Questions Asked on
October 23, 2012

chemistry
Complete and balance the molecular equation, including phases, for the reaction of aqueous ammonium bromide, NH4Br, and aqueous lead(II) acetate, Pb(C2H3O2). Enter the balanced net ionic equation, including phases, for this reaction.
asked by Kelly 
Physics
a small rock with mass 0.20 kg is released from rest at point A which is at the top edge of a large, hemispherical bowl with radius R = .5m. assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume
asked by Frankie 
Math
From a boat on the lake, the angle of elevation to the top of a cliff is 26°35'. If the base of the cliff is 85 feet from the boat, how high is the cliff (to the nearest foot)? A. 56 feet B. 43 feet C. 53 feet D. 46 feet I HAVE BEEN WORKING ON THIS
asked by Ashley 
Physics Please help !!
A single conservative force = (6.0x  12) N where x is in meters, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 23 J at x = 0. (a) Write an expression for U as a function of x, with U in
asked by member of physics 
math
A pair of dice is rolled once. suppose you lose $9 if the dice sum to 9 and win $11 if the dice sum to 4 or 6. how much should you win or lose if any other number turns up in order for the game to be fair?
asked by Maddy 
Math Please help!!
2. Mrs. Whimsey’s class is having a pizza party. If there are 16 students and 4 pizzas cut into 8 slices, what answer choice represents the fraction of one pizza each student receives? a) 1/3 b)1/16 c)1/4 d)1/8 Please help :)
asked by Esther 
math
Harold says" to find 6x8 , i can use the facts for 5x4and 1x4." do you agree? explain.
asked by Janessa 
Gen Chem
ignition of mgnh4po4*6h2o produces nh3, h2o and magnesium pyrophosphate, Mg2P2O7. complete and balance the equation for this reaction. If 5.00 g of MgNH4PO4*6H2O are ignited, how many grams of Mg2P2O7 would be formed? 2MgNH4PO4*6H2O(g)>
asked by Andrea 
CHEMISTRY
Calculate the change in entropy that occurs when 17.68 g of ice at 12.7°C is placed in 54.05 g of water at 100.0°C in a perfectly insulated vessel. Assume that the molar heat capacities for H2O(s) and H2O(l) are 37.5 J K1 mol1 and 75.3 J K1 mol1,
asked by Sarah 
Physics
Determine the normal force for a laundry basket with a mass of 4.7 kg in each of the following situations (a) at rest on a horizontal surface _________ N (b) at rest on a ramp inclined at 12° above the horizontal _______ N (c) at rest on a ramp inclined
asked by Dakota 
English
Why do you think Sir Gawain flinched when the Green Knight brought his ax down, but the Green Knight did not flinch when he was in the same position? The prompt is referring to the long poem "Sir Gawain and the Green Knight" I think Sir Gawain flinched
asked by Beth 
Please help with math!!
Ted Andrews bought 15 shares of Clark Company stock at $14.875. He sold them a month later at $20.375. What was his profit? Please help!! :) Thanks to everyone who helps! a)$6.50 b)$49.50 c)$80.50 d)$82.50
asked by Esther 
Calc
Air pressure at sea level is 30 inches of mercury. At an altitude of h feet above the, air pressure, P, in inches of mercury, is given by, P =30e^(3.23x105h) a)Find th equation of the tangent line at h=0. b)A rule of thumb is given by travelers is that
asked by Andy 
Physics
A 7900 helicopter accelerates upward at 0.90 while lifting a 1100 frame at a construction site. A) What is the lift force exerted by the air on the helicopter rotors? B)What is the tension in the cable (ignore its mass) that connects the frame to the
asked by Freddy 
Science
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Bella 
Chemistry
For the following reaction, 3.93 grams of carbon tetrachloride are mixed with excess methane (CH4). The reaction yields 4.10 grams of dichloromethane (CH2Cl2). methane (CH4) (g) + carbon tetrachloride (g) dichloromethane (CH2Cl2) (g) What is the
asked by Kaitlin 
chem 111
the color change at the endpoint should persist for 30 seconds. explain why the time lapse is a good titration technique.
asked by ashley 
Physics
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? The length of the rod will become exactly half of its original value. The length of the rod remains the same.
asked by Laurie 
Physics
A circular loop with 30 turns and area of 0.25 m2 rotates at 100 rad/s. The axis of rotation of the loop is perpendicular to the direction of the magnetic field of 0.04 Tesla. What is the maximum emf induced in the loop? 15 V 30 V 45 V 60 V I got 15 V but
asked by Liam 
math
Compute the number of vinyl tiles, measuring 10 in. each side, needed to tile a kitchen measuring 20ft. by 16ft. _____tiles
asked by Ashley 
Precalculus
If p(x) is a cubic polynomial such that p(0) = 0, P(2) = 4 and P(x) is positive only when x > 4 find p(x).
asked by Sam 
math
ron is tiling a countertop. he needs to place 54 square tiles in each of 8 rows to cover the counter. he,wants to randomly place 8 groups of four blue tiles each and have the rest of the tiles to be white. how many white tiles will ron.need?choices
asked by stephie 
calculus
Two cars start from the same point at the same time. One travels north at 25 mph, and the other travels east at 60 mph. How fast is the distance between them increasing at the end of 1 hr? Find D after 1 Hr, solve D^2=25^2+ 60^2
asked by Allison 
physics
A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless
asked by John 
chemistry...
knowing that one mole of KHP, C8H5O4K, reacts with one mole of NaOH, what mass of KHP is required to neutralized 30.0mL of the 0.10 M NaOH solution?
asked by tierra 
English
In "The Canterbury Tales" Chaucer uses the pilgrimage primarily as a device to ___________. A.emphasize the characters' religious aspirations B.frame the stories told by individual characters C.describe the rigors of medieval life D.create a vivid and
asked by Beth 
economics
What does the curved line represent in the graph?
asked by terra 
chemistry
how many milliliters of 0.250 M KMnO4 are needed to react with 3.55 grams of iron(II)sulfate, FeSO4? the reaction is as follows: 10FeSO4(aq)+2KMnO4(aq)+8H2SO4(aq)¨ 5Fe2(SO4)3(aq)+2MnSO4(aq)+K2SO4(aq)+8H2O(l)
asked by robert 
Physics
The wavelength of the electromagnetic waves is 200 nm. Which of following regions does it belong to? visible light region ultra violet region infrared region x ray region Wouldn't it fall into the UV Region? Just wanna confirm
asked by Anonymous 
finite mathematics
Find the present value of the ordinary annuity. Please round the answer to the nearest cent.$2,000 per semiannual period for 7 yr at 12%/year compounded semiannually
asked by Anonymous 
chemistry
What mass of sodium bicarbonate reacts with 225 mL of 6.00 M HCl?
asked by Petreg 
Social studies
I am learning about scarcity in my SS 6th grade and I am unsure about this question. Which sentence best tells the effect of scarcity on economics? A. Scarcity shapes decisions about how to distribute goods B. because resources are scarce consumers buy
asked by Larry 
Calculus
A woman 5 ft tall walks at the rate of 5.5 ft/sec away from a streetlight that is 16 ft above the ground. At what rate is the tip of her shadow moving?
asked by Anonymous 
Chemistry
Which of the following substances are likely to be soluble in water? A)ZnS b)Au2(CO3)3 C )PbCL2 d) MnO2
asked by Lynn 
chemistry
A 3.75G SAMPLE OF IRON ORE IS TRANSFORMED TO A SOLUTION OF IRON(II)SULFATE, FeSO4,AND THIS SOLUTION IS TITRATED WITH 0.150 M K2Cr2O7. IF IT REQUIRES 43.7 mL OF POTASSIUM DICHROMATE SOLUTION TO TITRATE THE IRON(II)SULFATE SOLUTION, WHAT IS THE PERCENTAGE
asked by malissa 
Managerial Econ
You are the manager of a monopoly, and your demand and cost functions are given by P = 300 – 2.5Q and C(Q)=1000 + 2.5Q2. a.At what price and quantity are firm’s profits maximized?
asked by Turner 
Please answer two math questions!!!
