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Questions Asked on April 1, 2013

A 0.170 kg hockey puck is initially moving at 21.2 m/s [W] along the ice. The coefficientof kinetic friction for the puck and
1. 7 answers
2. asked by LG
3. 8,311 views
Calculate the standard free-energy change for the following reaction at 25 C degrees.2Au^3+(aq)+3Ni(s) <-- --> 2Au(s)+3Ni^2+(aq)
1. 2 answers
2. asked by Anon
3. 7,552 views
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 higher than in the
1. 2 answers
2. asked by jess
3. 6,335 views
a motorcycle traffic police starts from rest at point A two seconds after a car speeding at the constant rate of 120 km/h passes
1. 2 answers
2. asked by mahdi
3. 5,097 views
Use the molar volume to find the volume, in liters, of 6.40g of O2 at STP.
1. 2 answers
2. asked by kate
3. 4,008 views
Question 2.3 Consider a box that explodes into two pieces while moving with Fig. 9-24 a constant positive velocity along an x
1. 2 answers
2. asked by Michelle
3. 3,900 views
A 45-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 67 A and experiences a
1. 1 answer
2. asked by Anonymous
3. 3,287 views
How many different ways can you choose 3 frozen yogurt toppings from 20?6,840 1,140 60* 2,260 I think it is 60 because 3*20
1. 1 answer
2. asked by Kate
3. 3,285 views
exercise: The average number of sick days an employee takes per year is believed to be about 10. Members of a personnel
1. 2 answers
2. asked by yao
3. 3,204 views
One ordering of the letters T, U, V and Wfrom left to rightis UTVW. What is the total number of orderings of these letters from
1. 2 answers
2. asked by naomie
3. 3,165 views
The total fencing around a square field is 80 yards. The field has an area of how many square yards?
1. 2 answers
2. asked by mary
3. 3,112 views
A passenger on a boat moving at 1.70 m/s on a still lake walks up a flight of stairs at a speed of 0.60 m/s. The stairs are
1. 1 answer
2. asked by husree
3. 2,937 views
Would the following procedural errors result in an incorrectly high or low calculated percent NaOCl in commercial bleach
1. 1 answer
2. asked by Brooke
3. 2,714 views
Three cylindrical tubes with with a 12 in diameter are strapped together by a plastic band. How long is the band?Suppose that
1. 1 answer
2. asked by John
3. 2,448 views
Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5?
1. 2 answers
2. asked by Candice
3. 2,419 views
Please help!1. A taxi cost $2.25 for the first mile plus .15 for each additional tenth of a mile. For a 5.2 mile trip Eric paid
1. 2 answers
2. asked by Erin
3. 2,328 views
A sealed flask contains 1 mole of hydrogen and 3 moles of helium gas at 20DC. If the total pressure is 40kPa, what is the
1. 2 answers
2. asked by Christina
3. 2,213 views
How much work is done by the horizontal force F = 150 N on the 18 Kg block when the force pushes the block 5.0 M up along the 32
1. 3 answers
2. asked by Anyi
3. 2,180 views
A combination lock has a 1.2 cm -diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you grip
1. 1 answer
2. asked by Leanna
3. 2,139 views
How do you differentiate between fluorene and acetanilide? Suggest procedures and steps involved other than melting point and
1. 1 answer
2. asked by Albert
3. 2,088 views
Janice Jacobs is planning for her retirement. She knows what assets and liabilities she has now and expects to have in the
1. 1 answer
2. asked by bree
3. 2,062 views
A motel clerk counts his $1 and $10 bills at the end of a day. He finds that he has atotal of 56 bills having acombined monetary
1. 1 answer
2. asked by Evelyn
3. 2,054 views
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a
1. 1 answer
2. asked by Ben
3. 2,049 views
what is the slope of the graph? what does it mean in the context of the problem?the slope for the problem is 2 i don't
1. 1 answer
2. asked by lily
3. 2,031 views
IF ONE OF THE INTERIOR ANGLES OF A REGULAR POLYGON IS TO BE EQUAL TO (9/8) TIMES OF ONE OF THE INTERIOR ANGLES OF A REGULAR
1. 3 answers
2. asked by NISHI
3. 1,804 views
A galvanic (voltaic) cell consists of an electrode composed of magnesium in a 1.0 M magnesium ion solution and another electrode
1. 1 answer
2. asked by Anon
3. 1,776 views
Calculate Delta G at 298 K for the following reactions.Ca(s) + CO2(g) + 1/2O2(g) -> CaCO3(s) 2KClO3(g) -> 2KCl(s) + 3O2(g)
