Questions Asked on
November 19, 2012

Math
Which of the images above represents a proof of the Pythagorean Theorem? Explain your choice, and then explain how the figure proves the Pythagorean Theorem.
asked by Eric 
7th grade math Ms. Sue please
1. The price of a radio changes from $40.00 to $44.00. (1 point) 10% decrease 10% increase 36.4% decrease 40% increase 2. The price of an oven changes from $450 to $396. (1 point) 13.6% increase 13.6% decrease 12% increase 12% decrease 3. The top
asked by Delilah 
Physics
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only a rope and a bag of tools. First he tries to throw a rope to his fellow astronaut, but the rope is too short. In a last ditch
asked by Kyle 
Chemistry
If argon has a volume of 5.0 dm3 and the pressure is .92 atm and the final temperature is 30 degrees celcius and the final volume is 5.7 L and the final pressure is 800 mm Hg, what was the initial temperature of the argon?
asked by Kaitlyn 
physics
a longitudinal wave with a frequency of 3.0 Hz takes 1.7 s to travel the length of a 2.5m slinky (see figure 16.3). Determine the wavelength of the wave.
asked by Joe 
chem
The molar concentrations for the reactants and products at equilibrium are found to be [HCl] = 0.80 M, [O2] = 0.20 M, [Cl2] = 3.0 M, and H2O = 3.0 M. What is the value of the equilibrium constant for this reaction? the complete reaction is
asked by tracy 
Physics
A refrigerator has a coefficient of performance of 4.0. When removing 2.4x10^4 J from inside the refrigerator, how much energy is sent into the environment?
asked by Q 
english
1. Why do the sorceresses agree to kill Sunjata? (1 point) Sunjata declined his father's cows. Sunjata had befriended Jelimusoni Tunku Manyan Diawara. Dankaran Tuman's offer was better than Sunjata's. Dankaran Tuman had promised them a bull. 2. Why do the
asked by Anonymous 
Math
Paul is painting a square wall with an area of 115 square feet. To the nearest foot, what is the length of the wall? Hint: A = s2. 11 29 42 58
asked by Eric 
Physics
A couch with a mass of 100 kg is placed on an adjustable ramp connected to a truck. When one end of the ramp is raised, the couch begins to move downward. If the couch slides down the ramp with an acceleration of .7 meters per second when the ramps angle
asked by E 
Physics HELP!
The position of an object connected to a spring varies with time according to the expression x = (7.1 cm) sin (2.1π t). Find (a) the period of this motion (b) the frequency of the motion (c) the amplitude of the motion (d) the first time after t=0 that
asked by Tom 
English Ms. Sue
10. I have run for this track team for eight years. (HAVE RUN is underlined) Possible answers: A.) present perfect tense B.) past perfect tense C.) future perfect tense I think it is A.
asked by Deborah 
chem
4HCl+O2=2Cl2+H2O Detremine the Kc expression for the reaction above by identifying what belongs in the numerator and what belongs int he denominator? pls do help trying to understand the concept but still confused.
asked by byke 
Physics
Sukey is riding her bicycle when she sees a fallen tree 42 m ahead. If the coefficient of friction is .36 and she is travelling at 50 km/ hr and she and the bike have a mass of 95 kg, how much stopping distance does she need. I got as far as her speed
asked by lizgreene52 
Chemistry
Can someone help draw/explain the Lewis Dot Structure for OPBr3. I've tried different things, but none of them seem to work.
asked by M 
chem
When the concentration of I2 is increased to 1.5 M, the ratio of products to reactants is 28. The equilibrium constant for the reaction is 83. In which direction will the reaction shift to regain equilibrium?
asked by tracy 
7th grade ath Ms. Sue only 1 question please
5. Sara raised her score on a math test from 86 to 94. Max changed his score on the test from 77 to 85. Who had the greater percent change? (1 point) A. They both had the same percent change. B. Max’s percent increase was about 1.1% more than Sara’s.
asked by Delilah 
mechanics
A uniform solid sphere rolls down an incline. What must be the incline angle (deg) if the linear acceleration of the center of the sphere is to have a magnitude of 0.16g?
asked by JV 
Physics
The surface of the Sun is approximately 5700 K and the temperature of the Earth's surface is about 290 K. What total entropy change occurs when 1000 J of heat of energy is transferred from the Sun to the Earth?
asked by P 
Physics
In a very busy offcampus eatery one chef sends a 241g broccolitomatopickleonionmushroom pizza sliding down the counter from left to right at 1.53 m/s. Almost simultaneously, the other chef launches a 321g veggieburgeronabun (with everything, but
asked by Kyle 
Chemistry
Which do not obey the octet rule? Check all that apply. NO BF3 ICl2^ OPBr3 XeF4 An explanation would be appreciated, thanks.
asked by Ezra 
Physics
A uniform ladder of length L and mass m leans against a frictionless vertical wall, making an angle of 56° with the horizontal. The coefficient of static friction between the ladder and the ground is 0.36. If your mass is four times that of the ladder,
asked by Ariana 
Math
Thinking about the different types of numbers you learned in this unit, how would you help someone remember the differences between rational and irrational numbers? Remember to mention some of the Key Words from your lessons
asked by Eric 
CHM formula needed, pls?
How many milliliters of a 0.25 M sucrose solution contain 2.0 grams? The molar mass of sucrose (C12H22O11 ) is 342.3 g/mol.
asked by Vc 
English ms. sue
ms. sue for the article an ode to user friendly pencil i need to write thematic statement, but i not sure what to exactly say about it, cause its just about the author being ironic and making a point. also ms. sue do the title be ironic as well because
asked by Mohammad 
math
Jonah and his friends go apple picking. Jonah fills 5 baskets. each basket holds 15 apples. if 4 of jonahs friends pick the same amount. how many appples do Jonah and his friends pick in all? please help solve this problem?
asked by stephie 22 
Statistics
Over time, a student analyzes her ability to guess correctly after narrowing down multiple choice answers in a 5selection question (a through e). She discovers that if she narrows her answers to 2 or 3 choices, her probability of getting the right answer
asked by PetarI 
Physics
An electrical generating plant operates at a boiler temperature of 220 deg C and exhausts the unused heat into a nearby river at 18 deg C. what is the maximum theoretical efficiency of the plant?
asked by R 
chem
a.) At equilibrium, the molar concentrations for reactants and products are found to be [I2] = 0.50 M,[Cl2] = 0.60 M, and [ICl] = 5.0 M. What is the equilibrium constant (Kc) for this reaction? b.) The concentration of I2 is increased to 1.5 M, disrupting
asked by Tracy 
EnglishGrammar
The underlined words (I put them in parantheses) are an example of a(n) ___________. (When the earth, moon, and sun are in line), an eclipse occurs. A. adverbial clause B. adjectival clause C. noun clause My answer is C.
