Questions Asked on
February 6, 2013

math
if you made a stack of nickels a 100 inches tall, how many nickels would you need
asked by joy 
english
Scientists report (1) that creatures living in the deep sea are in danger of starving to death. Millions of undiscovered species live, in the deep sea. Creatures in the seabed are suffering from growing food shortages. Which may be a result of rising sea
asked by matt 
science
A 15.0 gram lead ball at 25.0°C was heated with 40.5 joules of heat. Given the specific heat of lead is 0.128 J/g∙°C, what is the final temperature of the lead?
asked by Suizaranne 
chemistry/physics
If a rock climber accidentally drops a 69.0 g piton from a height of 305 meters, what would its speed be just before striking the ground? Ignore the effects of air resistance.
asked by Brianna 
English 10
Can someone please check my answers for me please 1. Which of the following is NOT a behavior associated with editing? checking your spelling cleaning up formatting developing a subtopic fixing punctuation errors (MY ANSWER) 2. True or False: The purpose
asked by LaShondra 
math
A courtyard is shaped like a square with 250ftlong sides. What is the distance from one corner of the courtyard to the opposite corner? Round to the nearest tenth. 353.6 ft 500 ft 433.0 ft 176.8 ft can someone show me how to do this?
asked by Corie 
english
story: why, you reckon? What argument does the other man use to convince the narrator to team up with him? What lesson do you think the narrator learned by the end of the evening?
asked by mahi 
Physics
A dolphin jumps with an initial velocity of 13.0at an angle of 44.0 above the horizontal. The dolphin passes through the center of a hoop before returning to the water. If the dolphin is moving horizontally when it goes through the hoop, how high above the
asked by Meredith 
Organic chemistry
A dielsAlder reaction of cyclopentadiene with Maleic Anhydride experiment was conducted in lab. But I was wondering why we added ligroin to the maleic anhydride and ethyl acetate. I know ligroin can be used as a solvent and it is also nonpolar, though
asked by James 
physics
A rigid rod holds a restaurant sign horizontally from the side of a building. The force due to gravity acting on the sign is 165N with the angle between the sign and the rod being 50 degrees. Ignoring the weight of the rod what is the magnitude of the
asked by Carolyn 
chemistry
Calculate the theoretical percentage of water in gypsum, rounded to the nearest whole number %. (calcium sulfate dihydrate; CaSO4 ° 2H2O; Ca = 40 g/mol, S= 32 g/mol; O= 16 g/mol; H= 1 g/mol).
asked by tina 
Physics
A basketball player throws the ball at a 36° angle above the horizontal to a hoop which is located a horizontal distance L = 8.2 m from the point of release and at a height h = 0.2 m above it. What is the required speed if the basketball is to reach the
asked by Jada 
Physics
A bee flies to a flower 549 m due south of its hive. The bee’s speed in still air is 0.58 m/s, and there is a wind blowing toward the south at 0.18 m/s. How long will it take the bee to travel to the flower and back to the hive? Answer in units of s
asked by dallas 
7th grade health please help Ms. Sue!
1. Which substance found in tobacco is a drug that speeds up the heartbeat? (1 point) Tar Carbon monoxide Nicotine Emphysema 2. Which substance found in tobacco causes emphysema, a disease of the lungs? (1 point) Tar Carbon monoxide Nicotine Secondhand
asked by Delilah 
Chemistry
Ammonium ion (NH4^+) reacts with nitrite ion (NO2^) to yield nitrogen gas and liquid water. The following initial rates of reaction have been measured for the given reactant concentrations. Expt. # [NH4^+] [NO2^] Initial rate (M/hr) 1 0.010 0.020 0.020 2
asked by Anonymous 
Chemistry
Nitric oxide reacts with chlorine to form nitrosyl chloride, NOCl. Use the following data to determine the rate equation for the reaction. NO + (1/2)Cl2 > NOCl Expt.[NO] [Cl2] Initial rate 1 0.22 0.065 0.96 M/min 2 0.66 0.065 8.6 M/min 3 0.44 0.032 1.9
asked by Anonymous 
physics
a particle is subject to a force fx that varies with a position shown in figure P 7.15.find the work done by the force on the particle as it moves (a)from x=0 to x=5.00,(b)from 5.00m to 10.0 m,(c)from x=10.0 to x=15.0 m.(d) what is the total work done by
asked by Anonymous 
Chemistry
The following initial rate data apply to the reaction F2(g) + 2Cl2O(g) > 2FClO2(g) + Cl2(g) Expt. # [F2](M) [Cl2O](M) Initial rate (M/s) 1 0.05 0.010 5.0 x 10^–4 2 0.05 0.040 2.0 x 10^–3 3 0.10 0.010 1.0 x 10^–3 Which of the following is the rate
asked by Anonymous 
physics
Three charged particles are placed at the corners of an equilateral triangle of side 1.20 m (see figure). The charges are Q1 = +3.8 µC, Q2 = 9.0 µC, and Q3 = 6.1 µC. Calculate the magnitude and direction of the net force on each due to the other two.
asked by Anonymous 
Chemistry
Heres a balanced equation: Na2CO3(aq)+2AgNO3 (aq) > 2NaNO3(aq)+Ag2CO3 (s) From this equation, 10 mL of AgNO3 in this contains 34 grams of AgNO3. Calculate the grams of solid product, Ag2CO3. Part 2: 10 mL of Na2CO3 in this experiment contains 21 grams of
asked by Sarah 
Chemistry
4Fe + 3O2 > 2Fe2O3 + 1.65E3 kJ C) what is the enthalpy change for the formation of 23.6 g of iron(iii) oxide? I'm trying to understand thermochemical reactions and stoichiometry, so could you please tell me if this is correct? And please explain the parts
asked by A Canadian 
chemistry
The charge and identity of an ion with 16 protons, 18 electrons and 17 neutrons would be?
asked by Kim 
physics
While sitting in a lounge chair with the back inclined at an angle of 10 degrees from the vertical, you tuck a pillow between your head and the chair. Then you lower the chair back to 40 degrees and doze with the pillow in place. How has the net force on
asked by Carolyn 
general chemistry
A 1.24g sample of a hydrocarbon, when completely burned in excess of O2(g), yields 4.04g CO2 and 1.24g H20. Determine the empirical formula.
asked by StressedStudent 
APUSH
How could trusts purchase a seat in the Senate (late nineteenth century)?
asked by Anonymous 
GEneral Chemistry
the radius of a chlorine atom is 99 pm and its mass is 5.89 X 10^23 grams what is the density When I look at this i know that 99pm= 9.9e7 and to get volume v=(3/4) or 1.33 (3/4)*3.14 pi *r^3 When I get to this point I do: 1.33*3.14= 4.1762*9.9e7=
asked by melissa HELP!!! 
