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2012
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Questions Asked on October 8, 2012

A truck whose bed is 2.5m long, 1.5m wide,and 1m high delivering sand fro a sand-sculpture competition. How many trips must the
1. 17 answers
2. asked by hilly
3. 8,604 views
A ferry is crossing a river. The ferry is headeddue north with a speed of 1.7 m/s relative to the water and the river’s
1. 1 answer
2. asked by Crystal
3. 7,934 views
What volume of a 0.50 M solution of H2SO4 is required to completely neutralize 3.0 grams of NaOH? Write the equation.
1. 3 answers
2. asked by Nick
3. 5,810 views
what is the 1. chemical equation 2. complete ionic equation 3. net ionic equation include phase of HCH3COO+NaHCO3 pls correct my
1. 2 answers
2. asked by chemdummy
3. 5,574 views
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrationsA) 0.377 M B) 0.107
1. 1 answer
2. asked by Jordan
3. 4,592 views
Write a net ionic equation for the reaction that occurs when aqueous solutions of potassium hydroxide and nitrous acid are
1. 2 answers
2. asked by Megan
3. 4,316 views
Write a net ionic equation for the reaction that occurs when aqueous solutions of hydroiodic acid and barium hydroxide are
1. 2 answers
2. asked by Megan
3. 3,827 views
A blue car with mass mc = 410.0 kg is moving east with a speed of vc = 23.0 m/s and collides with a purple truck with mass mt =
1. 2 answers
2. asked by Mike
3. 3,799 views
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia.N2(g)+3H2(g)-->2NH3(g)
1. 2 answers
2. asked by Lynn
3. 3,748 views
What are three common types of products produced by reactions that occur in aqueous solutions? (out of the following)-gases
1. 3 answers
2. asked by Anya
3. 3,672 views
A man 6 feet tall walks at a rate of 5 feet/sec toward a street lamp that is 16 feet above the ground. At what rate is the tip
1. 1 answer
2. asked by Prabhakaran
3. 3,429 views
Suppose you are studying a population of sunflowers growing in a small field. How would you determine the population density of
1. 1 answer
2. asked by NEED HELP
3. 3,335 views
the integer 49 can be written as the sum of smaller perfect squares in a variety of ways. one such way includes six terms:
1. 5 answers
2. asked by shaun
3. 3,325 views
How is eight hundred twenty-six thousandths written in decimal form?
1. 6 answers
2. asked by Connor
3. 2,952 views
You measure two different pressures of the sealed vial containing air and ethanol at two different temperatures; 89027 mmHg at
1. 2 answers
2. asked by Anonymous
3. 2,651 views
The angle of elevation of the top of a flagpole from a point on the level ground is 30degrees. From another point on the ground
1. 2 answers
2. asked by Marydez
3. 2,586 views
find the derivative of f(x)=3x^2-x using the limit definition.
1. 2 answers
2. asked by Liz
3. 2,276 views
How much time is required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is
1. 2 answers
2. asked by Margaret
3. 2,212 views
a ball is thrown upward at 64 feet per second from the top of an 80 feet high building. The height of the ball can be modeled by
1. 2 answers
2. asked by nina
3. 2,142 views
In black and white photography, a photon energy of about 4.00 x 10 to the negative 19th power I is needed to bring about the
1. 1 answer
2. asked by Margaret
3. 2,072 views
How do you find the exact value of Sin(13pi)?
1. 1 answer
2. asked by George
3. 2,055 views
How many minutes are required for a radio signal to travel from Earth to a space station on Mars if Mare is 7.83 x 10 to the 7th
1. 1 answer
2. asked by Margaret
3. 1,982 views
Suppose 2 grams of an unknown metal carbonate MCO3 is reacted with excess HCl and 0.88 grams of CO2 are produced. What is the
1. 1 answer
2. asked by Anonymous
3. 1,782 views
Carefully retype this sentence using correct capitalization. Be sure to press Enter.to help prevent pollution, people could
1. 6 answers
2. asked by Anonymous
3. 1,744 views
two blocks of masses m1 and m2 (m1>m2) are placed on a frictionless table in contact with each other. A horizontal force of
1. 1 answer
2. asked by Lindsay
3. 1,713 views
One mole of carbon (12.0 g) in the form ofcrystalline graphite is burned at 25 ◦ C and 1.000 atm pressure to form CO2(g). All
1. 1 answer
2. asked by Sam
3. 1,668 views
A typical laboratory centrifuge rotates at 4100 rpm. Test tubes have to be placed into a centrifuge very carefully because of
1. 1 answer
2. asked by Mark
3. 1,637 views
1.write the first four terms of the sequence that begins with 2000 and has the common ratio 1.05.2.write the first four terms of
1. 1 answer
2. asked by britney
3. 1,602 views
Let f be the function defined by f(x)= sqrt(x), 0 <or= x <or= 4. and f(x)= 6-x, 4 < x <or= 6a. Is f continuous at x=4? justify.
