Questions Asked on
March 13, 2016

Math
At the airport, Person A and Person B are walking at the same speed to catch their flight, but Person B decides to step onto the moving sidewalk, while Person A continues to walk on the stationary sidewalk. If the sidewalk moves at 1 meter per
asked by Anonymous 
life orientation
explain in short paragraph what can trigger spectator aggression on sport
asked by thando 
Science
How many Btu's are required to change five pounds of ice at 20°F to water at 160°F? a. 2,608 Btu’s b. 1,390 Btu’s c. 1,304 Btu’s d. 141 Btu’s I am trying ((16020)x.5)x5 but not getting any of the possible choices. What am I missing? Thanks for
asked by Chris 
maths
The first term of A.P. of 20th terms is 2and its last term is 59 . Find its 6th term from the end .
asked by komal 
Physics
A roadway for stunt drivers is designed for race cars moving at a speed of 95 m/s. A curved section of the roadway is a circular arc of 760 m radius. The roadway is banked so that a vehicle can go around the curve with the friction force from the road
asked by SJ 
Math
The percent of sales tax is 6%. What is the sales tax on a skateboard that costs $98?
asked by Mildred 
physics
a ball of mass 0.1kg is thrown vertically upwards with an initial velocity of 80m/s.calculate the potential energy (I) half way up (ii) at its maximum height.what is the kinetic energy as it leaves the ground
asked by stephen 
Math
20% of the children in sport club play tennis 25% of the children who play tennis also play rounder there are 8 children in the club who play both tennis and rounder how many children are there in the sport club together?
asked by Sebastian 
chemistry
When aqueous solutions of chromium(III) bromide and potassium phosphate are combined, solid chromium(III) phosphate and a solution of potassium bromide are formed. The net ionic equation for this reaction is:
asked by Anonymous 
psychology
Because you are bored one afternoon, you decide to try a little experiment. You open your eye very wide, extend your thumb, and then poke yourself in the e ure. Aside from being very foolish and in alot of pain, you may learn something about your eye when
asked by lily 
Life orientation
Explain fully what is meant by 'Designated subjects'
asked by Thandeka 
MATH
A contractor purchases gravel one cubic yard at a time. (a) A gravel driveway L yards long and 6 yards wide is to be poured to a depth of 1 foot. Find a formula for n(L), the number of cubic yards of gravel the contractor buys, assuming that he buys 12
asked by ally 
Physics
If the length of pendulum is 0.8+/0.01m and time peroid is 2.5+/0.012 sec. Then percentage error in acceleration due to gravity will be
asked by Anonymous 
geometry
Points $F$, $E$, and $D$ are on the sides $\overline{AB}$, $\overline{AC}$, and $\overline{BC}$, respectively, of right $\triangle ABC$ such that $AFDE$ is a square. If $AB = 12$ and $AC = 8$, then what is $AF$?
asked by nikita 
math
A map's key shows that every of 5 inches on the map represents 200 miles of actual distance. Suppose the distance between two cities on the map is 7 inches. What is the actual distance between the two cities? Write the rule you used to find the actual
asked by lia 
Life Orientation
Evaluate how each of the following personality types deals with interpersonal conflic: 1.Passive/Introvert 2.Aggressive/Bully 3.Assertive/Extrovert
asked by Constaf 
chemistry inorganic
Potassium tetraoxalate has the formula H2C2O4.KHC2O4.xH2O. 1.923 g of the above compound was neutralized by 22.7 mL of 1.000 M NaOH using phenolphthalein as the indicator. Calculate the value of x in the formula.
asked by Anonymous 
Physics
You stand on a frictionless platform that is rotating with an angular speed of 3.9 rev/s.Your arms are outstretched, and you hold a heavy weight in each hand. The moment of inertia of you, the extended weights, and the platform is 7 kg · m2. When you pull
asked by Luhan 
Physics
The size of Rutherford's atom is about 0.1 nm. (a) Calculate the attractive electrostatic force between an electron and a proton at that distance. (b) Calculate the electrostatic potential energy of that atom. Express the result in unit eV. (c) The size of
asked by Clara 
science computer
Write a program to read the names and age of 10 people and print the name of the oldest person.assume that there are no person of the same age.data is supplied in the following form:name,age,name,age
asked by k 
maths
The first term of A.P. of 20th terms is 2and its last term is 59 . Find its 6th term from the end .
