Questions Asked on
January 28, 2015

Science
1) Which of the following is a chemical change? (1 point) Boiling of water Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen*** 2) What is the mass of water that results from combining 2.0g of hydrogen with
asked by Skylar 
Math.
1. Find the area of the given circle. Round to the nearest tenth. *theres a picture of a circle and the radius is 3.5* A. 22.0 cm *squared* B.38.5 cm *squared* C. 11.0 cm *squared* D. 42.8 cm *squared* 2.Find the circumference of the given circle. Round to
asked by Anonymous 
Science
Which kind of pollution is illustrated by a pipe gushing polluted water into a river? A. Point source B. Nonpoint source C. Carbon source. D. Resource source
asked by Ariel 
math
A cube of wood measures 5 centimeters on a side and weighs 19 grams. What is the density of the cube of wood? Will the cube of wood float in water?
asked by Evangeline 
Math
Express the function in the form f o g. (Use nonidentity functions for f and g.) G(x)= cube root of (x/(9+x)) {f(x),g(x)}=?
asked by TayB 
Physics
An airplane cruises at 880km/h relative to the air. It is flying from Denver, Colorado due west to Reno, Neveda, a distance of 1200km and will then return. There is a steady 90km/h wind blowing to the east. What is the difference in flight time between the
asked by Skyler 
Math
Monica paid sales tax of $1.50 when she bought a new bike helmet. If the sales tax was 5% how much did the store charge for the helmet before tax?
asked by Makenzey 
science
If a kestrel eats a mouse that eats grass, the kestrel is a
asked by Vicki 
Math
Lela and pepe are playing a video game. The game scores are a ratio of 1:5. Lela completes a quest and earns 48 points. Their score ratio is now 5:9. What is pepe's score?
asked by Roni 
math
A jug of milk holds 4 quarts. How many liters of milf does the jug hold. Round to the nearest hundredth of a liter. 1L= 1.06 qt A) 0.27 L B) 3.77 L C) 4.24 L D)5.06 L not sure on this one Garrett is 64 in tall. How many centimeters tall is he? Round your
asked by Abby 
English
Which statement best describes Haiku poetry? H Haiku includes two or more stanzas of free verse. Haiku includes two or more couplets. Haiku includes both internal and end of the line rhymes. Haiku includes a triplet with a theme from nature. ***
asked by jeje 
English
What is a key characteristic of a refrain in poetry? imagery alliteration repetition rhyme***
asked by jeje 
chemistry
Calculate the pressures, P, in atmospheres at which the mean free path, l, of a hydrogen molecule will be 1.50 μm, 1.50 mm, and 1.50 m at 20.0 °C. The diameter of a H2 molecule is 270 pm. Which formula would I use?
asked by Anonymous 
Science
I would really appreciate it if someone checked my answers and told me if they were right. Thx. ~Ashley 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. A: The speeds of the objects. *B:
asked by Xx_Ashley_xX 
science
an animal that basks on a warm rack during the morning hours but retreats to the sade of the rocks during the middle day is most likely a(n) A)ectotherm B) endotherm C)vertebrate D) chordate
asked by KK 
Math
Express the function in the form f compose g. (Use nonidentity functions for f and g.) u(t) = cot t/(9+cot t) {f(t), g(t)}=?
asked by TayB 
English
Please some one check to see if I got these right. Thank you:) 1.Which personal pronoun correctly completes the sentence? The pitcher for our team will be either __________ or Jake. him his he** 2.Which personal pronoun correctly completes the sentence?
asked by Anonymous 
Langarts "Yearnings"
"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
asked by hello 
Science
How do lawmaker make good environmental decisions? A. By relying on the shortterm benefits of an environmental issue. B. By weighing down the costs and benefits of an environmental issue C. By relying only on the economical impact of an environmental
asked by Ariel 
Geometry midpoint formula
A circle on the Coordinate plane has a diameter with endpoints at (6,8) and (15,8). What are the coordinates of the center of the circle? What is the radius of the circle? Identify the coordinates of another point on the circle. Explain how you found your
asked by Marianna 
physics
Assuming that the human body has a 1.2cmthick layer of skin tissue and a surface area of 1.5m2 , estimate the rate at which heat is conducted from inside the body to the surface if the skin temperature is 34 ∘C. (Assume a normal body temperature of 37
asked by unknown 
english
We live in a microbial world, and there are many opportunities for food to become contaminated as it is produced and prepared. Many foodborne microbes are present in healthy animals (usually in their intestines) raised for food. Meat and poultry carcasses
asked by stacyy09 
georgia state history
The map of Mississippian Indian settlement is most likely displaying which cultural phenomena prior to European contact?
asked by jam 
algebra
The mean on a Advanced Algebra test was 78 with a standard deviation of 8. If the test scores are normal distributed, find the interval about the mean that contains 99.7% of the scores. Use the empirical rule.
asked by Katie 
physics
A typical multivitamin tablet can contain 2.00mg of vitamin B2 (riboflavin), and the RDA is 0.0030 g/day. How many such tablets should a person take each day to get the proper amount of this vitamin, assuming that he gets none from any other sources?