1. 1 answer
2. asked by lisa
3. 1,567 views
weather balloon is directly west of two observing stations that are 10 mi apart. The angles of elevation of the balloon from the
1. 1 answer
2. asked by alth
3. 1,490 views
From the top of a 200-ft lighthouse, the angle of depression to a ship in the ocean is 23 degrees. How far is the ship from the
1. 3 answers
2. asked by Greg
3. 1,486 views
Planet Mars has a mass of 6.4 × 1023 kg, and you have a mass of 5.0 × 101 kg. What force of gravity is exerted between you and
1. 2 answers
2. asked by RajO5
3. 1,481 views
Consider the figure below. (Let w1 = 150 N and w2 = 38.0 N.)(a) What is the minimum force of friction required to hold the
1. 1 answer
2. asked by Kali
3. 1,474 views
A bicycle has wheels with a diameter of 0.630 m. It accelerates uniformly and the rate of rotation of its wheels increases from
1. 2 answers
2. asked by Emily
3. 1,440 views
A speed skater moving across frictionless ice at 9.0 hits a 5.1 -wide patch of rough ice. She slows steadily, then continues on
1. 1 answer
2. asked by Sabrina
3. 1,399 views
Given the balanced equation:a. Fe2O3+3C=2Fe+3CO: b. How many moles of Fe are produced when 1.36 moles of carbon monoxide are
1. 1 answer
2. asked by Noel
3. 1,380 views
When I name a title, like for example: The Battle of the Labryinth.- Do you capitalize O for of and T for the?
1. 3 answers
2. asked by Losa
3. 1,361 views
A car accelerates for 5 seconds at 2.1 m/s^2. If the car initially had a speed of 10 m/s, what is the new speed?
1. 1 answer
2. asked by Tori
3. 1,335 views
4. Which pope wanted Christians to unite to redress what he saw as an imbalance of power between Christianity and Islam?A. Pope
1. 2 answers
2. asked by jake
3. 1,335 views
you are driving your new car 14.0m/s east when you slam on your brakes to avoiavoid having your first collision. The force of
1. 3 answers
2. asked by paru
3. 1,330 views
A water tank has the shape of an inverted right circular cone whose base radius is equal to half its height. Water is being
1. 1 answer
2. asked by Lizzy
3. 1,292 views
1. How many moles of Al(CN)3 are in 199 g of the compound?2. 96.0 mol of P4O10 contains how many moles of P? 3. If 4.71 moles of
1. 2 answers
2. asked by Anonymous
3. 1,278 views
Reach each sentence then write each transitive verb. If a sentence has no transitive verb write noneI wonder why Maria looks so
1. 13 answers
2. asked by Jerald
3. 1,268 views
what property of addition is shown in the following number sentence? 7+(3+5)=(7+3)+5
1. 1 answer
2. asked by Amari
3. 1,256 views
A satellite circles the earth in an orbit whose radius is 2.01 times the earth's radius. The earth's mass is 5.98 x 1024 kg, and
1. 1 answer
2. asked by sammy
3. 1,220 views
A car is traveling north towards an intersection at 60mph at the same time a truck is headed east toward the same intersection
1. 2 answers
2. asked by erica
3. 1,198 views
What are some benefits of taking dietary supplements
1. 1 answer
2. asked by toya
3. 1,185 views
A rifle with a muzzle velocity of Vo shoots a bullet at a target R ft away. How high above thetarget must the rifle be aimed so
1. 1 answer
2. asked by ringo
3. 1,181 views
A medieval city has the shape of a square and is protected by walls with length 550 m and height 16 m. You are the commander of
1. 1 answer
2. asked by Jerry
3. 1,173 views
find the power by a man if he runs at constant speed of 5km/h along an ascending road which makes 5 degree with the horizontal
1. 2 answers
2. asked by ram
3. 1,124 views
Jan is standing on a roof of a building. She launches a water balloon upward at an initial speed of 44 feet per second at height
1. 1 answer
2. asked by Anonymous
3. 1,114 views
find dy/dx ofxsiny-ycosx=1
1. 1 answer
2. asked by Liz
3. 1,114 views
In a calorimetric experiment, 6.48 grams of lithium hydroxide was dissolved in water. The temp of the calorimeter rose from 25
1. 1 answer
2. asked by k-dawg
3. 1,114 views
an employee currently earning $10.85 per hour has been awarded a 3.5 percent merit raise. What will the employee's hourly salary
1. 2 answers
2. asked by tiff
3. 1,111 views
The volume V of a gas varies inversely as pressure P is exerted. If V = 4 liters when P = 3.5 atmospheres, find V when P = 2.5
1. 1 answer
2. asked by Anonymous
3. 1,103 views
A 1720-kg car is traveling with a speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring
1. 1 answer
2. asked by Donald
3. 1,094 views
Susan drove for 2 hours at 85 km/hr and then for 3 hours more at 95 km/hr. What was her average speed for the entire trip?