10. From the 2010 census data, the population of Texas was about 2.5 x 107 people. Florida’s population was about 1.9 x 107. Idaho’s population was about 1.6 x 106. Which of the following statements is true? a)Idaho has a larger population than
asked by Esther 
chemistry
If 0.500 mol NaN3 react, what mass in grams of nitrogen would result?
asked by Ariana 
Algebra 2 Helpp :(
QUESTIONS (vvv) (1) Solve the system by subsitution 2x + y = 11 3  4y = 11 (2) Solve the system by elimination 2x + 6 = 12 5x  5y = 10 (3) What is the solution of the following system? 3x  2y = 12 9x + 6y = 9 (4) What is the solution of the
asked by Robert 
Math!!
If there is 1/6 of a cake and Mitchell only wants 3/12 of it, how much of the cake does he want? Please help!! a)1/6 b)4/18 c)1/24 d)3/18
asked by Esther 
Physics helppp
Which of the following statements are TRUE? Select all that apply. An isolated system is one in which objects inside the system are not influenced by any forces from outside the system. The mechanical energy of a pendulum bob is maximized at the bottom of
asked by member of physics 
Chemistry
Microwave ovens emit microwave energy with a wavelength of 12.5 cm. What is the energy of exactly one photon of this microwave radiation?
asked by Myah 
PHYSICS H
suppose an elephant and a feather fall from a skyscraper. in the presence of air resistance, the elephant would fall faster because...list all that apply. a) acceleration of gravity is greatest for the elephant b) elephant experiences a smaller air resis.
asked by kyle 
math
sally has a bag with red,blue, and green marbles. She has twice as many blue marbles as red marbles. She has 5 times as many green marbles as red marbles. Altogether she has 24 marbles. How many of each color marble does she have? Explain how you found
asked by Anonymous 
Physics
Two groups of canoeists meet in the middle of a lake. After a brief visit, a person in canoe 1 pushes on canoe 2 to separate the canoes. Suppose the speeds of the two canoes after they are pushed apart are 0.65 m/s for canoe 1 and 0.47 m/s for canoe 2. If
asked by RoCu 
Math
One third of the students in mrs. hayko's class walk to school. Of the students who do not walk, fourfifths take the bus. a) what fraction of the students in Mrs. Hayko's class take the bus to school? b) How many students might there be in her class?
asked by Cherie 
Physics
When the pendulum bob reaches the mean position, the net force acting on it is zero. Why then does it swing past the mean position?
asked by Confused 
physics
A box slides down a plane 8 m long that is inclined at an angle of 30 degrees with the horizontal. If the box starts from rest and u = 0.25, find a.) the acceleration of the box, b.) it's velocity at the bottom of the plane, and c.) the time required for
asked by Alex 
physics
2. When a 625g mass is attached to a vertical spring, the spring stretches by 16cm. How much mass must be attached to the spring to result in a .78s period of oscillation?
asked by Quita 
Physics
The drawing shows a collision between two pucks on an airhockey table. Puck A has a mass of 0.025 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.060 kg and is initially at rest. The
asked by Sam 
Information Technology
Develop an algorithm, flow chart and pseudocode that accept as input three unit test scores and a project score for seven students. The algorithm, flow chart and pseudocode should accept seven examination scores. The students's overall score comprised of
asked by Sophia 
Math
A cattle train left Miami and traveled toward New York. 14 hours later a diesel train left traveling at 45km/h in and effort to catch up to the cattle train. After traveling for four hours the diesel train finally caught up. What was the cattle train's
asked by Bob 
Physics
2 people, each with a mass of 70 kg, are wearing inline skates and are holding opposite ends of a 15 m rope. One person pulls forward on the rope by moving hand over hand and gradually reeling in more of the rope. In doing so, he exerts a force of 35 N
asked by Nur 
Algebra 1
Two fewer than a number doubled is the same as the number decreased by 38. Find the number. If n is "the number," which equation could be used to solve for the number?
asked by Monica 
chemistry
Which of the following solutions will not form a precipitate when added to 0.10M NaOH? a) 0.10 M MgBr2 b) 0.10 M NH4Br c) 0.10 M FeCL2
asked by lynn 
Physics
Find the energy stored in the solid flywheel of mass 8.0×104 and radius 1.8 when it's rotating at 290
asked by John 
Precalculus
(cosxcotx/secx+tanx)+(sinx/secxtanx)
asked by Milak 
physics
A 83kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.76 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.8 s,
asked by ari 
English
1. What do you do?  I am a student. 2. What does your father do?  He is an architect. 3. What does your mother do?  She is an accountant. 4. What do you want to be in the future?  I want to be a pharmacist. 5. Why do you want to be a pharmacist?  I
asked by rfvv 
Physics
A car with its brakes locked will remain stationary on an inclined plane of dry concrete when the plane is at an angle of less than 45 degrees with the horizontal. What is the coefficients of static friction of rubber tires on dry concrete
asked by Anon 
physics
What happens to the atomic number of the daughter nucleus if it is formed after the emission of the beta particle? The atomic number remains the same. The atomic number increases by two. The atomic number increases by one. The atomic number decreases by
asked by eothwoie 
physics
A supersonic jet flying at 137 m/s is accelerated uniformly at the rate of 23.1 m/s2 for 20.0 s. (a) What is its final velocity? (b) The speed of sound in air is 331 m/s. How many times the speed of sound is the plane's final speed?
asked by miranda 
math 2
pedro gets 8 hours of sleep each night. how many hours does pedro sleep in a yeat with 365 days? please solve the problem?
asked by stephie 
Physics
How much work did the movers do horizontally pushing a 160kg crate 10.3m across a rough floor without acceleration, if the coefficient of friction was 0.50?
asked by Lisa 
algebra
Of 480 consumers polled, some purchase ice cream, some purchase frozen yogurt, and some purchase both. If 260 people polled purchase ice cream and 200 purchase both ice cream and frozen yogurt, how many people purchase frozen yogurt?
asked by Anna64 
Physics
a driver sees a horse on the road and applies the brakes so hard that they lock and the car skids to a stop in 24 m. the road is level and the coefficient of kinetic friction between the tires and the road is 0.7. How fast was the car going when the brakes
asked by Colin 
Government
candidates for president are not usually drawn to the office because of salary. why do you think these people run for the office?
asked by Anonymous 
Physics
A metallic surface emits electrons when it is irradiated with a yellow light source of power 25 Watts. What happens to the emission of the electrons if one yellow light source is replaced by two violet light sources of same power? The number of emission of
asked by Meep 
Calculus
An open topped cylinder has a volume of 125 cubic inches. Express the surface area of the cylinder as a function of its radius.
asked by Anonymous 
Chemistry
Which of the following best describes the difference between a mixture and a pure substance? A. A mixture is made up of more than one type of atom; a pure substance is made up of only one type of atom. B. A mixture has the same properties throughout; a
asked by Anonymous 
Chemistry
The Cu2+ ions in this experiment are produced by the reaction of 1.0g of copper. Information already found out .016 mol Cu2+ produced Overall reaction is Cu2+(aq)+Cl(aq)+Cu(s)=2 CuCl(s) Maximum mass of CuCl that can be prepared from the reaction sequence
asked by Julie 
physics
An engineer must design a runway to accommodate airplanes that must reach a ground velocity of 60 m/s before they can take off. These planes are capable of being accelerated uniformly at the rate of 2.1 m/s2. (a) How long will it take the planes to reach
asked by miranda 
Physics
Astronomers can calculate the mass of a planet by using the orbital parameters of one of its moons. Consider a hypothetical planet, which has a hypothetical moon that orbits the planet in a roughly circular orbit with a radius of 3.95*10^8 m. The moon
asked by Emily 
chemistry
Which of the following solutions will not form a precipitate when added to 0.10M NaOH? a)0.10 M MgBr2 b) 0.10 M NH4Br c) 0.10 M FeCL2
asked by lynn 
math
find the interest rate to the nearest hundredth of a percent that will produce $2500, if $2000 is left at interest compounded semiannually for 4.5 year
asked by amber 
Physics
An Earth satellite moves in a circular orbit at a speed of 5800 m/s. a)What is the radius of the satellite's orbit? b) What is the period of the satellites orbit in hours?
