Questions Asked on
February 23, 2015

Chemistry
For the reaction 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g), what volume of a 0.650 M solution of FeCl2 is required to react completely with 8.58 × 1021 molecules of O2?

Math
The 5th term of an arithmetic sequence is 22 and the 15th term is 62. Find the 100th term and the sum of the first 60 terms.

physics(waves)
A wave has a speed of 340m/s and a period of 0.28ms. what's the wavelength? so I worked this and I got 95.2m but the answer to d question says 0.095m. period(T) = 1/F (since F = 1/T) therefore, F = 1/0.28 = 3.5714 wavelength = velocity/frequency w =

Vectors
Verify using an example that Vector a + (Vector b • Vector c) is not equal to (Vector a + Vector b) • (Vector a +Vector c). (This means that addition does not distribute over the dot product.) Explain the problem that arises.

Vectors
Explain why it is not possible for Vector a • (Vector b • Vector c) to equal (Vector a • Vector b) • Vector c . (This means that the dot product is not associative.)

Business Math
Find the ordinary interest to the nearest cent. $19,000 at 12% for 101 days

trig
An airplane is traveling at a speed of 724 km per hour at a bearing of N30°E. If the wind velocity is 32 km per hour from the west, find the resultant speed and direction of the plane.

Vectors
Verify using a specific example that (Vector a + Vector b) × (Vector a – Vector b) = 2(Vector b×Vector a). Expand to the general case to prove that the result is always true.

Introduction to Computers
What is a limiting factor of EFS when compared to BitLocker?

history? help
Which of the following statements describes civil law? (1 point) It deals with crimes against society. Civil offenses are punishable with prison time. It deals with the relationships between individuals. Legal action for civil offenses is initiated by the

Physics
A cube of mass m1 = 6.8 kg is sitting on top of another cube of the same size and mass m2 = 0.7 kg while they are both in freefall. Ignoring any air resistance, what is the magnitude of the normal force with which the bottom cube is acting on the top

NIST banepa
A man can throw a stone 50m away.what is the maximum height to which he can throw the same stone?

Algebra
Spheres 1) Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number. :1,256ft^2*** :4,189ft^2 :1,089ft^2 :1,568ft^2 2) Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number. :1,257

dice probability (math)
if a pair of fair dice is rolled, what is the probability that we roll a total of five if we are given that the total is less than nine?

chemistry
In a constantpressure calorimeter, 60.0 mL of 0.310 M Ba(OH)2 was added to 60.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 23.44 °C to 27.66 °C. If the solution has the same density and specific heat as water,

algebra
A 24 meters pole is held by a three guy wire into vertical position. Two of the guy wires are of equal length. The third wire is 5 meters longer than the other two and is attached to the ground 11 meters farther from the foot of the pole than the two equal

Algebra
The current of a river moves at 3 miles per hour. It takes a boat 3 hours to travel 12 miles upstream, against the current, and return the same distance traveling downstream, with the current. What is the boats rate in still water?

Maths
Hi, What is the lowest positive integer greater than 1, which when divided by 5 or 8 leaves a remainder of 1 Thanks

English
 Words: ABSTAIN AFFILIATE AGNOSTIC ASPIRE BENEVOLENT DEFICIT DISSENT DIVERSION LUCRATIVE MANDATORY  12. My uncle decided to splurge and _____ with a country club because golf is

Vocabulary/Definiton
What is "profound language"? I want to know because I wanted to ask my teacher if we are allowed to use mild cusses in our poem, and I was wondering if "profound language" meant that specifically. I have heard this phrase before, but I interpreted as a

Vectors
Use a specific example to explore how the cross product behaves under scalar multiplication. Is it true that k(Vector a × Vector b) = (kVector a) × Vector b = Vector a × (kVector b)? Expand to the general case to prove your theory.

Vectors
b) Explain why (Vector a • Vector b) × Vector c does not exist.

Chemistry
In general, do transition metals or main group elements tend to have higher melting points? According to a article, the FeCoNi alloy tended to have a uniform structure when only Fe, Co, and Ni were included. With Al and Si, however, it had more segregation

chem
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.10 of sodium carbonate is mixed with one containing 4.43 of silver nitrate. How many grams of silver nitrate are

calculus
State whether or not the following statements are true. Justify your reasoning.? a. Vector a • (Vector b + Vector c) = Vector a • Vector b + Vector a • Vector c b. Vector a × (Vector b + Vector c) = Vector a × Vector b + Vector a × Vector c c.