asked by danny 
Social Studies
which of the following best reflects the combination of tradition and modernity in the region? A.a female doctor wearing an hijab B.a male banker driving a female relative C.two women praying together in their home D.a group of men praying together at a
asked by Delilah 
chemistry
A solution of HClO is mixed and found to have a pH of 4.53. Find what the initial concentration of HClO was for this solution. Ka = 3.00 × 10−8 for HClO. Answer in units of mol/L please help this is due in 1 hour
asked by Anonymous 
Early childhood
Which statement best illustrates the nature of a Bildungsroman? A.The hero in this story never seem to understand his own faults B.In Caldwell novel her protagonist, Lucille, seek the approval of seriously slimy characters C.The hero in this story stands
asked by smile face 
maths
A survey o 85 students asked them about the subjects they liked to study 35 students liked maths,37liked history,26 liked physics,20 liked maths and history,14 liked maths and physics,2 liked all the subjects. a) how many of these students like maths and
asked by deepthi 
Math
Fred, Burt, Conrad, Otto, and Hugh run a race. All the runners can be taken to have the same level of ability, so it may be assumed that all of the possible orderings of the five runners are equally likely. Express your answers to the questions to two
asked by help pls 
Math
A $1,600.00 principle earns 7% interest, compounded semiannually twice per year. After 33 years, what is the balance in the account. My answer is $112,992.00
asked by Steve 
Algebra 1
does the rule y=3x^5 represent an exponential function
asked by Steve 
LA
Hi, Ms. Sue . Can you please look over this? Which sentence contains a predicate noun? A)The walk through the tunnel was eerie. B)I bought Mom a cookbook for her birthday. C)My dog is master of the household. D)The ground is very uneven. I choose C?
asked by Anonymous 
physics
The U.S. fivecent coin, the nickel, has a mass of 5.1 g, a volume of 0.719 cm3, and a total surface area of 8.54 cm2. Assuming that a nickel is an ideal radiator, how much radiant energy per second comes from the nickel, if it is at 24∘C?
asked by unknown 
Chemistry
A 76.00pound flask of mercury costs $132.00. The density of mercury is 13.534 g/cm3. a) Find the price of one cubic inch of mercury by calculating the following intermediate values.
asked by Aaron 
chemistry
Find the initial concentration of the weak acid or base in an aqueous solution of pyridine (C5H5N) with a pH of 8.65. Kb = 1.80×10e9 . Answer in units of mol/L
asked by Anonymous 
Earth Science
10. Which statement best describes the formation of diamonds? A. Diamonds form in kimberlites under very low pressure. B. Diamonds form in talc under very low pressure. C. Diamonds form in talc under very high pressure. D. Diamonds form in
asked by Sarah 
Chemistry
How would you make 100 mL of a carbonic acid buffer at 0.2 M and pH = 9.8 using 0.5 M HCO3 and either 0.1 M NaOH or 0.1 M HCl and water?
asked by Ammu 
chemistry
Find the initial concentration of the weak acid or base in an aqueous solution of pyridine (C5H5N) with a pH of 8.65. Kb = 1.80×10−9 . Answer in units of mol/L
asked by Anonymous 
personal finance
Which type of tax is calculated on a peritem basis?
asked by christian 
math
Bronze is an alloy or mixture of the metals copper and tin. The properties of bronze depends on the percentage of copper in the mix. A chemist decides to study the properties of a given alloy of bronze as the proportion of copper is varied. She starts with
asked by pizza 
Trigonometry
(Triangle ABC is scalene) AC is a straight shore line and B is a boat out at sea. Angle A is 60 degrees and Angle C is 45 degrees. Find the shortest distance from the boat to the shore if A and C are 5km apart...I honestly have no idea where to start with
asked by Abby 
Chemistry
Draw the Lewis structure for each of these molecules. 1. PH3 2. H2S 3. HCl 4. CCl4 5. SiH4
asked by Zach 
mathematics
In a truck of red and green peppers the ratio of red peppers to green peppers is 3:4.if the truck contains 120 green peppers,how many red peppers are there?
asked by Felicia motaung 
Chemistry
Which of the following are excited in ultraviolet photoelectron spectroscopy? A. Valence electrons B. Core electrons C. Xrays
asked by Morgan 
Early childhood
Which statement best illustrates the nature of a Bildungsroman? A.The hero in this story never seem to understand his own faults B.In Caldwell novel her protagonist, Lucille, seek the approval of seriously slimy characters C.The hero in this story stands
asked by smile face 
math
I have 23 hundreds, 47 tens, 5 ones, 8 tenths and 10 hundredths. What number am I. We got the numbers to the left of the decimal  2775 but to the right is it .81 or .18 or .9 as 10 hundredths is the same as 1 tenth so add 8 tenths and 1 tenth together?