1. 1 answer
2. asked by Amy
3. 1,712 views
When a charged particle moves at an angle of 12° with respect to a magnetic field, it experiences a magnetic force of magnitude
1. 1 answer
2. asked by Anonymous
3. 1,649 views
190 students like the program135 students think the program is unnecessary 220 students plan on running for student government
1. 2 answers
2. asked by Katie
3. 1,609 views
A stone (on the edge of the roof) thrown from the top ofa building is given an initial velocity of 20.0 m/s straight upward. The
1. 2 answers
2. asked by hamze
3. 1,605 views
The drawing shows a sulfur dioxide molecule. It consists of two oxygen atoms and a sulfur atom. A sulfur atom is twice as
1. 1 answer
2. asked by Dee
3. 1,560 views
how many moles of aluminum are needed to react completly with 1.2 mol of FeO2Al(s)+3FeO(s)=3Fe(s)+ Al2O3(s)
1. 2 answers
2. asked by carlos
3. 1,462 views
The tortoise and the rabbit were in a 42 kilometer marathon. The rabbit can run 5 times as fast as the tortoise. Less than
1. 2 answers
2. asked by Hale
3. 1,384 views
a climber with a weight of 590 N is held by a belay rope connected to her climbing harness and belay device; the force of the
1. 1 answer
2. asked by ANS
3. 1,354 views
A company has two printers. Printer A prints a pages per minute, and Printer B prints b pages per minute. When Printer A prints
1. 3 answers
2. asked by Angie
3. 1,344 views
A large spool in an electrician's workshop has 52 m of insulation-coated wire coiled around it. When the electrician connects a
1. 1 answer
2. asked by Drue
3. 1,314 views
In the poem Dreams by Langston Hughes, Describe how the poem is structerd,or arranged in lines and stannnzas.
1. 1 answer
2. asked by Shay
3. 1,285 views
Which of the following required land to be paid for in gold or silver, instead of paper money?
1. 3 answers
2. asked by Anonymous
3. 1,234 views
You throw a tennis ball up in the air from an initial height of 4 feet and an initial velocity of 36 feet persecond. Will the
1. 1 answer
2. asked by Haiti
3. 1,226 views
Can I please get help on the questions for 'What do you get if a bunch of bad guys fall in the ocean?' on page E-53? Please
1. 5 answers
2. asked by Candy
3. 1,195 views
You are riding in a school bus. As the bus rounds a flat curve at constant speed, a lunch box with a mass of 0.550 suspended
1. 0 answers
2. asked by Sydney Wajcman
3. 1,184 views
A charge of - 0.15 C is moved from a position where the electric potential is 13 V to a position where the electric potential is
1. 1 answer
2. asked by Danielle
3. 1,158 views
5. Acceleration is a change in position and speed.True or false I think False
1. 3 answers
2. asked by Anonymous
3. 1,154 views
The price of cranberry juice suddenly increases. As a result, Glenda begins drinking more grape juice, which is less expensive,
1. 2 answers
2. asked by bree
3. 1,137 views
A stone is thrown from the edge of a cliff into the ocean below. It is thrown somewhat upward, but mostly outward. The stone has
1. 1 answer
2. asked by Jay
3. 1,118 views
Consider making a four-digit I.D. number using the digits 3,5,8, and 0a. How many I.D. numbers can be formed using each digit
1. 1 answer
2. asked by Karina
3. 1,116 views
Using the substitution method, what is the value of a in the solution to the system of equations below?a=3b+7 4a+9b=70
1. 2 answers
2. asked by Angie
3. 1,067 views
Salem and Vernon ville are 168 miles apart. A car leaves Salem traveling towards Vernonville, and another car leaves Vernonville
1. 1 answer
2. asked by Evelyn
3. 1,067 views
solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle è = 30o. The
1. 0 answers
2. asked by phil
3. 1,058 views
If you are driving down a 10% grade, you will always be 10% below where you would have been if you could have driven on flat
1. 1 answer
2. asked by sharon
3. 1,056 views
We are given 7 squares of side lengths 1, 2, 2, 2, 3, 4, 5. They can be fitted to form a rectangle, with no overlap or gaps
1. 1 answer
2. asked by Anna
3. 1,053 views
A SUM OF MONEY IS KEPT IN A BANK AT 8% INTEREST COMPOUNDED ANNUALLY.HAD THE INTEREST BEEN AT 10% COMPOUNDED SEMI ANNUALLY THE
1. 1 answer
2. asked by NISHI
3. 1,037 views