Physics
Maria throws an apple vertically upward from a height of 1.3m unit an initial velocity of velocity of 12.4m/s 1. will the apple reach a friend in a tree house 5.3m above the ground. 2. If the apple is not caught, how long will the apple be in the air
asked by Jessica 
science
The hot coils in an electric baseboard heat the surrounding air using _____.
asked by harold 
AP Physics B
Two point charges Q1 and Q2, are located a distance .20 meter apart, as shown above. Charge Q1 = +8.0μC. The net electric field is zero at point P, located .40 meter from Q1 and .20 meter from Q2. Determine the magnitude and sign of charge Q2.
asked by Alix 
Physics
A force of 5N and a force of 15N acting on an object can produce the following net forces except a. 20N b. 15N c. 10N d. 5N
asked by Carolyn 
Math
At a concession stand, popcorn costs $1.10 and nachos cost $2.35. One day, the receipts for a total of 172 popcorn and nachos were $294.20. How many popcorns were sold. Please show work! I don't understand
asked by Annie 
General Chemistry
When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3(s)+2HCl(aq)> CaCl2(aq)+H2O (l)+CO2(g) How many grams of calcium chloride will be produced when 32.0 g of calcium carbonate are combined
asked by Alexis 
Analytical chemistry
A 0.6334 gram of sample of impure mercury (II) oxide was dissolved in an unmeasured excess of potassium iodide. Reaction: HgO + 4I + H2O →HgI42 + 2OH Calculate the % HgO in the sample if titration of the liberated hydroxide required 42.59 ml of
asked by Anonymous 
physics
An astronaut has a mass of 100 kg. She recedes from her spacecraft using spurts of gas from a small unit on her back. If the force generated by the gas spurt is 50 N, calculate her acceleration.
asked by tash 
chemistry
Alexandra decides to climb Mt. Krumpett, which is 5000 high. She determines that this will require a total of 3600 of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 of carbohydrates,
asked by chemistry 
Math
A copy machine makes 60 copies per minute. A second copy machine makes 80 copies per minute. The second machine starts making copies 2 minutes after the first machine starts. Both machines stop making copies 8 minutes after the first machine started.
asked by Jacob 
Calculus help!
A ball is shot into the air from a bridge, and its height, y, in feet, above the ground t seconds after it is thrown is given by y=f(t) = −16t2 + 55t + 33. What is the average velocity of the ball during the first second? Round your answer to two decimal
asked by Jackie 
English; Help/Check.
Check, Please? Select the one that is a Not a sentence fragment. A. Asking the interviewer how often he would have to work on weekends. B. To apply for a job at the new store in the mall. C. Shaking his new boss's hand, Tony knew he would like working
asked by Unknown 
english
Scientists report (1) THAT CREATURES LIVING IN THE DEEP SEA ARE IN DANGER OF STARVING TO DEATH. Millions of undiscovered species live, in the deep sea. Creatures in the seabed are suffering from growing food shortages. Which may be a result of rising sea
asked by matt 
math
it costs kerry $400 to build a tree house. he sells the tree house to nannette and makes a 48% profit. how much does nannette pay for the tree house? i multiply 400x48% and i got $192, am i right
asked by rod 
CHEMESTRY
One of the few xenon compounds that form is cesium xenon heptafluoride (CsXeF7). How many moles of CsXeF7 can be produced from the reaction of 13.0 mol cesium fluoride with 14.0 mol xenon hexafluoride? CsF(s) + XeF6(s) > CsXeF7(s)
asked by Kenah Smith 
Division story
Write a division story of 25 divide by 5
asked by Lize 
Chemistry (Stoichiometry)
Heres a balanced equation: Na2CO3(aq)+2AgNO3 (aq) > 2NaNO3(aq)+Ag2CO3 (s) From this equation, 10 mL of AgNO3 in this contains 34 grams of AgNO3. Calculate the grams of solid product, Ag2CO3. Part 2: 10 mL of Na2CO3 in this experiment contains 21 grams of
asked by Jennifer 
7th grade math please help Ms. Sue
4. Find the area for a triangle: base 14, height 5.5. (1 point) 19.5 cm² 77 cm² 38.5 cm² 770 cm² 5. Find the area of a parallelogram: base 5.2, height 2.3. (1 point) 10.6 cm² 12.96 cm² 5.98 cm² 11.96 cm² My answers: 4. 38.5 cm² 5. 11.96 cm²
asked by Delilah 
Chemistry
The formula for ibuprofen is C13H18O2. How many moles of ibuprofen are present in a 200.0mg tablet.
asked by Anonymous 
physics
A block of mass 3 kg is hung from a spring, causing it to stretch 21 cm at equilibrium, as shown below. The 3 kg block is then replaced by a 4 kg block, and the new block is released from the position shown below, at which point the spring is unstretched.
asked by Anonymous 
English
I need a sonnet with 14 lines 10 syllables per line and ABAB CDCD EFEF GG rhyme scheem for tomorrow please? Is about something you hate...thank you(:
asked by Anonymous 
Physics, Please Help!
A heliumneon laser beam has a wavelength in air of 633 nm. It takes 1.48 ns for the light to travel through 34.0 cm of an unknown liquid. What is the wavelength of the laser beam in the liquid? (answer in ns)
asked by Michael 
physics
An eagle is flying horizontally at 5.8 m/s with a fish in its claws. It accidentally drops the fish. (a) How much time passes before the fish's speed doubles? (b) How much additional time would be required for the speed to double again?
asked by louis 
Algebra
The length of a rectangular garden is 4 m greater than the width. the area is 77m^2. find the dimensions of the garden.
asked by Chrissy 
Math
Marco drew 20 pictures. He drew 3/4 themin art class.how many pictures did Marco draw in art class?
asked by Pietro 
Chemistry
25.9 kJ + 1/2 H2 + 1/2 I2 > HI B) how much energy is needed for the reaction of 4.57E24 molecules of iodine, I2, with excess hydrogen, H2? How does the "excess" hydrogen come into play? I mean, what's the significance of having excess H2 and how do I
asked by A Canadian 
CHEMESTRY
One of the few xenon compounds that form is cesium xenon heptafluoride (CsXeF7). How many moles of CsXeF7 can be produced from the reaction of 13.0 mol cesium fluoride with 14.0 mol xenon hexafluoride? CsF(s) + XeF6(s) > CsXeF7(s)
asked by Kenah Smith 
Division story
Write a story division for 36 divide by 9
asked by Lize 
biochemistry
1. Walking consumes approximately 100 kcal/mi. In the hydrolysis of ATP (ATP → ADP + Pi), the reaction that drives the muscle contraction, ΔGo’ is 7.3 kcal/mol (30.5 kJ/mol). Calculate how many grams of ATP must be produced to walk a mile. ATP
asked by Blake 
physics
Two forces act on an object. The magnitude of the net force acting on the object a. equals the sum of the magnitude of the two forces b. equals the difference in the magnitudes of the two forces c. equals the average of the two forces d. cannot be
asked by Carolyn 
english
1)Why do you think dystopian literature is such a popular trend among today’s young adults? 2)Why do you think fictional utopias always tend to go horribly wrong and become dystopias? 3)Why do you think the fictional survivors of an apocalypse always
asked by KHJ 
Math
What fraction of a circle is 331/3% of a circle?
