Monday
March 2, 2015

Posts by BEN


Total # Posts: 785

physics(urgent answer pls)
A projectile is launched with 30m/s at an angle of 60degree with d horizontal (a) find d position of the projectile,and d magnitude and direction of its velocity at t=2s (b) find d time when d ball reaches the highest point (c) find d horizontal range
March 1, 2015

art
A conservator is working to restore a large marble statue from a Greek temple by scrubbing it with water and soap. What is a likely drawback to this preservation? A. Breaking of large sections of marble during scrubbing. B. Removing the aged look of the statue during scrubbing...
February 24, 2015

Physics
Thank you
February 18, 2015

Physics
A box slides down a 27.7° ramp with an acceleration of 1.25 m/s². The acceleration of gravity is 9.8 m/s². Determine the coefficient of kinetic friction between the box and the ramp.
February 18, 2015

maths(urgent answer pls)
1).Find the sum of the n terms of the series Sn=1^2 + 3^2 +5^2+...+(2n-1)^2 2).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +.... 3) Sum to n terms,the series 1.3.5 + 2.4.6 + 3.5.7 +.
February 15, 2015

MATHS(sum of series)
Finding the sum of the first 2 terms of the series with the above formula won't get you the right answer
February 15, 2015

MATHS(sum of series)
1).Find the sum of the n terms of the series Sn=1^2 + 3^2 +5^2+...+(2n-1)^2 2).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +.... 3) Sum to n terms,the series 1.3.5 + 2.4.6 + 3.5.7 +..
February 15, 2015

trig
I am currently taking a trig class. I need help understanding how to solve for sin,cos, and tan in problems which give an angle and a side length or the hypotenus. Any help would be muchly appreciated
February 11, 2015

LAnguage arts
Which sentence correctly uses a predicate pronoun as a subject complement? a. The last arrivals were Joe and I b. this year's soccer champions were lana and me c. the tribute deeply touched my brother and i d. my boyfriend became my best friend is it a?
February 10, 2015

language arts
I'm sorry I copied d wrong. It's "the weather today seems very humid today" is d still right?
February 10, 2015

language arts
is it d?
February 10, 2015

language arts
Which sentence contains a predicate adjective? a.The singers latest hit is a beautiful song b. The bus has arrived at last c. We bought four juicy apples at the farmers market d. the weather seemed nice today is it a or d?
February 10, 2015

language arts
1. Which sentence contains a predicate adjective? a. The singer's latest hit is a beautiful song b. The bus has arrived at last c. We bought four juicy apples at the farmers market d. the weather today seems very humid to me 2. which sentence correctly uses a predicate ...
February 10, 2015

English
Thanks!
February 9, 2015

English
Do you have anything?
February 9, 2015

English
No... She said to choose anything to write about. I love writing but I can never think of any good ideas. I want to have a really good paper. My problem is thinking of ideas. I wish I had a really imaginative mind.
February 9, 2015

English
I have to write a poem or a story for my English class. Do you have any ideas?
February 9, 2015

stats
If Gallup has used an sis of size n=1021 and obtained the sample proportion p= 0.52 ,you can calculate that the margin of error for 95% confidence would be
February 9, 2015

stats
470
February 8, 2015

stats
Joes test score was 450(1 standard deviation below the population mean550) A good guess for Joes test score is
February 8, 2015

Math
A=2600e^0.08^t % increase each year
January 28, 2015

L.A
"Yearnings" The slab of clay before me, lifeless and lacking ambition, refuses to be molded. "Shape your dreams!" The art teacher says. "Let your hands talk to your hearts!" Nothing- Just unshaped dreams, silent hands, and hardening clay on a ...
January 27, 2015

language arts
what do you mean? they are not the same as mine
January 27, 2015

language arts
which question should you ask during your third read of multi draft reading process? 1. who is the speaker, or the voice that "says" the words of the poem? 2. How has the work expanded my ideas-or my imagination? 3. What do the word choices and imagery tell me about ...
January 27, 2015

math
what is the square root of mx and b?
January 26, 2015

Algebra
5. A piece of rope is cut into two pieces. One piece is used to form a circle and the other is used to form a square. Use a length of rope of 20 feet to write a function f representing the area of the circle as a function of the length of one side s of the square.
January 23, 2015