Vectors
Verify using an example that Vector a + (Vector b • Vector c) is not equal to (Vector a + Vector b) • (Vector a +Vector c). Explain the problem that arises

Math
divide $8.91 by 6 and round the quotient to the nearest cent.

physics
A piece of wire is wound exactly 100 times around a circular tube with a radius of 9.8 centimeters. Find the length of the piece of wire in meters.

math
A rectangular park has an area of 2/3 square mile. The length of the park is 2 2/3 the width of the park. What is the width of the park? I am confused on how to do this. I know lw=a A= 2/3 sq mi l= 2 2/3w but I do not understand how to find the width :/

Science please help
Which of the following types of pathogens can only reproduce itself if it takes over host cells? A fungi B bacteria C virus *** D protozoa am i right?

Science
A boy and girl sit on a seesaw of length 4m, balanced at its center. The girl sits at the far end and has a mass of 50kg. The boy is twice as heavy as the girl, and therefore sits midway between his end and the center. Then the girl is given a bag of

Vectors Math
The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, in Tesla (T). An electron

linear algebra
Which of the given subsets of R3 are subspaces? (a) The set of all vectors of the form [a;b;0] b)The set of all vectors of the form [a;b;c] where a > 0. c) The set of all vectors of the form [a;c;c] d) The set of all vectors of the form [a;b;c] where 2a

chemistry
sodium burns in chlorine to produce sodium chloride according to the reaction: 2Na(s) + Cl2(g) = 2NaCl(s). A student is asked to predict the mass of sodium chloride produced when 71 g of sodium is placed in a container of 200 g of chorine. The container is

Math
Native Americans made baskets like this one in the early 1900's. If two sides of the triangle shown on the basket measure 1/4 in., and the third side measures 3/8 in., what is the perimeter of the triangle?

chemistry
What is the specific heat of an object that weighs 25 g and when heated to a temp of 500K and dropped into 100mL of water changes the temp of the water from room temp (293K) to 306K? Cp of water= 4.184

Algebra
Determine the solution set of 2x3y

Biology  Genetics
What is the expected genotypes and phenotypes of F1 flies in the cross between virgin brown eyed female with scarlet males (genes for brown and scarlet eyes are on different autosomes)? I know that brown eyes and scarlet eyes are both recessive but I'm not

chemistry
Suppose that the reaction of Fe3+ and SCN produces Fe(SCN)2 (+). 5.00mL of 2.0mM Fe3+ is mixed with 5.00 mL of 2.0mM SCN. The student finds the equilibrium concentrations of Fe(SCN)2(+) to be 0.3mM. 1.) What is the initial number of moles of each species

Math
Which of the following is a measure of an obtuse angle? A. 40 degrees B. 100 degrees C. 90 degrees*** D. 180 degrees I am most certain it is C?

Math
Which of the following is the measure of an acute angle? A. 180 degrees B. 135 degrees C. 90 degrees D. 28 degrees**** It's D right?

history
Which of the following distinguished the Middle Colonies from New England and the Southern Colonies? A. peace treaties with Native Americans B. representative government C. prohibition of slavery D. ethnic and religious diversity

Psych 42 (Stats)
A comprehensive study of juvenile delinquency is conducted in every staterun reform school in Canada. A scale called the Antisocial Beliefs Scale is given to all juvenile delinquents. The mean (μ) of the scale is 71 and the standard deviation (σ) is 5.

geography
how did japan first become introduce to chinese culture

Chemistry
Write the rate law for the reaction, expressing k(overall) in terms of k1, k2, and k3. Step 1: UV light + Cl2(g) ⇄ 2Cl(g) Fast, Endothermic Step 2: Cl(g) + O3(g) > OCl(g) + O2(g) Slow, Endothermic Step 3: OCl(g) + NO(g) > NO2(g) + Cl(g) Fast,

geography
command system of mongols

Math
A store has 21 bikes and scooters. If there are a total of 54 wheels, how many of each are there?

History
What made the British model of limited monarchy with substantial parliamentary involvement more stable than French absolutism during the 18th Century? thanks!!

[Calculus] Usubstitution for Integrals
Integrate from 1 to 5 of (3x5)^5 dx = Integrate from a to b of f(u) du where (I have solved this part) u = 3x5 du = 3 a = 0 b = 12 The original value of the integral is 165888 via calculator here's my last question, and it has to be in terms of u: f(u) =

english lanuages
How do °? write a reflective essay about "°? am" can you please how mean 350400 words

Chemistry
A researcher studying the nutritional value of a new candy places a 5.80gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.93 °C. If the heat capacity of the calorimeter is 38.50

Chemistry
At constant volume, the heat of combustion of a particular compound is –3949.0 kJ/mol. When 1.331 g of this compound (molar mass = 141.44 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 3.837

chemistry
An 80.0gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 6365 J. What is the specific heat of the gas?

math
at a certain time of day a 5 foot 11 inch woman casts a 3 foot 11 inch shadow. how tall is a nearby tree that casts a 14 foot 5 inch shadow at the same time of day?