asked by Robin 
f
You have just purchased a new warehouse. To finance the purchase, you’ve arranged for a 35year mortgage for 85 percent of the $3,100,000 purchase price. The monthly payment on this loan will be $17,200. What is the APR on this loan? What is the EAR on
asked by ali 
Language Arts
In which sentence is the word utter used correctly? A. The seals utter past crabs and seaweed B. The seals will not utter minnow feed C. The playful seals utter cries of delight D. The stingray and the shark utter the seal I really need help :(
asked by Helper 
Chemistry
How much of each of the following substances would you add to water to prepare 1.90 L of a 0.15 M solution? (a) H2SO4 from "concentrated" (18 M) sulfuric acid mL (b) HCl from "concentrated" (12 M) reagent mL (c) NiCl2 from the salt NiCl2·6 H2O g (d) HNO3
asked by Anonymous 
chemistry
a 1.00*10^1 mL sample of an unknown liquid has a mass of 7.99 g. Calculate the density of the liquid using the proper number significant figures
asked by mike 
Math 6 grade
If you need to find the percent of a number, explain how you can predict whether the part will be less than, greater than, or equal to the number. HELP PLEASE
asked by Kathy 
Earth Science
A heterogeneous mixture is a A. mixture in which its components retain their identity. B. component added to sand that makes it inseparable. C. mixture that always contains water. D. mixture in which its components can't be separated. A?
asked by Sarah 
Math
Fred, Burt, Conrad, Otto, and Hugh run a race. All the runners can be taken to have the same level of ability, so it may be assumed that all of the possible orderings of the five runners are equally likely. Express your answers to the questions to two
asked by Denial 
PHYSICS
a copper cylinder is initially at 20.0 degree Celsius. At what temperature will its volume be 0.150% larger than it is at 20.0 degree Celsius?
asked by JEMAR 
World History
Alexander's plan to unite a great empire didn't last because a. the Persians reconquered their lost lands. b. his generals divided the kingdom after his death. c. his generals divided the kingdom after his death. d. the Romans rose to power and conquered
asked by Eden S. 
chemistry
Nuclear magnetic resonance spectroscopy can be used to study which type of atoms? A. 16O B. 1H C. 2He
asked by Morgan 
algebra
a production crew is assembling a threelevel platform inside a stadium for a performance. the platform has dimensions shown in the diagram and has a total volume of 1250 cubic feet. What is the volume, in terms of x, for each of the three levels of the
asked by Tad 
chemistry
How is a spectrum obtained in NMR spectroscopy? A. Lowfrequency radio waves bombard the atom and cause nuclei in a low spin state to move to a higher spin state. B. Highfrequency ultraviolet rays bombard the atom and cause nuclei in a high spin state to
asked by Morgan 
Chemistry
Which of the following elements can be detected by XPS? A. Hydrogen and lithium B. Boron and helium C. Lithium and boron I think the answer is c.
asked by Morgan 
Algebra
Can you please help me solve r1/r2 = sqrt(M2/M1)for M1. My answer: M1=M2r2^2/r1^2 Is this correct?
asked by Maddy 
Physics
an aircraft lands on a runway with length of 205 m at a speed of 295 km/h what is the minimum constant deceleration required for a safe landing
asked by mike 
Math
Find the product 8 1/3 x 3/5 in simplest form Find the product 5 1/2 x 3 1/3 in simplest form Use distributive property to find the product 4 2/5 x 10
asked by Heather 
Math
The radius, r cm, of a circle at time t seconds is given by r = 2t 2 + 1. Express its area, A cm2 , in terms of t and find the rate of change of the area at the instant when t=2. (Leave your answer in terms of p )
asked by Aaqib zaman 
chemistry 116
The thermite reaction demonstrated in class requires high temperatures to start the reaction. A simple open flame is not enough to start the reaction. Once the reaction is going, then it generates enough heat to keep the reaction going. According to the
asked by danny 
chemistry
In a reaction, 41.8 g of chromium(III) oxide reacts with 14.8 g of aluminum to produce chromium and aluminum oxide. If 28.6 g of chromium is produced, what mass of aluminum oxide is produced? How do I go about solving this problem?
asked by Sarah 
physics
The three charges in the figure are at the vertices of an isosceles triangle. Calculate the work that needs to be expanded, in Joules, to bring the charges together (as shown.) Take q=5.7 μC. The length of base is b=2.30 m. The lengths of sides are s=5.80
asked by Allie 
Earth Science
15. Which statement best describes the composition of magma? A. Magma is an element all its own.B. Magma contains the same elements as snow.C. Magma contains only three elements.D. Magma contains the same elements as Earth's crust.
asked by Sarah 
physics
Assume a goose has a 2.2cmthick layer of feather down (on average) and a body surface area of 0.16m2 .What is the rate of heat loss (conduction only) if the goose, with a body temperature of 41 ∘C, is outside on a winter day when the air temperature is
asked by unknown 
Math Help!!
When the owner of a gas station sets the price of 1 gallon of unleaded gasoline at 2$, he can seek approximately 20,000 gallons per day. When he sets the price of gas at 5$ per gallon, he can sell approximately 14,000 gallons per day. Let G(x) denote the
asked by Tori 
Chemistry
How can the atomic orbital be described in the quantum mechanical wave model of the orbitals? A. A collection of balloons B. A circular ring C. A probability density
asked by Morgan 
Chemistry
1. Write the balanced equation. Use ONLY this equation to reference how the reactions below will shift. Consider whether there is an addition, a removal, or no effect to the reaction. Co(H2O)6^2+ + 4Cl^ CoCl4^2 + 6H2O 2. Write the equilibrium expression
asked by Kate 
Earth Science to Ms.Sue
7. What gives the gem amethyst its purplish color? A. Quartz B. Titanium C. Oxygen D. Iron The answer was not A, got this question wrong.