asked by komal 
Biology
Compare and contrast between these two plant polysaccharides : starch and cellulose.
asked by Petrus 
Algebra
13. 4 + 7x + 4 = 3y Find the constant of variation. Someone help, I can't understand how to do it. None of the websites I look up have good explanations, help?
asked by ThissStudent 
home school
In which of the following are 1/2,5/6, and 5/8 arranged in ascending order?
asked by scott 
physics
Explain the difference between a GET and MOSFET on the basis of their construction and working
asked by umesh 
math
An isosceles triangle has a base of 20 cm. The vertex angle is 82 . Find the length of Each of the two equal sides of the triangle.
asked by meme 
Chemistry
Write the balanced reaction for the incomplete combustion of pentane, assuming the formation of carbon monoxide and water as the products. Enter the coefficient for each compound. (Use the lowest possible coefficients. Use the pulldown boxes to specify
asked by Carmen 
Economics
Explain discretionary fiscal policy and automatic fiscal policy (automatic stabilizers).
asked by Anonymous 
Health Sciences
Your body is covered with skin. It helps regulate body temperature, gathers information from the environment, and what other functions? a. protects the body from allergy, infection, and injury b. protects the body from infection, injury, and scars c.
asked by Aeliayo 
Science
chemical equation for sodium hydrogen carbonate and acetic acid (not balanced)
asked by Sai Swarup 
scince
Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine. CCl4(g) + 1/2O2(g) COCl2(g) + Cl2(g), Kc = 4.4 × 109 at 1,000 K Calculate Kc for the reaction 2CCl4(g) + O2(g) 2COCl2(g) + 2Cl2(g).
asked by md 
calculus
area between the curves y^2=4x , 7y=2x+20 , 2x+3y=0
asked by angelo 
life orientation
what can trigger spectator aggression in sport
asked by pulane 
ANALYTICAL CHEMISTRY
Explain the following statement: "The validity of a chemical analysis ultimately depends on measuring the response of the analytical procedure to known standards." (b) Calibration curves are necessary in many chemical measurements involving
asked by KAMBOYI KAMBOYI 
Maths
A drawer contains 8 brown socks and 4 black socks. A sock is taken a random from the drawer, its colour noted and replaced. This is done three times. If X is the discrete variable, the number of brown socks taken. Draw the probability distribution of X.
asked by Chris 
Descriptive Physics
You are standing 5 feet from one speaker and 14 feet from another. Both speakers are producing the same sound. If the combined sound from both speakers is especially loud at your location, which of the following could be the wavelength of the sound? Choose
asked by Thomas 
science
When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........
asked by rohit 
Chemistry
We did a titration of calcium hydroxide lab in chemistry, once with and once with edta, we have to calculate the solubility for both, and the ksp, for the hcl I did (concentration)*(Volume of hcl used) then that answer divided by two divided by the amount
asked by Dan 
Maths
Distance between two points A and B is 100km. Two cars starts from A and B at the same time and in same direction. They meet after 5hrs,then form a linear equation in two variables which shows the differences of distances covered by both the cars.
asked by soha 
BALANCING EQUATION
NA+NO→NAOH+H2 C4+HSO2→C4SO+SO2+HO
asked by SAHAL 
Englishpoem help
Is the poem I wrote a sonnet? My aunt has cancer, i don't know how, i sit and wonder why. I get mad at God and often say i hate him. I know its not his fault, but who am i supposed to blame, its all just bad shame. I walk to see her on her bed, in pain,
asked by Bob 
Business studies,Geography,Tourism,Economics,lit
Which career can i woek for and which is interesting and pays a lot
asked by Mosibudi 
Life orientation
Propose 6 practical actions that you can take to address human rights violations of xenophobia in your community
asked by Minenhle 
math
a concert was held in a school. students tickets cost 5 dollars and regular cost 8 dollars. The school sold 284 tickets for 1600 dollars. Find the number of student tickets and the number of regular tickets sold.