English
A food chain is part of a bigger system called a food web. That web links the living things in an ecosystem. The herbivores in that system depend on the plants. If the plants are removed, the herbivores cannot survive. Then the carnivores, the animals that

Math
If 8 students eat apples and 12 students eat bananas, how many students eat apples or bananas?

physics
In being served, a tennis ball is accelerated from rest to a speed of 25.5 m/s. The average power generated during the serve is 2920 W. Assuming that the acceleration of the ball is constant during the serve, find the force acting on the ball.

Math
I have to find the median of 0, 1, 2, 3, 4, 5, 6, 7, 8. There is no data in 5 or 7. Would the median still be 4? Thanks for your help

life orientation
Six symptoms of intrapersonal conflict

solution making/ chemistry/biotech
You have 750ml's of a solution that was originally made up using a 20X stock. How much stock was used? I think the answer is 3.75 by dividing 750/20 but I am not sure

crime
What is street crime considered to include? As well as whitecollar, corporate, and state crime?

Crime and Society
Discuss how society decides what to define as a crime.

Solution Making
Suppose you start with a 5X solution A, and you want a final volume of 10ul of 1X solution. How much Solution A do you need? Can you please check my work not sure. I need 2 ul of solution A to 8 ul of H2O. 5/1=.2*10=2

Crime and Society
What is an example of a widely held myth or misconception about crime and society?

chemistry
How many milliliters of 0.316 M KOH are needed to react completely with 58.0 mL of 0.297 M FeCl2 solution to precipitate Fe(OH)2? The net ionic equation is: Fe2+(aq) + 2OH(aq) → Fe(OH)2(s)

english
the outsiders page 63 imagery compare the picture with the situation

Science
Which of the following is an indication that a planet may exist near a distant star A. the star varies in temperature B. The star has a very slight back and forth motion C. the star has very strong gravity D. Radio wave activity increases near the star I

geometry
How can you tell that the distance from the top of a ladder to the ground is longer than the distance from the base of the ladder to the wall?

Physics
A bead slides without friction around a looptheloop. The bead is released from a height of 18.9 m from the bottom of the looptheloop which has a radius 7 m. The acceleration of gravity is 9.8 m/s^2. What is its speed at point A ? Answer in units of m/s.

Physics
A garden roller is kept at rest on a slope that makes an angle of 30 degrees the horizontal by an upward force of 2 500N parallel to the slope. 1. Calculate the mass of the roller? 2. Determine the magnitude of the force exerted by the surface on the

English
Okay, So I didn't post this one because I thought I had it right.. but now im unsure. My school appeared on the news last week because we had made an important change in our community. Our 8th grade class had planted a large garden in what was once only a

Math
I have a table with x and y. x = 0, 1, 2, and 3. y=2xsquared. My answers are 0 = 0, 1 = 4, 2 = 16, and 3 = 36. Am I right? Thanks.

Science
What is Genetics?

Chemistry
what is the trend in the atomic radii as the atomic number increases across a period? What is the exception to this trend? I know the radius decreases as you go from left to right, but I can't figure the exception, I read somewhere that it's the noble

science
A ball sitting on the top of a table has potential energy but no kinetic energy. How do potential and kinetic energy change as the ball falls off the table to the floor? A. Both its potential energy and its kinetic energy decrease. B. Both its potential

chemistry
A closed container with a mixture of hydrogen, helium, and argon has a total pressure of 2.55 atm. The partial pressure of hydrogen is 0.700 atm and the partial pressure of argon is 705 mm Hg. What is the partial pressure of helium?

Finance
the existing or current (spot) 1, 2, 3, and 4year zero coupon Treasury security rates were as follows: 1R1 = 0.30%, 1R2 = 0.90%, 1R3 = 1.30%, 1R4 = 1.45% Using the unbiased expectations theory, calculate the 1year forward rates on zero coupon Treasury

physics
Stuck on solving for unknowns in part F and G help please? a) the upper loop 1 18I12+ 13I18=30 (b) the lower loop 2 =5.00I36  18I12= 24 (c) the node on the left side 3 I12+I36=I18 (d) Solve the node equation for I36. 4 I12  I18 =I36 e) Using the equation

physics
A car traveling at 20 m/s stops in a distance of 50 m. Assume that the deceleration is constant. The coefficients of friction between a passenger and the seat are µs = 0.5 and µk = 0.03. Will a 70kg passenger slide off the seat if not wearing a seat

geography
how did geographic features affect the development of japan

science
How do water and air cause rocks to crumble?

