Questions Asked on
April 7, 2015

check my answers please
"President Lincoln’s Declaration of Emancipation, January 1, 1863" by Frances E. W. Harper 1 It shall flash through coming ages, 2 It shall light the distant years; 3 And eyes now dim with sorrow 4 Shall be brighter through their tears. 5 It shall flush
asked by Amber 
Math I need help ASAP!
1) Identify the function rule shown in the table. Function Table n  3, 4, 5, 6 y  2, 1, 0, 1 a. y = 2 + n b. y = 5n c. y = 5  n d. not enough information ** 2) What is the values of the function y = 2x  4 for x = 0,1,2 and 3? a. 0, 6, 8, 10 b. 4,
asked by Talea 
social studies
1) How did Muslim Turks influence Turkey's development? 2) What is likely to happen in the political and economic future of Cyprus? 3) How are the viewpoints of Turkey's urban and rural population likely to differ regarding the role of women in society?
asked by Aaliyah 
Trigonometry
a bicycle with 24inch diameter wheels is traveling at 15mi/hr. a) Find the angular speed of the wheels in rad/min. b)How many revolutions per minute do the wheels make?
asked by Dan 
social studies
1) Diversity most closely means (1 point) a. sharing cultural traits and practices with others. ** b. making up a whole of many different parts. c. being a member of a small ethnic group. d. having many similar regions next to one another. 2) How does life
asked by Leala 
Art
Drawing: girl in a southern German folk costume it's the first picture in Google search. How did the designer of the German folk dress use the principles of art? A. The designer repeats colors throughout the apron to create unity. B. The designer uses
asked by Kanani 
MATH PLZ SOMEONE HELP
7. Suppose you earn $10 each hour you babysit. Which function describes the relationship between your total earnings E and the number of hours you babysit, h? (1 point) E(h) = 10h E(h) = h + 10 E(h) = h – 10 h = 10E
asked by HIHELP 
Science(need help)
1) What evidence is there that the human species has been successful so far? Explain. 2) What environmental pressures in the past do you think were most important in shaping the human species as it exists today? 3) What environmental pressures exist now
asked by vivis 
Calculus
A wire 7 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total
asked by Nope 
English
Select correct if sentence does not need any comma's and incorrect if the sentence does need a comma. 1.We were tempted to drink out of that clean cold stream Correct***** incorrect 2.How do motorcycles trail bikes and mopeds differ? Correct
asked by Cassie 
Language arts help
In the following sentence, what word does the participial phrase modify? Everyone in the annex heard her screaming loudly. A. Everyone B. annex C. heard D. her Is the answer C? Thank you on advance
asked by Anonymous 
Chemistry
A coffee cup calorimeter contains 100.0 g of water at 10.0 ◦C. A 72.4 g sample of iron is heated to 100 ◦C and dropped into the calorimeter. Assuming there is no heat lost to the coffee cup, calculate the final temperature of the system. The specific
asked by kika 
Math
A multiplechoice question has five possible answers. What are the odds in favor of guessing the right answer? A.2:3 B.4:1 C.1:4 D.3:2 Is the answer C? Thank you
asked by Kanani 
physics
The figure below shows a clawhammer as it is being used to pull a nail out of a horizontal board. A force of magnitude 130 N is exerted horizontally as shown. (NOTE: Assume that the force the hammer exerts on the nail is parallel to the nail and
asked by Nick 
Chem II
The conversion of glucose into lactic acid drives the phosphorylation of 2 moles of ADP to ATP and has a standard free energy of 135 kJ/mol. C6H12O6 + 2 HPO4 + 2 ADP + 2 H+ > 2CH3CH(OH)COOH + 2 ATP + 2H20 What is the standard free energy for the
asked by Nicole 
Math
Makoto's lacrosse practice last 1 3/4 hours. This week he attended all of the practice on Monday and Wednesday, but he had to leave halfway through practice on Friday. How many hours did Makoto's spend at lacrosse practice this week? 1 3/4 + 1 3/4 +1 3/4.
asked by AC 
English
Which excerpt from the play best supports the answer to the reason Anne spend time with Peter in the third read of the diary of Anne Frank? A."I'm sorry Mother, I'm going to Peters room. I'm not going to let Petronella Van Dann spoil our friendship." B."I
asked by Anonymous 
math
A worker uses 4 gray tiles for every 5 blue tiles that he uses.(a) If he uses 60 gray tiles, how many blue tiles does he use? (b) If he uses 540 tiles altogether, how many gray tiles does he use?
asked by symira 
chemistry
If you start with 146 g of water at 47◦C, how much heat must you add to convert all the liquid into vapor at 100◦C? Assume no heat is lost to the surroundings. Answer in units of kJ.
asked by kika 
Chemistry
At 20 degrees celcius the vapor pressure of toluene is 22 mmhg and that of benzene is 75 mmhg. Assume an ideal solution, equimolar in benzene and toluene. At 20 degrees celcius what is the mole fraction of benzene in the vapor in equilibrium with this
asked by Marissa 
Chemistry
Calculate the molarity (M) of the following solutions: 4.00moles of glucose in 3.00L of glucose solution 5.50g of KOH in 4.00L of KOH solution 5.85g of NaCl in 400.mL of NaCl solution
asked by Chan 
math
In a local school 34 students are enrolled in a math class, 85 are enrolled in an english class, 58 are enrolled in an art class, and 54 are enrolled in a history class. Construct a pie chart with this data. What is the central angle of the slice
asked by heem 
physics
A 13.1g bullet is fired into a block of wood at 261 m/s. The block is attached to a spring that has a spring constant of 205 N/m. The block and bullet continue to move, compressing the spring by 35.0 cm before the whole system momentarily comes to a stop.
asked by heltor 
science.......