asked by Tim 
Physics, Please Help
A 5.7 cm thick layer of oil (n=1.46) is sandwiched between a 1.1cmthick sheet of glass and a 2.5cm thick sheet of polystyrene plastic (n=1.59). How long (in nm) does it take light incident perpendicular to the glass to pass through this 9.3cm thick
asked by Michael 
Physics
Stephanie hits a volleyball from a height of 0.80m and gives it on initial velocity of 17.5m/s straight up 1. How high will the volleyball go? 2.how long will it take the ball to reach its maximum height?
asked by Jessica 
physics
A hydraulic jack is used to lift a 2000 pound car. If the output piston (the one the car is sitting on) has an area of 60 square inches, how much force must be applied to the 0.5 square inch input piston to lift the car? ____ pounds?
asked by wally 
grammar
Scientists report (1) that creatures living in the deep sea are in danger of starving to death. Millions of undiscovered species live, in the deep sea. Creatures in the seabed are suffering from growing food shortages. Which may be a result of rising sea
asked by matt 
Math
Caroline has 10 marble . One half of them are blue.how many of Caroline marbles are blue
asked by Pietro 
Chemistry
4Fe + 3O2 > 2Fe2O3 + 1.65E3 kJ C) what is the enthalpy change for the formation of 23.6 g of iron(iii) oxide? I'm trying to understand thermochemical reactions and stoichiometry, so could you please tell me if this is correct? And please explain the parts
asked by A Canadian 
Physical Ed
11. Disagreements are a normal part of life. (1 point) True False 12. Talking to a trustworthy adult is the best way to stop sexual abuse and get help. (1 point) True False 13. Some conflicts are made worse by peer negotiation. (1 point) True False 14.
asked by Someone 
math
the measures of 2 adjacent side of a parallelogram are in the ratio 17:7 if the second side measures 3.5cm find the perimeter of parallelogram ?
asked by kavitha 
general chemistry
the radius of a chlorine atom is 99 pm and its mass is 5.89 X 10^23 grams what is the density
asked by melissa 
Math
Write the answer in simplest form: 1. 1/32/9=1/9; 2. 3/51/10=1/2; 3.1/21/8=3/8; 4. 2/31/6=1/2; 5. 7/121/3=1/4; 6. 4/52/10=3/5; 7. 7/152/5=1/15; 8. 3/43/16=9/16; 9. 5/81/2=1/8; 10. 1/21/5=3/10 please check my answers... Thanks
asked by Thea 
Chemistry
This isn't exactly a homework question, I'm just trying to understand the concept we learned today... So say we had: 4Fe + 3O2 → 2Fe2O3 + 1.65 x 10^3 kJ Does that mean for every 4 mol of Fe, 3 mol of O2, and 2 mol of Fe2O3 we have 1.65 x 10^3 kJ? And if
asked by A Canadian 
Organic chemistry
We conducted a dielsAlder reaction of cyclopentadiene with Maleic Anhydride experiment. Though I was wondering why we added ligroin to the maleic anhydride and ethyl acetate. I know ligroin can be used as a solvent, but I thought that ethyl acetate was
asked by Anna 
Chemestry
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. 4 Au(s) + 8 NaCN(aq) + O2(g) + 2 H2O(l) 4 NaAu(CN)2(aq) + 4 NaOH(aq) (a) Determine the mass of gold that can be extracted if 29.3 g sodium
asked by Kenah Smith 
physics
Which of the following situations describes inertia? a. A stationary object tends to resist being moved. b. A moving object tends to resist a change in speed. c. A moing object tends to resist a change in direction d. all of the above
asked by Carolyn 
physics
A liquid (ρ = 1.65 g/cm^3) flows through two horizontal sections of tubing joined end to end. In the first section the crosssectional area is 10.0 cm^2, the flow speed is 245 cm/s, and the pressure is 1.20 105 Pa. In the second section the
asked by dave 
Chemestry
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. 4 Au(s) + 8 NaCN(aq) + O2(g) + 2 H2O(l) 4 NaAu(CN)2(aq) + 4 NaOH(aq) (a) Determine the mass of gold that can be extracted if 29.3 g sodium
asked by Kenah Smith 
physics
In her physics lab, Jessica rolls a 11g marble down a ramp and off the table with a horizontal velocity of 1.38 m/s. The marble falls in a cup placed 0.45 m from the table's edge. Find the table's height.
asked by ronnie 
physics
A trapeze artist sailing through the air rotates with a rotational speed of 0.9·rev/s. If she contracts to reduce her rotational inertia to one sixth of what it was, what will her new rotational speed be? _____ rev/s? Can she completely stop her rotation
asked by wally 
Chemistry
N2 + O2 > 2NO enthalpy change = +180.6kJ c) what is the enthalpy change for the formation of one mole of nitrogen monoxide? Okay, I know this question is super easy, but I don't know how to do it; if someone could please give me a detailed explaination on
asked by A Canadian 
Physics
A dolphin jumps with an initial velocity of 13.0at an angle of 44.0 above the horizontal. The dolphin passes through the center of a hoop before returning to the water. If the dolphin is moving horizontally when it goes through the hoop, how high above the
asked by Meredith 
Chemestry
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. 4 Au(s) + 8 NaCN(aq) + O2(g) + 2 H2O(l) 4 NaAu(CN)2(aq) + 4 NaOH(aq) (a) Determine the mass of gold that can be extracted if 29.3 g sodium
asked by Kenah Smith 
chemistry
In a constantpressure calorimeter, 75.0 mL of 0.830 M H2SO4 was added to 75.0 mL of 0.310 M NaOH. The reaction caused the temperature of the solution to rise from 23.20 °C to 25.31 °C. If the solution has the same density and specific heat as water,
asked by Brianna 
math
compute the average of the following numbers:17, 33, 45,66 and 135 I need to see the problem worked out step by step thank you.
asked by steve 
biochemistry
2. Given the following data, calculate the Keq for the denaturation reaction of βlactoglobin at 25 oC. Δ Ho = 88 kJ/mol, Δ So = 0.3 kJ/mol
asked by Blake 
math
You deposit $6,700 in a moneymarket account that pays an annual interest rate of 3.3%. The interest is compounded quarterly. How much money will you have after 4 years?
asked by kenny 
Chemistry
Equation: 3CaCl2 (aq) + 2 Na3PO4 (aq) → Ca3(PO4)2 (s) + 6 NaCl (aq) How many grams of Ca3(PO4)2 are formed when 450.0 g NaCl are formed in the reaction? please show steps, please
asked by Sarah 
Science
trying to lift an 8N load that is attached to a fixed 2 pulley system. Hands move a distance of 1.6m while the load moves 0.8m, what is the force required to lift the load? I am thinking the the answer is 1.6 divided by 0.8 am i on the right track? what
asked by Jenn 
math
Find the percent of decrease. Original rent: $600 New rent: $450
asked by alex 
math
8 students share 5 yds of ribbon equally, what fraction does each student get?
asked by david 
physics
A tennis ball is struck and departs from the racket horizontally with a speed of 26.9 m/s. The ball hits the court at a horizontal distance of 18.1 from the racket. How far above the court is the tennis ball when it leaves the racket?