asked by Natalie 
Physics
A 3.6 diameter merrygoround is rotating freely with an angular velocity of 0.73 . Its total moment of inertia is 1600 . Four people standing on the ground, each of mass 60 , suddenly step onto the edge of the merrygoround.What is the angular velocity
asked by Rosanna 
physics
Block 1, of mass1 = 0.550kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass2 , as shown. For an angle of = 30.0 and a coefficient of kinetic friction between block 2 and the plane of = 0.300mu(kinetic friction), an
asked by Samantha 
physics
A ferry is crossing a river. The ferry is headed due north with a speed of 1.1 m/s relative to the water and the river’s velocity is 4.2 m/s to the east.Find the direction in which the ferry is moving (measured from due east, with coun terclockwise
asked by dylan 
Physics
A dentist causes the bit of a highspeed drill to accelerate from an angular speed of 1.20x10^4 rad/s to an angular speed of 3.14x10^4 rad/s. In the process, the bit turns through 1.92x10^4 rad. Assuming a constant angular acceleration, how long would it
asked by Sam 
Physics
The following four lenses are placed together in close contact. Find the focal length of the combination. Lens 1 F'= +200mm Lens 2 F'= 125mm Lens 3 F'= 400mm Lens 4 F'= +142.9mm
asked by Help please 
physics
For a given velocity of projection in a projectile motion, the maximum horizontal distance is possible only at ө = 45°. Substantiate your answer with mathematical support. 20.5 m/s
asked by tre 
art need help
1. This is the study of beauty and art. (1 point)ethics harmony unity aesthetics 2. This view refers to how realistic the subject is in a work of art. (1 point)object view critical view subject view photographic view 3. This view refers to how clearly an
asked by all about me 
Chemistry
Assuming that the gases are ideal, calculate the amount of work done (in joules) in the following reaction. Is work done on or by the system? A reaction in the Mond process for purfying nickel(0) tetracarbonyl at 50100 degrees Celsius. Assume one mole of
asked by Heather 
physics
Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 2.9 km/s, moving it through only 1.6 cm. (a) What acceleration does the gun give this
asked by miranda 
Physics
In an experiment conducted using the Young's doubleslit apparatus, the separation between the slits is 20 µm. A firstorder constructive interference fringe appears at an angle of 2.5o from the zeroth order (central) fringe. A. What wavelength of light
asked by Flux 
Physics
A 5.57kg object passes through the origin at time t = 0 such that its x component of velocity is 5.25 m/s and its y component of velocity is 3.15 m/s. (a) What is the kinetic energy of the object at this time? (b) At a later time t = 2.00 s, the particle
asked by mike 
Science
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Edward 
Abnormal Psychology
Though similar in their concerns about eating and gaining weight, individuals with bulimia differ from individuals with anorexia in that they _______, while those with anorexia don’t/aren’t. A. binge and purge B. are within 10% of their normal weight
asked by Felicia 
algebra
A cookie company uses one cup of sugar for every cookies it makes. Let represent the total number of cups of sugar used, and let represent the number of cookies made. Write an equation relating to , and then graph your equation using the axes below.
asked by Anonymous 
Precalculus
Rewrite 2sinx/(cotx+cscx) as an expression that doesn't involve a fraction.
asked by Milak 
pltw
How do you envision applying your sketching skills in college?
asked by meee 
Physics
A 7900 helicopter accelerates upward at 0.90 while lifting a 1100 frame at a construction site. A) What is the lift force exerted by the air on the helicopter rotors? B)What is the tension in the cable (ignore its mass) that connects the frame to the
asked by Freddy 
Algebra 1
EAch set of ordered pairs represents a function. Write a rule that represents the function (2,10),(4,20),(5,25),(7,35),(9,45)
asked by Dorianna 
Abnormal Psychology
For some teens, particularly girls, excessive efforts to control eating may be a misguided effort to A. punish parents. B. manage the stress and physical changes that confront them as they pass into adolescence. C. punish themselves. D. regress back to the
asked by Felicia 
calculus
A man starts walking north at 4ft/s from a point P. Five minutes later a woman starts walking south at 5ft/s from a point 500 ft due east of P. At what rate are the people moving apart 15 min after the woman starts walking? I'm confused about the diagram
asked by asdf 
CHEMISTRY
At what temp do hydrogen molecules, H2, have the same rms speed as nitrogen molecules, N2, at 455 C? At what temperature do hydrogen molecules have the same average kinetic energy?
asked by Ted 
Science Fair
Hi, my question is are part 1,2, and 3 different ways you can do the project? There are three parts. Each part should take less than 1 hour. In Part 1, you will stare at a colored object for various amounts of time, then measure how long it takes for the
asked by Unknown 
Abnormal Psychology
Sleep deprivation impairs functioning of the A. endocrine system. C. occipital lobe. B. prefrontal cortex. D. left temporal lobe. I put D
asked by Felicia 
Physics
The third harmonic of a guitar string has a frequency of 170 Hz. What is the length of the guitar string if the speed of the waves on the string is 125 m/s? 1.103 m 2.206 m 0.368 m 2.040 m
asked by Meep 
English
from Sir Gawain and the Green Knight Why didn’t the Green Knight want to duel? A.He was a peaceful knight. B.He would easily win. C.He did not bring a weapon. D.He never fought at Christmas. I think the answer is either A or B. Thanks for the help.
asked by Anon 
Chemistry
A sample of the compound prepared in this experiment, weighing .1021g, is dissolved in HNO3 and diluted to a volume of 100mL. A 10mL aliquot of that solution is mixed with 10mL 6 M NH3. The [Cu(NH3)4 2+] in the resulting solution is 5.16x10^3 M. How many
asked by annie 
2 English questions
What is the old woman’s perspective on poverty as shown in these lines? Poverty is, though wanting an estate, / A kind of wealth that none calumniate. / Poverty, often, when the heart is lowly, / Brings one to God and teaches what is holy, / Gives
asked by Beth 
Science
Choose an ecosystem to research with regard to abiotic factors and how organisms in that particular ecosystem depend on those abiotic factors. Write a paragraph that describes the ecosystem that you selected and how organisms compete for abiotic factors
asked by S 
Chemistry
At what temp do hydrogen molecules, H2, have the same rms speed as nitrogen molecules, N2, at 455 C? At what temperature do hydrogen molecules have the same average kinetic energy?
asked by Ted 
physics
You are explaining to a friend why the crew of the International Space Station feels weightless while orbiting the Earth. Your friend responds that he thought gravity was just a lot weaker up there. Show that it isn’t so by calculating the acceleration
asked by paige 
Organic Chemistry
what is the major product of a reaction with 1butene and Br2 in water?
asked by DJ 
Science
How many calories of heat are required to change 1 gram of ice at 0°C to liquid water at 0°C?
asked by Jodie 
Physics
What is the wavelength of visible light of 6 x 1014 Hz frequency? 500 nm 400 nm 4000 nm 4 nm
asked by Jiskha 
math
Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien Tshirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once
asked by Roseanne 
Chem
What mass of lithium (in g) is required to react completely with 58.3 mL of N2 gas at STP?
asked by Lee 
math
how could you use 5x6=30 to find the product of 6x6
asked by c. j. 
