectangle.

*January 20, 2016*

**math**

Solve this problem plz... A shopkeeper buys some eggs at 15 cent each.6 of them are broken.while rest are sold at 20 cent each if he makes a profit of $4.8.find eggs he bought?

*January 20, 2016*

**Physics**

Plz plz answer this question..... "what is ment by the energy-mass relationship?explain it with the help of examples.....

*January 20, 2016*

**English**

I need a summary of book "eat that frog"I don't have any idea about that plzzzz help me.

*January 20, 2016*

**Math**

@Ms.Sue?

*January 20, 2016*

**Math**

A rectangular prism is completely packed with 180 cubes of edge length fraction 1 over 3 inch, without any gap or overlap. Which of the following describes the volume of this rectangular prism? 19 unit cubes and 9 smaller cubes of volume fraction 1 over 27 cubic inch each 19 ...

*January 20, 2016*

**math**

Tina uses a $50 gift certificate to buy a pair of pajamas for $17.97, a necklace for $25.49, and 3 pairs of socks that each cost the same amount. Tina has to pay $0.33 because the gift certificate does not cover the total cost of all the items. How much does each pair of socks...

*January 19, 2016*

**math**

A 6-pack of undershirts costs $13.98. This is $3.96 less than the cost of buying 6 individual shirts. If each undershirt costs the same amount, how much does each undershirt cost when purchased individually?

*January 19, 2016*