Friday
December 19, 2014

Posts by anonymous


Total # Posts: 75,743

Physic
A ceiling fan is rotating at 0.50 rev/s. When turned off, it slows uniformly to a stop in 11 s. (a) How many revolutions does it make in this time? (b) Using the result from part (a), find the number of revolutions the fan must make for its speed to decrease from 0.50 rev/s to...
November 1, 2014

physics
The car stationary in front of a red traffic light. As the light turns green , a truck goes past at a constant velocity of 1.5 m/s. At the same moment , the car begins to accelerate at 1.25 m/s 2 . When it reaches 2.5 m/s the car continues at this velocity . When does the car ...
October 31, 2014

Math
A “gazing ball” is a spherical garden ornament with a mirrored surface that reflects its surroundings. The surface area of the ball is approximately 314 square inches. What is its volume to the nearest cubic inch?
October 31, 2014

physics
25 s / 0.38 km
October 31, 2014

physics
232
October 31, 2014

physics
The drawing shows two transverse waves traveling on two strings. The linear density of each string is 0.0483 kg/m, and the tension is provided by a 15.0-N block that is hanging from the string. Determine the speed of the wave in part (a) and part (b) of the drawing.
October 31, 2014

Pre-Calc/Trig...
oh okai thanks!!!
October 31, 2014

Pre-Calc/Trig...
i know how to divide polynomials using long division and also the synthetic way. But, I just don't understand what the question is trying to ask??
October 31, 2014

Pre-Calc/Trig...
Help me please Is the given linear expression a factor of the polynomial? Show work. f(x)=2x^3+x^2-5x+2; x+2
October 31, 2014

chemistry
A 813. mL sample of argon gas at 452. K is cooled at constant pressure until the volume becomes 356. mL. What is the new gas temperature in Kelvin?
October 31, 2014

French
I thought it would be that way, but this website made me change it to what I have: french.about . com/od/mistakes/a/ilnyapasdupain.htm
October 31, 2014

French
Please check these sentences for grammar. 1. Ils aiment (or aiment bien) aller à l’école. 2. Tu n'adores pas lire de les romans. 3. Ils n'aiment pas manger de les chocolats.
October 31, 2014

Physics
700 kg plane is traveling at 90 m/s at altitude of 1500 m what is planes total mechanical energy
October 31, 2014

Physics
An object of mass 2.5 kg has speed of 15 m/s when height is 5m above ground what is speed when 12 m above ground?
October 31, 2014

Physics
A 3m long weightless beam is supported at each end by cables (a scaffold). A painter weighing 900N stands 1m from the left cable. Calculate the tension (force) in each cable. I really don't understand this question.
October 31, 2014

Physics
A 700 kg plane is traveling at 90 m/s at an altitude of 1500 m. What is the total mechanical energy?
October 31, 2014

government
Donna Edwards What are his/her opponents saying about him? Describe at least 2 charges or accusations
October 31, 2014

Chemistry
Calculate the kinetic energy of the photoelectron emitted by a metal (threshold energy is 1.50 x 10^-19J) exposed to light of wavelength 5.00 x 10^-7 m (the energy beyond that required to knock electron goes into electron kinetic energy). A) -3/98 x 10^-19J B) 3.98 x 10^-19J C...
October 31, 2014

Chemistry
What's the Tfinal - Tinitial? i tried (0 - (-11.9)) but I don't think its the right thing.
October 31, 2014

Chemistry
We have of ice at -11.9°C and it is ultimately completely converted to liquid at 9.9°C. For ice, use a specific heat (Cs) of 2.01 J/gK, for liquid water use a specific heat of 4.18 J/gK, and ΔHfusion = 6.01kJ/mole, Molar mass H20 = 18.01g/mol. If 1 mole of ice at...
October 31, 2014

Social Studies
Thank you
October 31, 2014

Algebra 1B
Thank you
October 31, 2014

Algebra 1B
A box shaped like a rectangular prism has a height of 17 in and a volume of 2,720 in³ The length is 4 inches greater than twice the width. What is the width of the box? –10 in 8 in (my answer???) 20 in 40 in *
October 31, 2014

algbra
a paddle boat can move at a speed of 14 km/h in still water. the boat is paddled 16 km downstream in a river in the same time it takes to go 8km upstream. what is the speed of the river?
October 31, 2014

maths
1/(x+2)(x+3)_1/(x_4)(x_5)
October 31, 2014

music
he is installing lights in his 15 feet by 24 feet garden. the lights need to be place 3 feet apart a long the perimeter. how many lights he needs for his garden?
October 31, 2014

Social Studies
when did christianity begin? 33 C.E. ?
October 31, 2014

algebra 2
A 16-inch candle is lit and burns at a constant rate. After 30 minutes, the candle is 12 inches tall. Which linear equation models the relationship between h, the height of the candle in inches, and t, the time in hours that it has burned?
October 31, 2014