I.E.D
How do you envision applying your sketching skills in other classes?
asked by meee 
Math
On a scale 1¾ inches represents 50 miles. How many miles are represented by 7 inches?
asked by Losa 
Precalculus
Rewrite cotx/(1+sinx) as an expression that does not involve a fraction.
asked by Anonymous 
Physics
A cannonball is fired with a velocity of 200 m/s at an angle of 25 degrees above the ground. After the total flight of 45.6 seconds, the cannonball returns to the ground. Calculate: the initial horizontal and vertical components of the velocity, the
asked by Anne 
college chemistry
A sample of helium occupies 1521 mL at 719 mmHg. Assume that the temperature is held constant and determine a) the volume of the helium at mmHg. b)the pressure, in mmHg, if the volume is changed to 315mL
asked by Haley 
Physics
A photocell shows photoelectric effect when green light shines on it. Which of the following is correct if a green light is replaced by a blue light? Electron emission would get stopped. Electrons are emitted with more velocity. Electrons are emitted with
asked by Tyler 
physics college
A lamp has a mass of 10kg and is supported by two wires that make an angle of 35 degrees between them. Find the tension in each wire?
asked by Gee 
Physics
A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 38.8 m/s. At the same time, it has a horizontal velocity of 54.3 m/s.At what speed does the vehicle move along its descent path
asked by Erin 
chemistry
For a particular isomer of C8H18, the following reaction produces 5108.7 kJ of heat per mole of C8H18(g) consumed, under standard conditions.
asked by ;k;k 
physics
An archer shoots an arrow horizontally at a target 13m away. The arrow is aimed directly at the center of the target, but it hits 57cm lower. What is the initial velocity?
asked by Courtney 
Math
The first floor apartments in Jenna's building are numbered 100 to 110. How many apartments on that floor are a prime number? What are those apartment numbers?
asked by Shion 
Physics
The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 10 Earth years. a) What is the asteroid's orbital radius? b)What is the asteroid's orbital speed?
asked by Caitlin 
CHEMISTRY: URGENT
24cm^3 of a mixture of methane and ethane were exploded with 90cm^3 of oxygen. After cooling to RTP the volume of gases was noted and it decreased by 32cm^3 when treated with KOH. Calculate the composition of the mixture.
asked by LC 
physics
A source of light and a screen lie in the same plane, 3 metres in front of a plane mirror, the mirror surface being parallel with the screen. If the mirror is rotated through 10degrees, how far will the patch of light mves across the screen?
asked by Need help please! 
Calculus
find the points on the curve x^2+xy+y^2=7 (a) where the tangent is parallel to the xaxis and (b) where the tangent is parallel to the yaxis. In the latter case, dy⁄dx is not defined, but dx⁄dy is. What value does dx⁄dy have at these points?
asked by toma 
math
Mrs. Daniels pays $324 for a handbag and 3 pairs of shoes. The handbag costs half as much as the 3 pairs of shoes combined. find the cost of the handbag
asked by Raishon 
english, possessive nouns
Directions: Wrie each sentence. Change the underlined phrase to show possession. The honesty of children is refreshing. The honesty of children is the underline part of the phrase.
asked by robin 
math
how to explain 0.26 and 0.260 are same
asked by sue 
physics
A camel sets out to cross the desert, which is 49.8 km wide in the northsouth direction. The camel walks at the uniform speed 2.64 km/hr along a straight line in the direction 50.1 north of East (only the camel knows why he chose that particular
asked by Anonymous 
Physics
1. A rescue plane flying horizontally at an altitude of 500 m and velocity of 300 m\s east drops a food supply packet to plane crash survivors on the ground. The packet falls freely to the ground without a parachute. Assume that the weather is perfect. a.
asked by Shannon 
Abnormal Psychology
Which of the following effects is least likely to occur when an individual is malnourished? A. A loss of circadian rhythm B. A decrease in the release of growth hormone C. Dermatological changes D. Lethargy, apathy, and depression C was my answer
asked by Felicia 
Physics
A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor? 0.73 Tesla 6.60 Tesla 0.34 Tesla 0.61 Tesla
asked by Anonymous 
Math
Earth has a new surface of 1.97x10^8 square miles. A new planet has a surface area 13 times the surface area of Earth. What is the surface area of the new planet? Do I multiply 1.97x13 or do I multiply 13x10^8? that's what i'm confused about.
asked by River Williams 
Math
403n=23 what is n? 2/36h=13/6 what is h? write as a equation,then solve. the quotient of a number and 2, minus 9, is 14 a number decreased by 7 and then divided by 5 is 13 the sum of 15 and 7 times a number is 99
asked by Maryam :) 
Precalc
Rewrite cot(^2)xcosx/(cscx1) as an expression that doesn't involve a fraction.
asked by Sophia 
math
describe the interval you would use for a bar graph if the data rangers from 12 to 39 units.
asked by Anonymous 
math
what is the fact family for 31?
asked by Janiya 
Math
Andy has 6 dimes and 10 nickels in his pocket. If he draws two coins without replacing the first coin, what is the probability of drawing a nickel and then a dime? A ¼ B 15/64 C 1/60 D 3/5
asked by Anonymous 
physics
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 950 N and the drag force has a magnitude of 1100 N.
asked by jill 
CHEMISTRY
24cm^3 of a mixture of methane and ethane were exploded with 90cm^3 of oxygen. After cooling to RTP the volume of gases was noted and it decreased by 32cm^3 when treated with KOH. Calculate the composition of the mixture.
asked by LC 
Physics
A skier stands on a 5 degree slope . if the coefficient of static friction is 0.1, does the skier start to slide?
asked by Ridley Scott 
Physics
The wheel is attached to an electric generator and the rotation rate drops from 290 to 230 in 3.5 . What is the average power output?
asked by John 
Intermediate algebra
If a ball is thrown vertically upward from the ground, with an initial velocity of 64 ft/s, it's height h after t seconds is given by h=16t^2+64t how long does it take the ball to return to the ground?
asked by Help now!! 
AP PHYSICS
A 25g bullet is fired with a velocity of 200m/s. If the gun from which the bullet is fired has a mass of 3.5kg,what is the recoil velocity? PLEASE HELP ME.
asked by BOOKER PERRY 
Math
Suppose that a car rental agency gave you the following choices. Option A $30 per day plus 40¢ per mile Option B flat $50 per day (a) Write equations for cost per day c for options A and B. (Use m for distance in miles.) c = $ (option A) c = $ (option B)
asked by Ms. Jackie 
math
find the perimeter of a triangle whose vertices are the followinf specified points in the plane? (9,1)(9,7)and(4,3)
asked by LeTaira 
physics
A 50.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 27.0 m/s. If the player was moving upward with a speed of 2.80 m/s just before impact. (a) What will be the speed of the ball
asked by Anonymous 
chemistry
WHAT IS THE VOLUME IN MILLILITERS OF 0.100 SULFURIC ACID CONTAINING 0.949 GRAMS H2SO4
asked by ROBERT 
Modern world studies
Write a short paragraph that traces the rise of japan from an isolated society to major industrial and imperial power.
asked by Jazz 
7th grade Math
can someone please check this for me. Be sure to round to the nearest hundred. 1) 6 eggs in 7 days 2) 8 batteries in 3 months 3) 122 patients in 4 weeks 4) $8.43 for 3 pounds
asked by gangnam style :o 
Math
What part of the school population likes basketball,baseball,or football? How much larger is this then the part of the student population that prefers soccer? Football 3/12 Basketball 4/12 Soccer 3/12 Baseball 2/2 Answer:1/2? Simplify the fraction if
asked by Jerald 
trig
Use an addition or subtraction formula to simplify the expression: tan(2−u)=cot(f(u)).
asked by Anonymous 
AP Chem
(MnO40 + (C2O4)2 + H+ = CO2 + H2O + ? OR (MnO4) + (C2O4)2+ OH=CO2 n+ H2O +? Can somebody please help me predict the products? I can balance it i just need help determining what to balance.
asked by Colin 
economics
What gives the U.S. government the right to collect taxes?