asked by anon 
chem
PCL5=PCl3+Cl2 a. Initially 0.72 mole PCl5 are placed in 1.50 L flask. At equilibrium, there is 0.16 mole PCl3 in the flask. What is the equilibrium concentration of the PCl5? b. What is the equilibrium concentration of the Cl2? c.What is the equilibrium
asked by chemdummy79 
Chemistry
In an experiment, 0.0300 moles each of SO3(g), S02(g), and O2(g) were placed in a 10.0L flask at a certain temperature. When the reaction came to equilibrium, the cocentration of SO2(g) in the flask was 3.50x10^5 molar. What is Kc for the reaction?
asked by Mitch 
Physics
A thrillseeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates vertically in SHM. The amplitude is 0.050 m, and at the highest point of the motion the spring has its natural unstretched length.
asked by Alex 
Biochem
A buffer solution is prepared by mixing 200 mL of 0.2 M salt solution and 400 mL of a 0.2 M acid solution. What is the concentration of the resulting buffer? ~what is the pKa?
asked by Dr. Nick 
Physics
A cat chases a mouse across a 1.1 m high table. The mouse steps out of the way, and the cat slides oﬀ the table and strikes the ﬂoor 2.2 m from the edge of the table. The acceleration of gravity is 9.81m/s^2. What was the cat’s speed when it slid
asked by Colby 
Physics
A sled is pulled across a horizontal snow surface with a constant velocity. The force being applied is 80 N at an angle of 53 degrees to the ground. What is the magnitude of the force of friction of the snow acting on the sled?
asked by PH 
chemistry
Would a damp filter paper affect the theoritical yield, calculated actual yield and calculated percent yield. Please help. Chemistry is hard.
asked by Anonymous 
math
The daily total cost (in dollars) incurred by Trappee and Sons for producing x cases of TexaPep hot sauce is given by the following function. c(x)=0.000002x^3+3x+453 (a) Find the average cost function C. C = ? (b) Find the level of production that results
asked by Julie (PLEASE HELP!!!) 
Math
What is the sqaure root of thirty six over forty nine?
asked by Eric 
Physics
An open train car, with a mass of 2150 kg, coasts along a horizontal track at the speed 2.29 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 2.67 s at the rate of 441 kg/s. What is the car's speed after the
asked by Kyle 
Physics
Football is kicked up into the air with a velocity of 20m/s. a. Determine the time the football is in the air. b. Determine the maximum height the football would reach. c. As the ball is kicked it encounters a weird horizontal wind that gives it a velocity
asked by Sarah 
CHM
How many milliliters of a 0.25 M sucrose solution contain 2.0 grams? The molar mass of sucrose (C12H22O11 ) is 342.3 g/mol. Need the formula to understand how to continue with more problems.
asked by V 
chemistry
472 mL of H2 gas was collected over water when 1.256 g of Zn reacted with excess HCl. The atmospheric pressure during the experiment was 754 mm Hg and the temperature was 26 degrees C. A. Write the balanced chemical equation (I have this) Zn + HCl >
asked by Jeremiah 
chem
How much heat (in {kJ}) evolves when 7.0L of C2H2(d = 1.0967kg/m^3) is mixed with a stoichiometric amount of oxygen gas? The combustion reaction is C2H2+ 5/2 O2> 2 CO2+ H2O, Delta H=1299.5 kJ
asked by Chironjit 
science
A car travels 5km to east. Then it goes 3km to north and then 2km to west. What is the displacement the car has traveled?
asked by Mouli 
Math
The daily total cost (in dollars) incurred by Trappee and Sons for producing x cases of TexaPep hot sauce is given by the following function. (a) Find the average cost function C. C = ? (b) Find the level of production that results in the smallest average
asked by Julie 
Physics URGENT!!!
A spring of negligible mass stretches 2.14 cm from its relaxed length when a force of 8.40 N is applied. A 1.300 kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin
asked by Sarah 
math
40022153=1849 how is regrouping thousand shown in the problem above
asked by daniella 
math
show me how to do 400 divided by 43.18=
asked by amelia 
math
A right circular cylinder has a diameter of 16 mm and a height of 12 mm. What is the surface area of the cylinder?
asked by Anonymous 
financial accounting
eckman company purchased equipment for $80,000 on january 1,2011 and will use the double declining balance method of depreciation. it is estimated that the equipment will have a 5 year life and a $4,000 salvage value at the end of its useful life. the
asked by daniel 
Physics
A person consumes 2500 kcal/day while expanding 3500 kcal/day. In a months' time, about how much weight would this person lose if the loss were essentially all from body fat? (Body fat has an energy content of about 4100 kcal per pound).
asked by T 
Geo 7th Grade
Which of the following comparisons between Mexico's coastal areas and its heartland is accurate? a. The heartland gets very little rainfall, while the coastal areas get a great deal of rain. c. The coastal areas are devoted to tourism, while the heartland
asked by rawr... im a dinosaur.... rawr 
Chem
When 25.0g of Zn reacts with Hcl, how many L of H2 gas are formed at STP?
asked by Kenya 
physics 209
A mass m = 0.5 kg is hung from a pulley with moment of inertia I = 0.20kg⋅m2 and radius R = 10cm. There is friction in the pulley. The mass is dropped from rest, and after 2s it traveled 0.4m. What is the torque due to friction?
asked by mike 
Physics
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the 0.430 kg ball precisely at the peak of his jump, when he is 19.2 inches off the ground. He hits the ground 1.61 inches away from where he
asked by Kyle 
Math
Jennifer plans to fence a rectangular area around her rectangular swimming pool. The total area enclosed by the fence, including the pool, should be 5 times the area of the pool alone. The pool is 20 feet by 17 feet. A.)What is the total area enclosed by
asked by Vic 
Physics
9. In which system is heat usually transferred from the cooler part to the warmer part? a. A stove as it heats up water. b. A refrigerator that is running. c. An electric fan that is running. d. None of the above, because it is impossible to transfer heat
asked by S 
Chemistry
Balance the following equations for a half reaction that occurs in a acidic solution A) ClO3 > Cl2 B)H2BO3 >BH4 C) MnO4 + HNO2 >NO3 +Mn2+
asked by Anonymous 
EARTH SCIENCE
You are given a 6month assignment by your employer to work at a remote location in Australia. In order to pack as lightly as possible, you try to research the climate of a small town in Australia. There is little data since no major cities are located
asked by alice 
Physics
A plane drops a hamper of medical supplies from a height of 2960m during a practice run over the ocean. The planes horizontal velocity was 108m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity at the hamper at the
asked by Colby 
Grammar
Choose the correct sentence. A) Her and I are going to be good friends. B) She and I are going to be good friends. I answered B
asked by Marie 
Geo 7th Grade
One challenge faced by people living in Mexico’s heartland region is __________________. a. the threat of hurricanes c. the threat of earthquakes b. the threat of typhoons d. the threat of tornadoes A or C? I'm not sure
asked by rawr... im a dinosaur.... rawr 
Chemistry
How many grams of I2 are present in a solution if 38.55ml of 0.160M Na2S2O3 solution is needed to titrate I2 the solution?
asked by Michi 
Physics
During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 148g baseball crashing through the pane of a secondfloor window in a nearby building. The ball strikes the glass at 10.1 m/s, shatters the glass as it passes through,
asked by Kyle 
trigonometry
Been trying this forever so it says: Simplify 1+sin2x+cos2x/1+sin2xcos2x ive tried this problem so many times I need help with it...