If you deposit P dollars into a bank account paying an annual interest rate r, with n interest payments each year, the amount A
1. 1 answer
2. asked by Amber
3. 1,035 views
Under pressure of 862kPa, a gas has a volume of 752ml. The pressure is increased, without changing the temperature, until the
1. 1 answer
2. asked by Jocelyn
3. 1,025 views
How to calculate the molarity of commercial bleach
1. 0 answers
2. asked by Brooke
3. 1,010 views
The molar mass of an unknown organic liquid (M~100) is determined by placing 5 mL of the liquid in a weighed 125-mL conical
1. 0 answers
2. asked by Someone
3. 966 views
A test charge of +3.00 10-6 C experiences a downward electrostatic force of 15 N when placed at a certain point in space. What
1. 1 answer
2. asked by Amy
3. 961 views
how do chromosomes move inside a cell during each stage of cell division?
1. 1 answer
2. asked by hannah
3. 959 views
Which of the following statements is an opinion?A. a pet depends on it's owner for it's very life B.every one should have a pet
1. 1 answer
2. asked by Anonymous
3. 938 views
A sample of 0.255 mole of gas has a volume of 748 mL at 28C. Calculate the pressure of this gas.
1. 0 answers
2. asked by Toni
3. 924 views
Joan Arlington has twice as much money invested at 5% simple annual interest as she does at 4%. If her yearly income does she
1. 1 answer
2. asked by Evelyn
3. 897 views
The annual per capita consumption of fresh apples (in pounds) in a nearby state can be approximated by a normal distribution,
1. 1 answer
2. asked by Ann
3. 892 views
Anna was opening a new restaurant, so she went to the sign store to get letters to make a sign to hang above the storefront.
1. 1 answer
2. asked by Anna
3. 881 views
1. When is the library open?It is open from 8 a.m. to 5 p.m. 2. What time is the library open? It is open from 8 a.m. to 5 p.m.
1. 1 answer
2. asked by rfvv
3. 866 views
Susan Borrowed $5000. The term of the loan is 12% compouned monthly for 3 years.what is the monthly payments? How much must she
1. 1 answer
2. asked by Rose
3. 859 views
1kg of fat is equal to 30MJ of energy.the efficiceny of converting fat to energy is 20%. suppose you life a mass of 12kg 2.0m
1. 1 answer
2. asked by Riana
3. 853 views
Suppose you wish to make a vertical leap with the goal of getting your head as high as possible above the ground. At the top of
1. 2 answers
2. asked by Leanna
3. 847 views
The following data were collected on non-conformancesfor a period of 10 days. Day Sample Size Non-conformances 1 100 12 2 100 14
1. 1 answer
2. asked by Sue
3. 845 views
use the asymptotes and intercepts to make a quick sketch of the function f(x)= x-2 (numerator) x+4(denominator) and its
1. 1 answer
2. asked by james
3. 826 views
At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of
1. 3 answers
2. asked by Riana
3. 823 views
A test rocket is fired up from rest. The net acceleration is 20m/s^2 upward and continues for 4.0 seconds, at which time the
1. 2 answers
2. asked by Kim
3. 793 views
For questions 7–11, each sentence is missing one type of punctuation. Choose the letter of the punctuation that correctly
1. 4 answers
2. asked by Anonymous
3. 781 views
block 1 has mass m1 = 480 g, block 2 has mass m2 = 540 g, and the pulley is on a frictionless horizontal axle and has radius R =
1. 0 answers
2. asked by ANS
3. 777 views
This is a matrix question.R is the matrix (3r 1) (s 2s) 1. State, in terms of s and r the determinant of R 2. If r=1/3 and s=4
1. 1 answer
2. asked by lindsay
3. 761 views
A combination lock has a 1.2 cm -diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you grip
1. 0 answers
2. asked by Leanna
3. 757 views
Multiple-Concept Example 9 reviews the concepts that are important to this problem. A light bulb is wired in series with a
1. 1 answer
2. asked by Drue
3. 755 views
A battery with an emf of 14.5 V and internal resistance of 0.83 Ω is connected across a load resistor R.If the current in the
1. 2 answers
2. asked by Ray
3. 749 views
The gravitational acceleration, g, on the Earth is proportional to the mass, M, of the Earth and inversely proportional to the
1. 2 answers
2. asked by Lorie
3. 740 views
a 23.74 ml volume of .0981 M NaOH was used to titrate 25 mL of a weak monoprotic acid solution to the stoichiometric point.