asked by terra 
stats
For a normal population with µ = 100 and σ = 20: 1. What is the probability of a particular score being greater than 110? 2. What is the probability of a particular score being less than 50?
asked by Komal 
Finance
Heinz Corporation bonds carry a coupon of 8% and will mature in 5 years at $1,000. Newly issued 5year bonds with similar characteristics are yielding 4%. Calculate today's market price of the Heinz bond. Compute your answer, submit all your work, then
asked by Jazmine 
CHEMISTRY
A FALSK CONTAINS 49.8 mL OF 0.150 CALCIUM HYDROXIDE. HOW MANY MILLILITERS OF 0.500 SODIUM CARBONATE ARE REQUIRED TO REACT COMPLETELY WITH THE CALCIUM HYDROXIDE IN THE FOLLOWING REACTION? Na2CO3(aq)+ Ca(OH)2(aq)¨CaCO3(s)+2NaOH(aq)
asked by HAMZA 
Physics
If you know the frequency of any form of electromagnetic radiation, you can determine its wavelength as for all electromagnetic radiation: Frequency is directly proportional to speed. Frequency is inversely proportional to wavelength. Wavelength is
asked by Fail 
Chemistry
Can someone please explain this problem to me step by step pleaseeeeeee? In the following acid—base neutralization reaction HNO3 (aq)+ KOH (aq)KNO3(aq) + H2O(I) What is the molarity (M) of an HNO3 solution if 50.0ml is needed to react with 25.0ml of
asked by Tasha 
physics
a ball of mass of 4kg,of density 4000kg/m3 is completely immersed in water of density 1000kg/m3.find the force of buoyancy.[g=10m/s2]
asked by keerthiga 
pltw
What is a technical sketch? What is an artistic sketch? How are the two similar and how are they different?
asked by meee 
Math
To convert a temperature in degrees Celsius to degrees Fahrenheit multiply the Celsius temperature by 9/5 and then add 32 F Is a temperature in degrees Celsius proportional to its equivalent temperature in degrees Fahrenheit.
asked by Ashely 
Managerial Econ
You are the manager of a firm which produces according to the cost function C(Q) = 75+5Q2. Determine the profit maximizing output and price and the level of profits
asked by Turner 
Abnormal Psychology
Arousal parasomnias are typically not characterized by A. difficulty being aroused. B. mental confusion and disorientation when awakened. C. extreme reactivity to external stimuli. D. retrograde amnesia. B?
asked by Felicia 
Biology
WHERE IN AN ANIMAL CELL IS WATER STORED?
asked by Ashley 
Math
A Russian mathematician named Christian Goldbach came up with a theory that every even number greater than 4 can be written as the sum of odd primes. Test Goldbachs theory with the numbers 6 and 50.
asked by Shion 
english 9 1
what would i put in this to clarify it to be a pronoun? Director Ted Kline's new movie, which didn't feature any stars, was finally released last May. This was a surprise.
asked by sa 
physics to be conceptualize
Which of the following statements are FALSE? Select all that apply. In an isolated system where only conservative forces cause energy changes, the kinetic energy and potential energy of the system can change, but the mechanical energy of the system cannot
asked by member of physics 
chemistry
.0900g of unknown acid(diproctic acid) with empirical formular(CHO2) is dissolved in 30.0ml of water and the rest is titrated to the endpoint with 50.0ml of .040 M NaOH(aq) determine the molecular formula of the acid?
asked by tesh 
Math
A fire hose has a circular crosssection which has a diameter of 20 cm. The hose is full of water and the water in the hose is flowing at a speed of 5m/s. How many liters of water can flow from the hose in 1 minute? (1m^3 = 1000 L)
asked by Maria 
physics
A car is moving down a street at 51 km/h. A child suddenly runs into the street. If it takes the driver 0.62 s to react and apply the brakes, how many meters will the car have moved before it begins to slow down?
asked by miranda 
math
Samuel solved the equation h – 234 = 1,192 and found the solution to be h = 958. Is he correct? He is right I think because when you subtract 234 from 1192 it equals 958 right?
asked by Jake 
Precalc
rewrite sinxtanx/(cosx+1) as an expression that doesn't involve a fraction.
asked by Sophia 
Math
Need Help!! Find the measure of the small angle between the hands of a clock at 8:16 a.m. I keep getting different answers
asked by Mark 
Physics
A piece of copper with mass 2.5kg is heated from 30degree celcius to 80degree celcius. 50000 Joule of thermal energy is needed.What is the heat capacity of the piece of copper? What is the specific heat capacity of the piece of copper?
asked by Da S 
Programming Logic
Shemrock Inc. is a brake pad manufacturing company. This company uses raw materials, such as carbon powder, iron, ash, and resin. It wants to develop an inventory management system that will have the following features: 1.The system should store the
asked by Kelly 
physics
When jumping straight down, you can be seriously injured if you land stifflegged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 68.5kg man just before contact with the ground has a speed of 5.59 m/s. (a)
asked by ben 
physics
If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?
asked by James 
Precalculus
Show that the equation x^3+ x^23=0 has no rational roots, but that it does have an irrational root between x=1 and x=2
asked by Sam 
math
what is the smallest number which must be subtracted from 208 to leave a number which is exactly divisible by7?
asked by Anonymous 
chemistry
List the balanced net ionic equations for all reactions that you observed in this experiment. Use your observations to provide evidence for all successful reactions completed and products formed. Where applicable, list ions in their coordination complex
asked by gine 
physical science
How much heat is absorbed by a persons hand if 100 grams of liquid water at 100°C is poured on his hand? (Assume the final temperature of the water will be normal body temperature of 37°C)
asked by Holland 
I.E.D
What is a technical sketch? What is an artistic sketch? How are the two similar and how are they different?
asked by meee 
Precalculus
An open box is to be formed from a square sheet of carboard (square is 10x10 cm) by cutting squares and then folding up the sides. (the squares cut off are just the corners as they are labeles as an x by x). A) Find a function for the volume of the box.
asked by Sam 
accounting
imagine a business and its 50 transactions.. journalize it and also record it in subsidary books, post into ledger and prepare a trial balance... plzz help me...
asked by sweety 
math
Write the equation of the quadratic function with roots 2 and 4 and a vertex at (1, 9).
asked by paige 
Physics
Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Gabriella 
Physics
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Alexander 
physics
A car with a velocity of 19 m/s is accelerated uniformly at the rate of 1.8 m/s2 for 6.8 s. What is its final velocity?
asked by miranda 
math
3 out of 5 students own a pet. 6 out of 11 students own a pet. are the results proportional? explain reasoning
asked by nancy 
Math
To convert a temperature in degrees Celsius to degrees Fahrenheit multiply the Celsius temperature by 9/5 and then add 32 F Is a temperature in degrees Celsius proportional to its equivalent temperature in degrees Fahrenheit.
asked by beth 
Physics
What is the frequency of Xrays of 10 nm wavelength? 6 x 10^16 Hz 3 x 10^16 Hz 3.00 Hz 6 x 10^8 Hz
asked by Jiskha 
Biology
WHAT ORGANELLE WILL BE USED DURING CELLULAR REPRODUCTION TO HELP ANCHOR THE SPINDLE FIBERS?
asked by Ashley 
math
The distance between two numbers on a number line is 6 units. One number is 5. What are the possibilities for the other numbers. A. 1 and 11 B. 0 and 5 C. 0 and 10 D. 5 and 11 Is the answer d
asked by taliah 
Chemistry
I did a simple distillation and a fractional distillation to purify acetone. How do I determine the concentration of acetone? (Instructions say this is not a simple M=mol/L calculation). My guess was to divide the volume of purified acetone by the volume
asked by helllp 
physics
If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?
asked by James 
Physiology and Health
You have been given the task of making a presentation to a group of junior high school students arguing against making marijuana legal. What are four risks associated with its use that you could include in your talk?
asked by DestinyLashea 
physics
A car with a velocity of 19 m/s is accelerated uniformly at the rate of 1.8 m/s2 for 6.8 s. What is its final velocity?
asked by miranda 
Physics
What acceleration will you give to a 24.9 kg box if you push it horizontally with a net force of 82.8 N? __________ m/s2
asked by Dakota 
stats
A normal distribution has a mean of µ = 28 with σ = 5. What is the minimum raw score needed to be in the top 25% of the distribution?
asked by Komal 
stats
Given a normal distribution with µ = 80, σ= 5, and given a sample size of n = 25, describe the following characteristics of the sampling distribution: 1. Central tendency 2. Variability
asked by Komal 
physics
state the surface powers required to produce the following lenses with +6.25D front curves. a. 0.50 DS 6. +0.50 DS c. +1.75 DS
asked by Help 
Science  Chemistry!!!