asked by Sarah 
Algebra
Write a recursive formula for the following sequences: 1) 1,6,11,16... 2) 4, 12, 36, 108... 3) A ball is dropped from an initial height of 10 feet. The maximum heights the ball bounces are as shown (10 ft, 6 ft, 3.6 ft, 2.16 ft) awrite a recursive formula
asked by INeedHelp 
Math
The volume, V cm3 , of a cone height h is (pi)(h^3)/ 12. If h increases at a constant rate of 0.2 cm/sec and the initial height is 2 cm, express V in terms of t and find the rate of change of V at time t.
asked by Aaqib zaman 
History
In what present day states did the Dutch establish new Netherland?
asked by Riley 
chemistry
calculate the volume of concentrated 4M HCl that is needed to create a 1 L solution of 0.1 M HCl.
asked by keira 
Physics
A compact car, with mass 725kg, is moving at 115km/h toward the east.....find the magnitude and direction of it's momentum. Draw an arrow on your sketch showing the momentum
asked by Desmond 
Algebra
32.0=5.5x10^2(1/T)+14.2 Solve for T I am confused about what the first step would be to solving for T. Would I divide 5.5x10^2(1/T) and move it to the left side? Please help.
asked by Maddy 
Physics
A 7.1 kg watermelon is placed at one end of a 5.9 m, 244 N scaﬀolding supported by two cables. One supporting cable is at the opposite end of the scaﬀolding, and the other is 0.54 m from the watermelon. How much tension is in the cable at the end of
asked by James 
Finance
Assume personal income was $28 million last year. Personal outlays were $20 million and personal current taxes were $5 million. a. What was the amount of disposable personal income last year? Disposable personal income (DPI) = personal income – personal
asked by Cathy 
PreCalc
Find all solutions of the equation in the interval [0, 2pi). Show all work. sin(x+(pi/6))sin(x((pi/6))=1/2
asked by Louis 
Algebra
The ratio of the corresponding side lengths of two rectangular tables is 4:5. What is the ratio of the perimeters? What is the ratio of the areas?
asked by Bobby 
physics
What is the mass of 5.00L of pure water?
asked by danny 
math
Mr. Smith’s first period class had an average of 90% on the first test, and his 4th period class had an average of 82%. If there were 30 people in his first class, and 22 in his second, what is the average score of someone in his class?
asked by katie 
Math
You are buying a fence to enclose a garden that has an area of 360 square feet. x + 9 The bottom of garden x side of garden a) What is the width of the area to be enclosed? Answer in units of ft b) How much fencing do you need? Answer in units of ft
asked by Shelby 
Chemistry
Can you please help me solve r1/r2 = sqrt(M2/M1)for M1. My answer: M1=M2r2^2/r1^2 Is this correct?
asked by Maddy 
Physics
Well, I just found out that I failed my physics midterm. I got a 51. Yes I studied but I still don't get the forces and inclined planes. And my parents are going to kill me if they find out. The midterm brought down my grade to a 79!! Any advice? P.S I
asked by Liz 
Math
A variable star is one whose brightness alternately increases and decreases. For one such star, the time between periods of maximum brightness is 5.6 days, the average brightness (or magnitude) of the star is 5.5, and its brightness varies by ±0.30
asked by TayB 
science
most bacteria are A) unicellular eukaryotes B) unicellular prokaryotes C) multicellular eukaryotes D) multicellular prokaryotes
asked by KK 
math
Jessica sold 210 magazine subscriptions during a fundraiser at her school. The subscriptions either cost $23 per year or $45 for two years. Her sales totaled $6,150. How many oneyear and how many twoyear subscriptions did Jessica sell?
asked by Irene Wu 
Calc 2
A 3lb bucket containing 20 lb of water is hanging at the endof a 20ft rope that weights 4 oz / ft. The other end of the ropeis aattached to a puley. How mauch work is required to wind thelenght of the rope onto the pulley, assuming that the rope
asked by Laua 
Math
Find the exact value: cos(pi/16)cos(3pi/16)sin(pi/16)sin(3pi/16)
asked by Abby 
10th algebra
x2+22x +c find the value of c that makes the trinomial a perfect square
asked by joe 
Finance
The Health Corp issued an 12%, 15 yr bond 5 yrs ago. At the time of issue the bond's par value was $1,000. Comparable bonds are yielding 10% today. What must Health Corp's bond sell for in today's market to yield 20% (YTM) to the buyer? Assume bond pays
asked by Heather 
Earth Science
What element has 81 protons in the nuclei of its atoms? A. Thallium B. Uranium C. Platinum D. Lead A?
asked by To Ms.Sue 
algebra
Suppose your parents deposited $1,500 in an account saying 3.5% interest compounded annually (once a year) when you were born. I have to find the account balance after 18 years , please help
asked by timberly 
Chemistry
32.0=5.5x10^2(1/T)+14.2 Solve for T I am confused about what the first step would be to solving for T. Would I divide 5.5x10^2(1/T) and move it to the left side? Please help.