FINANCE
12. Bond Quotes Consider the following bond quote: a municipal bond quoted at 101.25. If the municipal bond has a par value of $5,000, what is the price of the bond in dollars?
October 31, 2014

FINANCE
10. Bond prices and interest rate An 8 percent coupon bond with 15 years to maturity is priced to offer a 9 percent yield to maturity. You believe that in one year, the yield to maturity will be 6.5 percent. What is the change in price the bond will experience in dollars? (...
October 31, 2014

FINANCE
8. Suppose that the current one-year rate (one-year spot rate) and expected one-year T-bill rates over the following three years (i.e., years 2, 3, and 4, respectively) are as follows: 1R1 = 5 percent, E(2r1) = 6 percent, E(3r1) = 7.5 percent E(4r1) = 6.85 percent Using the ...
October 31, 2014

FINANCE
4. Liquidity Premium Hypothesis Suppose we observe the following rates: 1R1 = 8 percent, 1R2 = 10 percent, and E(2r1) = 8 percent. If the liquidity premium theory of the term structure of interest rates holds, what is the liquidity premium for year 2, L2?
October 31, 2014

trigonometry
(1-tanx)^2/(1-tan^2 x) = (1-2tanx+tan^2 x)/(1-tan^2 x) = (1+tan^2 x)/(1-tan^2 x) - 2tanx/(1-tan^2 x) = sec^2x/(1-tan^2 x) - tan2x = 1/(cos^2x-sin^2x) - tan2x = 1/cos2x - sin2x/cos2x = (1-sin2x)/cos2x steve can i ask u what happen to the 1-tan^2x in the expression sec^2x/(1-tan...
October 31, 2014

Algebra
Factor 6x^3 + 12x^2 + 4x + 8 2(3x^2 + 2)(x + 2)
October 31, 2014

math
How can u write a unit rate if a least one term is a fraction? How is this different from writing a unit rate where both terms are whole numbers?
October 30, 2014

Math
How do I enter that into my calculator? 6/1.609*1760? I keep getting 2.118 but the answer is 1282?
October 30, 2014

Math
6 km to miles and the nearest yard? 6km*1mi/1.609km=3mi But how do I get to the yards from converting because my data booklet doesn't tell me 1yd=?km.
October 30, 2014

Physics
Thank you so much
October 30, 2014

Physics
A 2110 kg car traveling at 10.7 m/s collides with a 2780 kg car that is initially at rest at the stoplight. The cars stick together and move 2.00 m before friction causes them to stop. Determine the coefficient of kinetic friction betwen the cars and the road, assuming that ...
October 30, 2014

math
44
October 30, 2014

algebra
2/8
October 30, 2014

physics
A 71.5 kg ice skater moving to the right with a velocity of 2.92 m/s throws a 0.16 kg snowball to the right with a velocity of 20.1 m/s relative to the ground.
October 30, 2014

physics
zf
October 30, 2014

Math
if 150 vehicles passed luann how many more minivans than cars would you expect to pass her assume the rate continues
October 30, 2014

Geometry
Thank you
October 30, 2014

Geometry
Which pair of slopes could represent perpendicular lines? 1/7, 7 * 1/2, 2/4 –3/4, 4/3 (my answer or not?) 1/3, 1/3
October 30, 2014

math
kaya is making dream catchers. each dream catchers uses 6 feathers. she makes 4 dream catchers with black feather 3 with brown 1 with white and 2 with gray. what fraction of the dream catcher have either black or brown feather
October 30, 2014

English
Though remarkably inconvenient for my garden, the dog's rehab therapy is her digging of holes. Please correct me if I am wrong. digging of holes is a gerund Her ---what----digging of holes
October 30, 2014

Social Studies
Who founded (started) the Christian religion? Answer: Jesus and his Apostles Is Christianity a Monotheistic (one god) or a Polytheistic (many gods) religion? Answer: would it be Polytheistic since they believe in God, Jesus being his son, and the Holy Spirit.
October 30, 2014

physics
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.0 m waterfall. The spy’s speed is 15 m/s and the officials’ speed is ...
October 30, 2014

Science asap!
Which of the following is not a process that forms metallic ore? placer deposits fossil compaction hydrothermal solutions igneous processes 5. Which of the following nonmetallic mineral resources is used both as a building material and as an industrial mineral? sulfur ...
October 30, 2014

Math
Yes
October 30, 2014

English
My dogs' insistent barking woke me up at 4:00 a.m. barking woke me up---- is not a gerund is it?
October 30, 2014

Algebra
How to factor 6x^3 + 12x^2 + 4x + 8? I keep getting (6x^2 + 4)(x + 2).
October 30, 2014