asked by Maria 
physics, university
A 50.0g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11 x 108 ohms/m and the density is 7.86 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of
asked by Emma 
Intermediate Algebra
A model rocket is launched from a height of 50 feet. the formula: h=16t^2+70t+50 describes the rocket's height,h,in feet t seconds after it was launched. how long will it take the rocket to reach the ground.
asked by nicole 
math
Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of $5 per bottle. However, the profit from each bottle beyond 9600 drops by $0.0002 for each additional bottle sold. Assuming at
asked by Julie 
Chemistry
Determine the amount (in grams) of boron that when substitutionally incorporated into 1 kg of silicon will establish a charge carrier density of 3.091×1017 carriers/cm3.
asked by selly 
Intro to Chemistry
How do you determine the mass of NACL needed to prepare 25.00 ml of a 1.585M NaCl Solution?
asked by Jenny 
Chemistry
The heat of combustion of 2propanol at 298.15 , determined in a bomb calorimeter, is 33.41. (a) For the combustion of one mole of 2propanol, determine delta U (b) For the combustion of one mole of 2propanol, determine delta H
asked by Chironjit 
early childhood literacy
Small group discussions with preschoolers enables them to: A)find out if they are superior. B)learn to argue. C)outsmart the others and gain teacher attention. D)compare their ideas with peer ideas. I need help with this one. I think its b.
asked by Anonymous 
Business math
Matty Kaminsky owns a new Volvo. his june monthly interest was $400. The rate is 81/2 percent. Matt's principal balance at tje beginning of june is 360 days
asked by Anonymous 
Chemistry
In this lab experiment you will make 100.0 mL of a 0.100 M solution of Co(NO3)2. However you must calculate the number of moles of compound that will be needed (moles= Molarity x Liters).Then calculate the mass of Co(NO3)2 that will need to be weighed out
asked by Melissa 
physics
A solid has weight of 400g in air and when partly immersed in a liquid , has a weight of 320g. if it has a relative density of 0.80, fine the volume of the solid
asked by Linda naa welbeck 
ponitz
Determine in which direction the parabola below opens. y = 6x2 + 4x + 1
asked by ebb 
Geo 7th Grade
Which of the following coastal regions contains deposits of petroleum and natural gas? a. Northern Pacific coast c. Gulf coastal plain b. Southern Pacific coast d. Yucatán Peninsula C?
asked by rawr... im a dinosaur.... rawr 
Chemistry
How much heat is needed to increase the temperature of 60 g of H2O from ice at 5C to liquid at 20C?
asked by Halie 
Math
Two fair dice are rolled. Let X equal the product of the 2 dice, compute = for = 1,2,…,36
asked by Anonymous 
maths
A Cuboid dimension 14cm*8cm*7cm is completely emerged in cuboid trough with side 28cm containing water 20 cm.what will be the height of water after emerging?
asked by tuhituhi 
Grammar
Which sentence is correctly punctuated? A) He asked “Who do you think you are”? B) He asked, “Who do you think you are”? C) He asked, “Who do you think you are?” D) He asked “Who do you think you are?” I answered C
asked by Marie 
Chemistry
A 100.0mL solution containing aqueous HCl and HBr was titrated with 0.1290M NaOH. The volume of base required to neutralize the acid was 47.56mL. Aqueous AgNO3 was then added to precipitate the Cl and Br ions as AgCl and AgBr. The mass of the silver
asked by Melia 
Physics
Consider a piece of metal that is at 5 deg C. If it is heated until it has twice the internal energy, its temperature will be. a)556 deg C b)283 deg C c)273 deg C d)278 deg C e)10 deg C
asked by S 
math
The number of bacteria in a culture is modeled by: n(t) = 1330e^(0.42t) (a) The initial number of bacteria is: (b) The relative rate of growth of this bacterium population is: (c) The number of bacteria after 3 hours is: (d) After how many hours will the
asked by NotGonnaSay 
English
I have written my answers as following. Please improve my answers if needed: The story "The Wedding Gift" by Thomas Raddall makes use of symbolism. A) Explain what the snow represents. The snow in the short story is the representation of the hope and
asked by HanuEng 
chem
The heat of combustion of 2propanol at 298.15 {\rm K}, determined in a bomb calorimeter, is 33.41{\rm{kJ/g}}. (a)For the combustion of one mole of 2propanol, determine \Delta U. (b)For the combustion of one mole of 2propanol, determine\Delta H.
asked by Chironjit 
physics
A daredevil decides to jump a canyon of width 8.4 m. To do so, he drives a motorcycle up an incline sloped at an angle of 12.6 ◦ . The acceleration of gravity is 9.8 m/s 2 . What minimum speed must he have in order to clear the canyon? Answer in units of
asked by Anonymous 
physics
a light fixtures of 80.o N hangs from a verttical chain that is tied to two other cables that are fastened to support. Both the upper cables make an angle of 37.0 with respect to the horizontial. calculate the tension in the left and right cables
asked by Anonymous 
Math
A ball is dropped from a height of 36 feet. The quadratic equation d=1/2 gt^2 is used to calculate the distance (d) the ball has fallen after t seconds. The constant g is the acceleration of gravity, 9.8m/s^2. How long does it take the ball to hit the
asked by Lux 
Chemistry114
The air in a cylinder with a piston has a volume 220 ml and pressure of 650 mm hg. If the pressure inside the cylinder increase to 1.2 atm. what is the final volume of the cylinder? Complete the following data table.
asked by John 
History
What are the four powers denied to congress?
asked by Emma 
college bookkeeping
you would transfer the net profit for a period to? a. an asset account b. a liability account c. an owner's equity account d. to the general ledger I am stumped!! seems to me it could be a or c????
asked by salsa:) 
Chemistry
1 ml of 8.675x10^3 M sodium salicylate was dispensed in a 100 ml volumetric flask, It was diluted to 100ml mark with acidified 0.02 M Iron (III) Chloride solution. What is the number of moles of Iron (III) Salicylate complex?
asked by Emma 
Grammar
Which type of sentence is the following? It seems to be worse when he plays golf, it does not bother him when he bowls. A) correct sentence B) runon sentence C) sentence fragment I answered A it seems to be fine.
asked by Marie 
physics
a converging mirror of focal length 20cm forms an image which is twice the size of the object .calculate 2 possible distances of the object from the mirror?
asked by shajal 
atmospheric pressure
How many moles of gas must be forced into a 3.9 ball to give it a gauge pressure of 9.8 at 25? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.5 so that the total pressure in the ball is 24.3 . Express your
asked by Anonymous 
SCIENCE
At 35°C, K = 1.6 105 mol/L for the following reaction. 2 NOCl(g) 2 NO(g) + Cl2(g) Calculate the concentrations of all species at equilibrium for each of the following original mixtures. (a) 3.8 mol of pure NOCl in a 2.0L flask NOCl ___ M NO ___M Cl2 __
asked by BETH 
Grammar
Which type of sentence is the following? The abdomen was hard and firm, nonreducible, there were no bowel sounds within the hernia. A) correct sentence B) runon sentence C) sentence fragment I answered B the sentence makes no sense to me should there at
asked by Marie 
physics
A ball is thrown horizontally from the top of a building 17.6 m high. The ball strikes the ground at a point 67.7 m from the base of the building. The acceleration of gravity is 9.8 m/s^2 Find the time the ball is in motion. Answer in units of s
asked by Liz 
science
Broad areas of folded rock layers that resemble a bowl turned rightside up are called _____. domes basins horsts monoclines
asked by Anonymous 
chemistry
the average mass of a kernel of popcorn is 0.15g? what would be the mass of one mole of kernels ?