A lead bullet with a mass of 8.50 g traveling at 4.80 x 102 m/s strikes a 2.00 kg block of wood and is embedded in it. Both the bullet and the block are initially at 25.0°C. Assume that no heat is lost to the surroundings and that all the kinetic energy
asked by Lola 
Physics
A 521 N box is sitting on a 33.5° incline. Find the force of gravity parallel (Fp) to the surface of the incline, and the force of gravity perpendicular to the surface of the incline (FN). a. If the coefficient of static friction is 0.227, find the Ff .
asked by MaKayla 
Chemistry
If you spilled a container of iron filings on the ground, how would you separate the iron fillings from the soil using their individual physical properties?
asked by Anonymous 
computers and math PLEASE HELP
Please somebody do you know any websites that have virtual place value blocks for making decimals. Please make suer i can acctually make the decimal on the websites. Lastly make sure it s a websites that i can stay on for as longt as i want without the
asked by elementary kid 
science
the ski lift chair at a ski report is 2560m long. on average, the ski lift rises 15.2 degree above the horizontal. how high is the top of the ski lift relative to the base?
asked by Anonymous 
Science
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Rolf 
stats
A researcher hypothesizes that a new herbal supplement improves memory. A sample of n = 25 college students is obtained and each student takes the supplement daily for six weeks. At the end of the 6week period, each student is given a standardized memory
asked by Komal 
Math
Malia runs twice as fast as Eileen. If Malia and Eileen start from the same point and run around a circular track in opposite directions, how many times will they pass each other if they stop when Malia completes her sixth lap? I figured 5 times. Is that
asked by Mark 
Physics
Two ice fisherman stand face to face on the ice. They put their hands together, and push away from each other. The first man, who has a mass of 75 kg, accelerates backwards at 3.1 m/s What is the acceleration of the other man, who weigh 637N?
asked by MaKayla 
social stody
what parts of canada are good for growing crops
asked by ariana 
I.E.D
How do you envision applying your sketching skills in college?
asked by meee 
algebra 1
find the length of the following segment created by these pairs of endpoints: (0,1), (6,6)
asked by dylan 
math
if we need 5 oranges to make 3 small glasses of orange juice, how many small glasses of juice can we make with 100 oranges?
asked by reece 
Physics
Push a loaded grocery cart by a distance of 50m exerting horizontal force of 30N on the cart at an angle of 53degrees, how much work would you do on the cart?
asked by Lisa 
math
find the perimeter of a triangle whose vertices are the followinf specified points in the plane? (5,4)(2,9)and(10,5)
asked by LeTaira 
chemistry
how are the ionization energies evidence for the structure of the atom especially the electron configurations for atoms ?
asked by jack 
physical
A dog is pulled at an angle of 30 degrees with the horizon using a tension of 450N. If the sled has a mass of 50kg, then find the recoil, forward force and acceleration (if any)?
asked by Gee 
math
how do you simplify the fraction 5ccd/15c? and what do the "c" and "d" stand for?
asked by aleixs 
Physics
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Daniel 
integrated math
consider the line equation y+5=11x. which of the following points lie on this line? (more then one answer.) A. (5,1) B. (0,0) C. (5,11) D. (11,5) E. (11,5)
asked by Anonymous 
Algebra 2 Expected values
Sarah draws cards from a deck of 52 cards. She receives $.40 for each heart, $.50 for an ace, and $.90 for an ace of hearts. If each draw costs $.15 should she play the game?
asked by WAM 
Social Studies 8R (2nd question)
Why do some call him a Capatain of Industry? Now for this question I know why, is because since he a industrialist, he controlled many railroads. He was on of the richest man in america. right????
asked by Laruen 
sentence and paragraph
8–12 sentences..You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must
asked by llw 
math
If a bar code contains a letter followed by a digit from 1 to 9 followed by another letter how many different codes are possible?
asked by jerry 
Algebra
i am having problems understanding.... i don't know how to put it so i will just put what the problem is Write the slopeintercept form of an equation of the line that passes through the given point and is parallel to the graph of each equation 13. (2,7)
asked by Emmy 
physics please help
What effect does the magnetic field have on the speed of the particle?
asked by jewel 
pltw
How would you teach sketching to a student next year?
asked by meee 
math
I am a number between 50 and 60. One of my factors is 28. What number am I?
asked by Avery 
Chemistry
Calcium carbonate can be used as an antacid to treat excess stomach acidity. What type of substance is calcium carbonate? a. base b. reducing agent c. acid d. buffer
asked by Anonymous 
Precalculus
An open box is to be formed from a square sheet of carboard (square is 10x10 cm) by cutting squares and then folding up the sides. (the squares cut off are just the corners as they are labeles as an x by x). A) Find a function for the volume of the box.
asked by Sam 
math
Are fact families for even and odd numbers?
asked by jp 
Physics
A cannon ball is fired with a velocity of 200 m\s2 at an < of 25° above ground. The total flight time is 45.6 seconds. (Neglect air resistance.) a. Calculate the initial horizontal\vertical components of the velocity b. Calculate maximum height of the
asked by Shannon 
Physics
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Jason 
Math
Cari Bean was on her way to the islands in her yachet. Because of the waves and the currents, she was making irregular progess. The first day she traveled 100 miles. The second day she traversed 120 miles, and the third day only 90 miles. On the fourth day
asked by Terry 
Math
Malia runs twice as fast as Eileen. If Malia and Eileen start from the same point and run around a circular track in opposite directions, how many times will they pass each other if they stop when Malia completes her sixth lap? I figured 5 times. Is that
asked by Mark 
Biology
WHAT ORGANELLE IN THE ANIMAL CELL AIDS IN DIGESTING OLDER CELL PARTS AND WASTES?
asked by Ashley 
SS8R  (2nd question) help!
business rockefeller control???????? i only thing I know is that he formed a Standard Oil Company.... does that count is there any other business he control (looked up on wiki, not there...)
asked by Laruen 
Math
I am having a hard time doing equivalent fractions. Would 3/5 of 2/9 be equivalent? Please help
asked by Cherie 
Gen Chem
what is the formula weight for CuSO4 5H2O?
asked by Andrea 
LATIN
Obey the divine law and tell us the truth now! I need help translating these into Latin please
asked by Andy 
Physics
Consider a NASA spacecraft in a circular orbit 440 km above the surface of Mars. What is the spacecraft's orbital period in hours?
asked by Anthony 
Chemistry
a compound decomposes with half life of 8seconds and is independent of concentration.how much time is consumed to convert the concentration of one sixteenth of its initial concentration?
asked by Maria 
organic chemistry
how do the flow rate of the carrier gas and the column temperature affect the retention time of a cocompound on a GC column
asked by lyly 
Math
Two pieces of leather in the shape of the number 8 are used to make the surface of the ball used in the game of softball. The radius of the softball is 3.6 cm. What area of leather is required to make one of the figure 8 pieces?
asked by CrissyXD 
computers
When running SNORT IDS, why might there be no alerts?
asked by Addy 
Precalculus
find the equation of the cubic equation show graph passes through the points (3,0) and (1,4) and is tangent to the axis at the origin??? I honestly cannot figure this out and can you explain the graph to me too?
asked by Sam 
physics
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Jason 
english
what is the order of imortance? whoever answers this gets to meet my mom the mayor!!!!!!!!!!!!!!!!!!!!
asked by alyssa 
Physics
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
asked by Rothschild 
Art
What is most remarkable about the painting of Peter Breugel the Elder?
asked by Jane Miller 
Physics
The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the rod will decrease. The length of the rod will increase. Wouldn't the length double, thus being answer D?
asked by Laurie 
Algebra
I don't get how you do this please help, thanks! Write the equation in the form ax+b=0. Then write the related function y=ax+b. 5x+2=7
asked by Emma 
Math
a square is cut in half and made into 2 rectangles 9 inches long. What was the area of the the square?
asked by Reece 
Social Studies 8R  HELP!
