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Questions Asked on March 25, 2012

A train is moving parallel to a highway with a constant speed of 16.0 m/s. A car is traveling in the same direction as the train
1. 3 answers
2. asked by Anonymous
3. 6,515 views
A person can order a new car with a choice of 9 possible colors, with or without ac, with or without heated seats, with it
1. 2 answers
2. asked by Sabrina
3. 6,164 views
Write the acid-dissociation reaction of nitrous acid (HNO2) and its acidity constant expression.
1. 3 answers
2. asked by Lisa
3. 5,835 views
The reaction:H2PO4- + HAsO42 ---> HPO4- + H2AsO4- Which one of the sets above lists both of the base species involved in the
1. 2 answers
2. asked by Swaastikaa
3. 5,632 views
What makes this an oxidation-reaction? 3Ag2S+2Al(s) -> Al2S3+6 Ag(s)?Write the half-reactions showing the oxidation and
1. 2 answers
2. asked by princess
3. 5,564 views
Yo ______ lavo ______ manos y ______ cara. ______ cepillo ______ dientes y ______ cepillo______ pelo. Yo ______ pongo ______
1. 10 answers
2. asked by jack
3. 4,038 views
A 4.5 cm tall object is placed 20 cm in front of a spherical mirror. It is desired to produce a virtual image that is upright
1. 1 answer
2. asked by Tom
3. 3,983 views
A rifle with a mass of 1.2 kg fires a bullet with a mass of 6.0 (0.006kg). The bullet moves with a muzzle velocity of 600 m/s
1. 3 answers
2. asked by Jeremiah
3. 2,979 views
A 60kg front seat passenger in a car moving initially with a speed of 18m/s (40 MPH) is brought to rest by an air bag in a time
1. 2 answers
2. asked by Karien
3. 2,962 views
How much applied force is needed to accelerate a 2.0 kg block of wood at 4.0m/s^2 along a rough table, against a 10 N force of
1. 4 answers
2. asked by Melissa
3. 2,711 views
When you measure your heart rate for less than 20 seconds , why is it less possible for the results to be reliable?When you
1. 1 answer
2. asked by Shaman
3. 2,711 views
A hardware supplier manufactures three kinds of clamps, type A, B, and C. Production restrictions force it to make 20 more type
1. 1 answer
2. asked by ROSE
3. 2,696 views
A 20-year, $1,000 par value bond has a 9% annual coupon. The bond currently sells for $925. If the yield to maturity remains at
1. 2 answers
2. asked by Lola
3. 2,645 views
Use the following steps to balance the redox reaction below:Mg + Au+ Mg2+ + Au a. Write the oxidation and reduction
1. 3 answers
2. asked by princess
3. 2,318 views
How do you prepare a 0.4 M soultion of copper sulfate in water starting with solid copper sulfate and water?
1. 1 answer
2. asked by Amanda
3. 2,307 views
A 3.00x10^-3 kg lead bullet enters a target with a speed of 2.00x10^2 m/s and comes to rest within the target. Calculate the
1. 1 answer
2. asked by Elizabeth
3. 2,263 views
A jet plane pilot decides to accelerate horizontally. If the thrust of the engine is increased to 50 000 N at a time when the
1. 2 answers
2. asked by Melissa
3. 2,203 views
The higher the temperature of an object, the ____________________. A) Neither of these.B) shorter the wavelengths of radiation
1. 1 answer
2. asked by Jim
3. 2,138 views
how much aluminum oxide is needed to produce 1 kg of aluminum?