asked by Haley 
math
Giita walks 2 1/2 miles in one hour. How much time does it take her to walk 7miles. Round the answer to the nearest second.
asked by emmy 
physics university
A 10C charge is positioned at x=0m, a 5C charge is positioned at x=0.06m and a 2C charge is at 0.09m. What is the net force on the 5C charge? answer is (Fnet = 2.5x1013 N)
asked by chanty 
math
Beth Dahlke is taking a ten question multiple choice test for which each question has three answer choice only one of which is correct. Beth decides on answers by rolling a fair die and making the first answer choice if the die shows 1 or 2 the second if
asked by Katarzyna 
calculus
a rocket is launched vertically and travels at 100 meters per second. a tracking radar is 500 meters from the launch site. when the rocket is 800 meters high, how fast must the radar antenna tilt( in radians) in order to track the rocket?
asked by amy 
Math
Ella walked 4.5 km/h to her friends house. She walked back home from her friends house at 3.5 km/h. She walked a total of 40 minutes. How many minutes was her walk on her way to her friends house?
asked by Becky 
Physics
A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
asked by Joshua 
algebra
Do the equations x = 4y + 1 and x = 4y – 1 have the same solution? Justify your answer with an explanation or a graph. How might you explain your answer to someone who has not learned algebra?
asked by Anonymous 
Physics
A 40,000 kg railroad car initially traveling at 10 m/s collides in elastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
asked by Anonymous 
Maths
A geographical globe has a radius of 18cm.find the radius of the circleformed by the parallel of latitude 56 degrees south.
asked by Tosin 
physics
A particle with a mass of 3.00 1020 kg is oscillating with simple harmonic motion with a period of 7.00 105 s and a maximum speed of 4.50 103 m/s. (a) Calculate the angular frequency of the particle. rad/s (b) Calculate the maximum displacement of the
asked by Pipsy 
PHYSICS
while exploring a cave, a spelunker starts at the entrance and moves the following distances in a horizontal plane. she goes 75.o m north, 250 m east, 125 m at angle theta =30.0 north of east, and 150 m south. find her resultant displacement from the cave
asked by JOAN 
English
10. I have run for this track team for eight years. Possible answers: A.) present perfect tense B.) past perfect tense C.) future perfect I think its B.
asked by Deborah 
English
What is a great thesis statement for how supply and demand affects urbanization
asked by Elizabeth 
Physics
A plane drops a hamper of medical supplies from a height of 2960m during a practice run over the ocean. The planes horizontal velocity was 108m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity at the hamper at the
asked by Laney 
Physics
A 10 kg block is placed on a ramp. The ramp has a 20 degree angle above the horizontal. What force of friction is needed to keep the block at rest?
asked by Cameron 
Chemistry
What is the concentration in mol/L of a CuSO4 solution containg 1.0 mole of CuSO4 in 250 mL of Solution? I would like to know how to calculate the answer and be giving the correct answer please.
asked by Hannah 
Grammar
Choose the correct sentence. A) Did you see the Smith’s new car? B) Did you see the Smiths new car? C) Did you see the Smiths’ new car? I answered A
asked by Marie 
Physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose crosssectional area A2 = 0.0700 m^2. The gas has a density of ρ = 1.80 kg/m^3. The
asked by Jim 
Physics
part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of
asked by kate 
physics
An open train car, with a mass of 2070 kg, coasts along a horizontal track at the speed 2.31 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 3.25 s at the rate of 491 kg/s. What is the car's speed after the
asked by Alex 
math
A game show contestant is offered the option of receiving a computer system worth $2300 or accepting a chance to win either a luxary vacation worth $5000 ora boat worth $8000.If the second option is chosen the contestant"s probability of winning the
asked by Andrew 
Physics
part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of
asked by kate 
Math
Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the xaxis.
asked by Eric 
Physics
During a baseball game, a batter hits a pop up to a fielder 65m away. The acceleration of gravity is 9.8m/s^2. If the ball remains in the air for 5.7s, how high does it rise? Answer in units of m.
asked by Scott 
Physics
A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
asked by Joshua 
chemistry
boron10 has an atomic number of 5. how many neutrons are in this isotope? 0 neutrons, 2 neutrons, 5 neutrons, 10 neutrons. I say 5
asked by drew 
Math
How long it will take for an investment of 2000 dollars to double in value if the interest rate is 9.5 percent per year, compounded continuously?
asked by Emily 
health
if i put a .... that's what ithink the answer is may u checkitin tell what i got wrong so i can retry to do it 11. Fats help maintain your cell membranes. (1 point)True False .... 12. Your body does not use energy when you sleep. (1 point)True False ....
asked by Anonymous 
Physics
A plane drops a bomb from an altitude of 10,000m. a. Determine the time the bomb is in the air. b. Determine the velocity the bomb would have right before it hits the ground. c. Before the bomb is launched the plane has a horizontal velocity of 92m/s.
asked by Alex 
Physics
A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
asked by Joshua 
Physics
part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of
asked by Sarah 
Chemistry
Chemical analysis of a germanium crystal reveals indium at a level of 0.0003091 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Ge matrix is negligible, what is the density of free charge carriers (free
asked by selly 
Physics
During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 148g baseball crashing through the pane of a secondfloor window in a nearby building. The ball strikes the glass at 10.1 m/s, shatters the glass as it passes through,
asked by Kyle 
Math
if a 65 inch of wire is divided into 7 equal pieces how much wire is left over?
asked by sue 
trouble
Unlike elementary school, Elvis wasn't popular in high school. He didn't fit in well with the other kids, half due to his weird fashion style, and partly because of his shyness. In his senior year, his high school held a talent show which he entered not
asked by Bryce 
Math
The length of the hypotenuse of a right triangle is 15 cm. The length of one leg is 9 cm. Find the length of the other leg. 6 cm 12 cm 17 cm 144 cm
asked by Eric 
math
(3/5, 2) is a point on the terminal side of theta, find the value of the six trig functions
asked by Amina 
Chemistry
Devise a test to distinguish between Cu2+ and Co2+.
asked by Grace 
English
1. I need some bread and some cheese. 2. I need some bread and cheese. (Are both the same or different in meaning?)
asked by rfvv 
Physics
2. Suppose you pour 15 g of hot water (at 55 oC) into a glass that contains 20 g of ice (at  10 oC). Neglect the heat absorbed in the glass itself. a. How much heat would the water give up to get cooled to the melting point? b. How much heat would it take
asked by Jonathan 
physics
A catapult gives a rock a vertical velocity of 122m/s. a. Determine the time the rock is in the air. b. Determine the maximum height the rock would reach. c. As the rock leaves the catapult the rock also has a horizontal velocity of 34m/s. solve for the
asked by Sadie 
Math
578 of 850 employees work directly with guests what percentage of employees work directly with guests
asked by J 
Chem II
Find the mass of sodium formate that must be dissolved in 200.00cm^3 of a 1.0M solution of formic acid to prepare a buffer solution with pH=3.40? I have no clue how to work this out. Please help me.