science
How are weathering and soil formation related?

math
sal spent $6 out of $12. what percent of his money did he use

Physics
How to determine the work done on the object with a FCosTheta(Y axis)Displacement(X axis) graph.

math
have orange juice and mango juice. i have 0.5 liters more orange juice than mango juice. which could be the amounts of juice that I have?

math
How can i simplify this furthur: 5x(x3)/(x1)(5x15)

physics
Calculate the distance between the center of the earth and the center of the moon at which the gravitational force exerted by the earth on an object is equal in magnitude to the force exerted by the moon on the object.

math
A rally car traveled for 2 hours 40 minutes at an average of speed pf 120km/h. The car consumes an average of 1 liter of fuel for every 4 kilometers. A liter of the fuel costs shillings 59. Calculate the amount of money spent on fuel. Distance = 2 2/3h *

Math
Thank you Steve, sorry for the confusion. This is a chart with x's in the numbers (like a bin). There aren't any x's in 5 or 7. Would I exclude them and only use, 0, 1, 2, 3, 4, 6, and 8? Then my median would be 3. Correct? Thanks

chemistry
how to calculate nuclidic mass of 3He when its binding energy is 0.76 MeV

life oreintation
The link between intrapersonal conflict and relationship

science
What is the density value of octane at the pressure of 101.325kpa and temperature of 298K?

math
Todd had $44 in his wallet. he spent 30% of his money. how much money does he have left

Trigonometry
a person standing 400 feet from the base of a mountain measures the angle of elevation from the ground to the top of the mountain to be 25 degrees, the person then walk 500 feet straight back and measures the angle of elevation to now be 20 degrees, how

CHEMISTRY
Cite three methods of analysis of a substance from a given sple by titrimetric method of analysis. My answer is: direct method indirect method back titration method Is it right??

math
peter spent 20% of his money. he has $40 left in his pocket . how much did he go out with.

CHEMISTRY
What should be observed during titration? My answer: We observe the change in color and change in turbidity of the sol'n. Am I right? Please add more things to be observed during titration. THANK YOU!

[Calculus] Usubstitution for Integrals
Integral of cos(x)*a^sin(x) + C dx = Integral of cos(x)*sin(x)^a + C dx = Let a be a fixed positive number. I'm clueless is to how to solve for a...

Health
what is the blood vessel that returns blood to the heart from the rest of the body?

physics
What is the force a rock exerts if it's mass is 36,000 kg and the acceleration due to Gravity is 9.8 m/s2

physics
why we derive our hands upwards and backwards to catch the ball?

physics
The Speed By Which A Sound Travels In A Water Of Depth 300m,is 216km/h.Calculate The Time Taken By The Sound At That Depth.

math
what is 42% of 87

math
We need to find the length of AD. AB is 20cm, BC is 13cm and CD is 10 cm.

math
22 is what percent of 88

chemistry
Ideal Mixed Gas Law problems 1. What is the pressure generated by a mixture of 25.6 g SO2 and 12.6 g Ne in a container of 72.45 L and temperature of 131 K? 2. What is the pressure of a mixture of 5.80 moles Kr and 2.71 moles Xe in a container with a volume

math
17 is what percent of 51

Chemistry
The density of water at 30*C is 0.9956g/mL. If the specific gravity of acetic acid is 1.040 at 30*C, what is the density of acetic acid at 30*C?

Math
Diameter of a car wheel is 1.05 meter If car drives for 3.3 K.m how many rotations wheel rotates ?

math 107
Use the following diagram of a flowerbed of petunias to answer the following questions. This diagram is a rectangle with ½ a circle on each end. The circle diameter is 22 feet, while the length of the rectangle is 60 feet. If you draw an X in the middle

Math
Sue deposited $3000 in a savings account earning 2% interest over 8 years, what was the total interest Sue earned?

physics
how much heat must be removed from 14 lbs of aluminum block in order to cool it from 80 degrees fahrenheit to 15 degrees fahrenheit?

Algebra
Billy watchedb the clown car drive up to the circus and saw 14 clowns get out of one little car the clowns made up 56% of the performers in the circus how may performers were in the circus

math
Given that log y = log (10^n) solve for n.