asked by sda 
Trig
I have a diagram of how far a discus was thrown. From A to B is 100m, C is perpendicular to A, from A to C is 50m, A and B are connected to D (it should be a triangle), A has a 40° angle and B has a 75° angle. C is not perpendicular to D btw.. a. Find AD
asked by Anonymous 
math
2/5 of a pool was filled with water. after pouring out 5/7 of the amount of water in the pool, 62 liters of water was needed to fill the pool completely. Find the amount of water needed to fill up the empty pool
asked by sda 
Physics
Two metallic spheres of mass .001 kg hang from a point by .3 m strings. Each is given the same amount and sign of charge. After equilibrium is reached, they each make an angle of 20 degrees relative to the vertical. Determine the amount of charge in each
asked by Robert 
Math
What equation would I write for this problem. Please help. On Tuesday at noon there were 4 inches of snow on the ground. Then it snowed at a rate of x inches per hour for 7 hours. By Tuesday at 7:00 p.m. there were 25 inches of snow on the ground.
asked by Patrick 
Chemistry
What is the mass of MgCl2 required to make 500mL if 1.200 M of MgCl2 Solution? I'm having trouble figuring out what the equation looks like. I believe the answer is 57.127g but if so i would like to know why. I did (1.200M*.500mL)/1000* mass of MgCl2. How
asked by Lemi 
PHYCYSCS
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 79.5 N, Jill pulls with 67.3 N in the northeast direction, and Jane pulls to the southeast with 155 N.
asked by Syuzi 
Algebra
Suppose that Y varies directly with X, and Y=4 when X=16 (a) Write a direct variation equation that relates X and Y (b) Find Y when X=3
asked by Anonymous 
Physics
An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average acceleration is a= (.5m/s^2)i + (.2m/s^2)j. At 13s find the magnitude and direction of the velocity of the airplane.
asked by Bobby 
Physics
A grizzly bear is running at a speed of 25m/s with respect to a man. The man is running 20m/s with respect to a rock. What is the bears speed with respect to the rock. (ALL VELOCITIES ARE IN THE SAME DIRECTION AND POSITIVE)
asked by Bobby 
environmental technology
Calculate the spacing required for the water table to drop from the soil surface to a depth of 30cm in a 2days period over the area 200hecters from the following data k=4cm/hr,the drain are to be placed 105cm below the soil surface the impeamable layer is
asked by kaycee 
Algebra
a certain recipe asks for ¼ of granola. how much is needed to make ¾ of a recipe?
asked by Mike 
science
If I mix 300g of reactant A with 100g of reactant B in a close system how much will it weigh
asked by donna 
math
you deposit $200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to be $221? is 1 year the answer?
asked by Misty 
Social Studies
Which roles did most women feel during the medieval period? A.monks and nuns B.teachers and scholars C.writers and artist D.wives and mothers** Help Please I picked wives and mothers because women didn't have much rights back then.
asked by Hello 
managerial economics
calculating empirical production function Dimex Fabrication Co
asked by Anonymous 
math
A floor refinishing company charges $1.91 per square foot to strip and refinish a tile floor for up to 1000 square feet. There is an additional charge of $250 for toxic waste disposal for any job which includes more than 150 square feet of tile. (a) Find
asked by jen 
English
Can you please check my answers? 1.) In July, our neighbors had (went, gone) to Europe. Gone 2.) Have you (rode, ridden) the gray mare? Ridden 3.) A mountain climber must have (ran,run) into difficulty. Ran 4.) George should not have (wrote, written) the
asked by Destiny 
Chemistry
I need help on this question. Identify the mistakes in the following balanced equations. Rewrite the equation to make it correct. Each question has one mistake to correct. a) C9H20+12O2 > 9CO2 + 10H2O b) H2+Cl > 2HCl
asked by Josh 
english,maths,chem,phy,bio,agric,civic,etc
What are the equations of motion.
asked by samuel 
chem 12
1.0 mol of each of the gases, CO, H20, CO2 and H2 are placed in a 2.00L container and allowed to reach equilibrium. It is found at equilibrium 0.40 mol of CO is present. Calculate the value of K eq for the system. C0(g) + H20(g) CO2(g) + H2(g) Intial
asked by George 
MATH
As dry air moves upward, it expands and in so doing cools at a rate of about 10C for 100m rise, up to about 12 km. a) If the ground temperature is 220, write a formula for the temperature at height x km. Answer: b) What range of temperature can be expected
asked by samantha 
math
The angle of elevation from a boat to the top of a cliff is 42 degrees. When the boat moves 15 feet closer to the cliff, the angle of elevation increases to 54 degrees. How tall is the cliff?