1.a ball with a mass 2kg rests on an incline with an angle of 10 degrees. The ball is released to roll down the incline plane neglecting all friction: Determine the following: A.the loss in potential energy after it has rolled 12m. B. The kinetic energy
asked by Buhle 
math
In constructing a graph that compares average water usage per household in different communities, you choose to use cubes of different sizes. If the cubes are drawn so that their volumes are proportional to the volumes of water usage in different
asked by heem 
math
the perimeter of a rectangle is 35.54 inches longer than the perimeter of a square of side 6.75 inches. Find the perimeter of the rectangle to the nearest tenth of an inch.
asked by melissa 
Art
Which task is typical for a fashion designer? A. Designing a storyboard B. Researching new trends C. Organizing an exhibition D. Creating an blueprint Is the answer B? Thank you
asked by Kanani 
math
Juanita Finn deposits $12,000 into an account at Valley Bank that pays 8% interest compounded quarterly. At the end of 5 years, how much will Juanita have in her account? Round to the nearest cent.
asked by ashley 
calculus
Find the area under one arch of curve y=cos(x/4). This lesson is plane areas in rectangular coordinates. I don't know how to solve it. Thanks for your help.
asked by Jhun 
English
Based on your reading of “On Making an Agreeable Marriage” and A Vindication of the Rights of Women, what can you conclude about women’s education at the time these pieces were written? A. Women were mainly taught practical skills useful in running a
asked by Emi 
Physics 1
A rotating cylinder about 5.0 miles in diameter is designed to be used as a space colony. With what tangential velocity must it rotate so that the residents on it will experience the same acceleration as that due to gravity on Earth? Recall that ag=g=9.8
asked by Brittany 
social studies
how was the northern renaissance simaler to the italian renaissance? how was it differ?
asked by #HOMEWORK 
English
In the following sentence, which word is used as a conjunction? Lisa and Mary were home on time, but Kim, Francine, and Penny weren't going to make it. A. On B. But C. Were D. And my answer is b.
asked by Lauren 
physics
Anna applies a force of 19.5 newtons to push a book placed on a table. If the normal force of the book is 51.7 newtons, what is the coefficient of kinetic friction? A) .01 B) .20 C) .38 D) .48
asked by alexis 
Math
the Ruby Snow Company makes custom snowboards. the company's profit can be modelled with the relation y=6x^2+42x60,where x is the number snowboards sold(in thousands) and y is the profit (in hundreds of thousands of dollars) How many snowboards does the
asked by Anonymous 
Algebra
Glen created a mural on a rectangular sheet of paper with a width of √18 feet and a length of √24. A. Find the exact area of the mural, in simplified form. When Glen’s mural was unveiled, the school made a smaller version of the mural to advertise
asked by Emily 
Science
1. What do bone marrow (the soft connective tissue that fills the internal spaces in bone) and the dermis (layer of the skin under the epidermis and over the hypodermis) have in common? (1 point) • They are both sites of new cell formation. • They both
asked by Kiara 
Math
Patterns and colors on seventeenth to nineteenth century kimonos were used to identify the hometown of which of Japanese citizen? A. Farmers B. Nobility C. Warriors D. Lawmakers Is the answer C. Thank you
asked by Kanani 
English
Which word best describes the speaker's attitude toward death in “Ode to a Nightingale”? A. fear B. relief C. horror D. anxiety My choice is D
asked by Emi 
English
Choosing a good reviewer for your writing means finding someone who A. is a close friend and will give you a positive review. B. concentrates on correcting your spelling and grammar errors. C. will concentrate on your ideas and how well you support them.
asked by Lauren 
Social studies
1.What was the most important factor leading to the end of the Cold War? a)The European Economic Community formed b)Democratic revolutions began in Eastern Europe c)The Marshall Plan helped rebuild Western Europe d)a U.S.soviet peace treaty helped repair
asked by #HOMEWORK 
engineering science n3
A train with a mass of 120Mg accelerates uniformly on a horizontal track.the resistance to movement is 5N per KN of the mass of the train. The force in the drawbar of the locomotive is 80KN.calculate: 1.the force required for the constant speed. 2.the
asked by tuis 
PHYSICS
A spring gun, held horizontally 1.70 m above the ground, fires a 0.010 kg marble so that it lands a horizontal distance of 7.60 m away. If the gun is pointed straight up, and the same marble is fired, how high (in meters) will it rise? I tried using
asked by Beckles 
English
Which of the following sentences contains an error in subjectverb agreement? A. Either Dennis or Susan is going to pick you up. B. Each of the 14 groups are going to contribute an item to the auction. C. Kristy, Molly, and Kate attend the same university
asked by Lauren 
Keep Memory Alive by Elie Wiesel
How could the "future of mankind" be sacrificed on "the fiery alter"?