asked by Maddy 
History
Explain John C. Calhoun's Doctrine of Nullification. Answer: The Doctrine of Nullification states that a state had a right to reject, ignore, or nullify a law they considered unconstitutional. Calhoun supported state's rights
asked by M 
physics
If 0.060kg of ice at 0 ∘C is added to 0.320kg of water at 25∘C in a 0.150kg aluminum calorimeter cup, what is the final temperature of the water?
asked by unknown 
Physics
An archer's bow applies a force to an arrow over a distance of 19cm, while firing it vertically upwards. If the arrow achieves a speed of 8.0m/s and the efficiency of the bow is 75%, determine the average force applied to the arrow by the bow. So far I
asked by Pablo 
project management
Given then that we each have our own risk tendencies (some people love taking risks, while others avoid it like the plague), how can we determine a risk profile for our project, since each of our organizations has its own tendency to deal with risk?
asked by jimmy 
Math
Jose said all of the multiples of 8 are also multiples of 2? Manila said that all the multiples of 8 are also of 4. Who is correct?
asked by Damiano 
Math
Sam painted a wall in his. On Monday, he painted half of the wall. He painted 2/3 of the other half on Tuesday, and finished painting the wall o Wednesday. How much of the wall did Sam paint on Wednesday?
asked by Anonymous 
biology
a category within biology that deals with the physical and chemical functions
asked by dakota 
Math
A hardware store will deliver up to 6 items for a $25 delivery charge. There is a charge of $4 for each additional item to be delivered. Write a piecewise function for the cost of having x items delivered. I understand the answer is 25 for x 6. But how do
asked by Anonymous 
Math
A=2600e^0.08^t % increase each year
asked by Ben 
chemistry
Find the percentage composition of (NH4)3PO4 What i don't understand is if the mass of the element isnt given how would i calculate?
asked by Rose 
Physics
In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots. The horizontal distance between the buildings is 36.0 m, and the heights of the Jackson and Walton buildings
asked by Jade 
math
The Downtown Theater group sold 650 tickets to its latest production. They sold only regular seats and box seats. Regular seats cost $12 each and box seats cost $18 each. Altogether, the theater collected $8,550 in ticket sales. How many regular seats and
asked by Irene Wu 
mathematics
Increase 20 in the ratio 3:2?
asked by Felicia motaung 
math
explain the error Janine tells her friend that ordered pairs have an x coordinate of 0 lie on the x axis. She uses the origin as an example. Describe Janine's error. Use a counterexample to explain why Janine statement is false.
asked by camryn 
chemistry
A weak acid (HA) is found to ionize 20.9% when mixed at a concentration of 0.22 mol/L. What is the value of Ka for this acid?
asked by Anonymous 
English
I am working on writing a paper. We have to use MLA format. I am a little confused on how to site my sources. I wrote the following paragragh: Panama Canal is an international waterway located across the Isthmus Panama. The Canal was built by the United
asked by Ricky 
ScienceChemistry
Can you please help me solve r1/r2 = sqrt(M2/M1)for M1. My answer: M1=M2r2^2/r1^2 Is this correct?
asked by Maddy 
English
I need help finding real life examples of these themes? 1. Guilt can destroy a person, body, and soul. 2. True repentance must come from within. 3. Revenge destroys both the victim and seeker 4. One must have the courage to be true to one's self. 5.It is
asked by Amy 
chemistry
Calculate the mass of CaCO3 in a 100ml solution that contains 70% of CaCO3 and the density is 1.02g/ml at room temperature
asked by Maureen 
Math
Hello! Can you check my answers for these 4 worksheet questions? Thank you in advance (: 1. The following ordered pairs give the scores on two consecutive 15point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7),
asked by Allison 
math
how many pounds are in one kilogram round to nearest tenth
asked by Anonymous 
physics
A swimmer can swim 3 mph in still water. She decides to swim perpendicular to the river current which is 3 mph. If the river is 19.89 miles wide, it will take the swimmer ___ hours to cross the river.
asked by diana 
math
Adrian jogs 3/4 mile each morning. How many days will it take him to jog 3 miles?
asked by Anonymous 
History
How did nation's sections differences in economies lead to sectionalism? Answer : Each seciton has different economics because each place has different climates so they'll benefit on different things. South relies on slaves. Northeast relies on
asked by M 
Physics
A spring with an unstrained length of 0.075 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 103 kg and
asked by Bob 
math
After Khalil gave Benjamin 3/5 of the rocks in his collection, Benjamin had 70 rocks. If Benjamin had 25 rocks in the beginning, how many rocks did Khalil have in the beginning?
asked by Sonia 
Math
A bamboo plant grew 3 feet and 6 inches in 3 days. If the plant grew the same amount each day. how many inches did plant grow each? 12 x3=36 36+6=42 42*3=126 126 inches
asked by Freda 
Chemistry
Since chlorine has similar electronegativity as nitrogen, why can't chlorine form hydrogen bonds?
asked by John 
math
The scale on a map i 1cm to 4km What does 4cm on the map represent ?
asked by Christy 
math
B . . . . . . . . . . . . . . C A Triangle ABC is right angled at A. The area of triangle is = ½bh. The area of the triangle is 3/2x^2 + 10x + 16cm^2 where x is a positive integer. The area of the triangle ABC can be written in the form 1/2 (x+a)(bx + c)
asked by Jay 
science and technology engineering mathematics
Do you have sites that can help me understand science and technology engineering mathematics?