Financial accounting 4e
Tybalt invested $6000 cash in the business in exchange for more common stock during year 2013 ( the December 31,2012 credit balance of retained earning was $168900) Tybalt construction is required to make a $16500 payment on its long-term notes payable during 2014.
October 30, 2014

Physics
The circuit shown below is in a uniform magnetic field that is into the page and is decreasing in magnitude at the rate of 150 tesla/second. What current does the ammeter read?
October 30, 2014

Physics
A set of twins work in the Sears Tower, a very tall office building in Chicago. One works on the top floor and other works in the basement. Considering general relativity, which twin will age more slowly?
October 30, 2014

Physics
An experiment is designed in which a proton and an antiproton collide, producing a particle with mass 9700 MeV. What must be the incident kinetic energies and velocities of the colliding particles?
October 30, 2014

college algebra
One isotope of holmium, 162Ho, has a half life of 22 minutes. The half-life of a second isotope, 164Ho, is 37 minutes. Starting with a sample containing equal amounts, find the ratio of the amounts of 162Ho to 164Ho after one hour. Rounded to three decimal
October 30, 2014

physics
A pelican flying along a horizontal path drops a fish from a height of 3.1 m. The fish travels 8.4 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m/s
October 30, 2014

health
What does the U.S. government use to estimate a person’s body weight status? A. Health related illnesses B. Body mass index C. Scale D. Ruler
October 30, 2014

english 111
The game of lacrosse seems complicated to me. How does the word complicated function in the sentence? predicate adjective predicate nominative objective complement indirect object
October 30, 2014

physics
A crate is given an initial speed of 5.0m/s up the 22.5∘ plane shown in (Figure 1) . Assume μk = 0.12.
October 30, 2014

medical billing and coding 2
A 53 year old male patient was diagnosis with CMV infection, He has had a persistent cough, and microscopy confirmed the presence of pulmonary tuberculosis and CMV are HIV related. Patient was treated with ethombutol, what codes are assigned to this?
October 30, 2014

algebra
y=34+x30
October 30, 2014

English
Does the following sentence have 2 infinitives? Many people go to Europe to travel around historical sites. I am saying "to travel" because of verb following it Saying NO to "to Europe"
October 30, 2014

Math--1 question?
For which set of data is the median 15? 89, 75, 90, 15, 74, 88, 89 23, 35, 77, 81, 64, 15, 44 14, 15, 15, 15, 18, 18, 19, 19, 20 8, 20, 17, 21, 14, 15, 9
October 30, 2014

Algebra
I am helping my granddaughter in algebra and need to know how to get the answer. What is a solution of x² + 6x = –5? x = –6 x = –1 (I say this one) x = 1 * (she thinks it is this one) x = 6
October 30, 2014

MATH ASAP
identify the underlined place in 63.264. Then round the number to that place. thousandths; 63.26 hundredths; 63.26 hundredths; 63.27 thousandths; 63.27 2. The average annual rainfall in Miami, Florida is 61.93 inches. The average annual rainfall in Indianapolis, Indiana is 42....
October 30, 2014

Algebra
How to factor 6x^3 + 12x^2 + 4x + 8? I keep getting (6x^2 + 4)(x + 2).
October 30, 2014

Math question
7. What is the best measure of central tendency for the data? What answer do you get using this measure? red blue green brown red pink orange mode; red median; green mean; red mode; pink
October 30, 2014

Social Studies HELP!
Which statement best describes Albigence's evaluation of Washington's leadership? A. he thinks that Washington has been far too timid and has not thought enough about the overall picture of the war to take strong action needed. B. he is due that if Washington had ...
October 30, 2014

CHEMISTRY
ag2s
October 30, 2014

Math help!
Point E is located at (-2,2) and point F is located at (4,-6). What is the distance between points E and F? A. square root 52 B. square root 28 C. 10 D. square root 20 Is the answer A? Thank you
October 30, 2014

Medical Billing and Coding
This 51 year old make is a tye 1 insulin dependent diabetic admitted for treatment of a grade 111 foot ulcer which involved necrosis of the muscle on the left foot with gangrenous changes resulting from diabetic neuropathy, patheroseclerosis and chronic peripheral vascular ...
October 30, 2014

Medical Billing and Coding
This 35 year old HIV-positive make with progressive lymphadenopathy and unexplained fevers, night sweats, and chills, low osmolar CT scan of the chest, abdomen, pelvis and neck showed extensive lymphadenopathy involving mediastinum and left hilum, paratracheal nodal chains, ...
October 30, 2014

chemistry
A sample of neon gas at 1.20 atm compresses from 0.250 L to 0.125 L. If the temperature is held constant, what is the final pressure?
October 30, 2014