asked by Victoria 
Math
A 12 foothigh pole casts a 9 foot long shadow, at the same time of day, what would be the length of a shadow cast by a 45 footlong tree
asked by Taylor 
grammar
Though no vote ____taken, each delegate and alternate _____there. a.was, was b.was, were c.were, was d.were, were I chose a, because I think that each before delegate makes it singular. But I also think that and between delegate and alternate might mean it
asked by Carrie 
science
these are all very confusing for me 1. Explain why Earth and other planets were not solid when they formed during the beginning of the Precambrian, approximately 4,600 million years ago (MYA). What was this particular time period called, and why is this
asked by kat101 
chemistry
What must be true for a substance to dissolve in water? A. The entropy term must be positive. B. The enthalpy and entropy terms must combine for a favored reaction. C. The free energy change of dissolving must be positive. D. The energy required to break
asked by Cortney 
Chemistry
Calculate ΔG (in kJ) at 298 K for some solid ZnF2, 0.055 M Zn2+ and 0.063 M F(aq). I found Q to be 2.18e4, then i implemented it into the equation deltaG=RT(lnQ). I got 20.89, but the answer is 12.2.
asked by JUNDY 
math
During the summer holidays,your brother earns extra money mowing lawns.He mows 6 lawns an hour and has 21 lawns to mow.How long will it take him?
asked by samuel 
English
During revision, you should scan your paper for _______ words and replace them with concrete words or phrases. A. figurative B. general C. formal D. informal my answer is b.
asked by Lauren 
math
Five friends picked 7 pounds of apples. They will share the apples equally. How much will each get?
asked by john 
Chemistry
An aqueous solution of 0.25 M silver nitrate, AgNO3, and 0.25 M iron(II) nitrate, Fe(NO3)2, are allowed to come to equilibrium in the following chemical reaction: Ag+(aq) + Fe2+(aq) Fe3 + (aq) + Ag(s) If the equilibrium constant, Kc, for the reaction
asked by Cortney 
NEED HELP PHYSICS!!!
An airplane is flying in a horizontal circle at a speed of 117 m/s. The pilot does not want his centrifugal acceleration to exceed 6.8g (that is, to be more than 6.8 times the acceleration of gravity). What is the minimum radius (in meters) of the circular
asked by baz 
Chemistry
Determine the volume, in milliliters, required to prepare each of the following diluted solutions. 40.0mL of a 2.75M KNO3 solution using a 1.00M KNO3 solution 45.0mL of a 2.90M H2SO4 solution using a 6.00M H2SO4 solution 0.700L of a 2.10M NH4Cl solution
asked by Chan 
math
a spinner is divided into 10 sectors. the number 1 through5 are each placed in two different sectors. find the probability of each event. P(less than 3) P (5) p (8)
asked by gayle 
NEED HELP PHYSICS!!!
A person is flying a model airplane with mass 82.2 gram in a horizontal circular path on the end of a string 10.5 m long. The string is horizontal and exerts a force of 3.22 N on the hand of the person holding it. What is the speed (in m/s) of the plane?
asked by baz 
Chemistry
Explain why the solubility of KHTar in 0.100 M NaCl solution differs from that in pure water? Explain why the solubility of KHTar in the mixed KCL  NaCl solution differs from that in the 0.100 M NaCl.
asked by Haley 
Language Arts
Which sentence contains a participle phrase? A. She wanted to spend time writing B. Her job is giving the attic dwellers their food C. Quickly snatching up the coat, she ran to her room? D. To get along well requires cooperation. Is the answer A? Thank you
asked by Kanani 
Math
Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that would be used to graph the function. I did 3 I just need help with 1, 2 and 4.
asked by Talea 
English
Which of the following is a good rule to follow when proofreading an essay? A. Scan the essay twice, once for organization and once for surface errors. B. Ask your best friend to critique your essay. C. Use the computer's spellcheck and grammarcheck
asked by Lauren 
Math
James is training for a marathon. Every week, he increases the distance he runs by 15%. If James is running 8.5 miles this week, how far will he be running 2 weeks from now? I did 30/100=x/8.5 . I thought that if I did 30 (for 2 weeks) instead of 15 (1
asked by Deandrea 
English
Which sentence contains an infinite phrase? A. Anne passed the time by sharing her dreams. B. Anne wanted to live in Paris. C. Her favorite activity was riding a bike. D. Living in hiding, she did with little privacy. Is the answer A?
asked by Anonymous 
Physics
During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between two fence posts. The limb exerts a downward force of 246 N on the wire. The left section of the wire makes an angle of 14.2°
asked by Kristyn 
math
Janice walked around two sides of a square park. The perimeter of the park is 1,200 yards. How many yards did Janice walk? Explain your answer.
asked by Barbara 
chemistry
Describe the following types of corrosion and give a practical example of each 1.pure chemical corrosion 2.pure electrochemical corrosion
asked by aneleeeee 
math
Aubrey has a shelf full of books. • Exactly 1 }3 of the books on the shelf are mysteries. • Aubrey has read 10 of the mysteries on the shelf. • The number of mysteries Aubrey has read is greater than 1 }5 of the number of mysteries on the shelf and
asked by Lakshmi 
chemistry
A piece of metal of mass 18 g at 104 ◦C is placed in a calorimeter containing 47.4 g of water at 22◦C. The final temperature of the mixture is 40.8 ◦C. What is the specific heat capacity of the metal? Assume that there is no energy lost to the
asked by kika 
math
If it says use the method of substitution to solve the system of linear equations 3a=6b 3a=4b How do i find the solution
asked by Rashad 
Science
How much current does a flashlight use if its battery supplies 3.0 Volt and the bulb has a resistance of 4.0 Alpha
asked by Kyle 
Math
A number cube with the numbers 1 through 6 is rolled. Find P ( number is greater than or equal to 3). A.4\6 B.1\6 C.2\6 D.5\6 Is the answer A? Thank you
asked by Kanani 
Physics
The alarm at a fire station rings and a 98.5kg fireman, starting from rest, slides down a pole to the floor below (a distance of 4.00 m). Just before landing, his speed is 1.81 m/s. What is the magnitude of the kinetic frictional force exerted on the
asked by Kristyn 
NEED HELP PHYSICS!!!