asked by science and technology engineering mathematics 
chemistry
sodium cyanide nacn, contains how many single, double or triple bond?
asked by saima 
physics
A swimmer can swim 1.7 mph in still water. She decides to swim upsteam against the current which is 0.7 mph. It will take the swimmer ___ hours to travel 8 miles as measured by a person standing on the river bank.
asked by diana 
geometry
The diagonal of a square checkerboard is 2 inches long. Find the length of one side of the checkerboard
asked by rena 
Physics
What mass of water requires 1.89X10^8 joules of energy to heat from 15 degrees Celsius to 75 degree celsius? The specific heat of water is 4190 J/kg degree celsius
asked by CLos 
physics
A particle is traveling in a straight line at a constant speed of 29.9 m/s. Suddenly, a constant force of 14.5 N acts on it, bringing it to a stop in a distance of 58.2 m. (a) What is the direction of the force? (b) Determine the time it takes for the
asked by amad 
math
Prove the identity (sinx+cosx)^2 = 1+sin2x Thank you
asked by Bear 
History
How did Squanto help the colonists in New England
asked by Riley 
Math
Water is poured steadily into an empty container. If the volume of water in the container after 5 seconds is 30 cm3 , find a) The rate of change of volume b) The volume of water after 12 seconds
asked by Aaqib zaman 
Math
The radius r (cm) of a circle at time t seconds is given by r = 9t  t^3 . At each of the following instants, find the rate of change of the radius (w.r.t.'t') and state whether the radius is increasing or decreasing at these instants. a) t =1 b) t =2 c) t
asked by Aaqib zaman 
math
What is the cost of tiling a rectangular plot of land 500 m long and 200 m wide at the rate of rs 8 per hundred Sq m?
asked by Anonymous 
Hydrology
I have no idea how to calculate this, I just need some direction please (like an equation)? Consider a drainage basin 187 km2. How much water is produced (m3) if 2.5 inches of rain falls on the basin? How many people could be supported on the water
asked by Shelly 
Math
In triangle ABC, the degree measure of angle A is 20 degree greater than the degree measure of angle B. Angle C is a right angle. What is the measure of angle B? Is it 70 degrees. 9020=70
asked by Matthew 
History
Which part of North America did LaSalle claim for France in1684
asked by Riley 
math
An open box is to be made from a flat square piece of material 20 inches in length and width by cutting equal squares of length x from the corners and folding up the sides. (a) Write the volume V of the box as a function of x. Leave it as a product of
asked by jp 
History
What was American's mistaken view of the Native Americans, and how did that relate to American's acceptance of Jackson's relocation of Native American tribes to reservations west of the Mississippi River? Answer :Andrew Jackson believed they had a right to
asked by M 
physics
A net force of (2.5 N)i hat − (4.7 N)j hat acts on a 3.2 kg object. Find the acceleration a with arrow.
asked by amad 
history
Identify at least two actions of the leader yongle that benefited or protected the people. Please help me or give me a website that will help me I am in a rush I only have until 7:00
asked by lulu 
physics
a spring balance is tied to a massless inextenxible string a small object of mass 60kg is attached to the hook of the spring balance. this system is now whirled about a vertical axis so that object performs ucm with centripetal
asked by abhijit 
Math
A rectangle has sides of length x cm and 2x  4cm and the length x cm at time t seconds is given by x = 2 + 3t, (t>=0) . Show that the area, A cm^2 , the rectangle, in terms of t is A =12t + 18t^2 . Hence find the rate of change of the area at the instant
asked by Aaqib zaman 
Math
The radius, r cm , of a spherical balloon at a time t seconds is given by r = 3 + 2 / (1+t) What is the initial radius? Find the rate of change of r (w.r.t.t) when t=3
asked by Aaqib zaman 
Chemistry
What is the formula of reactants for Dibromobis(Triphenylphosphine Oxide) Manganese(II)?
asked by Brini 
Math
What decimal represents the probability that the spinner will stop on an orange section?
asked by Chandra 
anthropology
Gender Socialization As humans, we learn our culture as well as how to be who we are by way of Enculturation (study term). In your team’s view, how will the members of your created culture learn their culture; what is the process of enculturation
asked by jimmy 
Math
What is 4+ 1000000.
asked by Sam 
math
1. How many milligrams (mg) are equal to 1000 micrograms (mcg)? 2. How many pounds (lb) are in one kilogram (kg)? 3. How many milliliters (mL) are in 1/2 of a household measuring cup? 4. Which of the following is an example of a correct conversion factor?
asked by Anonymous 
Biology
Given 3x10^6 cell/mL in 3mL. Perform dilution calculation so that you can have 1x10^5 cell/200ul. Please help me with this question. Much appreciate.