asked by louis 
Chemistry
What is the concentration of methanol in a solution prepared by combining 7.85mL of a 3.693M methanol solution with 17.50mL of water? Assume volumes are additive and report your answer to 3 decimal places.
asked by Jaden 
Division story
Write a division story of 54 divide by 6
asked by Lize 
physics
A mass, m1 = 5.5 kg, is in equilibrium while connected to a light spring of constant k = 132 N/m that is fastened to a wall (see a). A second mass, m2 = 10.9 kg, is slowly pushed up against mass m1, compressing the spring by the amount Ai = 0.17 m (see b).
asked by Anonymous 
physics
A swimmer, capable of swimming at a speed of 1.01 m/s in still water (i.e., the swimmer can swim with a speed of 1.01 m/s relative to the water), starts to swim directly across a 1.47kmwide river. However, the current is 1.01 m/s, and it carries the
asked by louis AAAAAAAAAAAAAAAAAAAA 
Science
Use the following values for mass and charge: an electron has mass me = 9.11×1031 kg and charge e, a proton has mass mp = 1.67×1027 kg and charge +e, an alpha particle has mass malpha = 6.65×1027 kg and charge +2e, where e = 1.60×1019 C. An
asked by R 
Math
Marco drew 20 pictures.he drew 3/4 of them in art Class. How many pictures did Marco draw in art Class?
asked by Pietro 
Math
At the dance, Lyndi and Josh danced 3/4 hour without stopping. This is 3/8 hour more rhan Kecia and Les danced. How long did Kecia and Les danced? Show your work..
asked by Mike 
Chemistry
what conditions are shared by cities that suffer from photochemical smog?
asked by Sara 
Physics
A runner covers one lap of a circular track 40.0 in diameter in 63.3 . For that lap, what was her average velocity? If she covered the first halflap in 28.6 , what were her average velocity for that halflap?
asked by Anonymous 
geometry
construct a right angled triangle whose perimeter is 10cm and one acute angle is equal to 60?
asked by satweek 
math
if I deposited $100 in your savings account today, how much will you have 10 years from now if your account pays compound intrest once a year and the annual intrest rate is 4%
asked by Anonymous 
English; Help/Check.
e last word in each sentence is either an adjective or an adverb. 1. The sun burnt the grass quickly. Answer: adverb 2. It burnt the grass black. Answer: adverb 3. He drove his employees hard. Answer: Adjective 4.The student studied hard for his test, so
asked by Unknown 
Math
1 litre can of paint covers 11m squared. How many cans of paint would you need to cover a perfectly square ceiling that has a side length of 5.2 m? If paint caosts $29.95 per can and there is a 12% tax. How much would it cost to paint the ceiling?
asked by Louis 
physics
Consider a 9·kg disk with a radius of 0.9·m and rotating about an axis passing through its center. (a) What is its rotational inertia? ______ kg·m2 ? (b) Suppose the disk is rotating counterclockwise and speeding up with a rotational acceleration of
asked by wally 
geometry and measurement
A pool designed for lap swimming is rectangular in shape with a uniform depth of 4.5 feet. If the pool is enlarged so that it holds twice as much water, which of the following statements could be true?
asked by dave 
math
A rocket is fired at sea level and climbs at a constant angle of 70° through a distance of 10,000 feet. Approximate its altitude to the nearest foot. how do you solve this?/
asked by Anonymous 
science. neep help ASAP
PLEASS help ASAP. I FORGOT MY FOLDER iN MY LOCKER AND I HAVE NO CLUE WHAT These are. If u can give me the annswer to this one question then i can do all the other ones. DIRECTIONS: in the exercise that follow, arrange the items listed into different
asked by leslie 
physics
A steady 50 N horizontal force is applied to a 10 kg object on a table. The object slides against a friction force of 35 N. Calculate the acceleration of the object in m/s.
asked by tash 
physics
a 1.00 kg pendulum bob is released from a height of .200m. its speed at the bottom of its swing is 1.95m/s on the first pass. how much energy is lost due to friction during one complete swing?
asked by Anonymous 
physics
An objectis at rest on an incline. The component of gravity acting downward and along the incline on the object is described as Fg,x = +8.0N. Which axis is pointing up the incline? a. + x axis b. + y axis c.  x axis d  y axis
asked by Carolyn 
math
a plane flies over a control tower at a height of 8km.an observer on the ground is 15km from the control tower.How far is the plane from the observer?
asked by ten 
Science
Use the following values for mass and charge: an electron has mass me = 9.11×1031 kg and charge e, a proton has mass mp = 1.67×1027 kg and charge +e, an alpha particle has mass malpha = 6.65×1027 kg and charge +2e, where e = 1.60×1019 C. An
asked by R 
chemistry
If 2.25g of a gas occupies 1750mL at 180 degrees Celsius and 550mm Hg of pressure, what is the molecular weight of the gas?
asked by rv 
Statistics
A study of reading ability in schoolchildren chose 60 fifthgrade children at random from a school. The researchers had children's scores on an IQ test and on a test of reading ability. An eccentric professor has his own idea of the relationship between IQ
asked by Karl Lewis 
math
Franco went to sticker station. He bought 2 strips of 10 and 6 singles of frog stickers. He also bought 5 strips of 10 and 2 singles of butterfly stickers. How many stickers did Franco buy?
asked by help 
Chemistry
Calculate the pH of 75 ml of the buffer composed of .1M HC2H3O2 with .2M NaC2H3O2; to which 9.5 ml of .1M HCl is added.
asked by Kelli 
english
Essy topic why i like living in south africa
asked by Itumeleng 
college algebra
Median family income in country x between 1990 and 1999 can be modeled by f(x)=1144.7(x1990)+35,834 where x is the year. Determine the median income was $42,303. I did it this way don't know if it's right f(x)=1144.7(x1990)+35,834 42,30335,834 = 1144.7
asked by Anonymous 
chemistry
At constant volume, the heat of combustion of a particular compound is –3323.0 kJ/mol. When 1.489 g of this compound (molar mass = 131.02 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 8.077
asked by Brianna 
General Biology
There is only one bag potato chips left on the planet Earth. Ed and Trina have found it on the far side of ‘look out’ mountain with 2 grams of water inside the bag. The chips were soggy. Until another source of nutrients has been discovered they must
asked by Tia 
math
Gina cut a piece of ribbon into 3 equal pieces. Then she cut 2 inches off one piece to make a piece 3 inches long. How long was Gina's original piece of ribbon?
asked by bianca 
Chemistry
a solution of h2so4 (aq) with a molal concentration of 6.25 m has a density of 1.3 g/mL. what is the molar concentration of this solution?
asked by Felicia 
Science
If the adverage weight of a human body is 75kg and given the mass of the earth is 5976 x 10^21kg, how many people will it take to exceed the weight of the earth? At the present growth of 1.14%, when will the present population of 6.8 x 10^9 grow to that
asked by Jason 
Math
Tom spent 1/3 of his allowance at mall. Of the money he spent at the mall, he spent 3/5 of it on jeans. What fractions of his allowance did Tom spend on jeans?