Social Studies
1. What was "king" and the main topic of conversation in the South? (1 point) politics sugarcane cotton slavery

SS
2. Because many Southerners were unwilling to sell slaves to raise funds to build factories, they had no money to invest in businesses. Another name for this type of money is _____. (1 point) stocks bonds capital business mean

Social Studies
A Chinese family was usually headed by... A. Oldest relative. B. Strongest man. C. Oldest woman. D. Oldest man**** I think it's D but I'm not too sure.

math
ramon spent 60% of his $437 paycheck gifts for his friends .how much did he spend

child psychology in general
in conducting experiments to test scientific theories,exception a.can be ignored if they are few in number b.tend to disprove or substantially weaken the theory and must be reported c.suggest that the research method was faulty my answer is b

math
3+2(6z3+4)

math
simplifying radical expressions 3\/""""4""7" 250z x sorry it was hard to type some of the characters.so it's cube on outside of 250 z to the 4th, xto the 7th inside the radical sign

math
let two stochastically independent random variables y1 and y2 with the distribution b(n1,p1) and b(n2,p2) respectively,how find a confidence interval for p1p2 ?

math
what is 1/4 and 1/3 divided by

algebra
I am confused on how to solve this. 4/(x+4) + 4/5 =5/2

maths
First two terms of AP are 5 and 7.find its 11th term

Math
It's an irregular hexagon. The base of the hexagon is 12m, the length of one side is 9m, the length of the other sides are 5m, and 4m, the width of the other sides are 7m and 5m. What is the area of the hexagon ?

Social Studies
In Chinese society, the merchant ranked below the.. A. farmers & aristocrats*** B. landowners & traders C. aristocrats & priests D. bankers & farmers*** I think it might be either A or D

Wrld Hist
To what extent did the French Revolution represent a tangible political expression of Enlightenment ideals?

on the lines below, explain how you found how many
on the lines below, explain how you found how many long Amy's garden fence will be.

Science
What is DNA and RNA? How do it work? How does it reproduce? How does it mutate? How do things evolve?

math
bob wants to cover the floor of a room 3m wide and 4m long by squared tiles. if each square tile is of side 0.5m,then find the number of tiles required to cover the floor of the room.

ElectroChem
Find the Emf for the cell Cr(gr)  Sn4+(aq, .059 M), Sn2+ (aq, .059 M)  Fe3+ (aq, .15 M), Fe2+ (aq, .015 M)  Pt(s) if the standard cell emf is .77 V at the cathode and .15 V at the anode. Answer in Units of V. If would be nice if you could show me step

life orientation
how intrapersonal conflict can be adressea through engaging in physical exercises,counselling and selftalk

math
jackie kept $75 out of the $80 she found on the streets of nyc what percentage did she use

algebra
Sandra has ribbons that are 3/4 yard, 2/6 yard, and 4/7 yard long. She needs to use the ribbon longer than 2/3 yard to make a bow. Which length of ribbon could she use for the bow.

algebra
1. 5x^(4) 2. 1/x^(5) 3. (14a^3) (2a^2) 4. 7g^4 g^(1) 5. (3x)^3 x^5

algebra
A package of modeling clay was shaped like a cone with a radius of 25 cm and a height of 7.2 cm. Miriam used all the clay to make a cylinder with a radius of 15 cm. What was the height of the cylinder? Express the answer to one decimal place and use 3.14

Chemistry
what is the trend in the atomic radii as the atomic number increases across a period? What is the exception to this trend? I know the radius decreases as you go from left to right, but I can't figure the exception, I read somewhere that it's the noble

math
let two stochastically independent random variables y1 and y2 with the distribution b(100,p1) and b(100,p2) respectively,y1=50 and y2=40 ,find 90% a confidence interval for p1p2 ?

Physics
The magnitude of the velocity of a projectile when it is at its maximum height above ground level is 12 m/s. (a) What is the magnitude of the velocity of the projectile 1.7 s before it achieves its maximum height? (b) What is the magnitude of the velocity

social studies
Confucius believed that society would do well if everyone always did his or her... A. duty*** B. prayers C. jobs D. best I think it is A

Vectors Math
For any vector find Vector a × Vector a. Explain your result.

math
hahn had $25 left in her purse after shopping and spending 20%of her money.how much did she leave to go shopping

ELA
in an article called " Buzz Off " by Kirsten Weir. I need help... 6. what are two consequences of spraying insecticides to get rid of mosquitoes? 7. how are the Oxitec mosquitoes different from the mosquitoes that Anthony James engineered?

English
What are the verbals in these sentences and are they gerunds or participles? The dog reacted by racing around the corner, dashing across the kitchen, and skidding to a stop. In the finished commercial, the chuck wagon disappears right through the cabinet

biology
what is one advantage of using e. coli to study bacterial growth rates?