1. 0 answers
2. asked by Joann
3. 725 views
Suppose that the resistance between the walls of a biological cell is 4.9 × 10^9 ohms (a) What is the current when the
1. 1 answer
2. asked by Drue
3. 723 views
What is the angle relationship notes for the test i have to take? please help me someone thanks for the help you guys... oh yeah
1. 14 answers
2. asked by lola
3. 722 views
If the specific heat of water = 4190 J/kg /°C and a total of 120g of hot water at 95°C is poured into the calorimeter,
1. 2 answers
2. asked by Shay
3. 700 views
Calculate the grams of oxygen gas present in 2.5 L sample kept at 1.66 atm pressure and a temperature of 10 C.- I got 5.72 grams
1. 0 answers
2. asked by Shadow
3. 690 views
A stone is thrown from the edge of a cliff into the ocean below. It is thrown somewhat upward, but mostly outward. The stone has
1. 1 answer
2. asked by Jay
3. 688 views
The ratio of dimes to nickels is 2/3. He has $.75 innickels. How many dimes does he have?
1. 1 answer
2. asked by bella
3. 685 views
Word box adhere affirm atrocity audition cope deter disquieting empower fluent lag mangle misapprehension optimist prowl stupefy
1. 11 answers
2. asked by Jerald
3. 683 views
The annual per capita consumption of fresh apples (in pounds) in a nearby state can be approximated by a normal distribution,
1. 0 answers
2. asked by TJ
3. 681 views
What mass (in grams) of steam at 100°C must be mixed with 446 g of ice at its melting point, in a thermally insulated
1. 0 answers
2. asked by safc
3. 677 views
You and your friend, both of mass 70 kg, are playing catch with a frisbee on frictionless ice. Initially, you are both at rest.
1. 2 answers
2. asked by rohit
3. 660 views
A railroad car with a mass of 2.35 × 104 kg moving at 3.90 m/s collides and joins with two railroad cars already joined
1. 0 answers
2. asked by Jacqueline
3. 656 views
Why are fad diets considered unhealthy?
1. 1 answer
2. asked by melissa
3. 656 views
Can someone please tell me if I am doing this problem correctly. Thank you!Given: 450 mL (0.450L); 0.250 M KNO Need: Mass of KNO
1. 0 answers
2. asked by Kishwa
3. 655 views
Exercise :A machine is set up such that the average content of juice per bottle equals μ . A sample of 36 bottles yeilds an
1. 1 answer
2. asked by yao
3. 645 views
Julie throws a rock vertically upward. From a height of 64.0 meters above thehow ground. The initial velocity of the rock is
1. 1 answer
2. asked by kieshà
3. 642 views
A computer technician keeps track of his earnings throughout each month. the technician observes that his earnings are a linear
1. 4 answers
2. asked by Jayson Angole
3. 638 views
what is the slope of the graph? what does it mean in the context of the problem?the slope for the problem is 2 i don't
1. 0 answers
2. asked by lily
3. 629 views
Hi !Here is my question: The pythagorean theorem gives the relationships between the sides of a right triangle. The following
1. 2 answers
2. asked by Andrew
3. 625 views
The probability that Katarina will correctly solve a given Brilliant math problem is 1/8. The probability that Layla will solve
1. 3 answers
2. asked by rohit
3. 618 views
Two objects with masses 4.90 and 2.10 hang 0.800 above the floor from the ends of a cord 7.20 long passing over a frictionless
1. 2 answers
2. asked by Ben
3. 617 views
Na2SO4 solution is slowly added to a solution which contains .10 M Ba (2+) and .1 M Pb(2+). which of the following statements
1. 0 answers
2. asked by Joe
3. 616 views

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