Tarzan (m = 78.4 kg) tries to cross a river by swinging from a vine. The vine is 10 m long. Tarzan doesn't know that the vine has a breaking strength of 1045 N. What maximum speed (in m/s) can Tarzan have at the bottom of the swing (as he just clears the
asked by baz 
math
A rectangular piece of construction paper is 11 inches long and 8 inches wide. How could it be cut to make a rectangle that has an area of 32 square inches?
asked by Shay 
English
What does the bride learn in “Woo’d and Married and A’ ”? A. Marrying a man who loves her is enough. B. Having a house of her own is the most important thing in life. C. If she and her husband work hard, they will eventually be rich. My choice is A
asked by Emi 
Please help asap science
1. An electrical circuit consists of a battery with 2 cells,each with an EMF of 12 volts and an internal resistance of of 0.4 ohms,connected in parallel. An ammeter with an internal resistance of 0.15 ohms is connected in series with resistor Ra=2ohms and
asked by Sarah 
math
Janet has 4 }9 gallon of paint. She uses 1 }8 of the paint she has to cover 3 canvases. She uses the same amount of paint to cover each canvas. What amount of paint does Janet use to cover each canvas?
asked by Lakshmi 
physics
a 16.0g bullet is shot into a wooden block at rest with mass 4550g on a frictionless surface. the block moves 1.20m/s after the bullet strikes and becomes lodged in the block. find the speed of the bullet before striking the block.
asked by tommy 
Chemistry
Calculate the average C—C bond strength in cyclopropane (in kJ/mol). Its combustion and the experimental enthalpy of reaction are: C3H6(g) + 4.5O2(g) → 3CO2(g) + 3H2O(g) ΔHºrxn = 1,957.7 kJ/mol Since all reactants and products are in the gaseous
asked by JUNDY 
cheminstry
A sample of neon gas has an initial volume of 2.5L at 300 K. What is the new temperature of the gas(both in K and Celsius degrees) if the pressure remains constant, when the volume is changed to each of the following values: a. 5.00L b. 7.50L c. 1.50L d.
asked by marielis 
Physics
A student is skateboarding down a ramp that is 6.03 m long and inclined at 21.5° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 4.87 m/s. Neglect friction and find the speed at the bottom of the ramp.
asked by Kristyn 
HELPP
The volume of a rectangular prism can be computed using the formula V = lwh. What is the width of a prism that has a volume of 1664 cubic centimeters, a length of 16 centimeters, and a height of 8 centimeters? A. 11 cm B. 13 cm C. 26 cm D. 768 cm
asked by Matt 
Chemistry
C18H32O2 + 2H2  C18H3602; oxidized or reduced?
asked by Maria 
Physics
On a frictionless air hockey table, a puck of mass 5.0 kg moving at 2:0m=s approaches an identical puck that is stationary. After collision, the rst puck moves at 30 degrees above the original line of motion; the second puck moves 60 degrees below. (a)
asked by winged17 
Physics
A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 530 N. As the drawing shows, she is closer to the left cliff than to the right cliff, with the result that the tensions in the left and right sides of
asked by Kristyn 
Physics
A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providing a steady force of 131 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 59.9 kg,
asked by KS 
physics
one car of mass 15.0kg is moving 5.00m/s to the right on a frictionless track and collides with a cart of mass 3.00kg. the final velocity of the carts that become stuck together after the collision is 1.50m/s to the right. find the velocity of the second
asked by tommy 
Math
You are working as an assistant to a chef. The chef has 6 cups of berries and will use 2/3 cup of berries for each dessert he makes. How many desserts can he make? Where do I start to solve this problem?
asked by Jay 
Math
the Ruby Snow Company makes custom snowboards. the company's profit can be modelled with the relation y=6x^2+42x60,where x is the number snowboards sold(in thousands) and y is the profit (in hundreds of thousands of dollars) How many snowboards does the
asked by Anonymous 
math
an oatmeal cookie recipe that makes 24 cookies requires 1 cup of sugar if alex needs 30 cookies how many cups of sugar should she use
asked by ashley 
History
1. Why do some argue that the Supreme Court "legislates from the bench" or, in other words, actually makes law? A. The Supreme Court does not legislate, i.e. make law. B. The Supreme Court is involved in administrative law. C. The Supreme Court's rulings
asked by Nadia 
Physics
The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, as the force vectors in the drawing indicate. If the coefficient of static friction between a crutch and the ground
asked by Kristyn 
geometry
A small airplane takes off from point A and continues to climb upward in a straight line, as shown in the diagram. What is the plane’s distance from point A when it reaches point C
asked by tiffany 
I NEED HELP WITH THIS
Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the circuit C. Power
asked by Ciara 
English
1. He kept a secret. 2. He broke a secret 3. He let out a secret. 4. He gave away a secret. 5. He betrayed a secret. ================= What is the opposite of #1? Can the others be used as the opposite? What is commonly used?