asked by Lisa 
math
explain reasonable scale and interval
asked by tyaunna 
physics
An airplane with a speed of 80.9 m/s is climbing upward at an angle of 64.5 ° with respect to the horizontal. When the plane's altitude is 795 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly
asked by louis 
geometry
If you cut a 3.4  inch square out of each corner of a piece of paper with dimensions 13  by  38.5 inches and fold it into a box, what is the volume of the container?
asked by Audri 
Chemistry
The heat lost or gained by a system is related to its temperature change by a property called its heat capacity. The molar heat capacity of metals at or above room temperature equals 24.92 J K1mol1. The temperature of a block of copper metal (molar mass
asked by Caitlin 
science
Identify the 3 things that can be classified as Matter and 3 things that cannot. Explain your reasoning for each classification.
asked by teacher1 
Broadcast/english
Would someone please proofread my broadcast news story.. I'd appreciate feedback. Thanks in advance A University student ran into her professor at school the same day she pretended to be sick. Naomi Bush says because she did not finish her project last
asked by Blaze 
Math
Explain It Franklin says that if he divides 50 by 5, he will get 10. Jeff says he should get 9. Who is correct? Explain.
asked by Shaun 
geography
what is exsolation
asked by mulalo 
Alegebra
If a kayaker's speed while traveling upstream is 7 miles per hour and downstream is 4 miles per hour. What is the kayaker's speed in still water? What is the speed of the current?
asked by Nick 
Math
it is a rectangle with a height to length ratio of 2 to 25 . if the window is 24 feet high. how long is it?______ft
asked by Zach 
math
The federal government estimated that 2,000,000 gallons of oil were spilled per day for the first 44 days of the spill, until a " never before used at such depth" containment dome was installed. This dome or cap reduced the rate of spill to roughly 450,000
asked by Nalini 
maths
pat spent 50% of his money in one shop and 25% of what was left in another shop.he had £12 left. what fraction of his money had he left and how much had he at first.
asked by Anonymous 
To Corie
Do NOT post answers to other students' questions unless you are prepared to explain thoroughly. Simply giving away answers doesn't help anyone learn anything! Failure to adhere to this is a good way to get yourself on the banned list.
asked by Writeacher 
physics
A rectangular loop of wire with sides 0.196 and 0.584 m lies in a plane perpendicular to a constant magnetic field (see part a of the drawing). The magnetic field has a magnitude of 0.723 T and is directed parallel to the normal of the loop's surface. In a
asked by PLEASE HELP 
CHEMISTRY
In PCl5, Fe2S3, H3PO4, how many number of a.)elements b.)atoms c.)molecules are present?? Is it pure? Is it a compound or a mixture??
asked by Monicq 
social studies
who successfully negotiated the final terms of the treaty of guadalupe hidalgo?
asked by Anonymous 
Dr. Bob222 GChem
I agree with 0.0918 mols C and 0.137 mols H but not the formula. 0.137/0.0918 = about 1.5; is that C2H3? And the balanced equation is 4C2H3 + 11O2 ==> 8CO2 + 6H2O I've not heard of C2H3? Okay, I have never heard ofC2H3 as well, so I had to take the number
asked by Devron 
Math
decompose this fraction 7/9
asked by Lourane 
math 4th grade
Sue, we are trying to understand this ordering fractions from least to greatest, 1/2 3/4 4/6 . I don't understand about change the denominator to 12?
asked by Lourane 
science
what must the crane work against in order to lift the box upward? . wind . friction . gravity . cable tension
asked by ninel 
math
Indira bought 6 yards of material for drapes and a bag of buttons. She spent a total of $39. If the buttons cost her $3, how much was each yard of material?
asked by bianca 
mathematics
John has 3 unique coins such that the probability of obtaining a head when the coin is flipped is 110, 210 and 310, respectively. If he flips each of the 3 coins once, the probability that at least 1 heads appears is p. What is the value of 1000p?
asked by amartya 
physics
Which of the following is true of inertia? a. It is described in Newton's first law of motion b. It is a property of motion c. It is measured by weight d. all of the above
asked by Carolyn 
Math 9
My family went to starbucks. We ordered 3 drinks. My daughter's drink was .90 cents less than my drink and my sons drink was $2.20 more than my drink. The total bill was $12.90. How much was each drink? Use algebra. Please help me, thanx
asked by Molly 
physics
what is the strength of the electric field at (x,y)=(3.0m, 3.0m)? where v=(120x^2290y^2)V, where x and y are in meters. Please explain. thanks
asked by senko 
science
Describe a process for determining the volume of a small, irregularly shaped object.
asked by teacher1 
social studies
in what ways could the natural barrier of the himalayas have both helped and hurt the cicilization of the indus river valley
asked by joseph 
statistics
Of the 5,352 requests for medical records in the question above, 4,257 were located within the 20minute time frame established by the supervisor as a quality improvement indicator. What is the rate of compliance in answering requests for records? Round to
asked by Anonymous 
baby care
if a breastfed baby is suffering from gas,the reason may be that the a.mother is feeding the baby to often b.baby is getting its milk to slowly c.breast milk is too rich for the baby d.baby is getting milk too quickly my answer is d a babys milk teeth
asked by susue 
social studies
historians don`t know for sure why people left mohenjodaro. What are some possible explanations for the end of the civilization.
asked by crystal 
Broadcast writingRevised
FYI: It is in all caps because with this class our teacher recommends us to write this way because it's easier to read out loud. I revised it A UNIVERSITY STUDENT RAN INTO HER PROFESSOR AT SCHOOL THE SAME DAY SHE PRETENDED TO BE SICK. NAOMI BUSH SAYS
asked by Blaze 
Math
The measures of the angles of a triangle are in the extended ratio 2 : 2: 8. What is the measure of the smallest angle? can someone pretty please show me how to do this?
asked by Corie 
Algebra 1 Math
The sum of a smaller number and twice a larger number is 67. If the smaller number is increased by 5, the sum will equal the larger number. Find the numbers. A rectangles width is four more than twice its length. Its perimeter is 62. Find the dimension of
asked by Tony 
Division story
Write a division story of 18 divide by 3
asked by Lize 
college algebra
Median family income in country x between 1990 and 1999 can be modeled by f(x)=1144.7(x1990)+35,834 where x is the year. Determine the median income was $42,303. I did it this way don't know if it's right f(x)=1144.7(x1990)+35,834 42,30335,834 = 1144.7
asked by Anonymous 
physics
A block of ice of mass m rests on the very top of a smooth metal hemishpere. The tiniest nudge sends it sliding down the side of the hemisphere. The acceleration of gravity is g and the radius of the hemisphere is R. At what angle, with respect to the
asked by ap 
Accounting
The business was started on April 1st. I have the following events that happened: what accounts should I debit and credit? 1. Incurred advertising expense of $1,907 on account. 2. Hired park manager at a salary of $3,783 per month, effective May 1. 3. Sold
asked by Jacob 
chemistry
what possible chemicals can test the presence of limonene except bromine water and potassium permanganate?
