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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
3 answers
asked by
Anonymous
6,586 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
2 answers
asked by
Sabrina
6,193 views
Write the acid-dissociation reaction of nitrous acid (HNO2) and its acidity constant expression.
3 answers
asked by
Lisa
5,922 views
The reaction:
H2PO4- + HAsO42 ---> HPO4- + H2AsO4- Which one of the sets above lists both of the base species involved in the
2 answers
asked by
Swaastikaa
5,684 views
What makes this an oxidation-reaction? 3Ag2S+2Al(s) -> Al2S3+6 Ag(s)?
Write the half-reactions showing the oxidation and
2 answers
asked by
princess
5,652 views
Yo ______ lavo ______ manos y ______ cara. ______ cepillo ______ dientes y ______ cepillo
______ pelo. Yo ______ pongo ______
10 answers
asked by
jack
4,108 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 answer
asked by
Tom
4,047 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
3 answers
asked by
Jeremiah
3,034 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
2 answers
asked by
Karien
3,015 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
4 answers
asked by
Melissa
2,777 views
A hardware supplier manufactures three kinds of clamps, type A, B, and C. Production restrictions force it to make 20 more type
1 answer
asked by
ROSE
2,750 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 answer
asked by
Shaman
2,749 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
2 answers
asked by
Lola
2,669 views
Use the following steps to balance the redox reaction below:
Mg + Au+ Mg2+ + Au a. Write the oxidation and reduction
3 answers
asked by
princess
2,382 views
How do you prepare a 0.4 M soultion of copper sulfate in water starting with solid copper sulfate and water?
1 answer
asked by
Amanda
2,332 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 answer
asked by
Elizabeth
2,313 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
2 answers
asked by
Melissa
2,242 views
The higher the temperature of an object, the ____________________. A) Neither of these.B) shorter the wavelengths of radiation
1 answer
asked by
Jim
2,173 views
how much aluminum oxide is needed to produce 1 kg of aluminum?
2 answers
asked by
jupta
1,969 views
Computer Depot is a large store that sells and repairs computers. A random sample of 110 computer repair jobs took technicians
2 answers
asked by
Jasmine
1,967 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
2 answers
asked by
Anonymous
1,949 views
According to newtons 1st law , construction workers are warned not to leave their hard hats on the rear window ledge of their
2 answers
asked by
Melissa
1,865 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
2 answers
asked by
BIBIN
1,806 views
The number of pizzas consumed per month by university students is normally distributed with a mean of 9 and a standard deviation
1 answer
asked by
Lucy
1,802 views
A movie theater manager wants to know how many adults and how many children pay admission to a particular movie. The theater
3 answers
asked by
Katy
1,747 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 answer
asked by
Jasmine
1,677 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
2 answers
asked by
Nick
1,666 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
3 answers
asked by
Brenna
1,659 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
3 answers
asked by
Melissa
1,654 views
The average annual salary of employees at Wintertime Sports was $28,750 last year. This year the company opened another store.
0 answers
asked by
Jasmine
1,620 views
Alison's car is valued at $14,000, and she owes $12,000 on it. What is her current equity?
2 answers
asked by
Lamar
1,599 views
The concentration of hydrogen ions in a batch of homemade ketchup is 10-4,. What is the pH level of the ketchup?
2 answers
asked by
Mary
1,584 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 answer
asked by
Tiffany
1,564 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?
3 answers
asked by
Anonymous
1,532 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
3 answers
asked by
Melissa
1,454 views
Many reaction involving heterogeneous catalysts are zeroth order, that is rate=k. An example is the decomposition of phosphine
3 answers
asked by
court
1,441 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
2 answers
asked by
Dee
1,418 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 answer
asked by
Lafix erassy
1,414 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.
2 answers
asked by
Jasmine
1,381 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 answer
asked by
Samantha
1,378 views
Solve the system of equations by substitution. Your answer should be given as an ordered pair like this (x, y). Round your
1 answer
asked by
Katy
1,349 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
5 answers
asked by
miki
1,308 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
2 answers
asked by
Jennifer
1,275 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?