1. 2 answers
2. asked by Lori
3. 1,092 views
A jetliner with an airspeed of 1000 kmlhr sets out on a 1500 km flight due south. To maintaina southward direction, however, the
1. 1 answer
2. asked by ringo
3. 1,086 views
What is the implicit differentiation of x+y^2=cos(xy)?
1. 0 answers
2. asked by Anonymous
3. 1,085 views
Zinc reacts with hydrochloric acid according to the reaction equation:Zn(s)+2HCl(aq)->ZnCl2(aq)+H2(g) How many milliliters of
1. 2 answers
2. asked by Anna
3. 1,084 views
A skier squats low and races down an 11◦ ski slope. During a 3 s interval, the skier accelerates at 2.7 m/s^2 . What is the
1. 1 answer
2. asked by Sarah
3. 1,068 views
in track practice jesse ran a mile in 7 minutes. his mile time was 2.5 times faster than michaels time. write and solve an
1. 3 answers
2. asked by kathleen
3. 1,060 views
Find the exact value of thet following trigonometric functions:tan(5pi/6) tan(7pi/6) tan(11pi/6)
1. 1 answer
2. asked by Greg
3. 1,051 views
How do you solve 8x^3-24x^2+12x-4=0?
1. 1 answer
2. asked by sars
3. 1,051 views
A worker came to the employer and admitted to stealing money from the firm for personal use. What could the employer do now (to
1. 3 answers
2. asked by Steph
3. 1,048 views
If I takeB achelor in Science How many years it will take and what field it relates to?
1. 1 answer
2. asked by mariya
3. 1,036 views
A 15.0 mL sample of 0.250 M H2SO4 is neutralized by 20.5 mL of KOH solution. What is the molarity of the KOH solution?
1. 2 answers
2. asked by Audrey
3. 1,033 views
Samantha needs to solve the equationx2 - 12x = 40. What must she do to each side of the equation to complete the square?
1. 1 answer
2. asked by alexa
3. 1,032 views
Fran's little girl, Fifi, is a real tomboy. Fran asks you to explain why Fifi prefers rough play, boys' clothing and toys, and
1. 1 answer
2. asked by clara
3. 1,030 views
What are the base-five numbers for the base-ten counting numbers 1 to 26?
1. 0 answers
2. asked by Connor
3. 990 views
Suppose that a picture is 8 inches by 10 inches (width by height). You want to enlarge it so it is 20 inches wide. How tall will
1. 1 answer
2. asked by beatrice
3. 975 views
I dissolved two different white solids into water. One solid dissolved and gave off heat and the other became cold. Reading
1. 1 answer
2. asked by Sara
3. 974 views
A ball rolls horizontally off a 3.2 m high table and lands 2.2 m from the end of the table. What is the horizontal velocity of
1. 1 answer
2. asked by Sadie
3. 967 views
What is the mole fraction of ethanol when 5.00 mL of ethanol are combined with 10.00 mL of water?
1. 0 answers
2. asked by Anonymous
3. 959 views
find dy/dx(-x^2)(y)+2xy=3y^2-7
1. 1 answer
2. asked by Liz
3. 952 views
What equation would you use to show that the point ((square root of 11)/(6), (5/6))is on the unit circle?