asked by rfvv 
Chemistry
If the reaction 2NO + 2H2 > N2 + 2H2O occurred in just a single step, the overall order of the reaction would be A) 1 B) 2 C) 3 D) 4 E) 5
asked by Haley 
Algebra
1. If m∠1=37º , what is m∠4? a) 53º b) 43º c) 37º d) 27º 2. If m∠1=50º , what is m∠5? a) 50º b) 40º c) 35º d) 25º 3. If m∠4=25º , what is m∠8? a) 105º b) 75º c) 175º d) 25º 4. What is the sum of the interior angles of a hexagon?
asked by Maria 
chemistry
Find (triangle)H for N2H4 + CH4O > C2HO + N2 + 3H2 2NH3 > N2H4 + H2 22.5 kJ 2NH3 > N2 + 3H2 57.5 kJ CH20 + H2 > CH4O 81.2 kJ
asked by Anonymous 
Chemistry
I don't understand this one at all. Please help! For the equation: MnO2 (s) + 2 CO (g) → Mn (s) + 2 CO2 (g) 1. Calculate ΔG° at 25°C 2. Calculate ΔG° at 125°C
asked by Kate 
Physics
A motorcycle has a constant acceleration of 2.65 m/s2. Both the velocity and acceleration of the motorcycle point in the same direction. How much time is required for the motorcycle to change its speed from (a) 41.5 to 51.5 m/s, and (b) 71.5 to 81.5 m/s?
asked by Sandra 
Precalc
There exist constants a, b, c, and d such that(sin x)^7 = asin 7x + bsin 5x + csin 3x + dsin x for all angles x. Find d. I tried rewriting them in the exponential form, but it becomes ugly as there are many negative cosines and divisions of i. Help?
asked by Matthew 
math
Joey's playhouse has a perimeter of 28 feet. What could be the dimensions of the playhouse? Draw a model and label the length and width. Show that the dimensions equal a perimeter of 28 feet.
asked by Gabrielle 
Math
Jamal found 1/3 gallon of milk in the kitchen. He poured it into 5 equal size cups. What fraction of a gallon of milk is in each cup? 1/3 of 5 3 x 5 = 15 1/15
asked by AC 
Math
1) When will the dependent variable in the equation y=√x+43 equal or exceed to 4? A) x > or equal to 0.17 B) x > or equal to 45 C) x > or equal to 48 D) x > or equal to 53 2) The function t=√d/16 models the time (t) in seconds that an object has been
asked by Tia 
Physics
A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providing a steady force of 131 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 59.9 kg,
asked by Kristyn 
Astronomy
Why will detecting Earthsized planets be much more difficult than finding Jupitersized planets around other stars?
asked by San Mateo College 
finite math
Find the amount of an ordinary annuity for 5 years of quarterly payments of $2,200 that earn interest at 4% per year compounded quarterly.
asked by Sarah 
Physics
A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 8.11 s. What is its initial velocity? Neglect air resistance.
asked by Sandra 
science please help and explain asap
A train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the drawbar locomotive is 80kN Calculate a. The force required for constant speed b. The force that
asked by Buhle 
math
Roger just got a puppy for his birthday. He and his mother will build a fence around an area in the backyard for the puppy to play in. The play area will be 24 square feet. What dimensions could the play area be? Which dimensions would require the least
asked by Isaac 
Business math
At the beginning of each year, Al rose invested $1,200 semiannually at 12 percent for 8 years. The cash value of the annuity due at the end of the eighth year is?
asked by Joe 
chem
Lowpressure sodium lamps have a sodium vapor pressure of 0.7 Pa at 260 °C. How many micrograms of Na must evaporate at 260 °C to yield a pressure of 0.7 Pa in a 27mL bulb?
asked by vc 
english
1.Antigone decides to bury her brother in defiance of the law. Her sister argues against it. Summarize the two sides of the argument, and explain Antigone's reasons for doing as she does. 2.Creon says that it would be wrong for him to listen to the
asked by Julissa 
math
1. When 100 students took a test, the average score was 77,1. Two more students took the test, the sum of the score was 125. What is the new average ? 2. The Basket Ball Team and Baseball team have a total of 24 players. There are 12 basket players and 18
asked by Iman 
Chemistry
If you need to produce 355 grams of oxygen gas (O2) in the electrolysis reaction of water by an electric current. If the reaction is run at 125 degrees Celsius in a reactor volume 22500ml. What is the pressure of the produced oxygen in mm Hg?
asked by Emily 
Chemistry
If you have 225 grams of Ca3(PO4)2, and 185g H3PO4; calculate which is the limiting reagent, which the XS reagent, and how much product you will produce from the limiting reagent (in grams) Ca(PO4)2 + 4H3PO4 = 3Ca(H2PO4)2
asked by Emily 
physics
From her bedroom window a girl drops a waterfilled balloon to the ground, 4.75 m below. If the balloon is released from rest, how long is it in the air?