asked by Venice 
chem
The value for ΔH° for the reaction below is 72 kJ. How many kJ of heat are released when 1.0 mol of HBr is formed in this reaction? H2(g) + Br2(l) = 2HBr(g)
asked by danny 
chemistry
Core electrons shield what from the pull of the nucleus? A. Valence electrons B. Neutrons C. Protons I think the answer is a
asked by Morgan 
math, algebra
If Will gives Molly $9 dollars he will have the same amount of money as her. If Molly give Will $9, the ratio of money she has to the money will has will be 1:2. How much money does will have in the beginning? Can you give me an explanation of each step,
asked by R 
government
what exactly do we have to do U.S. Constitution, Article I, Section 7, clause 2: Every Bill which shall have passed the House of Representatives and the Senate Evidence of action in the document
asked by anonymous 
Math
The length, l mm of an elastic string at time t seconds is given by l=t^3 / 3  4t +10 Find the instants (that is, the value of t ) when a) The length is increasing at a rate of 5 mm/Sec b) The length is decreasing at a rate of 4 mm/Sec
asked by Aaqib zaman 
Math
The volume, V cm3 , of a cube at time t seconds is given by V=(4 + 1/3t)^3 find the rate at which its volume is increasing at the instant when t = 2.
asked by Aaqib zaman 
Math
The area, A cm3 , of a circle increases at a constant rate of 2 cm2 ´ s 1 . If the initial area of A is 1 cm2 , show that the radius of the circle at time t is given by r=sqrt( 2t+1/ pi) sqrt on both denominator and numerator
asked by Aaqib zaman 
mathalgebra
How do you find the GCF (greatest common factor) of m^8n^4 and 3m^6n?
asked by G.G 
English
An agreement could be when you go to a furniture store like Ashley’s, and they have many sales going on, for example no interest until March 2017 but, payments have to be made in time, and furniture has to be paid before March 2017. If a person finds
asked by antonio 
help math algebra
How do you find the GCF (greatest common factor) of m^8n^4 and 3m^6n?
asked by G.G 
Question to Ms.Sue
Why are all of my questions deleted,someone else could have helped me with them??????
asked by To Ms.Sue 
Math
Find f o g o h f(x)= sqrt(x5), g(x)=x^2, h(x)=x^3+6
asked by TayB 
math
A circle has an area of 154cm2 what is the diameter of the circle
asked by saleh 
Biology
I'm trying to find out how regular cells are similar to cancer cells? I have read the chapter 2 times already and the only thing I can come up with is they both divide to make new cells.
asked by Mike 
chemistry
Which of the following pairs of compounds has the same molecular shapes? a) AlCl3 and BF3 b) AlCl3 and PCl3 c) BF3 and NF3 d) CO2 and SO2
asked by saima 
Algebra 1
Is the following written in scientific notation? 4.8 X 100^7 My answer is no
asked by Steve 
physics
A 4.3kg object moves across a floor with a velocity of + 8.2 m/s and slides to rest in 5.8 s. The net force producing this acceleration is:
asked by robbi 
grammar
Hello, and good afternoon. My question deals with subject verb agreements. I understand time periods and amounts are singular verbs. Here are my samples: 'Three weeks is a lot of time to do a project,' and 'One half of the children like cupcakes.' I know
asked by Angelica 
math
AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB =50°. Find the length BC, angle ABC, angle CAD , area of triangle ACD.
asked by kudu 
statistics
my question is: So if the chance is 1 in 17,259,390 of winning, what is the expected value of the win? How would I do this problem. Hope you can help. Thank you
asked by Mary Ann 
History
What were the differences between primary and secondary resources in 1684?
asked by Riley 
Partly science, partly curiosity
Does iodized salt mold?
asked by Katt 
mathematics
Decrease 32 in the ratio 3:4?
asked by Felicia motaung 
Calculus
Find ¡Ò[dx/(x2)(x+3)(x4)] this is really confusing and I need help with it.
asked by Francis 
Math. Just checking
Just making sure because im doing h.w over scientific notations and I know how to do them.. I'm just checking if I'm right.. in scientific notations the number has to be between 1 and 10 right?
asked by Anonymous 
History
How did Jackson's war on the Second Bank of the US end up causing economic depression? Answer : He claimed the National Bank was unconstitutional even though the Court ruled it as constitutional. He took federal funds out of the bank and ordered all
asked by M 
English please help
Is this antithesis or just parallelism? " more preschool age children (about 80 a year) are killed by guns each year than police officers are killed by guns (about 50)"
asked by Anonymous 
Genetics
Why are emerging f2 progeny frome crosses one, two, and three should be counted and phenotyped over a period of seven days? I have... for the first say of emergence, cultures produce more females than males. On successive days, the proportion of males
asked by Mel 
Math 201
The length of a rectangle is 5 cm more than its width. What are the possible dimensions of the rectangle if the area must be at least 84 cm^2? (2 marks)
asked by Alex 
History
Life of Andrew jackson
asked by M 
Math
In the equation c=9h, identify which variable is the independent variable and which is the dependent variable.
asked by Amy 
English
What device is this? "... The Armatix smart gun would not trigger the law"?
asked by Anonymous 
math
A roll of ribbon contains 92 inches of ribbon. If you need strips of ribbon 4/5 inches long, how many strips could you cut from this roll?
asked by Rene 
South University
Find the equation of the line, with the given properties, in slopeintercept form. Slope=−4, through (−7,7) The equation of the line is .
asked by Valarie 
Math
Find the equation of the line, with the given properties, in slopeintercept form. Slope=−4, through (−7,7) The equation of the line is .