asked by marlo 
Chemistry
What mass of Iodine contains same number of atoms as 50.0g of Cl?
asked by Anonymous 
math
By a unit fraction, we mean a rational number with a numerator of 1. Symbolically, 1 b where b is a nonzero integer. Find six distinct, positive unit fractions whose sum is 1.
asked by Omar 
Bokgoni technical secondary school
1. The sun set like? 2. The clouds looked just? 3. The moon smiled because? 4. The wind was like a lover's soul because? 5. Six silly students? 6. There are over a million?
asked by Nkululeko 
algebra
Please explain a little bit further 4(5^(2n+1))10(5^(2n1))/ ( 2(5^n)) = 2(5^(2n1) ) ( 2(5^2  5(1) )/2(5^n)) = 5^(n1) (50  5) = 225 (5^(n1) )
asked by rroyd 
physics
An astronaut has a mass of 100 kg. She recedes from her spacecraft using spurts of gas from a small unit on her back. If the force generated by the gas spurt is 50 N, calculate her acceleration.
asked by tash 
Language Arts
Your voice is like a pomegranate wine is an example of a) simile b) metaphor c)figurative lanuage
asked by Anonymous 
Science
Give and explain four land features glaciers cause from their movements. Thanks for any help!
asked by Ais 
physics
an object is in equilibrium under the action of three forces.Two of these forces,A an B,are illustrated in the accompanying diagram.The third force,F,is not illustrated. 3.1What is meant by the resultant of A and B?
asked by sphelele 
physics
An object is in equilibrium under the action of three forces.Two of these forces,A an B,are illustrated in the accompanying diagram.The third force,F,is not illustrated. 3.1What is meant by the resultant of A and B? 3.2Determine by means of accurate
asked by sphelele 
math
lara and maria finished 3/4 of their homework assignment. lara did 1/4 more of the assignment than maria. what fraction of the assignment did each girl finish?
asked by sean 
science
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard
asked by becca 
7 Science
If earth was larger what would happen to it's atmosphere? It would expand It would evaporate It would be sucked into space It would become more dense
asked by unknown.gonegirl 
Math
At the dance, Lyndi and Josh danced 3/4 hour without stopping. This is 3/4 hour more than Kecia and Les danced. How long did Kecia and Les dane? Show your work.,
asked by Mike 
Chemistry
Whats the percent yield in the reaction: P+5C2H5OH+ 5/2 I2 > 5C2H5I + H3PO4 + H2O if you have 4.14g phosporous, 27.5g ethanol, 63.5g iodine, and you get 73g ethyliodine (C2H5I)
asked by Anonymous 
Chemistry
Solution of 50g AgNO3 is mixed with 50g NaCl. a) What mass of AgCl will you get? b) which substance is in redundancy?
asked by Anonymous 
chemistry
newton 1st law of motion
asked by baron 
math probability
If I had the many black grey and white socks and i pulled out 2 socks that did not match. How many more socks do i have to take out of my drawer to be certain to have a matching pair
asked by Alex 
math
multiplying fractions and whole numbers 5/6 x 84 =
asked by Jared 
maths
Using properties of the triple scalar product and triple vector product, prove that (a ^ b) (c ^ d) = (a *c)(b * d)  (a * d)(b * c): [Hint: start by thinking of (a ^ b) (c ^ d) as (a ^ b) e, where e = c ^ d]
asked by alex 
physics
A soccer player kicks the ball toward a goal that is 18.0 m in front of him. The ball leaves his foot at a speed of 19.3 m/s and an angle of 27.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.
asked by louis 
geometry
How many signals does a polygon with 32 sides have?
asked by Ty 
Math 9
My family went to starbucks. We ordered 3 drinks. My daughter's drink was .90 cents less than my drink and my sons drink was $2.20 more than my drink. The total bill was $12.90. How much was each drink? Use algebra. Please help me, thanx sorry I had to
asked by Molly 
Biology
1. 525 jackrabbits in the desert. Big ears (B) are dominant among jackrabbits, while stubby ears (b) are recessive. Of the study of this population, 189 rabbits have stubby ears. Calculate: 1.The frequency of the "bb" genotype 2.The frequency of the "b"
asked by Josh Gedeon 
Math
What fraction is half of the fraction that is half of 1/2?
asked by Tim 
math
Add 3 2/5 and 7 1/3
asked by frank 
physics
A coin of mass 3 g slides horizontally on the surface of a table. The frictional force exerted on the penny is 0.0147 N. What is the coefficient of friction between the table and the penny?
asked by aritro 
Math
In evening my test plz help me to solve it A room length 3m,20m wide and 6m height. Find the floor is to be tiled.if each tile measures 60cm*50cm,find the no. Of tiles required.
asked by Simon 
C code
Write a .c file named calc that:  Takes arguments from the command line  Solves a simple math problem  Returns the result as an exit status calc.c: //this is the function that gets called when the executable is run. int main(int argc, char * argv[]){
asked by Nick 
Maths
Thato caught 4 snails and placed them all in the same small circle on the ground and organised a race......1st snail travelled 24cm in 4minutes,2nd snail travelled 35 cm in 7minutes,3rd snail travelled 33cm in 5minutes and the 4th snail travelled 39cm in
asked by Lucas 
a
lim (xpi/2) (pi2x)^cosx
asked by maam 
math 205
How much must be invested today at 8% compounded quarterly to have 3500 in 4 years?
asked by Anonymous 
PHYSICS
Near San Francisco, where the vertically downward component of the earth's magnetic field is 6.8 x 105 T, a car is traveling forward at 17 m/s. The width of the car is 2.1 m. Find the emf induced between the two sides of the car. If positive charge
asked by PLEASE HELP 
English; Help/Check.
You were to listen to two authors (see chapter 11 for the list of authors  click on any two of the links, and listen to the two authors you chose). Now you need to identify specific examples of the following: * Central idea (explain the main idea of what
asked by Unknown 
Algebra
Simplify : ((5xy)^2)^5 I got 9765625x^10y^10 I don't that is correct..
asked by Emma 
mathematics
The numbers 1,2,…,17 are divided into 5 disjoint sets. One set has 5 elements, one set has 4 elements, two sets have 3 elements and the last set contains the 2 remaining elements. Two players each choose a number from 1 to 17 at random. The probability
asked by Anonymous1 
Chemistry
Okay this is embarrassing but I seem to have lost my ability to do the math.... If my problem is: 200.0mg/1* 1g /1000mg* 1 mol/206.31g= I can't remember if I have to multiply the two bottom ones first or if I just input the information in my calculator I
asked by Anonymous 
Physical Geography of Latin America
What has the most natural resources, including rain forests and minerals.
asked by Allana 
college algebra
Passing through point (1,4); perpendicular to 2x+y=5 How do I solve this? I think it might be this but not sure please let me know what step I left out Thanks:) 2x+y=5 y=52x y=2x5 M1=2 4=1/2(1)+c=1+c C=4 Y=1/4x1
asked by Anonymous 
Chemistry
Hg + I2 > HgI2 Whats the mass of HgI2 if you have 0.7236g mercury and 0.3264g iodine?