asked by Sandra 
English
1. I ate little food on my lunch plate. 2. I ate a little food on my lunch plate. 3. I ate less food than Bill. 4. Bill ate more food than me. 5. I ate the least food in my class. 6. I ate the least food of all my classmates. 7. I ate the least food of all
asked by rfvv 
physics
A train with a mass of 120Mg accelerates uniformly on a horizontal track.The resistance to movement is 5N per KN of the mass of the train.the force in the draw bar of locomotive is 80KN..calculate:1force reqqured for constant speed. 2.the force that causes
asked by mashao 
Chemistry
What are the correct and accurate products of the following neutralization reaction. Then write the ionic form of the equation and the net ionic form. KOH + H2SO4 >
asked by Emily 
Philosophy
Is there objectivity in ethics, or is ethics simply a matter of social convention? Does the wrongness of some acts  such as genocide, torture, terrorism, murder  transcend social convention?
asked by TayB 
Physics
A rescue helicopter is lifting a man (weight = 868 N) from a capsized boat by means of a cable and harness. (a) What is the tension in the cable when the man is given an initial upward acceleration of 1.83 m/s2? (b) What is the tension during the remainder
asked by Kristyn 
Physics
The drawing shows a circus clown who weighs 750 N. The coefficient of static friction between the clown’s feet and the ground is 0.630. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the
asked by Kristyn 
Physics !
Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the circuit C. Power
asked by Ciara 
Algebra
12. Determine if the following is a conjuction or disjunction. y + 4 < 1 or y + 2 > 8 (Points : 1) 13. State how you determined if the combination above was a conjunction or disjunction. (Points : 2) 14. Solve the problem. (Hint: You should have two
asked by kim 
Chemistry
In a chain mechanism, a reaction in which two free radicals combine to form a stable molecule would be called the A) initiation step B) termination step C) propagation step D) inhibition step E) branching step
asked by Haley 
physics
Hooke's law
asked by kate 
Chemistry
1. If two moles of ZnCl2 separate into Zn+ and Cl ions, how many moles of Zn+ ions are present? 2. How many moles of NO3 are present in one mole of Mg(N03)2? The answers to both of these are 1 mole, right?
asked by G 
Analytical Chemistry
Serum taken from a patient being treated with lithium for manicdepressive illness was analyzed for lithium concentration. A reading of 3.00xE2 units was obtained for the intensity of the 671 nM red emission line. Then 1.00 mL of a 11.8 mM Lithium standard
asked by teresmajor16 
Chemistry
24.0 mL of a 2.4 M silver nitrate is mixed with 32.0 mL of 2.0 M sodium. Calculate the mass of precipitae formed. Calculate the concentration of all ions remaining in solution after the precipitate forms. I don't know how to start this or where to go with
asked by Marissa 
Math
There are 35 marbels in a bag: 9 blue marbels, 8 green marbels, 4 red marbels, 8 white marbels, and 6 yellow marbels. Find P(red). Write the probability as a fraction in simplest form, a decimal, and a percent. A. 4\31,0.129,12.9% B. 4\35,0.114,11.4% C.
asked by Kanani 
Applied Chemistry  HELP!
Make a poster of types of product warning labels. I'm having a hard time looking up types of product warning labels. Please help and please do not just give me Google link to product label for me to look up by myself which I did but I .... having a hard
asked by Sam 
math
In a car repair shop there are 50 cars to be repaired . It is estimated that 23 of that cars need new brakes , and 34 of that cars need to repair the exhaust system . a. How many cars are in need of repair at least two? b . What most cars that are not in
asked by Iman 
physics
A flywheel rotates at a constant angular acceleration. At time t = 1.38 s, it rotates with a speed of ω = 2.40 rad/s in the clockwise direction. At time t = 5.97 s, it rotates with a speed of ω = 2.40 rad/s in the counterclockwise direction. What is its
asked by winged17 
Grambling
Displacement vector points due east and has a magnitude of 4.58 km. Displacement vector points due north and has a magnitude of 6.25 km. Displacement vector points due west and has a magnitude of 8.65 km. Displacement vector points due south and has a
asked by Sandra 
accounting
The following are examples of errors that will not be revealed by a trial balance: (a) errors of omission (b) incorrect total on trial balance (c) posting to the wrong account (d) compensating errors (e) The balance of a general ledger account has been
asked by masina 
Physics
A skateboarder approaches the circular hill with a velocity of 8.0 m/s at point B. The angle formed between the lines that join point AO and BO is 20 degrees. a) what is her speed at the top of the hill(Point A) if she coasts up to this point? b) what min
asked by Matthew 
physics
You hold a hose 45 degrees to the horizontal and at a height of 1 m from the floor. The water reaches a maximum distance of 10 m from where you are standing. Now you place your thumb over the end of the hose to occlude the opening by 80%, which in turn
asked by carolyn 
English
I need to describe the use of sound in Othello the play. Could someone give me an example from Act II for me to analyze please?
asked by Linda 
chemistry cp
The term formula mass is a general term that can be applied to both ionic compounds and molecular compounds because (a) ionic compounds exist as individual molecules (b) molecular formulas are always empirical formulas (c) not all formulas represent
asked by sally 
Math
An airplane climbs 100 feet during the first second of takeoff. In each succeeding second it climbs 100 feet more than during the previous second. How many seconds does it take for the plane to reach an altitude of 12000 feet?
asked by ER 
Calculus
When production is 1700, marginal revenue is 8 dollars per unit and marginal cost is 6.75 dollars per unit. Do you expect maximum profit to occur at a production level above or below 1700? If production is increased by 50 units, what would you estimate the
asked by Nope 
Socials 1 question
How does birth control affect our world population? Please give me a list of ideas, no sites please I know it helps reduce population growth rate but please tell me more about countries who don't have birth control and what it results in etc.. Thanks :)
asked by Maya 
chemistry
16.5 mL of 2.5 M sodium sulfate is mixed with 35.5 mL of 4.5 M sodium nitrate. What is the concentration of all ions in the new solution?
asked by Marissa 
Chemistry
In a 25.8 liter vessel of nitrogen gas that is heated from 10 degrees Celsius to 110 degrees Celsius to reach a final pressure of 17450 mm Hg; how many grams of N2 do you have in the vessel?
asked by Emily 
Physics!