asked by Bianca 
college algebraplease help
what does Descartes rule of signs tell you about the possible number of positive real number zeros and the possible number of negative real zeros of the function? 1. f(x)=2x^55x^2+x1 2. f(x)=5x^6+7x^4x6 please show work
asked by ladybug 
math
Round the nearest ten 131 137 133 139 135 134 138 those are the numbers
asked by deja moore 
math
for n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x succes n=5,p=1/3, x=4
asked by Katarzyna 
chemistry
Lithium6 has an atomic number of 3. how many neutrons are in this isotope? A. 0 neutrons, B. 3 neutrons, C. 6 neutrons, D. 9 neutrons I say B
asked by drew 
politics
Most people would agree that everybody has a right to privacy. However, that right is not explicitly guaranteed in the Constitution. As such, many argue that the Supreme Court overstepped it's authority in establishing a Constitutional protection for
asked by Anonymous 
Physics
A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.
asked by Anonymous 
Physics
A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
asked by Anonymous 
Grammar
Which type of sentence is the following? An example would be. A) correct sentence B) runon sentence C) sentence fragment I answed C
asked by Marie 
Chemistry II
Devise a test to distinguish between Cu2+ and Co2+.
asked by Grace 
Physics
A man jumps straight up at 5m/s. a. Determine the time the man is in the air. b. Determine the maximum height the man would reach. c. As he jumps, a jerk pushes him in the back, giving him a velocity of 12m/s. determine the range of the man. d. Solve for
asked by Carrie 
Chemistry
By titration it is found that 69.9 mL of 0.151 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.
asked by Janessa 
arithmetic
Write 8tenth with common fraction and decimal fraction
asked by Anonymous 
chemistry
A solution contains 5.00% (by mass)NaCl. The density of the solution is 1.064 g/cm^3. What is the molarity of NaCl?
asked by evelyn 
math
rewrite the equation so that y is a function of x.then use the result to find y when x= 2,1,0,1 6x1=4y+2
asked by brittney 
calculus
Use the tangent line approximation to approximate the value of ln(1008)
asked by paul 
Punctuation
Which sentence is correctly punctuated? A) A wellrounded medical transcription editor is very detail oriented, and s/he usually loves to learn new words. B) A wellrounded medical transcription editor is very detail oriented and s/he usually loves to
asked by Marie 
Physics
A 1.1 kg lizard lies on a flat rock tilted. A person decides to tilt the rock hoping that the lizard falls off. The rock is tilted at an angle of 15 degrees with respect to the horizontal. The coefficient between the rock and the lizard is .16. What is the
asked by Elle 
Grammar
Which type of sentence is the following? Risk factors that are involved. A) correct sentence B) runon sentence C) sentence fragment I answered C, because what risk factors?
asked by Marie 
Geo 7th Grade
What effects does climate have on Mexican daily life and its economy? I have no idea?!
asked by rawr... im a dinosaur.... rawr 
Chemistry
Devise a test to distinguish between Cu2+ and Co2+.
asked by Grace 
English
In what stage of grief do people hold on to pets or objects that was their loved one who died? Thanks
asked by Rebekah 
chemistry
which of the following are paramagnetic: O2, O2(), O2(2) and why?
asked by chemistryrules 
Can someone help with this?
A psychologist is performing an experiment involving a controlled group and an experimental group. With the experimental group, the psychologist is giving a placebo and labeling it as caffeine pill. The control group receives a caffeine pill, which is
asked by Angie 
chemistry
A puncture in the tubing of a refrigerator can cause severe frosbite as chloroethane C2H5Cl, vaporizes. Use this thermochemical equation to calculate the heat absprbed when 23.6g of chloroethane vaporizes at its boiling point (9.66kj) C2H5Cl(liquid) +
asked by Ted 
History
What are five kinds of cases heard by the Federal Courts?
asked by Emma 
chemistry
a 12.0g of sample A (70.2g/mol)was burned in a bomb calorimeter in an excess of O2(g). A+2 O2(g)> 2 CO2(g) +2 H2O(l) The temperature of the calorimeter rose from 25.00 degrees celisus to 29.82 degree celisus. ifthe heat capacity of the calorimeter and
asked by evelyn 
science
how much of naoh is required to neutralize 1500 ml of 0.1 N hcl
asked by Anonymous 
Math
decide on a topic which is adding more clubs for which they would like to collect data and design a survey for school which could really be used to convince the principal to do. Create 57 questions for the survey.
asked by Emily 
statistics
2. The Occupational Safety and Health Administration (OSHA) estimates that roughly 30% of all worker compensation claims stem from back injuries. This statement was made many years ago and you want to know if this has changed in recent years. Suppose you
asked by Anonymous 
Chemistry
1)The conduction band is at a higher energy than the valence band. True or false? 2)No electronic states lie between the conduction and valence bands in ntype silicon. True or false?
asked by selly 
chemistry
Gallium nitride (GaN) is a semiconductor with a bandgap Eg=3.2 eV. Calculate the absorption edge of GaN. Express your answer in units of m.
asked by selly 
Physics (Please, it's a minor error)
A rectangular block has dimensions 1.5cm x 3.2cm x 3.9cm and a mass of 61g. Determine the density in SI units My taking on the question, Mass= 0.061kg Volume= 0.1872m Density=0.061kg/0.1872m=0.3258547kgm^3 Can someone please tell me where I'm going wrong?
asked by Orla 
Physics
part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of
asked by kate 
physics
So I already got the answer for the first part: An airplane is flying in a horizontal circle at a speed of 102 m/s. The 80.0 kg pilot does not want the centripetal acceleration to exceed 6.18 times freefall acceleration. Find the minimum radius of the
asked by julie 
algebra
Factoring 12m^2n^28mn+1
asked by Imani 
Math
A plane will normally cover 52 km in 12 min in still air. On one trip she flew with the wind for 2.5 hr. returning, she still had 100 km to go after 3.5 hr. what was the wind speed?
asked by Kay 
business statistics
1.21 Three professors at Northern Kentucky University compared two different approaches to teaching courses in the school of business (M. W. Ford, D. W. Kent, and S. Devoto, “Learning from the Pros: Influence of WebBased Expert Commentary on Vicarious
asked by sherry 
Physics HELP!