asked by Lily 
math
The business opened with a debt of $3400. After 4 years, it accumulated profit of $4900. Find the profit as a function of time t, knowing the profit function is linear. P(t)=
asked by samantha 
math lit,geography,life sciences,english,agric sci
Can I qualify if I want to study a nursing course and what are the levels I am expected to get
asked by Ntombie 
Science Experiment Help
Just need help answering this one question for my science experiment: "Name another mixture that could be separated like the sugarwater mixture." the sugarwater turned into caramel when I heated it... so what other mixtures do that? Thnx for the help!
asked by Aly 
chem12
2HI(g)H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= 2x H2= x I2=x equilibrium
asked by George 
biology
what type of cell recognizes cells that have been infected by viruses because the infected cells have viral proteins on their surfaces?
asked by katie 
math
if an invoice is dated april 25 and has credit terms of 3/15 ,n/45 , what is the last date on which the net amount of the invoice can be paid without incurring an penalty
asked by tiffany 
ALGEBRA
DETERMINE WHETHER (6,2) IS A SOLUTION OF Y=2/3X
asked by Anonymous 
Chemistry
This is for grade 11 chemistry, balancing equations. Help asap? I'd like to get it done by tonight, if possible. Type of reaction: Predict product in words: Write Balance equation: Heres the question. Aluminum+ Zinc Sulfide =
asked by Colton 
physics
Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.
asked by tom 
physics
After placing a 0.500 m dent in the landlords van, the two management students are told they and their 200 daN beer freezer have to go. The new ramp is inclined at an angle of 32.1 o relative to the horizontal. The coefficient of static friction between
asked by tom 
science
initial condition V1= P1= formula
asked by beah 
accounting
PR 96bAmortization and depletion entries Data related to the acquisition of timber rights and intangible assets during the current year ended December 31 are as follows: a. On December 31, the company determined that $3,400,000 of goodwill was impaired.
asked by novalita 
geography
what are some settlement patterns in the Sahara desert
asked by jasmine 
Math
A team of street pavers was assigned the task of paving two parking lots one twice the size of the other. They worked for the first half of the day on the larger parking lot. Then the team split into two groups of equal number. The first group continued
asked by Seerat 
math
an item is $125, but it's going on sale for $81.25. what is the percentage of the discount?
asked by susan II 
Math
In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 liked both pepperoni and banana peppers on their pizza. If 66 students were surveyed, how many
asked by no name 
physics
a horizontal spring is stretched from its equilibrium position when a force of 0.75kg acts on it. then a force of 1.5 kg is attached to the end of the end of the spring and pulled 4.5 cm along a frictionless table from the equilibrium position. the body is
asked by charles anderson 
Math
you deposit $200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to be $221?
asked by Misty 
life orientation
indetify three courses are interested after grade 12
asked by samuel 
Physics
A nonreflecting single layer of a lens coating is to be deposited on a lens of refractive index n = 1.7. Determine the refractive index of a coating material and the thickness required to produce zero reflection for light of wavelength 540 nm.
asked by Lowes 
Chemistry
What is the mass needed to make 8.5L of a 4.0 M solutution of Na2SO4? (Na=23, s=32, O=16)
asked by jason 
maths
Ratio between number of sides of two regular polygons is 2:3 and ratio between degree measure of their interior angles is 3:4. Write the name of these polygons.
asked by shikha 
chemistry
A 1L flask contains 0.2moles of air open to atmosphere at 0degree celcius. Upon heating some of the air is lost. What is the percentage of air remaining in the flask?
asked by william 
Physics
A thin uniform cylindrical turntable of radius 2.1 m and mass 18 kg rotates in a horizontal plane with an initial angular speed of 8 rad/s. The turntable bearing is frictionless. A clump of clay of mass 5.5 kg is dropped onto the turntable and sticks at a
asked by Luhan 
Chemistry
In a crazy scenario, the Oylan Vinegar Company has 10,000 gallons of vinegar with 0.622% concentration. This vinegar solution cannot be sold because it's too weak, but the plant manager can't bear to discard it. OVC also has a large batch of vinegar that
asked by Mads 
Physics
A woman with mass of 57 kg stands at the rim of a horizontal table having a moment of inertia of 570 kg m2 and a radius of 1.5 m.The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then
asked by Luhan 
Math
From a sample set of 10 colored balls5 green, 3 red and 2 yellow 5 are chosen at random WITH replacement. What is the probability that the result will be: green, red, yellow, red, green? Write your answer as a four place decimal number. p(G,R,Y,R,G)
asked by Jazz 
math
(x  2)10; 8th term
asked by mico 
physics
determine the kinetic energy of a boy mass 40kg running with velocity of 3m/s
asked by energy 
Agricultural Sciences
Determine the size of the pasture by measuring its approximate length and width.One large step is approxinately one metre.