asked by Valarie 
Math, trignometry,Algebra
The curve y=sin(x)+pi/2 will experience which transformation from the function y=sin(x) 1)A shift pi/2units right 2)none of the above 3)A shift pi/2 united down 4)A shift pi/2 units up 5)A shift pi/2 units left
asked by jazzy 
American Government
The GOP broke new ground with the selection of which of the following as the chair of the republican national committee?
asked by denise 
math
For every cup of seltzer you use, how much orange juice do you use?
asked by ciara 
physics
What would be the charge on five alpha particles?(An alpha particle is helium nucleus) I started with 2 from the helium multiply by 5 and got 10. I don't know what to do next. Please help???
asked by cassie 
math
9 feet equal how many inches
asked by Anonymous 
math
limit of x approaches 3. (2x^2 + 4x + 1)
asked by jay 
chemistry
which of the following have a covalent bond? AlCl3, NH3, H3O, H2O
asked by saima 
Calculus
1) An equation of the line contains points (7/9, 7) and (7/9) is 2) Find the slope of the line tangent to the curve y=x^2 at the point (0.6, 0.36) and find the corresponding equation of the tangent line
asked by Seth 
physics
A projectile is fired at 33.1° above the horizontal. Any effects due to air resistance are negligible. At the highest point in its trajectory, its speed is 15.5 m/s. Calculate the horizontal component of the initial velocity.
asked by confused 
prealgebra
3x + 4=19 x=5 32=242f f=16 Please check.Thank you.
asked by marybeth 
Calculus
Evaluate lim x>0 (Sin^3 3x  3x^3/x^3 x^4) I got zero (0) to be my answer by imputing 0 in place of x but am not so sure if the answer should be 0, am thinking it should be like 1/0 or something like that.
asked by Francis 
math
If Will gives Molly $9, he will have the same amount of money as her. If Molly gives Will $9, the ratio of the money she has to the money Will has will be 1 : 2. How much money does Will have in the beginning?
asked by Lenny 
algebra
If Will gives Molly $9, he will have the same amount of money as her. If Molly gives Will $9, the ratio of the money she has to the money Will has will be 1 : 2. How much money does Will have in the beginning?
asked by Sonia 
Math
Five sixth plus one third
asked by Wiil 
Managemnet
How to prepare an EFAS table for United Technologies.
asked by Luis 
math
32 is < or = to 24  2f 5+c/9 is > or = to 31
asked by pooh 
mixed number
how to convert 65/63 into a mixed number
asked by Tamiko 
prealgebra
3m4=14 m=6 11=2y15 y=13 Please check Thank you.
asked by marybeth 
Math
The product of 0.15 an an unknown factor is 1.38. What is the unknown factor?
asked by Amy 
Math 201
What is the solution for 2x^27x > always greater than 3 ? (2 marks) (Show your work)
asked by Alex 
Math
The amount of water,V cm3 , in a leaking tank at time t seconds is given by V = (15t)^3 for 0
asked by Aaqib zaman 
math
27=2y+15
asked by john 
maths
Find the value of 5v  7 given that 7  1= 6
asked by justus 
math
You are paid $40 an hour to wash windows. If you have worked for 4 4/5 hour, how much money have you earned?
asked by Rene 
Math
XY=5 XY=11
asked by Student 
Math
What is a^2 if a equals 5
asked by Kim 
Physics
As mentioned, after the hovering period at 100 m , the vehicle made a vertical powered descent to h = 30 m, ending with a downward (!) velocity of 2 m/s at this altitude. Assume that the engine provided a constant (!) thrusttoweight ratio during this
asked by Wouter 
Algebra
let f(x)=2x+4 and g(x)=6x7 find f(x)g(x) Can someone walk me through this problem? I still haven't gotten the hang of it.
asked by Jasmine 
MATH
Two Trains are leaving Kansas City at noon. One is traveling northeast at 38MPH. The other is heading west at 46KPH. At what time in Los Angeles will the trains be 214 miles apart?
asked by G 
childcare
A very young child takes his socks off. The caregiver puts it back on. This process is repeated over and over. The child is engaging in __________ play.
asked by lyn 
math
11>2y15
asked by dessie 
chemistry
Give the shapes of CH3, O3, SnCl3, BrF3, I3
asked by saima 
mathematics
'ls for a distance of to a point B on a bearing of 1a boat leaves a dock at point A and trave35 degrees. the boat then changes course and travels for a distance of 8km to a point C on a bearing 060 degrees.'.
asked by alexia 
Algebra I
Operations with Integers 6/25 [ 5/9] 6 * 5 ______ 5*5*9 Now I cancel the five on top and one of the five on the bottom. = 6/45 I don't know if I did the operation correct? Thank You for your help.
asked by Mia 
math
Franklin Furniture Company sells chairs for $110 each and tables for $322 each. Last month the company sold 65 items for a total of $12,450. How many chairs and how many tables did they sell?
asked by Irene Wu 
English
1. I wish I were good at ja dance. 2. I wish I were good at ja dances.  Which on is grammatical?
asked by rfvv 
History
How did Andrew Jackson's humble origins endear him to the average American
asked by M 
Earth Science
Please check down below.
asked by To Ms.Sue 
math
5+c/9=31 9n/5=19
asked by caleb 
math
19 >  n/5 + 9 3x + 4 < 19
asked by pooh