1. 2 answers
2. asked by jupta
3. 1,931 views
What volume of hydrogen gas measured at 27celcius and 723 torr may be prepared by the reaction of 8.88 grams of gallium with an
1. 2 answers
2. asked by Anonymous
3. 1,921 views
Computer Depot is a large store that sells and repairs computers. A random sample of 110 computer repair jobs took technicians
1. 2 answers
2. asked by Jasmine
3. 1,915 views
According to newtons 1st law , construction workers are warned not to leave their hard hats on the rear window ledge of their
1. 2 answers
2. asked by Melissa
3. 1,824 views
The number of pizzas consumed per month by university students is normally distributed with a mean of 9 and a standard deviation
1. 1 answer
2. asked by Lucy
3. 1,765 views
If 3 is subtracted from the numerator of a certain fraction, the value becomes 2/3. If 10 is added to the denominator of the
1. 2 answers
2. asked by BIBIN
3. 1,754 views
A movie theater manager wants to know how many adults and how many children pay admission to a particular movie. The theater
1. 3 answers
2. asked by Katy
3. 1,669 views
How long does it take to have food delivered? A Chinese restaurant advertises that the mean delivery will be no more than 30`
1. 1 answer
2. asked by Jasmine
3. 1,636 views
Tom the train and Dan are involved in an elastic collision. A 2.5 kg Tom is, at rest but is approached head-on by a 5.0 kg Dan
1. 2 answers
2. asked by Nick
3. 1,630 views
. In which one of the following sentences ia an abbreviation used correctly?A. I had to go to the Dr. on Monday B. Martin is a
1. 3 answers
2. asked by Brenna
3. 1,623 views
A woman pushes a refrigerator across the floor at a steady speed of 20cm/s . If she has to push with a horizontal force of 400 N
1. 3 answers
2. asked by Melissa
3. 1,612 views
Alison's car is valued at $14,000, and she owes $12,000 on it. What is her current equity?
1. 2 answers
2. asked by Lamar
3. 1,566 views
The average annual salary of employees at Wintertime Sports was $28,750 last year. This year the company opened another store.
1. 0 answers
2. asked by Jasmine
3. 1,558 views
The concentration of hydrogen ions in a batch of homemade ketchup is 10-4,. What is the pH level of the ketchup?
1. 2 answers
2. asked by Mary
3. 1,550 views
4. A particle starts at the point (5, 0) at t = 0 and moves along the x-axis in such a way that at time t > 0 the velocity is
1. 1 answer
2. asked by Tiffany
3. 1,523 views
Given the function f(x)= e^2x(x^2-2)a. does the decreasing arc reach a local or global minimum? b. does f have a global max?
1. 3 answers
2. asked by Anonymous
3. 1,497 views
A jet plane is traveling at a constant speed in a straight line in level speed. What does this tell you about the forces acting
1. 3 answers
2. asked by Melissa
3. 1,414 views
Many reaction involving heterogeneous catalysts are zeroth order, that is rate=k. An example is the decomposition of phosphine
1. 3 answers
2. asked by court
3. 1,391 views
Maya bought a car for $15,000. To pay for it, she took a bank add-on interest loan at an annual interest rate of 9%. The loan
1. 2 answers
2. asked by Dee
3. 1,369 views
A convex mirror forms an image of height of 2.4 cm, If the radius of curvature of thr mirror is 40 cm, find the heihgt and
1. 1 answer
2. asked by Lafix erassy
3. 1,367 views
Mr. Crandall has assigned a term paper due at the end of the semester. He would like to know the average length of the papers.
1. 2 answers
2. asked by Jasmine
3. 1,338 views
in my science fair report school layout they want us to write a paragraph on testing my hypothesis and before that they asked us
1. 1 answer
2. asked by Samantha
3. 1,330 views
Solve the system of equations by substitution. Your answer should be given as an ordered pair like this (x, y). Round your
1. 1 answer
2. asked by Katy
3. 1,311 views
Which of the following would most likely cause rising air?A warm air and low pressure B cold air and low pressure C warm air and
1. 5 answers
2. asked by miki
3. 1,276 views
Which of the following situations cannot be represented by the integer 10?F a balloon rises 10 ft into the air G the stock
1. 2 answers
2. asked by Jennifer
3. 1,227 views
A 1200 kg boat accelerates steadily at 0.05 m/s^2 in a straight line . Are the forces on this boat balanced or unbalanced?