asked by Nonhle 
math
(x  2)10; 8th term (2x + y)8; middle term
asked by mico 
math
How to write a real world problem that compares the ratios 5to 9 and 12to 15
asked by Daniel 
Agricultural Sciemces
Determine the size of the pasture by measuring its approximate length and width.One large step is approxinately one metre.
asked by Anonymous 
Agricultural Sciences
Determine the size of the pasture by measuring its approximate length and width.One large step is approxinately one metre.
asked by Khonah 
algebra
solve by elimination method to find an ordered pair. 7xy=27 x+9y=77
asked by leigh 
All about DRAMA! P.S.  Please check!
1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest manmade waterway in the world, is still used today in China. b. The Grand Canal in China is a manmade waterway, still used, that is the oldest in
asked by Etta 
English
Why do people have stress learning new information?
asked by Boberto 
Science
Volume of 12M HCL taken for preparing 1M HCL (100 ml Sol {
asked by Bushra 
Physics
A partide of mass m moves along a trajectory given by x= a cos δ1 t and y = asinδ2 t . Find rand y component of the force acting on the patde, potential energy, kinetic enenev of the partide and hence show that the total energe E= KE + PE =1/2 m(a*2
asked by jan 
Physics
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of
asked by jan 
PHYSICS
Calculate for Bohr's atomic model the speed of the orbiting electron in the n = 7 state. (Answer in m/s)
asked by Physics Lover 
Physics
How much energy is required to ionize hydrogen when it is in the state with n = 6? (answer in eV)
asked by Eduardo 
Phys
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of
asked by Sara 
Physics
The size of Rutherford's atom is about 0.1 nm. (a) Calculate the speed of an electron that moves around a proton, based on their electrostatic attraction, if they are separated by 0.1 nm. (answer in m/s) (b) Calculate the corresponding de Broglie
asked by Eduardo 
Physics
What is the difference between gravitational potential energy and electric potential energy?
asked by MeritGodwin 
Physics
What is the wavelength of light that can cause a transition of an electron in the hydrogen atom from the orbit with n = 6 to n = 8?(answer in µm)
asked by Clara 
Physics
A grizzly bear is running at a speed of 25m/s with respect to a man. The man is running 20m/s with respect to a rock. What is the bears speed with respect to the rock. (ALL VELOCITIES ARE IN THE SAME DIRECTION AND POSITIVE)
asked by Bobby 
Physics
An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average acceleration is a= (.5m/s^2)i + (.2m/s^2)j. At 13s find the magnitude and direction of the velocity of the airplane.
asked by Bobby 
Algebra
Is .0010001... Rational?
asked by Sally 
computer science
Write a java program that reads from the user the course code, section and the scores of a student for three exams representing two midterms and a final. The percentage of each of the three exams is of fixed value 30, 30 and 40 percent respectively. Your
asked by rayn 
Physics
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of
asked by jojo 
Science
A car is traveling north at 15 m/s ten minutes later it is traveling at 70 m/s what is the car s initial velocity what is its acceleration
asked by Kathy 
Physics
A partide of mass m moves along a trajectory given by x= a cos δ1 t and y = asinδ2 t . Find rand y component of the force acting on the patde, potential energy, kinetic enenev of the partide and hence show that the total energe E= KE + PE =1/2 m(a*2
asked by jojo 
English
1. I am a good cook, amn't I? 2. I am a good cook, aren't I? 3. I am a good cook, ain't I? 4. I am a good cook, am I not? (Which one is commonly used? Which one is used in written forms?)  5. I amn't a good cook. 6. I aren't a good cook.
asked by rfvv 
history
this quotation presents a justification for
asked by kashsh 
Asthana
tell me structural formula of 2methyl propane,2methyl propene,propanal
asked by Vaishnavee 
physics
a ball of mass 0.1 is thrown up with an initial velocity of 80m/s calculate the potential energy half way up
asked by junoo 
science
How can geothermal energy affect the use of fossil fuels?