An ammeter indicates the current for a toaster is 5.0 amps when the toaster is connected to 120V circuit. How much energy is given off by the toaster in 42.0 seconds? Show all calculations leading to an answer.
asked by Ciara 
math
The gardener went to the market to buy 100 animals for a total of IDR 1.000.000. If the price of cow IDR. 50,000 /cow and goat IDR 10,000 /goat , rabbit IDR 5000 /rabbit , how many of each kind of animal which can he buy ? I wrote : Cow = X = 50.000 Goat =
asked by Iman 
math
A television is sold at a discount of 13 % for IDR. 870,000. What is the actual price of the television before at a discount ? COnfuse..
asked by Iman 
math
Mr. Kardi have 5 trucks of sand . The charge then A and B are 2.5 ton , trucks C and D 3 ton , 1 ton truck E load over charge  average. How many tons of cargo trucks E ?
asked by Iman 
math
In a contest , 2 participants were asked about their age . To test the strength of their math , they are asked to add their ages together. One answer 44 and the other gives 1280. The first obtained from the parse age with one another , while the second can
asked by Iman 
geometry
given
asked by chloe 
Grambling
A jetliner, traveling northward, is landing with a speed of 83.8 m/s. Once the jet touches down, it has 750 m of runway in which to reduce its speed to 11.4 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take
asked by Sandra 
Physics
In an historical movie, two knights on horseback start from rest 79.7 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.323 m/s2, while Sir Alfred's has a magnitude of 0.252 m/s2. Relative to Sir
asked by Sandra 
UNISA
he earns 0.8% interest per month while the amount is less than R70000 and 0.7% interest per month if the amount is equal to or more than R70000, the interest is added to the total amount, calculate how many months he will have to save
asked by Pam 
Physics
You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.28 s, and the velocity of the car decreases to + 4.76 m/s. The car’s deceleration has a magnitude of 2.99 m/s2 during this time. What is the car’s displacement?
asked by Sandra 
math
what is he interior points and doundary points of empty set?
asked by meher nigar 
Exponential Equations
Jen made an initial investment of $1000 into a TBill account. After 2 years, her investment totaled $1 175. Calculate the rate of appreciation, r, of the investment. Give answer to 2 decimal places. 1000(1+r)=^2=1.1175 (1+R)^2=1.175 ??
asked by Anonymous 
Physics
Question: A car goes down a ramp, and once it hits the floor it must travel 6 metres and then stop. Create the procedure in order to find the angle that the board must be to make this scenerio possible. You cannot test on both the floor and the board at
asked by Wren 
science.......,,....
train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the drawbar locomotive is 80kN Calculate a. The force required for constant speed b. The force that causes
asked by aneleeeee 
criminal justice
could someone please let me know where I can find this type of question to read. discuss three key aspects of the school shootings that the court system has addressed so far. Thank you very much Mary Ann
asked by Mary Ann 
civics and careers
How does people's legal rights in the charter related to citizenship (informed, active citizen)? As many reasons as possible
asked by lizzy 
science.......
An electric bulb is marked 220v60w. An ammeter in the circuit shows the bulb uses a current of 0.2727A. The bulb burns for an hour. Calculate the following: A. The electrical energy consumption B. The cost for the bulb to burn for one hour if the cost of
asked by owamiii 
physics
Assume the muscle is 37C and is separated from the outside air by layers of fat and skin. The layer of fat, at a particular location on the skin, is 2 mm thick and has a conductivity of 0.53 W/mK. Finally, the outermost epidermal layer is 0.1 mm thick with
asked by carolyn 
Bus 101
Can someone help me to compare answer for final exams introduction to Business  These are my answers Here are my answers... 1.c 2.a 3.a 4.d 5.c 6.b 7.a 8.b 9.c 10.b 11.a 12.a 13.c 14.d 15.a 16.a 17.a 18.8 19.c 20.b 21.a 22.a 23.d 24.a 25.b 26.d 27.a 28.b
asked by Devon 
math
a man uses 1/3 of his land for growing mangoes,!/4 for bananas ,3/8 for apples ,and the remaining 18 hectares for oranges , so find how much land does the man have ?and find how much land does he use for growing apples ?
asked by Anonymous 
History
Is India a secular democracy? This isn't a homework question or anything this is just something I was wondering.
asked by Anonymous 
math
charlie says that y=2x squared is not a function because the same yvalue sometimes corresponds to more than one xvalue. Is charlie correct
asked by Maria 
Math
Determine the coefficient of w x^3 y^2 z^2 in (2w−x+y−2z)^8. Thanks.
asked by Anonymous 
Chemistry
Calculate the vapor pressure of Hg at 14 oC (in atm). Hg(l) ↔ Hg(g) . . . ΔHo = 61.32 kJ and ΔSo = 98.83 J/K
asked by JUNDY 
mah
Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a. Explain why the description above defines a Boolean algebra.