Why do you think some people called Vanderbilt Robber Baron? to be honest with you I HAVE NO IDEA??? please help me!!!!
asked by Laruen 
physics
State the surface powers required to produce the following lenses with +6.25D front curves. a. 0.50 DS b. +0.50 DS c. +1.75 DS Is a 6.75DS?....
asked by Help please! 
7th grade science ms. sue please
have no idea what these answers are. Thanks! 1. Explain in detail one of the climate change causeand effect relationships. 2. Explain why a new moon is not visible and the difference between the waxing and waning phases of the moon.
asked by Delilah 
math
a basketball team wins 77 games but had lost 63 games. haw do you find percent of of game won?
asked by booker 
physicsssss
3. A 885g mass to a verticle spring of force content 160N/m oscillates with a maximum velocity of .38m/s. Find (a) the period, (b) the amplitude, and (c) the maximum magnitude of acceleration.
asked by Quita 
Statistics
In practical use, oral contraceptives have a 5% chance of failing. If a doctor has 10 patients using oral contraceptives, what is the probability that at least 1 will get pregnant?
asked by Joe 
physicsHELPP
A 50.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 27.0 m/s. If the player was moving upward with a speed of 2.80 m/s just before impact. (a) What will be the speed of the ball
asked by Anonymous 
physics
If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?
asked by James 
Physical Science
If liquid pressure were the same at all depths, would there be a buoyant force on an object submerged in the liquid?
asked by Sheila 
Math
Mrs. Yale wrote a number between 35 and 48 on her board. The sum of the digits is 7. What number did Mrs. Yale write on her board?
asked by Chloe 
Physics
3. A 2000 kg sports car moves in a horizontal circular path of 150 m\radius at a constant speed of 80 m\s. a. magnitude of centripetal acceleration b. magnitude of centripetal force
asked by Shannon 
computers and math
Do you know any websites that have virtual place value blocks for making decimals. Please make suer i can acctually make the decimal on the websites. Lastly make sure it s a websites that i can stay on for as longt as i want without the website saying that
asked by elementary kid 
Math
cscx/1sinx
asked by Sophia 
math
Write a formula for this sequence: 50, 83, 116, 149,... I just don't know how to find it..
asked by Emma 
Biology
WHAT ORGANELLE AIDS IN TRANSPORTING SUBSTANCES?
asked by Ashley 
science
what is the density if the mass is 17g and the volume is 34cm3 ?
asked by lauren 
SS8R  help!
organizations named after rockefeller so far I got.... Rockefeller Center the Rockefeller Foundation is there more because that's all I found when I google it
asked by Laruen 
Biology
WHAT CELL PART AIDS IN MOVEMENT AND INCREASES THE SURFACE AREA?
asked by Ashley 
Biology
WHY WOULD PLANT CELLS HAVE 1 LARGE CENTRAL VACUOLE AND NOT SEVERAL SMALL ONES LIKE IN AN ANIMAL CELL?
asked by Ashley 
math
How ma ny dots in array? ....
asked by Anonymous 
Physics
1. 125g mass attached to a string oscillates with an amplitude of 7.8cm and a maximum speed of .625 m/s. Find (a) the force constant and (b) the period of motion.
asked by Quita 
college chemistry
How many gram of Zn would be necessary to produce 534 grams of Fe by the sequence of reactions shown below? Step 1 Zn + HCl ==> ZnCl2 + H2 Step 2 Fe2O3 + H2 ==> Fe + H2O
asked by ursula 
Chemistry
Can someone please explain this problem step by step. How would you prepare 1000.0ml of 0.600M NaOH solution starting from concentration of 1.000M
asked by Tasha 
math
if you are playing a game to toss a ball in a basket through a target what is the probability that you will win?
asked by owen 
Chemistry
If you used 2300 kcal you expend in energy in one day to heat 6.0 * 10^4g of water, what would its new temperature be
asked by Anonymous 
physics
A 50.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 27.0 m/s. If the player was moving upward with a speed of 2.80 m/s just before impact. (a) What will be the speed of the ball
asked by Anonymous 
Precalculus
If p(x) is a cubic polynomial such that p(0) = 0, P(2) = 4 and P(x) is positive only when x > 4 find p(x).
asked by Sam 
Physics
For the first part of this question I got 12.12m/s B. With the help of a friend the boy measures the height to which the ball returns and finds it to be 5.2 meters. How fast was the ball moving when it left the ground? I wrote this down mass of ball:
asked by Josh 
English ms. sue
ms. sue I doing project on catcher in the rye book, and could you please tell me what this quote means? what do it tell about Holden? Take most people, they're crazy about cars. They worry if they get a little scratch on them, and they're always talking
asked by Mohammad 
Financial Management
As the financial analyst for a corporation, you are evaluating various types of bonds. The firm is gathering research about bonds currently issued. Understanding how to properly value a vanilla bond (a plain bond) is essential for finance. 1) What makes
asked by Angie 
physics college
A rocket booster fires in space with a force of 500N and moves the 10kg satellite from rest to motion in 2.1 seconds. Find the acceleration? What is the final speed of the satellite?
asked by Gee 
Math
The volume of a cylinder is 330 cm^3 . What are the dimensions of the cylinder (radius and height)?
asked by Jason22 
Physics
A satellite has a mass of 6179 kg and is in a circular orbit 4.83 × 105 m above the surface of a planet. The period of the orbit is 2.4 hours. The radius of the planet is 4.03 × 106 m. What would be the true weight of the satellite if it were at rest on
asked by Orla 
English
Based on the following description of the Nun, which word BEST describes her? At meat her manners were well taught withal; / No morsel from her lips did she let fall, / Nor dipped her fingers in the sauce too deep; / But she could carry a morsel up and
asked by Anon 
Math
When it is cold outside, Maria wears more layers of clothes. When it is warm outside, she wears fewer layers of clothes. What is the independent variable in Maria’s decision on how many layers of clothes to wear? A outside temperature B number of layers
asked by Anonymous 
Math
a square is cut in half and made into 2 rectangles 9 inches long. What was the area of the square?
asked by APril 
Math
How will I work this problem? Find the functional values requested in the problem. h(x)=3x4 (a) h(0) = (b) h(10)=
asked by Ms. Jackie 
Math
Julie is solving the equation x2 + 6x + 9 = 0 and notices that the discriminant b2  4ac has a value of 0. This tells her that the equation has
asked by Jack 
English/Literature
I have to write an essay, but I just need help with coming up with some ideas. In the essay, I have to compare/contrast the plays "Ajax" OR "Electra" (both are by Sophocles) with the "Iliad" (by Homer). I CANNOT mention similarities/differences in plot
asked by Joshua 
physics
State the surface powers required to produce the following lenses with +6.25D front curves. a. 0.50 DS b. +0.50 DS c. +1.75 DS Is a 6.75DS?....
asked by Help 
Math
If a rectangular board has an area of 30 square feet, what are the possible measurements of its length and width
asked by Shion 
Math
Frank saved 50% by purchasing his airline ticket early. His wife paid full price. If their total was $294 how much was Franks's ticket only?
asked by Ma 
I.E.D
How would you teach sketching to a student next year?
asked by meee 
Computers
May you please identify poor computer ergonomics.
asked by Juanita 
Biology
HOW DOES A CELL WALL HELP WITH “TURGOR PRESSURE?”
asked by Ashley 
Physics
Trying to find escape speed from a planet and I am given the radius and gravitational field  g = 18 m/s^2. I have the conservation of energy, final energy is zero, I have the formula for V = sqrt 2GM/r, u = mgy. I have too many unknowns...I can't solve
asked by Brenda 
Biology
WHY WOULD PLANT CELLS HAVE 1 LARGE CENTRAL VACUOLE AND NOT SEVERAL SMALL ONES LIKE IN AN ANIMAL CELL?
asked by Ashley 
Math!!!!!!!