2. Suppose you pour 15 g of hot water (at 55 oC) into a glass that contains 20 g of ice (at  10 oC). Neglect the heat absorbed in the glass itself. a. How much heat would the water give up to get cooled to the melting point? b. How much heat would it take
asked by Jonathan 
Geo 7th Grade
About half of the acid rain in Canada comes from the United States. true?
asked by rawr... im a dinosaur.... rawr 
Physics
When a gun (3 kg) shoots a bullet (.025 kg), the bullet goes forward and the gun recoils backward. Which of the following statements is true? Select one: a. The force pushing the gun backwards is smaller than the force pushing the bullet forward. b. Both
asked by Cameron 
Physics
A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.
asked by Michelle 
How do I calculate the number of atoms in a compou
I have the mass of the amount of substance, and the molar masses. How do I do this? Is this the same as calculating the number of molecules/ formula units? Also, I know the number of atoms for each element in the compound (It made me calculate that before)
asked by pinkmercy 
Grammar
Which sentence is correctly punctuated? A) This test, in my opinion, is easy. B) This test in my opinion is easy. C) This test, in my opinion is easy. D) This test in my opinion, is easy. I answered C
asked by Marie 
Physics
For which of the following situations can the equation F = mg not be used to calculate the force due to gravity? a) The pull of gravity on an apple on the surface of the Earth. b) The pull of gravity on an airplane flying at an altitude of 8 km above the
asked by Kelvin 
calculus
A 100 inch piece of string is cut into 3 pieces. One piece forms a circle, one forms a square and 1 forms an equilateral triangle. If the perimeter of the triangle is equal in length to the perimeter of the square how long should each piece of string be to
asked by Dan 
college algebra
use the remainder theorem to find the remainder when f(x) is divided by x+2. then use the factor theorem to determine whether x+2 is a factor of f(x). f(x)=4x^6+36x^3+32 please show work
asked by ladybug 
math
Use the tangent line approximation to approximate the value of ln(1.004)
asked by Melissa 
Physics
A 4.29 kg block starts from rest at the top of a 31.8 degrees incline and slides 2.22 m down the incline in 1.22 s. The acceleration of gravity is 9.8 m/s^2. What is the acceleration of the block? Answer in units of m/s^2 What is the coeﬃcient of kinetic
asked by Anonymous 
Physics
Two objects are connected by a string with a mass less, friction less pulley. The coefficient of friction is .298. The block on the table is 4 kg. What must the mass of the hanging block be so that the block on the table will move with a constant speed?
asked by Elle 
chemistry
How do I calculate the number of atoms in a compound (not an element)? I have the mass of the amount of substance, and the molar masses. How do I do this? Is this the same as calculating the number of molecules/ formula units? Also, I know the number of
asked by pinkmercy 
Algebra
Write expression as the logarithm of a single expression or number: ln(3x+2)+ln(x+4)
asked by Britt 
Algebra 1
solve: log8(w6)=2log8(w+15) note: the 8 is to be little at the bottom right corner of log
asked by Britt 
Chemistry
Select all suitable dopant atoms from the following list: P B Mg Ga As In Sb Al Tl H
asked by selly 
Physics
A helicopter drops a box from 120m in the air. a. Determine the time the box is in the air. b. Determine the velocity the box would have right before it hits the ground. c. Before the box falls the helicopter had a horizontal velocity of 55/s. Determine
asked by Karen 
Math
What is the slope of the line that passes through (5,8)(17,2)? I think the answer is: 1/2 (1 over 2)
asked by Tim 
Art
4. What artist from the Harlem Renaissance used geometric shapes and areas of flat color in his work.
asked by Jman 
chemistry
A compound of Fe and Cl is soluble in water. An excess of AgNO3 was added tp precipitate the Cl as AgCl. if a 1.540g sample of the compund gave 4.082g AgCl, What is the formula of the compound?
asked by evelyn 
Math prep
1). Using the function: y=y0,(.90)^t1. In this equation y0 is the amount of initial dose and y is the amount of medication still available t hours after drug is administered. Suppose 20mg of the drug is administered. How long will it take for this initial
asked by Britt 
chemistry
Lithium6 has an atomic number of 3. How many protons are in this isotope? A. 0 protons B. 3 protons C. 6 protons D. 9 protons I think 3
asked by drew 
reading anybody know?
5. Which of the following explain why Momma plans the trip to Birmingham so carefully: (1 point)
asked by tesj 
Physics
A plane is capable of flying 200 km/h. There is a wind of 90 km/h from the east. The pilot flies in a northwest direction relative to the ground for three hours from city A to city B. Find the speed of the plane relative to the ground, the heading of the
asked by Anna 
Punctuation
Which sentence is correctly punctuated? A) Upon hearing her children were hungry; she cooked a lovely homemade dinner. B) Upon hearing her children were hungry she cooked a lovely homemade dinner. C) Upon hearing her children were hungry, she cooked a
asked by Marie 
Physics
A plane is capable of flying 200 km/h. There is a wind of 90 km/h from the east. The pilot flies in a northwest direction relative to the ground for three hours from city A to city B. Find the speed of the plane relative to the ground, the heading of the
asked by Anna 
maths
how fast does a child`s heart beat in a minute?
asked by lizzy 
Cell Biology
How many molecules of ATP will be synthesized by the complete oxidation of one molecule of fructose 1, 6bisphosphate to carbon dioxide and water by a liver cell? Show your work.
asked by Teddy 
Intermediate Algebra
your house sits on a rectangular lot that has a perimeter of 320 feet. you want to fence the two sides and the back of your lot. your neighbor on the back end wants to have a concrete frence that costs $16 per foot. your side neighbors do not want such an
asked by nicole 
chemistry
Actinides and Lanthanides are elements in group 3A. true or false I say false
asked by drew 
Grammar
Choose the correct sentence. A) The fee for various classes are different. B) The fee for various classes is different. Answered A
asked by Marie 
Math
Jennifer plans to fence a rectangular area around her rectangular swimming pool. The total area enclosed by the fence, including the pool, should be 5 times the area of the pool alone. The pool is 20 feet by 17 feet. What is the total area enclosed by the
asked by Vic 
Physics
A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.
asked by Anonymous 
Grammar
Choose the correct sentence: A) The dean, as well as the faculty, are in favor of the plan. B) The dean, as well as the faculty, is in favor of the plan. I answered B
asked by Marie 
Math Functions
f(x)= 3x+2/2x+4 graph the function horizontal and vertical asymptotes. Show the table. I found the horizontal and vertical asymptotes, but im confused on how to do a table
asked by Jennifer 
Math
What is the slope of the line that passes through (12.5,3.2)(15.5,7.2)? I think the answer is: 10.4/3.5. Not sure on this one.
asked by Tim 
Chemistry
How much heat is given off when 12g of Al at 75 degrees Celsius is colled to 25 degrees Celsius?
asked by Jenny 
college algebra
use the rational zeros theorem to find all the real zeros of the polynomial function,. use the zeros to factor f over the real numbers. f(x)=11x^3x^2+11x1 please show all work
asked by ladybug 
chemistry
boron10 has an atomic number of 5. how many electrons are in this isotope? 0 electrons, 2 electrons, 5 electrons, 10 electrons. I think 10
asked by drew 
chemistry
Lithium6 has an atomic number of 3. How many electrons are in this isotope? A. 0 electrons B. 3 electrons C. 6 electrons D. 9 electrons I think C. 6
asked by drew 
precalccc
find all the real zeros and multiplicity of f(x)=x^468x^2+256
asked by Brittany 
Math Calculus
A cylinder with radius of 20 ft is being filled with water at a rate of 2000 ft^3/hour. Find the rate at which the height of the water is increasing.