asked by reiley 
physics
The threshold wavelength for photoelectric emission in metal is 600 nm.Find the maximum kinetic energy of the electrons emitted when it is exposed to the wavelength 200 nm
asked by Anonymous 
Calculus
Using a linear approximation or differentials, approximate:(26.98)^(3/4) thank you for your help!
asked by Emma 
science
A balloon filled with 3.5 L of helium at 20 °C and 3 atm. What will be the new pressure if its volume increases to 17.5 L at constant temperature?
asked by Anonymous 
Calculus
Starting with an initial guess of x=2, use Newton’s method to approximate (Third root of 7). Stop the iterations when your approximations converge to four decimal places of accuracy. Compare with the approximation provided by your calculator I'm so stuck
asked by Tia 
networking
what is the difference between vlan and subnetting ?
asked by sofia 
math
a cylindrical vessel without lid is made from a sheet of metal find the area of metal required if the length of the vessel is 35cm and its diameter is 28cm.
asked by akash tiwari 
mathematical literacy
The scale on a map is given as 1:2 000 000.the distance between two towns on the map is 4,3cm?
asked by ntiso 
Math
Sunitha is interested to find the Relation between the diameters of Jupiter and the earth.From the given data,it is known that the volume of Jupiter is 729 times the volume of earth.she concluded that the diameter of Jupiter is 9 times the diameter of the
asked by Shridevi 
Algebra
The length of a rectangular piece of steel in a bridge is 3 meters less than double the width. The perimeter of the piece of steel is 48 meters. Find the length of the steel. Find the width. What steps or formula do I use to solve this problem.
asked by Dee365 
Physics
A 5000Hz car horn is blasted while the car is moving at 35.0 m/s toward a dazed physics student (stationary). What is the frequency of the horn heard by the student. Assume the temperature is 0°C
asked by Sneha 
maths
a,b,cis natural numbers and the sides of a rightangled triangle theline from altitude to hypotenues is h if 1/a+1/b+1/h  1 find a,b,c
asked by alia 
maths literacy, geography, history, tourism
Can i become a animator if im doing this subjects and are there buseries for me
asked by lunga 
Physics
A body of mass 10g oscillates with Simple Harmonic Motion of amplitude 4cm and time period 0.50s. Calculate: a) The maximum acceleration. b) The maximum kinetic energy.
asked by Alex 
ChemistryDrBob222
Where did you get 5E5. Is this how you set it up? 0.01 x 0.05 = 5E4 If so, is it supposed to be 5E4 instead of 5E5? What is the equilibrium constant for a weak acid HA that dissociates 1% at an initial concentration of 0.05 M according to the following
asked by Nevaeh 
Physics
In a doubleslit experiment, the fourthorder maximum for wavelength of 450 nm occurs at an angle theta = 90. Thus it is on the verge of being eliminated from the pattern because theta cannot exceed 90. (a) What range of wavelengths in the visible range
asked by Kristie 
Physics
A falling rock has a speed of 1.5 m/s. What is the velocity of the rock when it hits the ground 5 seconds later? Give the magnitude and direction
asked by Bob 
ChemistryDrBob222
Is the answer for part c 0.91? A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill
asked by Nevaeh 
Life orientation
Identify three courses or study fields I'm interested in following after grate 12 write them down and in order of preferences provide two reasons of each choice
asked by sam 
SCIENCE
At 500K,1.00mol of ONCl is introduced into 2.50dm3 closed vessel.At equilibrium the ONCl is 6.5%dissoiated.What is the value of the Kc for equilibrium at 500K
asked by MAMBWE 
Math
A recipe for salt dough is one part flour and three parts salt. Express the amount of salt in recipe as a fraction. If you double the recipe to make the dough for crafts,using two cups of flour,how much salt will you need?
asked by OBINNAYA ELUWA 
ChemistryDrBob222
I got an answer of 1.34 x 10^3 KJ/mol. A 10.00 mL aliquot of 0.100 M NaOH is added to 15.00 mL of 0.100M HCl in a coffee cup calorimeter. The initial temperature of the two dilute liquids were both 25.0 degrees C and the final temperature of the mixture
asked by Nevaeh 
physics
When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........
asked by rohit