Science
You have a block of ice with a mass of 6.12 . The volume of the water is 100L and the volume of water when the ice is in the water is 106.66L. I subtracted 100.00 and 106.66 to get 6.66L as the volume of the ice What I'm confused about is how to divide

Criminology
I have to argue the Buck V. Bell case, and I need to know if the case were taken to court today what would the outcome be? can someone give me some starters to begin my lengthy response?

Science
Which of the following types of pathogens can only reproduce itself if it takes over host cells? A fungi B bacteria C virus *** D protozoa am i right?

Vectors
Use a specific example to prove that the cross product is also not associative. That is, use three specific vectors in 3sapce to show that Vector a×(Vector b × Vector c) is not equal to (Vector a × Vector b) × Vector c.

life orientation
The conflict exists between the should and wants

Vectors
Verify (Vector a + Vector b) × (Vector a + Vector b) = 0⃗ . What can be said about two vectors whose cross product is the zero vector?

life orientation
What extent can intrapersona conflict affect choice of a career

Vectors
a) Let Vector a = (3, 4, 1), Vector b = (5, 2, 3) and Vector c = (0, 1, 3). Find the triple product, Vector a • (Vector b × Vector c).

Math
Draw a parallelogram with an area of 48 sq cm with a decimal factor oft the length ,width or both

algebra
write each number in scientific notation 1) 0.000089 2) 456.981

Life Orientation
Compare in fire ways the similarities and the differences between NFSAS and other student loans

Vectors Math
Find the area of a triangle with vertices A(1, 3, 5), B(2, 3, 4) and C(0, 3, 1).

physics
Two carts are involved in an elastic collision. Cart A with mass 0.55 kg is moving towards Cart B with mass 0.55 kg, which is initially at rest. Cart A stops after the collision and Cart B begins to move. What is the final kinetic energy of Cart B?

Vectors Math
A 5 N force which acts along the direction vector (2, 3), moves an object from A(1, 3) to B(3, 7). Find the work done if the given units are metres.

algebra
How can I find the Domain and Range for y=1/x 2 And y=4/x4 +4 they also ask me to compare these 2 problems with graph of y=1/x please help me solve these algebra problems.

Physics
Please help due in less than 2 hours!! A person whose mass is m = 86.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle α = 21.3° with the horizontal. What is the reading on the scale? i've tried m*g*sin(21.3) and

5th grade math
Marcus is building a rectangular box for his kitten to sleep in. He wants the area of the bottom of the box to be 360 square inches and the length of one side to be 1 3/5 the length of the other side. What should the dimensions of the bottom of the bed be?

algebra
A package of modeling clay was shaped like a cone with a radius of 25 cm and a height of 7.2 cm. Miriam used all the clay to make a cylinder with a radius of 15 cm. What was the height of the cylinder? Express the answer to one decimal place and use 3.14

HSM/220
Having trouble with Appendix C creating a budget using 1.6 million dollars

Algebra 2
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100cm and a return swing of 99cm.

Algebra
The sum of two numbers is 6. The result when the greater number is decreased by twice the lesser is 9. Let x be the greater number and y be the lesser number. Find the numbers. Thank you

english (antonyms)
what is the antonym answer to the puzzle.. nncntglty gvtk nt ftthn THANKKK YOUUU :)

Geometry
For Kite ABCD, if RA = 15 , and BD = 16, find AD.

HELP getting gray hair with this one
Pregnancy Test Results Positive Test Result (Pregnancy is indicated) Negative Test Result (Pregnancy is not indicated) Subject is pregnant 80 5 Subject is not pregnant 3 11 a) Based on the results in the table, what is the probability of a women being

physics
Water flows over the edge of a waterfall at a rate of 1.2 x 106 kg/s. There are 50.0 m between the top and bottom of the waterfall. How much power is generated by the falling water by the time it reaches bottom?

Physics
After a snowstorm a boy and girl decide to have a snowball fight. The girl uses a large slingshot to shoot snowballs at the boy. Assume that the girl fires each snowball at an angle 0 from the ground and that the snowball travel with an initial velocity of

Criminology
surveillence cameras have caught prison inmates teaching other inmates how to disarm an officer. Apply Sutherland's Differental Association theory to the prison subculture. How would i go about answering this?

precal
One campus of Houston community college has plans to construct a rectangular parking lot on land bordered on one side by a highway. there are 640 feet of fencing available to fence the sides. let x represent the length of each off the two parallel sides of

Math
A girl's club is selling hats to raise money. They ordered 500 hats that cost$5.15 each. They will sell the hats for $18.50 each. All the hats were sold. How do you find the amount of money the club made after expenses?