asked by Puja 
physics, university
A length of wire has a radius of 3.00 x 103 m and a resistance of 0.200 ohms. When the potential difference across the wire is 10.0 volts, the electron drift speed is found to be 2.98 x104 m/s. On the basis of these data, calculate the density of free
asked by Stacey 
Chemistry
How much heat, in Kj, is required to melt 11.0g of ice, at 13.0 degrees C, and vaporize the H20, and rise the temperature of the steam to 114 degrees C. Need help. Anyone, please!
asked by Shelby 
physics
A 19 kg child is riding a 6.9 kg bike with a velocity of 5.2 m/s to the northwest. a)What is the total momentum of the child and the bike together?
asked by Shonna 
Test prep
solve: log8(w6)=2log8(w+15) note: the 8 is to be little at the bottom right corner of log
asked by Britt 
Physics
An 80 kg man climbs a 50 mhigh hill in 20 minutes. What is the average power in watts he expends climbing the hill?
asked by Anonymous 
ChemistryExplanation Please
How many valence electrons are in the following? (Remember to add an electron for each negative charge or to subtract one for each positive charge). ICl2− ONF CH4
asked by Yaw 
Real Estate Finance
The formula for calculating the down payment on an FHA loan for a property sold for $265,000 would have a down payment of $______.
asked by Anonymous 
MathII
Rectangle A and B are similar. The ratio of rectangle B's width to rectangle A's width is 3:2. Rectangle A has a length of 24 inches and a width of 16 inches. What is the perimeter of rectangle B?
asked by jezzaD. 
chemistry
A puncture in the tubing of a refrigerator can cause severe frosbite as chloroethane C2H5Cl, vaporizes. Use this thermochemical equation to calculate the heat absprbed when 23.6g of chloroethane vaporizes at its boiling point (9.66kj) C2H5Cl + 26.4kj arrow
asked by Ted 
Google Search
Dear all, If you do not understand a science, math, writing, grammar, history, etc. problem, you can easily find the explanation of the concept you are struggling in on the internet or Google.
asked by mathtaculator 
Physics
In a very busy offcampus eatery one chef sends a 241g broccolitomatopickleonionmushroom pizza sliding down the counter from left to right at 1.53 m/s. Almost simultaneously, the other chef launches a 321g veggieburgeronabun (with everything, but
asked by Kyle 
physics
A ball is thrown horizontally from the top of a building 17.6 m high. The ball strikes the ground at a point 67.7 m from the base of the building. The acceleration of gravity is 9.8 m/s^2 1. Find the time the ball is in motion. Answer in units of s. 2.
asked by Liz 
com 200 interpersonal comuncation
write a two page paper excluding title and reference pages about your thoughtson this article and your language style matching score.
asked by cathy 
Math
A plane will normally cover 52 km in 12 min in still air. On one trip she flew with the wind for 2.5 hr. returning, she still had 100 km to go after 3.5 hr. what was the wind speed?
asked by Kay 
English
Has anyone have to write a paper on greek mythology and dreams?
asked by Nicole 
psychological statistics
can someone please respond
asked by carla 
English 8R  help!!!!!
what's the definition for connotation is there a website that have a list of all 8th grade english vocab.
asked by Laruen 
algebra
a model rocket is 2in tall. if it was built with a scale of 1in :10ft, then how tall is the real rocket?
asked by taia 
Algebra
length of a rectangle is 5y more than twice its width and area of the rectangle is 42 yards ^2, find the dimensions
asked by Brian 
calculus
Find the derivative of g(x)=cos(107x)
asked by paul 
Physics
A certain spring has a spring constant of 165 N/m. A 20kg mass is attached to the end of the spring. While the mass is at the equilibrium position, it is given a velocity of 8m/s downward. What is the total energy of the system, and aacceleration of the
asked by Philip 
university, physics.
A length of wire has a radius of 3.00 ~ 103 m and a resistance of 0.200 ƒ¶. When the potential difference across the wire is 10.0 V, the electron drift speed is found to be 2.98 ~ 104 m/s. On the basis of these data, calculate the density of free
asked by Brette 
History
When the Arabs conquered much of the Middle East and north Africa, how did they treat nonMuslims? To what extent was there hostility between the different faiths, and when was the Islamic expansion welcome?
asked by Jill 
physics
what is the frequency of wavelength 5.5cm travelling at 2 a speed of 1.6 m\s?
asked by chad 
american history
which of the following was the primary cause of the balkan wars conducted during the cliton administration?
asked by mandy 
Human Resources
Consider the fact that during the past few years, many firms have laid off thousands of workers, frozen employee pay and eliminated or reduced bonuses. Yet at the same time many of these firms have retained "key employees" and CEOs by giving them huge
asked by Gina 
Trigonometry
Solve for the ambiguous triangle. 1. Given: A=45°; a=3; b=5 2. A=25°; a=3; b=6
asked by Jezrell 
chemistry
Gallium nitride (GaN) is a semiconductor with a bandgap Eg=3.2 eV. Calculate the absorption edge of GaN. Express your answer in units of m.
asked by selly 
gov't
Week 14 – Making Foreign and Military Policy 1.) Of the four types of politics outlined in chapter 13, which are exemplified in each of the following cases? a. Gayrights activists convince a city council to pass an ordinance outlawing discrimination
asked by Anonymous 
Physical Chemistry
"Liquids A and B, which have identical molar volumes, are mixed together in equal volumes to form a 75 mL mixture. The liquids are partially miscible and the mixture phase separates into an upper phase with a composition xA=0.45 and a lower phase with a
asked by Emily 
Algebra 1
Solve 7x/3 < 2
asked by Monica 
chemistry
Spectrophotometric analysis of commercial aspririn. If the number of moles of sodium salicylate are 8.675x10^6 what would be the number of moles of Iron (III) Salicylate complex and what would be its concentration. The volume of sodium salicylate used is
asked by Emma 
MATH
3 DIFFERENT IMPROPER FRACTIONS THAT ARE EQUAL TO 3
asked by MEME 
english
how do I create parallel construction for this sentence? To succeed in the new economy, workers will have to learn throughout their careers, adapt to changing circumstances, and selfmotivation will be needed.
asked by Anonymous 
social studys
1. What enabled people of northern Italy to sponsor learning? (1 point)Martin Luther's ideas a mild climate wealth from trade help from the Germany government 2. What did German leaders want during the Reformation? (1 point)to increase the pope's power to
asked by me 
health
provide a detailed description of mechanism involved in the formation and maintenance of the resting potential
asked by nana 
calculus
For y(x)=ln(3+x2), find y(6)
asked by rob 
math
rewrite the equation so that y is a function of x.then use the result to find y when x= 2,1,0,1 6x2y=10
asked by brittney 
Math Ms. Sue
What is the slope of the line that passes through (3/5,2)(6,2/9)? I don't even have a good guess at this one. Thanks.
asked by Debby 
3rd grade math
How can you use the multiplication facts for 3 to help fond the multiplication facts for 9?