asked by Anonymous 
Math
If the line passing through the points (a, 1) and (5, 7) is parallel to the line passing through the points (8, 8) and (a + 2, 1), what is the value of a? a = ?
asked by Stephanie 
English
Hello. Thank you very much for the previous answer. Please help me with one more question. Which word order is better: "Chinese staterun companies" or "staterun Chinese companies"? I haven't found any precise rules, so maybe the word order here doesn't
asked by Ilma 
Geometry and Measurement
If a can of ravioli with a diameter of 2 inches and a height of 4.5 inches holds 12 ounces of ravioli, how many ounces of ravioli would a can with the same height, but double the diameter, hold?
asked by dave 
urgent urgent urgent
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. explain the process the
asked by zachary 
Organic Chemistry
So im trying to make 1acetylcyclohexane from ethenylcyclohexane..and i have to make it in 4 stepsi got the first two steps but the last two is what i am unsure of.. 1) Br2 2) 2 equiv NaNH2 3) ?? 4) ?? i know the 1st two steps but im having trouble
asked by UCI Student 
business math
2/10, n/30 find the complement and net amount paid
asked by helpme 
Science help please!
If a tree has grown out of the side of a rock cliff and a house was recently built on the land above causing the tree a lot more rain water to run off where the tree lives, it's roots have started to be exposed and are now growing faster and bigger with
asked by Ais 
math/help
A driver uses about 600 gallons of gas a year to get around his car. For how many years could he drive his car on all the gasoline that is being lost in one day as a result of this spill.. In one day 2,000,000 gallons spilled.
asked by Nalini 
Chemistry 107
1. Suppose you have a box of 10 marbles, a 50mL gradulated cylinder, and some water. How would you measure the volume of a marble? (Assume that all marbles are equal volume.) 2. Suppose a digital balance reads 0.15g when is placed on the balance and the
asked by Donna 
Science
If a tree has grown out of the side of a rock cliff and a house was recently built on the land above causing the tree a lot more rain water to run off where the tree lives, it's roots have started to be exposed and are now growing faster and bigger with
asked by Anonymous 
survey of mathematics
Search the internet to find a current article (published within the last two weeks of 2013) that provides statistical information relating to public policy and which you think is misleading. Explain why you feel the statistical information is misleading.
asked by keisha 
math
What is the height of a cliff if at 10 am the shadow is 2 feet long?
asked by jen 
Math
Need help on the question below. Jeff studied data from the following categories: age, countries, salary, tempature, types of trees, and year of education. List the quantitative data and list the categorical data. Would the quantitative data be: age,
asked by Brandi 
C++
a program to sort three values (from smallest to largest) entered from the keyboard. Algorithm: 1. INPUT a,b and c 2. If a greater than b If a greater than c If b greater than c The order is a, b, c Else The order is a, c, b Else . . . How will i code
asked by Riana 
Math
At the time of the oil spill, the price of gasoline was 2.75 per gallon. Estimate how many dollars in gasoline is being lost per day as a result of the spill.
asked by Sarah 
CHEMISTRY
How do we determine whether a substance is pure in a chemical formula ?
asked by kev 
Algebra
scientific notation for (5.5*10^8)(8*10^2) I got (5.5*8)(10^8*10^2) then 44*10^10 What am I doing wrong?
asked by Laura 
Math
The greatest loss rate estimates are 4,200,000 gallons per day since the start of the spill, but after 44 days about 1,050,000 gallons were diverted into collection tankers.( The remaining amount was lost in the Gulf). Based on these data (assuming that
asked by Sarah 
PHY 171
How does a derivation differ from an experiment or theory?
asked by Jessica 
math
ABCBD IS A SQUARE AND EFGH IS A PARALLELOGRAM. ED IS EQUAL TO DH .FIND THE SHADED AREA OF THE FIGURE
asked by Anonymous 
chemistry
is the osmotic pressure formed by dissolving 50.9 mg of aspirin (C9H8O4) in 0.450 L of water at 24°C
asked by Anonymous 
A2T
From 19711995 avg # transistors modeled by n=2300(1.07)^t, where t is # of years since 1971. Estimate # of transistors in 1998 (round to nearest integer) Does anyone know how to set up this equation?
asked by Bo 
math
suppose that denise had doubled the number od trays of chocolate chip and oatmeal raisin cooies she bakes.How many trays of cookies would she have baked?
asked by jessica 
Maths
Su Mei bought 3 apples for $2n. How much did she have to pay for 18 apples?
asked by Zayn 
Maths
Machine X can pack 3 crates of bottles and Machine Y can pack 4 crates of bottles within the same time. In half an hour, Machine X packs 24 crates. How many crates can 12 Machine Y s pack in 1 hour?
asked by Zayn 
math
input/output 0 0 2 0 6 0 8 0 3 6 4 8
asked by james 
MATH
2(7w1w+7)>122 ? what work would i do? im just learning inequalties and i have a quiz tomorrow with problems like this, please help!
asked by PLEASE HELP ME 
Psychology
Dr. Gillian explained that research has identified over 25,000 genes which are responsible for the genetic information which progresses from generation to generation. These genes are:
asked by Anna 
Science
If a tree has grown out of the side of a rock cliff and a house was recently built on the land above causing the tree a lot more rain water to run off where the tree lives, it's roots have started to be exposed and are now growing faster and bigger with
asked by Anonymous 
Science
What can oil be turned into by the refining process?
asked by Jerald 
Significant digits
round 799.9696 to 4 significant figures
asked by monic 
Division story
Write a division stoy of 16 divide by 4
asked by Lize 
Math
I need to figure this equation out and I do not understand what the backwards E means ODR= # of people aged ∃65  x 100 # of people aged 1564
asked by Danielle 
Math
A driver uses about 600 gallons of gas a year to get around his car. For how many years could he drive his car on all the gasoline that is being lost in one day as a result of this spill.. In one day 2,000,000 gallons spilled.
asked by Sarah 
CHEMISTRY
how will i know if the given formula is an element, compound or mixture?
asked by Anonymous 
Math
solve. If 1/4inch equals50miles find the miles represented by 41/2 miles.
asked by Leigh 
english
can you help me with this quote. "circumstances are beyond the control of man; but his conduct is in his own power". What does this really mean??
asked by TAYLOR 
Bokgni tech
Engish the sun set like the clouds looked just
asked by Nkululeko 
St francis
Abcd is a quadrilateral such that AB = bc, ad= 1/4am. If bc 12 what is the perimeter of abcd
asked by MAggie 
math
light from point a makes an angle of 20 degrees to the horizontal plane. it is then reflected by plane mirror m. what is the reflected light s perpendicular to the horizontal plane.
asked by kitty 
math
what is the speed of 43.2meters/ second in miles/hour?
asked by Ruth 
c++
Write a program to bring workers' salaries so that if work 150 hours takes 5 pounds on each additional hour takes 2 pounds
asked by moha 
physics
A rotten cranberry will lose at least 90% of its total energy during a bounce. If the cranberries are dropped from a height of 10 cm, what is the minimum height in cm of the wall so that no rotten cranberries could ever bounce over it?