Math
Felisha worked at the library for three months.she earned $4,500.00 and must pay total of 15% in taxes,which includes federal withholding, Medicare, and social security taxes.What is her net pay? Show or tell how you got the answer A) $3,825.00 B)

art
where is the negative space in the rubin case?

Math
Hi, so I am supposed to calculate the volum of my prism as if it were a prism. I know I'm supposed to to do Volum=1/3* area of the base* height. But I get confused can you please help me. These are the measurements of my prism. Length=5cm Width=17cm

Math
If A(6,1) lies on the graph of h(x), find A^1 on the graph of j(x) if j(x) = h(3x) + 4

Math
Given f(5) = 5 and f(9) = 2 determine the equation of the linear function f

Math
A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft. Round to the nearest tenth, if necessary. 30 ft3 40 ft3 60 ft3 120 ft3 can someone please help me. I'm having trouble working this

History
Which was not a motivation for European exploration in the fifteenth and sixteenth centuries? the Muslim invasion of Spain the desire to find a sea route to Asia} my answer the promise of riches intellectual curiosity

government
what was the original executive order and how did this ruling impact the order???

3rd grade math
There are 24 students in Ms. Messing's class. Six more students walk to school than ride their bikes. The number of students that ride their bikes is the same as the number of students that are driven to school. How many students walk to school? Please

math concepts
Sarah understands that if there are 11 ones, the first 10 move over to the tens column as one unit (i.e., one group of 10). What concept does this understanding represent? A. Renaming B. Regrouping C. Borrowing D. Place value my answer a.

Algebra
Given: f(x) = 3x + 4 and g(x) =1/4x 3 find: (a) g(f(x)) (b) f(g(2)) (c) when f(g(x)) = 5

english
define literature

Science
What type of element is fluorine?

physics
The coefficients of static and kinetic friction between a 43 kg box and a horizontal surface are 0.72 and 0.20, respectively. (a) What is the acceleration of the object if a 135 N horizontal force is applied to the box? (b) What is the acceleration if the

physics
A ball which is at rest is dropped from a hight h meter as it bound off the flour its speed is 80% of what it was just before touching the ground the ball will rise nearly to rise of

Life skills
Why and how someone would prioritize their values?

Math
How many years old is a person if her age now is equal to her age in 3 years x 3, less 3 times her age 3 years ago?

social studies
Why did the creation of Israel cause conflict? A.Palestinians already claimed these lands. B.Arabs and Jews do not speak the same language. C.Israel did not have the support of Western nations. D.Britain controlled the new nation.

social studies
I need help check my answers. the * stands for my answer on 1 and 2 I have to answers cause im not sure if the answer is wrong I will put the 2nd answer later. 1. which of the following best describes daily life in the south during the civil war? about the

History
Which was a final action leading to U.S. participation in World War I? A. the bombing of Hawaii B. the addition of Mexico to the Allies C. unrestricted German attacks on submarines D.requests for support from England and France

math
Tanya guessed there were 65 beans in a jar. Her guess was off by 20. Bryan guessed there were 35 beans in the jar. He was off by 10. How many beans are in the jar? And how would I show my work?

Ap history
Which of the following is not an accurate matching of a U.S. President and his foreign policy? A.Franklin Roosevelt: Monroe Doctrine and the "speak softly and carry a big stick" policy B. Wilson: Moral Diplomacy C.Taft: Dollar Diplomacy D.Theodore

Chemistry
How much heat is needed to change 3kg of copper from a solid to a liquid? Heat of fusion = 205,000 J/kg

Finite Math
The price of a new car is $36,000. Assume that an individual makes a down payment of 25% toward the purchase of the car and secures financing for the balance at the rate of 10%/year compounded monthly. (Round your answers to the nearest cent.) What monthly

MATH
what is the rule of the function table if the input is 1,8,5,10 and the output is 4,6,1,5

History
In general, what was the Progressive movement and Progressive Era all about? (What is capital "P," Progressivism and how and why is it different from little "p" progressivism?)

PreAlgebra
1.) if m

SOCIAL STDIES HELP!
Georgia's Government and Law Are my ansers right? *** Which of the following statements about the state executive branch system of departments and agencies are true? Mark all that apply. (2 points) The system is comparable in purpose to the legislative

Math
What type of angle do construction workers use when building to make sure the walls and floors of a building are perpendicular? A. acute B. obtuse C. right D. straight*** I think it is D

SOCIAL STDIES HELP!
The constitutional officer who regulates health and safety issues for workers is the __________. (1 point) commissioner of insurance secretary of state*** attorney general commissioner of labor Which of the following positions is not a constitutional

Vectors Math
Use a specific example to prove that the cross product is also not associative. That is, use three specific vectors in 3sapce to show that a×( b × c ) is not equal to ( a ×b ) × c.