asked by excel 
Chemistry
What are the correct and accurate products for the following ion combination reaction? Then write the ionic form of the reaction and the net ionic form of the reaction. K2CO3 + CaCl2 >
asked by Emily 
math help
Simplify this expression fully 9x^2/x^2 3x18
asked by morongwa 
math help
Given F(x)=6/x3 1 1.for which values of x is f(x) undefined? 2.for which values of f will the function have real roots 3.what is the domain of f 4.calculate the x and y intercepts of f
asked by selowa 
algebra
x^29y^2/xy/1/y3/x
asked by RICK 
Chemistry
If you have a 1255ml of a 10.55 M solution of HCl and you need to dilute the solution to 1.555 M solution; How much solvent must you add?
asked by Emily 
math
(4n1)^2=16
asked by Vicky 
math
A man has been through 24 phases traveling in a motorcycle rally and finish as much as 37.7 % of the way to be traversed . How many phases that must be gone through to complete the 58 % ?
asked by Iman 
algebra
(x^3+y^1)/x^2
asked by RICK 
algebra/116
Which set of points are on the line y=6x6 1.{(0,6),(12,3)} 2.{(0,6),(3,12)} 3.{(6,0),(12,3)} 4.{(6,0),(3,12)}
asked by Libby 
ALGEBRA /116
Solve the inequality 5x/72>1 1.x4.2 3.x1.4
asked by Libby 
science
A mixture of zinc and anhydrous zinc nitrate was heated in air, and its mass has not changed after this procedure. Calculate the mass fractions of the components in the mixture.
asked by odwa nkqwiliso 
algebra
solve the set of linear equations by the matrices method: a+3b+2c=3, 2ab3c=8,5a+2b+c=9
asked by linear 
math
(5X+5)^2=125
asked by Abraham 
Physics
a blood centrifuge starts from rest and attains a rotational speed of 3400 rpm after 50 seconds. 1) determine average angular acceleration of the centrifgue 2) a 3ml blood sample is contained in a test tube at distance 37.5mm from the centreline. Calculate
asked by Presh 
English
1. Will you bring me the lamp? 2. OK. I'll bring it right back. 3. OK. I'll take it right back.  Which answer is correct? Are both OK? Which one is commonly used?
asked by rfvv 
physics
A worker has to move a rock with mass 50 kg on a stairway from the first floor to the second floor of a house. The second floor is 4.6 m above the first floor and the stairway has 18 steps. The rock is lifted from step to step. How much energy (in Joule)
asked by diane 
math
Ted is helping his father plant their vegetable garden this year. They will put a fence around the garden. Ted measures the length of the garden, which is 6 feet. His father tells him that the width is twice the length. How much fencing do Ted and his
asked by Dean 
Spanish
How would I say "Unhealthy cafeteria food" in spanish? Would it be "comida de la cafetería no saludable"?
asked by Anonymous 
Business
Wouldnt a "Administrative Assistant I" be considered as a nonexempt job??
asked by Wendy 
math
A number has an 8 in the hundredths place. The number also contains a digit whose value is 1 } 10 the value of the 8 in the hundredths place. Which could be the expanded form of the number?
asked by Lakshmi 
Physics
A 5000 kg space shuttle starts at rest and linearly increases its thrust from 0N to 1000N across a displacement of 2000 meters. Calculate the total amount of work done on the shuttle.
asked by jackie 
Physics!
An ammeter indicates the current for a toaster is 5.0 amps when the toaster is connected to 120V circuit. How much energy is given off by the toaster in 42.0 seconds? show all the calculations leading to your answer
asked by Ciara 
calculus
Solve the equation. Give the exact solution. 2*10^(5x3)+5=17
asked by Michael J 
Chemistry
What is the mass in grams of 6.5 moles of water? could you show me how you get the answer to
asked by jimm 
Chemistry
What is the molarity of a solution containing 10.g of NaOH in 700.mL of NaOH solution? Express your answer to two significant figures and include the appropriate units.
asked by Chan 
English
Which of the following is not a type of sentence? A. Simplecompound B. Simple C. Compoundcomplex D. Complex my answer is b.
asked by Lauren 
Algebra
Factor the following as if it were a trinomial. 25x^(3/2) + 10x^(3/4) + 1
asked by Merty 
Math
Does a in y=ax^2+bx+c have to be positive?
asked by Anonymous 
Math
How do you find x in y=5x^2+30.5x without using the formula x=b+ root b^24ac.... They say to factor it. But it's not working for me. The answer is suppose to be x= About 0.7 and 5.4. But I can't get that answer
asked by Anonymous 
math help
Simplify this expression fully 6^x 23^x.2^x 1/6^x1
asked by lesedi 
math
A 2inch length in the scale at the left represent an actual length of 20 ft. What is the scale of the drawing?
asked by elijah 
Science
What kind of energy is transferred in an energy pyramid
asked by M 
math
If the product of two numbers is even, and the result is an odd number , what is the numbers ?
asked by Iman 
math help
A tank has two pipes entering it.when operating together,they fill the tank in 40 minutes.operating independently,one of the pipes fills the tank 60 minutes faster than the other one does. calculate the time taken by each pipe to fill the tank on its own.
asked by happy 
Math
(6x+6)^2=144
asked by Saio