How do you solve problems like 1/2+1/3 or 3 1/5+6 1/2 without a number line? Thank to everyone who helps! I posted this question at 10ish but noone helped so I'm posting it again.
asked by Jessie 
Physics
a) What is the magnitude of the gravitational force that the Sun exerts on Saturn? b) What is the magnitude of the gravitational force that Saturn exerts on the Sun?
asked by Ryan 
Math
Is one a prime?
asked by Anonymous 
science
What is the velocity of a car traveling from the east coast to the west coast at an average speed of 50 kph?
asked by murphy 
Algebra
x/14
asked by Damon 
Math
Add or subtract Write in simplest form Weather in January through March Death Valley gets a total of about 21/25 inch of precipitation. In April through June it gets a total of about 6/25 inch. How much more precipitation occurs in January through March
asked by Jerald 
math
Malia runs twice as fast as Eileen. If Malia and Eileen start from the same point and run around a circular track in opposite directions, how many times will they pass each other if they stop when Malia completes her sixth lap? I figured 9 times. Is that
asked by Mark 
math
4  (8) = I got 4 is this correct 2  (6) = Again I got 4 is this also correct
asked by kyle 
ict
answer for ict crossword home work following the same pattern
asked by kay 
physics
Why should the value of moment of inertia be relatively close to one another for two different mass but on the same body?
asked by siddh 
algebra 1
1. Solve the linear system using substitution. 4xy=5 4x+4y=4
asked by Janet 
7th grade science bobpursley or Ms. sue please
Can you guys help me please? I have no idea what these answers are. Thanks! 1. Explain in detail one of the climate change causeand effect relationships. 2. Explain why a new moon is not visible and the difference between the waxing and waning phases of
asked by Delilah 
CHEMISTRY
Are you always solving for final volume in the combined gas law?
asked by Daniel 
Math
frank saved 50% by purchasing his airline ticket in advance. His wife paid the full price. If their total charge was $294, how much was Frank's ticket only?
asked by Reece 
english
the father, along with his oldest son are
asked by Anonymous 
math
how do you figure out the diameter of a pipe that is 40 feet high and holds 200000 gallons
asked by becky 
phi 103
"If that wasn't illegal, then it wouldn't be against the law" may commit which fallacy?
asked by greg 
physics
You drive a car for 2.0 h at 35 km/h, then for another 2.0 h at 64 km/h. (a) What is your average velocity? (b) What is your answer if instead you drive 99 km at each of the two speeds?
asked by miranda 
Algebra
Year, t Sales, S(t) 1 62 2 246 3 664 4 1579 5 3258 6 8430 7 14,532 (c) If S−1 exists, find S−1(3,258).
asked by Kristi 
algebra
can you show me how to do these problems solve the equation by finding the exact solution 1/3x2=2 b) 1/3log(x)log(100)=2 c)ln(x)ln(5)=7
asked by missfubuc 
Algebra 1
Change 3yx=0 into slope intercept form
asked by Rayyan 
physics
You drive a car for 2.0 h at 35 km/h, then for another 2.0 h at 64 km/h. (a) What is your average velocity? (b) What is your answer if instead you drive 99 km at each of the two speeds?
asked by miranda 
human services
Identify three considerations that should be part of the program and proposal preplanning process of grant proposal writing.
asked by Judy 
arithmetic
If a blue box has 5 times as many marbles as a red box and the blue box has 24 more marbles than the red box how many marbles are in each box?
asked by Yorgelys 
Chemistry
why would a molecule change color under acidic or basic conditions?
asked by Cristian 
English
If we can produce the final draft within next week, we can finalize this treaty by the end of this month. (Is this sentence grammatical? Would you correct any errors?)
asked by rfvv 
chemistry
If I have liquid that contains 10% metanol, that freezes on 20C. How many etanol i must add? I used fla delT=Kf*b b=10,75 m=? where i use proc. of metanol and etanol. What graphic or fla i use for this? Thank you
asked by Mia 
Physics
How do I find the instantaneous acceleration of the earth orbiting the sun? Everything I am trying is incorrect. I am using 1 second as my time and get 1.99E7 rads/second. First I tried: acceleration = theta x t / radius Where: theta = 1.99E7 rads radius
asked by Brenda 
Math
Malia runs twice as fast as Eileen. If Malia and Eileen start from the same point and run around a circular track in opposite directions, how many times will they pass each other if they stop when Malia completes her sixth lap? I figured 9 times. Is that
asked by Mark 
Math
A set of 12 identical metal ballbearings was made from 10 cm^3 of metal. Calculate the radius of each ball bearing.
asked by CrissyXD 
Boolean algebra
Simplify this function using Boolean algebra laws? I am stuck on this part of my homework (x2'x1'x0') + (x2'x1x0) + (x2x1x0') I know you have to use distributive laws to do this. Any help is appreciated. Thank you.
asked by John 
math
8p12+7p
asked by chantel 
Physics
a quaterback throws a ball to a stationary reciver wo is 15.2m down the feild. the football is thrown at an initial angle of 42 dagrees. acceleration is 9.81m/s^2. what is the initial speed that quaterback must throw the ball to hit the reciver?
asked by Sierra 
chil development
keeping systematic record of observations of children provid useful information for
asked by jo 
Chemisttry
How would you make 0.1 N HCL using 12M HCL?
asked by Jeff 
Math
Find three ordered pairs that satisfy the question. y=3x6 (0,__), (1,__), (2,__)
asked by Ms. Jackie 
adv comp/foods
I have to review a restaurant. What criteria should i include in my paper?
asked by rebekah 
Computers
What are some computer work related disorders?
asked by Sasha 
English
1. They are wearing brand name shoes. 2. They are wearing brandname shoes. 3. They are wearing name brand shoes. 4. They are wearing anmebrand shoes. (Which one is correct?)
asked by rfvv 
Social Studies
How Rockefeller was able to take control over the entire oil industry?
asked by Monisha 
physics
State the surface powers required to produce the following lenses with +6.25D front curves. a. 0.50 DS b. +0.50 DS c. +1.75 DS Is a= 6.75D? b= 5.75D? c= 4.75D?
asked by Can anyone help me on this question please? 
algebra
if integers x and y satisfy 2008x=16y , the smallest possible value of x+y is______.
asked by nics 
math
steps to solve 2(x+2)=8
asked by amy 
spelling
what does distinguish mean
asked by Kandy Bear 
Math
A new quarterback has to pick two number that will go on his football shirt. How many pair of number can be make from the digits 3,5,7,and 9? What are all the possible choice?Explain how you arrived at your answer.
asked by Chen 
math
7225
asked by Ann 
Math
What inequality will equal 2 and 8?
asked by Trevor 
English
What is the subject in this sentence Each family of potters has it's own special designs.
asked by Anonymous 
math
Show 2 more in a set with 5. Show 3 less in a set with 12.
asked by Geanna 
math
m=3, n=2,p=1 find the value m(pn)2/3p+m
asked by Anonymous 
science
what is the definition of special properties
asked by Kandy Bear 
chemisty 2
Calculate the molarity (M) of a solution if you have 0.34 mol of NaOH in 19 ml of water
asked by chris 
English
Write subject and verb. Where was the first automobile race held?
asked by Anonymous