Art
the correct answer for that question is c
January 22, 2015

Calculus
Use a linear approximation to estimate (8.2)^(2/3)
January 19, 2015

Calculus
A student is drinking a milkshake with a straw from a cylindrical cup with a radius of 5cm. if the student is drinking at a rate of 3.5cm^3 per second, how fast is the level of a milkshake dropping?
January 19, 2015

homework help
do you know any other homework help sites that offer instant or live help?
January 10, 2015

Math
2600
January 9, 2015

language arts
Johnny struggles to overcome his pride and impatience and developed into a humble, generous man Wich type of conflict does the statement above describe? a.character vs. self b. character vs. nature c. character vs. society d. character vs. character is it a?
January 6, 2015

language arts
What is the significance of the speech James otis delivered at the last meeting of the observers? a. Many of the observers considered oits to be insane by that time b. Oits delivered an inspirational speech about the costs of war and reasons for fighting c. Otis urged the ...
January 6, 2015

language arts
choose the meaning that best matches the word "placate" in the sentence. General Gage's efforts to placate the colonists in hopes of avoiding war were not having a desired effect. A punish B please C irritate D aggravate is it b?
January 2, 2015

language arts
which of the following passages from the text suggests that johnny is becoming less self centered? (chapter 8, Johnny Tremain) 1. Johnny liked the old woman all the better that in the end she had been unable to see a consider master..humiliated, tossed about, torn by a mob 2...
January 2, 2015

math
at a sale,josh bought 4 shirts and 3 pairs of jeans for $181.at the same store,mike bought 1 shirt and 2 pairs of jeans for $94.
December 21, 2014

language arts
Which of the following passages from the novel could be used to support the idea that sam adams was a rebel intent on war with England? (Johnny Tremain) A "the first of the tea ships the yarmouth is entering the harbor. She'll be at castle island by nightfall" B...
December 17, 2014

language arts
How has the political climate of cotton changed since the beginning of the book? (Johnny Tremain, as in how has it changed from the beginning of the book to now, chapter 6) A Previously Boston considered themselves loyal British subjcts, but after parliament passed the tea act...
December 17, 2014

Math
Another question. The floor of Raj's classroom has an area of 525 feet. The room is 12 feet high. What is the volume of Raj's classroom? I had got 6300. Is this correct? I had used the formula V = B x H.
December 16, 2014

Math
Oh thank you Ms.Sue, at first I was scared because I thought it was to high.
December 16, 2014

Math
I want to check this. I had used formulas V = B x H and I x w x h to solve these What is the volume of the box that is 14 inches long, 7 inches wide and 10 inches high? I got 980. Am I right?
December 16, 2014

Stupid Complicated English Grammar
1 is the one about the wind 2 was the one about the dough 3 the yellow quilt 4idk about the rest im taking the test right now
December 16, 2014

Math
Thank you very much. I understand now. Thanks for the help!
December 15, 2014

Math
Write each of the fractions below as a division expression. Then write each fraction as a whole number or mixed number (I need help with this, because it confuses me as to how to write it as a division expression. Also sorry for no work saw.) 1. 5/4 2. 16/8 3. 14/3 4. 17/12
December 15, 2014

language arts
thank you! do you know the answer to the other question i posted?
December 15, 2014

language arts
Which of the following sentences from the novel johnny remain (chapter 5) provides evidence that Rab is having a positive effect on Johnny? A. he liked to make a handsome entrance. Even if he and Goblin had dawdled a bit on country roads, they both liked arriving at the inns ...
December 15, 2014

language arts
I'm in Jonny Tremain chapter 5 1. Which of the following is the most significant event in the plot following Jonny's accident? A. Johnny releases that Rab and his uncle are Whigs B. Rab teaches Jonny how to ride Goblin C Mrs. Lapham recruits Mr. Tweedie to replace ...
December 15, 2014

Language arts
hi brit! i have the same question? do you know the answer?
December 12, 2014

6TH GRADE MATH
Create a number line model that represents the equation below. -5 x -2 = 10 Can some help me please?
December 11, 2014