1. 2 answers
2. asked by Greg
3. 933 views
A block of mass 0.4 kg rests on the inclined surface of a wedge of mass 1.7 kg. The wedge is acted upon by a horizontal force F~
1. 2 answers
2. asked by Amanda and Leah
3. 928 views
What is 1/4,4/7,1/2 from least to greatest?
1. 2 answers
2. asked by Decoriea
3. 926 views
Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3), and acetic anhydride (C4H6O3):C7H6O3 + C4H6O3 �¨ C9H8O4 + HC2H3O2 .
1. 0 answers
2. asked by rebekah
3. 920 views
Find the exact value of the following trigonometric functions:sin(13pi), cos(14pi), tan(15pi)
1. 1 answer
2. asked by Greg
3. 918 views
What is the dervative of ln(small 3 square root of (x^2)-3x+1)?Is it (2x-3)/3(ln(x^2)-3x+1)^(2/3)?
1. 0 answers
2. asked by Anonymous
3. 916 views
find each product(4a+1)(a-4)
1. 1 answer
2. asked by Allysiah
3. 902 views
Read each sentence then write each transitive verb. if a sentence has no transitive verb(direct object) write none.Example:
1. 5 answers
2. asked by Jerald
3. 898 views
A freight train is moving at a constant speed of Vt. A man standing on a flatcar throws a ballinto the air and catches it as it
1. 1 answer
2. asked by ringo
3. 880 views
Given the standard heats of reactionReaction ∆H0 M(s) + 2 X2(g) → MX4(g) −123.7 kJ/mol X2(g) → 2 X(g) +297.3 kJ/mol M(g)
1. 0 answers
2. asked by Austin
3. 875 views
Multiplying RabbitsSuppose that a pair of rabbits produces six offsrping: 3 males and 3 females. Assumes that no offspring die.
1. 1 answer
2. asked by Jen
3. 873 views
A car is traveling at 42.0 km/h on a flat highway.(a) If the coefficient of friction between road and tires on a rainy day is
1. 0 answers
2. asked by Kali
3. 861 views
"Stephenson Real Estate Company was founded 25 years ago by the current CEO, Robert Stephenson. The company purchases real
1. 0 answers
2. asked by Erica
3. 845 views
Find derivative of:g(theta) = cos^2(2theta-1)
1. 3 answers
2. asked by lizzy
3. 823 views
100 g of a clear liquid is evaporated and a few grams of white crystals remain. the original liquid was a..? Please help.
1. 4 answers
2. asked by T
3. 822 views
A 30lb sand bag falls off a hot air balloon floating stationary 5000ft above the ground what is the speed of the bag at the
1. 1 answer
2. asked by Jr
3. 820 views
what is the purpose of the labor law- executive order- created in 1965
1. 1 answer
2. asked by hannah
3. 803 views
2KClO3 ----> 2KCl + 3O2Calculate the number of grams of KClO3 decomposed given an initial sample mass of 2.16g and a residue
1. 2 answers
2. asked by Anonymous
3. 800 views
From previous experiments, you have the following information.N2(g)+O2(g)<--->2NO(g) Kc=2.3*10^-19 2NO(g)+O2(g)<--->2NO2(g)
1. 1 answer
2. asked by Allyx32
3. 798 views
Is the derivative of (squarerootof x)/(3x+1) : 3x+1-3squarerootofx/(2squarerootofx)(3x+1)^2
1. 2 answers
2. asked by Anonymous
3. 795 views
Explain the budget system model, its consistency with democratic theory, and the importance of data measures.
1. 0 answers
2. asked by Lisa
3. 794 views
A farm stand owner mixes apple juice and cranberry juice. How much should he charge if he mixes 8 L of apple juice selling for
1. 1 answer
2. asked by Steven
3. 791 views
What happens if the water hoses are incorrectly attached in a distillation apparatus - i.e. the water in and water out are
1. 2 answers
2. asked by Cassie
3. 784 views
A mass m1 = 10 kg on top of a rough horizontal table surface is connected by a massless cable over a frictionless wheel to a
1. 1 answer
2. asked by kim
3. 781 views
If you can throw a stone straight up to a height of 16m, how far could you throw ithorizontally over level ground? Assume the
1. 0 answers
2. asked by ringo
3. 781 views

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