1. 6 answers
2. asked by Melissa
3. 1,203 views
A searchlight rotates at a rate of 4 revolutions per minute. The beam hits a wall located 9 miles away and produces a dot of
1. 1 answer
2. asked by Anonymous
3. 1,190 views
At equilibrium, it was found that [CH3COOH] = 0.8537 M, [CH3COO-] = 0.0040 M, and [H3O+] = 0.0040 M. Calculate the acidity
1. 10 answers
2. asked by Lisa
3. 1,185 views
JJ's boat will go 15 mph in still water. If he can go 12 mph downstream in the same amount of time it takes to go 9 mph
1. 1 answer
2. asked by Sarah
3. 1,156 views
Tell whether each of the following substances that is filtered from the blood in the glomerulus is reabsorbed, excreted as part
1. 1 answer
2. asked by BIBIN
3. 1,127 views
A 1.75-kg wooden block rests on a table over a large hole as in the figure below. A 4.60-g bullet with an initial velocity vi is
1. 1 answer
2. asked by jeezy
3. 1,115 views
A bucket of water with a mass of 4.0 kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 8.0 kg
1. 4 answers
2. asked by Priyanka
3. 1,086 views
Temperature is distinguished from heat when we note that whereas temperature is ____________________. A) None of these.B)
1. 0 answers
2. asked by Kristie
3. 1,063 views
A function f is defined on the interval [0,4], and its derivative is e^sinx-2cos3xa. on what interval is f increasing? b. at
1. 1 answer
2. asked by Anonymous
3. 1,055 views
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the
1. 2 answers
2. asked by Jematormal91
3. 1,039 views
A function f is defined on the interval [0,4], and its derivative is e^sinx-2cos3xa. on what interval is f increasing? b. at
1. 1 answer
2. asked by Anonymous
3. 1,020 views
1. Simplify, and write in the base of 3: (9^x . 3^4x)^2answer: 3^12x 2. Differentiate and simplify a. y= 3x^4 - 4e^x + 8 answer:
1. 1 answer
2. asked by Help-please check
3. 1,019 views
When the crampton coal-fired train engine was built in 1852 , its mass was 48.3t ( 1.0 t= 1.0*10^3) and its force capability was
1. 2 answers
2. asked by Melissa
3. 1,003 views
Which of the following would most likely cause rising air?A warm air and low pressure B cold air and low pressure C warm air and
1. 0 answers
2. asked by miki
3. 999 views
(a) A 2.20 cm high insect is 1.24 m from a 135 mm focal-length lens. What is the image distance?mm How high is the image? cm
1. 0 answers
2. asked by Anna
3. 995 views
Consider the HF solution with the concentration 5%(w/v). Calculate its concentration in the molarity. Use four significant
1. 1 answer
2. asked by Lisa
3. 927 views
Fill in the blank.1. Los amigos están viajando por un país europeo. Los amigos están viajando por _____________________. 2.
1. 1 answer
2. asked by Ren
3. 896 views
2cos^2a*cos^2b+2sin^2asin^2b-1=cos2acos2b how to prove it,please help me
1. 0 answers
2. asked by A.L
3. 895 views
Josh and Racquel sold cookies and brownies at the math club bake sale. The cookies cost $0.47 each, and the brownies cost $0.60
1. 1 answer
2. asked by Katy
3. 895 views
How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius
1. 2 answers
2. asked by Kristina
3. 889 views
The solubility products of AgBr and Ag3PO4 are 5.0 10-13 and 1.8 10-18, respectively. If Ag+ is added (without changing the
1. 2 answers
2. asked by Tanner
3. 878 views
An investment of $63,000 was made by a business club. The investment was split into three parts and lasted one year. The first
1. 0 answers
2. asked by AMBER
3. 868 views
If judicial review were eliminated, what alternative means could be used to interpret the meaning of the Constitution?
1. 6 answers
2. asked by Lisa
3. 864 views
Tell whether each of the following substances that is filtered from the blood in the glomerulus is absorbed, excreted as part of
1. 0 answers
2. asked by BIBIN
3. 848 views
Amy has a cube numbered 1 through 6. If she rolls the cube 30 times, how many times can she expect to roll a multiple of 3?
1. 1 answer
2. asked by stumped
3. 847 views
Part 5Cash Budgeting Landis Company has the following sales forecasts for the selected three-month period in the current year:
1. 0 answers
2. asked by beth
3. 837 views
The following system is at equilibrium,at 699K in a 5L container.H2(g)+I2(g)--->2HI(g) Kc = 54.9 Initially,the system had 2.50
1. 2 answers
2. asked by Swaastikaa
3. 836 views
2- A 0.310 M solution of a weak acid, HX, has a pH of 2.53a. Find the [H+] and the percent ionization of nitrous acid in this
1. 2 answers
2. asked by bob
3. 835 views
I don't get this at all.A beaker with 105mL of an acetic acid buffer with a pH of 5.00 is sitting on a bench top. The total
1. 3 answers
2. asked by Amanda
3. 833 views
Long term experience showed that after a type of eye surgery, recovery time has a mean of u = 5.3 days in a hospital. A random
1. 0 answers
2. asked by Jasmine
3. 820 views
A 1-kg mass (the blue mass) is connected to a 8-kg mass (the green mass) by a massless rod 67 cm long, as shown in the figure. A
1. 4 answers
2. asked by hania
3. 820 views
Options Menu: ForumTopic: Interpreting the U.S. Constitution Consider the following scenario: The Supreme Court interprets the
1. 6 answers
2. asked by Lisa
3. 812 views
The activation energy for the decomposition reaction,2 HI---> H2 + Hi Is 186 kj/mol. The rate at 555 k is 3.2 x 10 -7L/mol. Sec.