Langue Art
was it right? @i am awesome
December 10, 2014

language arts
ok thank you!
December 10, 2014

language arts
From which point of view are the sentences written from Johnny tremain? It was past dawn when he woke, his feeling of contentment still in him. He was no longer his own problem but Merchant Lyte's. Tomorrow at this time what would be calling him? 'Uncle Johnathan?'...
December 10, 2014

language arts
Thanks!
December 10, 2014

language arts
Which type of person is Merchant Lyte? A kind and generous B crass and sloppy C devious and manipulative D intelligent and hardworking Which lines from the novel best supports the answer to the previous question? A "He's sly" When merchants agreed not to import ...
December 10, 2014

algebra 1
A store’s cost for a stereo was $27. Th e markup was 75%. A customer purchased it on sale at 40% off the marked up price. What was the purchase price of the stereo? Please help!
December 9, 2014

algebra 1
A store’s cost for a stereo was $27. Th e markup was 75%. A customer purchased it on sale at 40% off the marked up price. What was the purchase price of the stereo? Please help!
December 9, 2014

algebra 1
A chemist has one solution containing 30% insecticide and another solution containing 50% insecticide. How much of each solution should the chemist mix to get 200 L of a 42% insecticide? My teacher explained how to set up the problem: 3x+5y=84 x+y=200 what I dont get is why ...
December 4, 2014

Pre-calc/Trignometry
Two boats leave at an angle of 25 pie/36 radians, one has a speed of 100km/hr and the second has a speed of 65 km/hr. How far apart are they after two hours?
December 2, 2014

Astronomy
How do astronomers know whether they are seeing planets or stars when they are distant?
November 24, 2014

chemistry physics
507Hz was the answer according to the textbook so I got it right according to that. Thanks
November 24, 2014

chemistry physics
Thanks, I used translatorscafe, has most units
November 24, 2014

chemistry physics
Had to convert 40.0 mi/h to 18m/s and 1090ft/s to 332 m/s So the answer 480*332/(332-18) =507hz Thanks for the link
November 24, 2014

chemistry physics
A car is traveling toward you at 40.0 mi/h. The car horn produces a sound at a frequency of 480 Hz. What frequency do you hear? Assume that the sound velocity in air is 1090 ft/s. Do I need to convert ft/s to m/s?
November 24, 2014

Chemistry Physics
What frequency is heard by an observer who hears the 450 Hz siren on a police car traveling at 35 m/s away from her? Assume that the velocity of sound in air is 345 m/s. Is this the correct? 450*345/(345+35) =408Hz
November 24, 2014

math physics
What frequency is heard by an observer who hears the 450 Hz siren on a police car traveling at 35 m/s away from her? Assume that the velocity of sound in air is 345 m/s. Is this the correct? 450*345/(345+35) =408Hz
November 24, 2014

Math Physics
would it be (3)(10^8/10^14)
November 24, 2014

Math Physics
What is the wavelength in metres of an electromagnetic wave with a frequency of 10^14/s?
November 24, 2014

Chemistry Physics
would this be the setup? 3*10^8/10^14
November 24, 2014

Chemistry Physics
What is the wavelength in metres of an electromagnetic wave with a frequency of 10^14/s?
November 24, 2014

Chemistry Physics
What is the wavelength of an electromagnetic wave with frequency 50.0 MHz? Am I starting this problem like this? 3.00*10^8/50*10^6 =6*10^12
November 24, 2014

Math Physics
thank you
November 24, 2014

Math Physics
What is the wavelength of an electromagnetic wave with frequency 50.0 MHz? Am I starting this problem like this? 3.00*10^8/50*10^6 =6*10^12
November 24, 2014

Physics
A plane designed for vertical takeoff has a mass of 6.4 ✕ 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 8.4 m/s2 through a distance of 30.0 m after starting from rest.
November 20, 2014

Physics
A skier of mass 67.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 59 m up a 32° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
November 20, 2014

math
i have 50 coins in quarters and nickels. if the total value is $5.90, how many of each coin do i have ?
November 18, 2014

Chemistry Physics
yes I noticed it, but its still the right setup. thanks
November 17, 2014

Chemistry Physics
=6072btu thank you for clearing this up, really appreciate all the help.
November 17, 2014