History
Why did Louis XIV’s France appear to be such a successful model for government in the 17th Century? Thanks

quick question
what are three programs financed from one payroll tax to which employers and employees contribute at a rate specified by law ?

math
you take a print measuring 14cm by 10cm from an old family photo album into a copy shop. what would be the measurement if the print was enlarged by a scale factor of 2.5?

physics
A 21.0kg child descends a slide 2.20m high and reaches the bottom with a speed of 1.40m/s . How much thermal energy due to friction was generated in this process?

Social studies
Why were bellows important to early blacksmiths?

physics
In a region where the electric field is constant, as it is between two oppositely charged parallel plates, is the voltage also constant?

Chem 111
How many grams of N2(g) would have to react to produce 19.5 kJ of energy

English
Sorry to ask this question again but what are some examples of realism in A Raisin the Sun in Acts two and three

math
Juanita wants to give bags of stickers to her friends. she wants to give the same number of stickers to each friend. she's not sure if she needs 4 bags or 6 bags of stickers. How many stickers could she buy so there are no stickers left over.

pleasse check social studies
The type of jurisdiction to consider the decisions of lower courts is known as _______________. (1 point) appellate original limited juvenile*** 2. Which of the following courts would hold jurisdiction over the violation of a parking ordinance in Atlanta?

Physics
An object experiences a constant acceleration of 4.0 m/s2 along the −x axis for 4s, obtaining a velocity of 31 m/s in a direction 30° from the +x axis. Find the initial velocity vector of the object. (The angle of the object is measured counterclockwise

Physics
A 5.5 kg block is released from rest on a frictionless inclined plane making an angle of 23.3° with the horizontal. Calculate the time it will take this block when released from rest to travel a distance of 0.7 m along the ramp.

English
Essay: Honor Introduction/Topic sentence: Courage, strength, and dignity is a very hard goal to achieve and to accomplish in ones life. Many have not succeeded in such a gift in their life but they took it for granted. How can you fix these two sentences

LA
What is the plot in the poem, "The Road Not Taken" and "O Captain! My Captain!"

Math
Eric and frank want to equally share 3/4

Physics
A plane is flying 250 m/s west with a crosswind of 25 m/s north affecting the flight. What is the magnitude and direction of the plane?

governement
What is the role of congress in foreign conflicts?

Math 222
Please help me solve and understand this.**MY PLUS AND EQUAL KEY IS NOT WORKING** F equals mv^2/r

Calculus 2
Let a thing rod of length a have a density distribution function p(x)+10e^(.1x), where x is measured in cm and p in grams per centimeter. A) if the mass of the rod is 30 g, what is the value of a? B) For the 30g rod, will the center of mass lie at its

English
Which one of the following words has more then four syilables

Social studies
Why is commerce important to a society?

Calculus 2
Consider a trough with triangular ends where the tank is 10 feet long, top is 5 feet wide, and the tank is 4 feet deep. Say that the trough is full to within 1 foot of the top with water of weight density 62.4 pounds/ft^3, and pump is used to empty the

Math
What is the domain of x/(x1)? Is it all x 1?

math concepts
Matthew sits at his desk unable to figure out the answer to a division problem. He reaches into his desk and pulls out a calculator. What is the correct response for Matthew's teacher to have? A. "Put that calculator away, you can't cheat on your work." B.

maths
The Twisted River had approximately 5,300 Chinook salmon in 2008. The population has been decreasing at a rate of 8% per year. Write a function that gives the population in terms of y years after 2008.

statistics
A comprehensive study of orphaned children is conducted in every orphanage in Australia. A scale called the Capacity for Attachment Scale is given to all orphaned children. The mean (μ) of the scale is 72 and the standard deviation (σ) is 13. Assuming

Intro to stats
A comprehensive study of juvenile delinquency is conducted in every staterun reform school in Australia. A scale called the Antisocial Beliefs Scale is given to all juvenile delinquents. The mean (μ) of the scale is 60 and the standard deviation (σ) is

Math
If Zachary takes 3 steps for every 2 steps Richie takes how nany steps will Zachary take if Richie takes 18 steps

Electricity and magnetism
A carbon atom's nucleus and its electrons become separated by 20nm. How much work does it take to separate them in Joules? In the previous problem if found that the magnitude of the force the nucleus feels towards the electrons is 2.07*10^11N. My first

LA
Why do you think the author wrote. "The Road Not Taken" and "O Captain! My Captain?"