1. 1 answer
2. asked by court
3. 801 views
A random sample of 14 evenings at the O'Sullivan house hold showed that the family received an average of 2.4 solicitation calls
1. 0 answers
2. asked by Jasmine
3. 791 views
A large furniture store has begun a new ad campaign on local television. Before the campaign, the long term mean daily sales
1. 1 answer
2. asked by Jasmine
3. 774 views
The space station is going 17500 mph as it orbits the earth. How long will it take to orbit 1 time if the earths diameter is
1. 1 answer
2. asked by Bob
3. 769 views
Butadiene can undergo the following reaction To form a dimer(two butadiene molecules hooked together). 2c4h8---->c8h12.The half
1. 1 answer
2. asked by court
3. 764 views
A study is being planned to estimate the mean number of semester hours taken by students at a college. The population standard
1. 0 answers
2. asked by Jasmine
3. 757 views
The difference between energy radiated from the sun and energy radiated from the Earth has to do with ____________________. A)
1. 1 answer
2. asked by Kristie
3. 736 views
you can paint a room in 8 hours. your friend and you can paint a room in 5 hours together. how long does it take your friend
1. 1 answer
2. asked by Anonymous
3. 733 views
Given the function f(x)= e^2x(x^2-2)a. does the decreasing arc reach a local or global minimum? b. does f have a global max?
1. 0 answers
2. asked by Anonymous
3. 726 views
What does a thermohygrometer do?
1. 1 answer
2. asked by anne
3. 723 views
a person attaches a 25kg hay bale to one end of a rope passing over a frictionless pulley connected to a beam in the hay barn.
1. 1 answer
2. asked by Kelsey
3. 713 views
Dean associates certain activites,roles, and traits as being typical for either males or females.His associations conform to
1. 2 answers
2. asked by sarah
3. 711 views
A 15 kg child stands on the edge of a small merry-go-round of radius 2.0 m. If the merry-go- round turns at a steady rate of 11
1. 0 answers
2. asked by Kristina
3. 691 views
please help me if this is correct i have made for my homework.instruction is below: As a customer service manager for a local
1. 1 answer
2. asked by jessie
3. 688 views
A farmer wants to fence in 60 000m^2 of land in a rectangular field along a straight road. The fencing that he plans to use
1. 4 answers
2. asked by jenna
3. 682 views
Both Fe2+ and Cd2+ are precipitated by sulfide. However, they can be quantitatively separated through pH adjustment. You are
1. 1 answer
2. asked by Tanner
3. 675 views
The perimeter of a triangle is 52 centimeters. The longest is 2 centimeters less than the sum of the other 2 sides. Twice the
1. 1 answer
2. asked by CRT angel
3. 669 views
I need help writing a story using these words. Any Ideas?1.impute-- (v) to attribute an action to particular person or group
1. 1 answer
2. asked by Anonymous
3. 665 views
A person pushes a block up a frictionless incline at a constant velocity. The incline is 35o, and the mass of the block is 28
1. 1 answer
2. asked by jamie
3. 659 views
Which of the following has the greatest effect on the formation of rain or snow?A cloud cover B humidity C air pressure D
1. 2 answers
2. asked by miki
3. 656 views
Why would the Chinese want to limit population growth?
1. 1 answer
2. asked by Jess
3. 652 views
in my science fair report school layout they want us to write a paragraph on testing my hypothesis and before that they asked us
1. 1 answer
2. asked by Samantha
3. 652 views
scientific notation0.0000000005 5 x 10(-9)
1. 1 answer
2. asked by Cathy
3. 652 views
(4.44e-2 - x) (8.06e-2 - x) / (0.331 + 2x)^2 = 1.80e-2I need to rearrange this equation so that I can get a,b, and c, for the
1. 3 answers
2. asked by Hannah
3. 648 views
1.Temperature is distinguished from heat when we note that whereas temperature is ____________________. A) None of these.B)
1. 0 answers
2. asked by Kristie
3. 642 views

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