Chemistry Physics
thanks 144 BTU/lb is the heat fusion of water and ice and the specific heat for ice is 0.51BTU/lb So would I need to set it up Q1 like this? 0.51*33.0*144
November 17, 2014

Chemistry Physics
I got it all wrong, confusing the tables But for Q1 Q1=0.51*33.0*80cal/kg (not sure how to convert to BTU)
November 17, 2014

Chemistry Physics
on q2 I mean (72-32)
November 17, 2014

Chemistry Physics
So,is this the setup to find heat? q1= 33.0 X 3.35X10^5 q2=2.26X10^6*1*(72-42)
November 17, 2014

Chemistry Physics
How many Btu of heat are required to melt 33.0 lb of ice at 32°F and to raise the temperature of the melted ice to 72°F?
November 17, 2014

math
2 bananas for 25 cent how many dose 6 cost
November 13, 2014

Physics Science
How many grams of water at 20°C are necessary to change 800g of water at 90°C to 50°C?
November 5, 2014

Physics
A 250 g piece of tin at 99°C is dropped in 100 g of water at 10°C. If the final temperature of the mixture is 20°C, what is the specific heat of the tin?
November 5, 2014

Physics - Method Of Mixtures
Mary mixes 5.00 lb of water at 200°F with 7.00 lb of water at 65.0°F. Find the final temperature of the mixture. -Specific Heat of water is 1.00 BTU/lbs°F
November 5, 2014

Physics Science
Mary mixes 5.00 lb of water at 200°F with 7.00 lb of water at 65.0°F. Find the final temperature of the mixture. -Specific Heat of water is 1.00 BTU/lbs°F
November 5, 2014

Physics Math
A flat-bottom river barge is 30.0 ft wide, 85.0 ft long, and 15.0 ft deep. (a) How many ft3 of water will it displace while the top stays 3.00 ft above the water? (b) What load in tons will the barge contain under these conditions if the empty barge weighs 160 tons in dry dock?
October 30, 2014

Math Physics
Find the water pressure at ground level to supply water to the third floor of a building 8.00 m high with a pressure of 325 kPa at the third level So the given is h=8.00 Ptop=325kPa Density water = 1000 Would I need to set it up like 325+1000*9.81*8.00
October 28, 2014

Fluid Mechanics
Find the water pressure at ground level to supply water to the third floor of a building 8.00 m high with a pressure of 325 kPa at the third level So the given is h=8.00 Ptop=325kPa Density water = 1000 Would I need to set it up like 325+1000*9.81*8.00
October 28, 2014

Fluid Mechanics
What must the water pressure be to supply the second floor (18.0 ft/up) with a pressure of 50.0 lb/in² at that level?
October 27, 2014

Fluid Mechanics
Thanks
October 27, 2014

Fluid Mechanics
(a) Find the total force on the bottom of a cylindrical gasoline storage tank 15.0 m high with radius 23.0 m. (b) Find the total force on the side of the tank.
October 27, 2014

Physics Science
(a) Find the total force on the bottom of a cylindrical gasoline storage tank 15.0 m high with radius 23.0 m. (b) Find the total force on the side of the tank.
October 27, 2014

Calculus 1
Given f(x)= 3e^(1-x^2)*ln(x), find the equation of the tangent line at x = 1.
October 26, 2014

Calculus 1
A right triangle has a fixed base of length 6 meters and a height that is increasing at a rate of 2 meters/second. At what rate is the length of the hypotenuse increasing when the height is 8 meters?
October 26, 2014

math
How long will it take a car 3m long travelling at 100km/h to overtake a truck 10m long travelling at 50km/h, if the car is 10m behind the truck
October 15, 2014

College Chemistry lab
did you manage to solve this?
October 13, 2014

Math @Reiny
Did I do #2 right? 2.) (1-2i)/2i (1-2i)/2i = (1-2)/i x i/i = (1i-2i)/i^2 = (1i+2) =2+1i
October 8, 2014

Math
1.) If a = 2 and the vertex of a parabola is (3, -4), will there be a minimum or maximum value for the parabola? What is the value? 2.) If a = 2 and the vertex of a parabola is (3, -4), what is its axis of symmetry?
October 7, 2014

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