6 answers
asked by
Melissa
1,239 views
At equilibrium, it was found that [CH3COOH] = 0.8537 M, [CH3COO-] = 0.0040 M, and [H3O+] = 0.0040 M. Calculate the acidity
10 answers
asked by
Lisa
1,236 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 answer
asked by
Anonymous
1,233 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 answer
asked by
Sarah
1,192 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 answer
asked by
jeezy
1,165 views
Tell whether each of the following substances that is filtered from the blood in the glomerulus is reabsorbed, excreted as part
1 answer
asked by
BIBIN
1,162 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
4 answers
asked by
Priyanka
1,141 views
A function f is defined on the interval [0,4], and its derivative is e^sinx-2cos3x
a. on what interval is f increasing? b. at
1 answer
asked by
Anonymous
1,099 views
Temperature is distinguished from heat when we note that whereas temperature is ____________________. A) None of these.B)
0 answers
asked by
Kristie
1,097 views
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the
2 answers
asked by
Jematormal91
1,082 views
A function f is defined on the interval [0,4], and its derivative is e^sinx-2cos3x
a. on what interval is f increasing? b. at
1 answer
asked by
Anonymous
1,064 views
1. Simplify, and write in the base of 3: (9^x . 3^4x)^2
answer: 3^12x 2. Differentiate and simplify a. y= 3x^4 - 4e^x + 8 answer:
1 answer
asked by
Help-please check
1,060 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
2 answers
asked by
Melissa
1,053 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
0 answers
asked by
Anna
1,045 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
0 answers
asked by
miki
1,020 views
Consider the HF solution with the concentration 5%(w/v). Calculate its concentration in the molarity. Use four significant
1 answer
asked by
Lisa
965 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 answer
asked by
Katy
942 views
Fill in the blank.
1. Los amigos están viajando por un país europeo. Los amigos están viajando por _____________________. 2.
1 answer
asked by
Ren
924 views
2cos^2a*cos^2b+2sin^2asin^2b-1=cos2acos2b how to prove it,please help me
0 answers
asked by
A.L
921 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
2 answers
asked by
Kristina
921 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
2 answers
asked by
Tanner
915 views
If judicial review were eliminated, what alternative means could be used to interpret the meaning of the Constitution?
6 answers
asked by
Lisa
902 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
0 answers
asked by
AMBER
901 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
2 answers
asked by
Swaastikaa
897 views
2- A 0.310 M solution of a weak acid, HX, has a pH of 2.53
a. Find the [H+] and the percent ionization of nitrous acid in this
2 answers
asked by
bob
888 views
Part 5
Cash Budgeting Landis Company has the following sales forecasts for the selected three-month period in the current year:
0 answers
asked by
beth
884 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
4 answers
asked by
hania
883 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
0 answers
asked by
Jasmine
878 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
3 answers
asked by
Amanda
878 views
Tell whether each of the following substances that is filtered from the blood in the glomerulus is absorbed, excreted as part of
0 answers
asked by
BIBIN
877 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 answer
asked by
stumped
866 views
Options Menu: Forum
Topic: Interpreting the U.S. Constitution Consider the following scenario: The Supreme Court interprets the
6 answers
asked by
Lisa
844 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
0 answers
asked by
Jasmine
835 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 answer
asked by
court
831 views
A large furniture store has begun a new ad campaign on local television. Before the campaign, the long term mean daily sales
1 answer
asked by
Jasmine
815 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 answer
asked by
Bob
814 views
Butadiene can undergo the following reaction To form a dimer(two butadiene molecules hooked together). 2c4h8---->c8h12.
The half
1 answer
asked by
court
802 views
A study is being planned to estimate the mean number of semester hours taken by students at a college. The population standard
0 answers
asked by
Jasmine
790 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 answer
asked by
Anonymous
782 views
The difference between energy radiated from the sun and energy radiated from the Earth has to do with ____________________. A)
1 answer
asked by
Kristie
777 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 answer
asked by
Kelsey
771 views
What does a thermohygrometer do?
1 answer
asked by
anne
770 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?
0 answers
asked by
Anonymous
759 views
Dean associates certain activites,roles, and traits as being typical for either males or females.His associations conform to
2 answers
asked by
sarah
750 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
4 answers
asked by
jenna
735 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 answer
asked by
Anonymous
732 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
0 answers
asked by
Kristina
730 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 answer
asked by
jessie
724 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 answer
asked by
CRT angel
714 views
Both Fe2+ and Cd2+ are precipitated by sulfide. However, they can be quantitatively separated through pH adjustment. You are
1 answer
asked by
Tanner
712 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 answer
asked by
jamie
702 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 answer
asked by
Samantha
693 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
2 answers
asked by
miki
689 views
(4.44e-2 - x) (8.06e-2 - x) / (0.331 + 2x)^2 = 1.80e-2
I need to rearrange this equation so that I can get a,b, and c, for the
3 answers
asked by
Hannah
688 views
Why would the Chinese want to limit population growth?
1 answer
asked by
Jess
684 views
1.
Temperature is distinguished from heat when we note that whereas temperature is ____________________. A) None of these.B)
0 answers
asked by
Kristie
683 views
A 650N man jumps out of a window into a fire net 8m below. The net stretches 1.5m before bringing the man to rest and tossing
1 answer
asked by
Stephen
681 views
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