Math help!
Which of the triangles described in the table is a right triangle. Table Triangle Q, Side 1=25 Side 2=10 Side 3=15. Triangle R, Side 1=26 Side 2=20 Side 3=46. Triangle S, Side 1=25 Side 2=20 Side 3=1,025. Triangle T, Side 1=25 Side 2=26 Side 3=650. A. Q B. R C. S D. T Is the ...
October 30, 2014

Math help!
Oops I meant to put D,
October 30, 2014

Math help!
The length of the hypotenuse of a right triangle is 13 m. The length of one leg is 5 m. Find the length of the other leg. A. 14 cm B. 144 cm C. 8 cm D. 12 cm Is the answer C? Thank you
October 30, 2014

Math help!
Thank you for helping me :)
October 30, 2014

Math help!
Find the length of the hypotenuse of a right triangle with legs of 9 cm and 12 cm. A. 8 cm B. 21 cm C. 15 cm D. 225 cm Is the answer C? Thank you
October 30, 2014

Physics
A 2110 kg car traveling at 10.7 m/s collides with a 2780 kg car that is initially at rest at the stoplight. The cars stick together and move 2.00 m before friction causes them to stop. Determine the coefficient of kinetic friction betwen the cars and the road, assuming that ...
October 30, 2014

Physics
A 3.20 kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest. The composite system moves with a speed equal to one-half the original speed of the 3.20 mud ball. What is the mass of the second mud ball? kg
October 30, 2014

English
Sentence We are doing no favors to the young men if we let them believe that a game shall set them free. I am saying the clause "that a game shall set them free." Is a dependent clause am I right?
October 30, 2014

algebra
A no.plus two third of itself; plus one half of itself plus one seventh of itself equals 97.find d no.
October 30, 2014

statistics
The tread life a certain brand of tires is known to be normally distributed with a mean of 60,000 miles and a standard deviation of 5,000 miles. The company wishes to set the warranty so that only 4% of the tires will need to be replaced. What should the warranty mileage be?
October 30, 2014

statistics
A company wishes to make 1 ounce candy bars. According to government regulations, in order to label the candy bars as 1 ounce, at least 95 % of the bars must weigh 1 ounce or more. Our process standard deviation is .08 ounces. What do we need to make the mean weight be so that...
October 30, 2014

statistics
For patients with a certain disease the amount of certain protein in the blood is normally distributed with a mean of 130 and a standard deviation of 5. For patients without the disease the amount of that protein is normally distributed with a mean of 150 and a standard ...
October 30, 2014

Physics
A 0.50 kg hammer is taken on a space mission. What is its weight on a planet where the acceleration due to gravity is 3.8 m/s2? 0.50 kg 1.9 kg 0.50 N 1.9 N
October 30, 2014

Algebra
16x^3 - 12x^2 + 20x - 15 factored = (4x^2 + 5)(4x - 3)?
October 29, 2014

Physics
An ideal spring has a spring constant k = 20 N/m. The spring is suspended vertically. A 0.7-kg body is attached to the unstretched spring and released. It then performs oscillations.
October 29, 2014

Physics
A proton that has a mass m and is moving at 250 m/s in the + direction undergoes a head-on elastic collision with a stationary carbon nucleus of mass 12m. Find the velocities of the proton and the carbon nucleus after the collision. vp = m/s vcarbon = m/s
October 29, 2014

HISTORY
The War of 1812 was caused by A.British influence on Indians to attack American settlers B.British raids on American shipping C. the financial panic of 1819 D. voter reaction to the re-election of Madison E. All of the above I would say b, am I right?
October 29, 2014

Math
What is the equation and the answer to717✖451
October 29, 2014

Physics
A 1400 kg car moving south at 10.0 m/s collides with a 2350 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.36 m/s to the north. Find the velocity of the 2350 kg car before the collision. m/s to the south
October 29, 2014

HISTORY
check my answers? Circle four of the following which occurred during the presidency of James Monroe. A. Louisiana Purchase B. conquest of Florida by Andrew Jackson C. financial panic of 1819 D. the Era of Good Feelings E. Missouri Compromise F. construction of the Monroe ...
October 29, 2014

physics
If 250 joules of work are performed by an engine using 600 joules of energy in 5 seconds, what is the efficiency of the engine?
October 29, 2014

Physics
A 3.5 g dart is fired into a block of wood with a mass of 22.8 g. The wood block is initially at rest on a 1.3 m tall post. After the collision, the wood block and dart land 2.6 m from the base of the post. Find the initial speed of the dart. m/s
October 29, 2014

mateh
of the pizza sold at a pizzeria 1/2 were cheese 1/4 were sausage and 1/6 were pepperoni. what fraction more of the pizza were cheese than sausage and pepperoni.
October 29, 2014

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