asked by morgan 
Writing
Can you help me give some ideas about this topic why you have to vote, i have to give some reasons about that topic. Please help me. Thanks so much.
asked by Camilla Thythy 
Chemistry
What is the Oxidation number of O8O4?
asked by Jesenya 
TRIGONOMETRY ASAP PLEASE :3
Solve for the ambiguous triangle. 1. Given: A=45°; a=3; b=5 2. A=25°; a=3; b=6
asked by JEZRELL 
Chemistry
Name the majority charge carrier in the doped material. Holes Electrons Electronhole pairs The dopant ion
asked by selly 
english
I'm writing an essay and we have to write chose between two topics. Courtship and crossing the color line? Courtship means to marry right? But I'm having confusion understanding what crossing the color line means.. Does it mean a black passing off as a
asked by Blaze 
Grammar
Which sentence is correctly punctuated? A) Tom, !@#$%^&, and Harry each inherited one third of the estate. B) Tom, !@#$%^& and Harry each inherited one third of the estate. I answered A
asked by Marie 
maths
a cube of edge 10cm is completly inversed in a rectangular trough truck with height 40cm breadth 25cm containing water to a height of 30cm . what will be the height after the immersion of the cube ????
asked by tuhituhi 
social studies
Do blue whales have long white hair or black hair on their face?
asked by rfvv 
pyhsics
So I already got the answer for the first part: An airplane is flying in a horizontal circle at a speed of 102 m/s. The 80.0 kg pilot does not want the centripetal acceleration to exceed 6.18 times freefall acceleration. Find the minimum radius of the
asked by julie 
Intermediate Algebra
You have been requested to display your family portrait in the lobby of the new Hampton inn in west Jordan it portrait measures x inches one side. and the other side is 2" longer than the other. the frame that surrounds the portraits is 2 inches wide. You
asked by nicole 
Combining expressions
Debbie is selling tickets for a spaghetti dinner night. Adult tickets, a, are $10 and children tickets, c, are $5. Sixty percent of the total tickets sold will be given to a local charity. Write a simplified expression to represent how much money will go
asked by Anonymous 
psychological statistics
I was talking with someone about setting up an account and getting help with an assignment
asked by carla 
math
pretty stuck on this one, any help apreciated: the angular displacement (feta) of a shaft is given by feta= 1/2 (cos5t. Find the velcoity of the shaft w at t= 2s my apologies for the improper layout.
asked by Russ 
Physics
What is the max speed a car can go on a race track with a radius of 80 meters, the coefficient of friction between the tires and the road is .30
asked by D 
math
For y(x)=ln(3+x2), find y`(6) I keep getting 12 but it says that its the wrong answer, really stuck here
asked by Ravinder 
Math Ms. Sue
What is the slope of the line that passes through (12.5,3.2)(15.5,7.2)? I think the answer is: 10.4/3.5. Not sure on this one
asked by Tim 
math
Suppose e^y=sin(x+cosy) Find dy/dx using implicit differentiation
asked by Matt 
math
3yd= in
asked by apria 
calculus
how would i go about finding the tangent line to the curve of sqrt(1+4x^2y^2)3xy=18 with the points (3,6)?
asked by Anonymous 
Grammar
Which sentence is correctly punctuated? A) Jane Doe, the teacher, is dead. B) Jane Doe the teacher is dead. I answered A
asked by Marie 
Math
What are 3/8, 5/6, and 1/2 in order from least to greatest.
asked by Rachel 
ssc maths
2 xsquare y 3 xsquare+ 4 y=2010
asked by emani 
Srinivas
the number of triangles having a fixe4d base of "a"units and area 2009square units is
asked by emani 
chemistry
the idea of the atom was first proposed by john dalton. true or false false
asked by drew 
Psychology
What country has the best system for dealing with mental health issues?
asked by Anonymous 
math
find the equation, in function form, of athe line that passes through the points(1/2,3) and (7/6,5/9)
asked by sam 
math
The cost of rug was increase by 23%, and as a result now cost $553.50. What was the original price of the rug?
asked by emmy 
math
y=3.0,2.2,1.9,1.6,1.4,1.2,1.1,1.0,0.88,0.83 x= 2,3,4,5,6,7,8,9,10,11 how do you find the equation curve of best fit with these numbers
asked by Unknown Girl 
algebra
What is (2)^2 (3)^2
asked by jamie 
Math
(0,0) (20,7.2) (40,12.8) (60,16.8) (80,19.2) (100,20.0) (120,19.2) (140,16.8) (160,12.8) how do you find the equation curve of best fit with these numbers
asked by G 
Math Ms. Sue
What is the slope of the line that passes through (3/5,2)(6,2/9)? I don't even have a good guess at this one. Thanks.
asked by Tim 
Physics
An 80 kg man climbs a 50 mhigh hill in 20 minutes. What is the average power in watts he expends climbing the hill?
asked by Mark 
math
xy=2 and dy/dt=4. Find dx/dt when x=1.
asked by Anonymous 
Social studies
In the old days, people had to make the ropes tight before they went to bed. Do you know the reason why they had to make the ropes tight? Is that because of the shape of the bed in the old days?
asked by rfvv 
Precalc
how do you find x in 7=log(x/10^12)
asked by Rebekah 
Real Estate Finance
A borrower wants to qualify for a $185,000 FHA insured loan at 4% interest for 30 years with payments of $833.21. What would be the upfront MIP cost:$_____
asked by Anonymous 
Math
What is the slope of the line that passes through (3/5,2)(6,2/9)? I don't even have a good guess at this one. Thanks.
asked by Tim 
Math
Create 4 proportions that will work for the following scenario: If the scale is 3.5 in = 8 ft and the drawing measures 6 in, what is the actual distance?
asked by ariana 
chem
What is the final temperature (degrees celcius) of 1.36g of water with an initial temperature of 23.0degrees celcius after 6.420J of heat is added to it?
asked by Chironjit 
Physics HARD
If an objects vbr is 6.32N/sc what is its mass? I'm so stuck...:((((
asked by Mikey 
EarthSpace Science
what factors might affect the length of the rays after an impact?
asked by Jade 
math
rewrite the equation so that y is a function of x.then use the result to find y when x= 2,1,0,1 2y3x16=0
asked by brittney 
counting up method
how do you do the counting up method
asked by julia 
chemistry
what is evidence of exothermic rection?
asked by maria 
English
1. They move only 2 meters an hour. 2. They move only for 2 meters an hour. 3. They move for only 2 meters an hour. (Are all grammatical?)
asked by rfvv 
Social Studies
Which one is the longest among Royal Pythons, Reticulate Pythons, and Anacondas?
asked by rfvv 
algebra
finding slope from an equation y = 5/2x5
asked by anonymous 
srinvas
solve ;2 xsquare y3 xsquare+4 y=2010
asked by emani 
math
how do you find ratios? and then how do you explain how you got it
asked by dude 
algebra 1
how do you add equivalent fractions such as 7/20+3/9
asked by jashai shavers 
math
it is less the 64 it has 5 ones. what is the secret number not sure but is it 50?
asked by Anonymous 
math
3yd= in
asked by apria