asked by anonymous 
maths
Let a, b, c and d be vectors. (i) Show that (a  b) * (a + b) = a^2  b^2
asked by Jess 
A2T
From 19711995 avg # transistors modeled by n=2300(1.07)^t, where t is # of years since 1971. Estimate # of transistors in 1998 (round to nearest integer) Does anyone know how to set up this equation?
asked by Bo 
Math
The cross section of a pipe of length 49cm.the thicknes of the pipe is 1cm4mm and the outer diameter is 30cm.find the volume of the pipe.
asked by Simon 
Math
Find sec θ and csc θ. If tan θ =3 and cos θ>0. Please helpp, i don't get identities
asked by Oscar 
life oriantation
5 sources of environmental health hazards can contribute to ill health inside home
asked by tebatso 
Prealgebra
In what quadrant does the point stops? Write the coordinates of point B
asked by Amy 
physics
A rocket is fired at a speed of 91.0 m/s from ground level, at an angle of 49.0 ° above the horizontal. The rocket is fired toward an 21.4m high wall, which is located 25.0 m away. The rocket attains its launch speed in a negligibly short period of time,
asked by louis 
math
Simplifying exponents 4(5^(2n+1))10(5^(2n1))/ ( 2(5^n))
asked by rroyd 
Chemistry
Calculate the mass of each element in Na2CO3
asked by Anonymous 
mathematics
Let σ(n) be the sum of the positive divisors of an integer n and ϕ(n) be the number of positive integers smaller than n that are coprime to n. If p is a prime number, what is the maximum value σ(p)ϕ(p)?
asked by Anonymous 
Science
A stretched spring with k=21.6 N/m is pulling with a force of 1.5 N. How much work was done to stretch the spring
asked by Jane 
math
phone call cost 1.75 per minute. Additional minutes are 0.50. How many many can I talk for 8.75
asked by toni 
Math
The greatest loss rate estimates are 4,200,000 gallons per day since the start of the spill, but after 44 days about 1,050,000 gallons were diverted into collection tankers.( The remaining amount was lost in the Gulf). Based on these data (assuming that
asked by Sarah 
informal logic
If Pruth value of is true, and Q is false, the the truth of P v Q is
asked by kenxy 
Math
6/10. Of 10
asked by Vincenzo 
physics
An 9000 test car travels 40.5 before stopping from an initial speed of 25.7 on dry horizontal pavement with its wheels locked. a)Make a freebody diagram of this car while it is slowing down. b) What external force causes it to slow down? c)Assuming
asked by Leewillikers 
maths
Consider the polynomial f(x)=17x4+21x3+60x2+Ax+B. Suppose that for every root λ of f(x)=0, 1λ is also a root of f(x)=0. What is the value of A+B?
asked by austin 
algebra
Eric sold 16 more tickets then Albert. Together they sold 100 tickets. How many did each person sell?
asked by Tim 
math
Eric and Albert won prizes for selling the most raffle tickets. Together they sold 100 tickets. Albert sold 16 tickets more than Eric. How many tickets did each sell?
asked by Tim 
Math
There were 20 more fifth graders then fourth graders. 140 students from both grades. How many fifth graders were there?
asked by Tim 
English; Help..
I'm attempting to write a persuasive essay about a book that I think should get on shelf.. Can anyone giving me ideas?
asked by Unknown 
math
1.As the 1st quantity increases, the 2nd quantity also increases. 2.As the 1st quantity increases, the second quantity decreases.
asked by charles 
Math
order the fractions from least to greatest 1/2, 3/4, 4/6
asked by Lourane 
math
area is 60m by 8m what is the area?
asked by roxie 
Geometry and Measurement
Anna builds a rectangular prism storage container with dimensions of 8 inches by 6 inches by 12 inches. She builds a second container with a greater volume by increasing the dimensions of the rectangular prism to 16 inches by 12 inches by 24 inches. How
asked by dave 
math 4th grade
I donot under stand about decomposing these 7/9 and 4/10 please help
asked by Lourane 
Algebra 1 Math
what has the same slope but different yintercept?
asked by Tony 
math
The greatest loss rate estimates are 4,200,000 gallons per day since the start of the spill, but after 44 days about 1,050,000 gallons were diverted into collection tankers.( The remaining amount was lost in the Gulf). Based on these data (assuming that
asked by Nalini 
earth
a suggestd answer to a question is a what
asked by rita 
math
simplify 7/8*6/5
asked by Shohanur 
Chemistry
Assuming that the [Potato extract] is .001 M and I am going to make a 10 ml solution and each drop is 1/20th of a mL, how do I calculate the [Potato extract] in each reaction solution, using 20 drops, 15, 10, and 5 drops for each one?
asked by Patricia 
informal logic
what is the truth value of the sentence P v ~ P
asked by kenxy 
math
At the time of the oil spill, the price of gasoline was 2.75 per gallon. Estimate how many dollars in gasoline is being lost per day as a result of the spill. 2,000,000 gallons is lost per day.
asked by Sarah 
arithmetic
What number is 7 more than another number their answer is 23 Find the numbers.
asked by Adrianne 
Math
Find an equation of the line that passes through the point and has the indicated slope m. (23, 5); m = 2 y=?
asked by Genee 
maths
prove that if a is not equal to zero and if a * b = a * c and a ^ b = a ^ c then b = c [Hint: calculate a * (bc) and a ^ (bc) vectors mechanics
asked by jenny 
MATH
7s5s+10
asked by Shannon 
social studies
who were the Aryans?
asked by susie 
college enlish comp 1
how to write a persasvie eassy on art is therapeutic
asked by barbara floyd 
MATH
4x+98x>65 with work!(:
asked by Kristen! 
math
round 799.9696 to 4 significant figures
asked by monic 
visual
how
asked by naca 
administures office proceduers
which of the following is usually intalled by the manufacturer
asked by Anonymous 
math
what is the purpose of using fraction strips and a 1 strip
asked by krish 
College Algebra
cubic root of 27x^4 y^13
asked by Laura 
Chemistry
Which are within 10% of 4.63mins? 4.13 5.28 5.02 4.23
asked by Jaden 
math
Find an equation of the line that passes through the point and has the indicated slope m. (23, 5); m = 2 y=?
asked by heather 
math
6/7 x 42 = I got 36 is this right
asked by Jared 
chem
discuss why it necessary to make absorbance measurements at the wavelength of maximum absorbance
asked by ha 
chemistry
1oocm3 of 0.1mhcl as to be prepared from 2mhcl, how much of the stalk is required
asked by lawwealth 
life oriantation
3 environmental health hazards that cause ill health
asked by tebatso 
Algebra 1 Math
how do u solve 3x=y5
asked by Tony 
Limit
(x227)/(x3) as x tends to 3
asked by John 
science
what are 5 types of genotypes
asked by lynn 
math
multiplying fractions and whole numbers 72 x 5/8 =
asked by Jared 
math
when you divide by 4,what remainders are possible? explain your answer :)
asked by brianna