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Questions Asked on February 19, 2010

copute the power output of a machine that lifts a 500 kg crate through a height of 20.0 m in a time of 60.0 s .book answer is
1. 2 answers
2. asked by eddy
3. 5,900 views
sentences using similes that describe waiting for a bus
1. 4 answers
2. asked by bo
3. 5,648 views
How many electrons and how many protons are in the ion Cr6+?
1. 2 answers
2. asked by Jenna
3. 5,214 views
A toy gun uses a spring to project a 5.3 g soft rubber sphere vertically. The spring constant is 8.0 N/m, the barrel of the gun
1. 1 answer
2. asked by nate
3. 4,148 views
A 2.50 g sample of a hydrate of calcium sulphate losses 0.523 g of water when heated. Determine the mass percent of water in the
1. 3 answers
2. asked by thao nguyen
3. 3,614 views
a truck drives up a hill with a 15 degree incline. if the truck has a constant speed of 22 m/s, what are the horizontal and
1. 3 answers
2. asked by Kayla
3. 3,521 views
A certain vinegar is 6.02% acetic acid (HC2H3O2) by mass. How many grams of HC2H3O2 are contained in a 355-mL bottle of vinegar?
1. 3 answers
2. asked by lucylu
3. 3,255 views
Pam, wearing a rocket pack, stands on frictionless ice. She has a mass of 44 kg. The rocket supplies a constant force for 22.0
1. 1 answer
2. asked by Dar
3. 2,901 views
Calculate the number of joules required to melt 57.4g of benzene at 5.5 degrees celsius?The heat of fusion for benzene is 9.87
1. 1 answer
2. asked by Jake
3. 2,785 views
the driver of a 1200 kg car notices that the car slows from 20 m/s to 15 m/s as it coasts a distance of 130 m along level
1. 2 answers
2. asked by eddy
3. 2,722 views
In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm
1. 2 answers
2. asked by Help!
3. 2,547 views
39. A) Identify a producer, herbivore, omnivore, and carnivore [in the ocean], explaining their roles in the path of energy
1. 3 answers
2. asked by mysterychicken
3. 2,337 views
The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was
1. 2 answers
2. asked by <3
3. 1,942 views
Two long, straight, parallel wires 8.0 cm apart carry currents in opposite directions.Use the right-hand source and force rules
1. 2 answers
2. asked by Lanise
3. 1,844 views
A 0.972g sample of a CaCl2*2H2O/K2C2O4*H2O solid salt mixture is dissolved in ~ 150ml of deionized water, previously adjusted to
1. 1 answer
2. asked by Maria
3. 1,721 views
The vapor pressure of CCl3F at 300 K is 856 torr. If 11.5 g of CCl3F is enclosed in a 1.0 L container, will any liquid be
1. 2 answers
2. asked by Elizabeth
3. 1,678 views
What are the horizontal and vertical components of a cat's displacement when it has climbed 5 m directly up a tree ?
1. 2 answers
2. asked by Michelle
3. 1,656 views
A fast food item contains 544 nutritional calories. Convert this energy to calories and to Joules
1. 1 answer
2. asked by Laverne
3. 1,641 views
a set of cards is numbered 1-20 what is the probability of choosing the card numbered 1
1. 2 answers
2. asked by savon
3. 1,547 views
Evaluate the limit using L'Hospital's rule if necessary.lim as x goes to +infinity x^(6/x)
1. 1 answer
2. asked by <3
3. 1,547 views
Two long, parallel wires separated by 50 cm each carry currents of 3.0 A in a horizontal direction.Find the magnetic field
1. 1 answer
2. asked by Lanise
3. 1,447 views
A 12-kg turtle rests on the bed of a zookeeper’s truck, which is traveling down a country road at 55 mi/h. The zookeeper spots
1. 3 answers
2. asked by mary
3. 1,426 views
An electron travels at a speed of 4.0×104 m/s through a uniform magnetic field whose magnitude is 1.4×10−3 T.What is the
1. 4 answers
2. asked by Lanise
3. 1,367 views
A 80 kg diver steps off a 10 m tower and drops from rest straight down into the water. If he comes to rest 5.0 m beneath the
1. 2 answers
2. asked by Nate
3. 1,355 views
First I sort the fractions into each title.Under the title Near 0 (zero) I have 2/19, 1/4, 2/5 Under the title Near 1/2 I have
1. 1 answer
2. asked by ST
3. 1,293 views
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 4000 N/C and 20
1. 1 answer
2. asked by Lanise
3. 1,287 views
the escalator that leads down into a subway station has a length of 30.0m and a speed of 1.8 m/s relative to the ground. student
1. 6 answers
2. asked by ShaD
3. 1,281 views
Upon what measurement is the Earth's latitude and longitude system based?
1. 1 answer
2. asked by Kate
3. 1,280 views
When 1.00 g of gaseous I2 is heated to 1000. K in a 1.00 L sealed container, the resulting equilibrium mixture contains 0.830 g
1. 0 answers
2. asked by Trixie
3. 1,195 views
A horizontal clothesline is tied between 2 poles, 20 meters apart.When a mass of 5 kilograms is tied to the middle of the
1. 1 answer
2. asked by Lalo
3. 1,190 views
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 35 km/h and the μs
1. 1 answer
2. asked by Andrew
3. 1,168 views
19. Which is NOT a general characteristic of plants?a. use oxygen to make usable energy b. primary producers c. have specialized
1. 0 answers
2. asked by mysterychicken
3. 1,157 views
A chunk of copper weighing 18.9 grams and originally at 97.63oC is dropped into an insulated cup containing 77.9 grams of water
1. 1 answer
2. asked by Jackson
3. 1,151 views
- In a normal pack of cards, write down the odds against picking each card.a) a diamond b) a jack c) a red 10 d) a black picture
1. 1 answer
2. asked by Kesha
3. 1,151 views
The function H described by H(x)= 2.75x+71.48 can be used to predict the height in centimeters, of a woman whose humerus is x cm
1. 1 answer
2. asked by Eleana
3. 1,141 views
What happens to the value obtained for the slope if the coordinates of the two ordered pairs aren't subtracted in the same
1. 2 answers
2. asked by rmz
3. 1,140 views
The circumference of a sphere was measured to be 88000 cm with a possible error of 050000 cm. Use linear approximation to
1. 2 answers
2. asked by John
3. 1,137 views
A prediction (educated guesses as to what the potential results may be) for each experiment listed below:1) knee-jerk reflex 2)
1. 2 answers
2. asked by David
3. 1,114 views
Please Helppp!!!!!!1)In the test with sodium iodide in acetone and silver nitrate in ethanol, why should 2-bromobutane react
1. 0 answers
2. asked by Ashley
3. 1,096 views
Could you please help me with this question:Determine the values of x so that the tangent to the function (y=3/cubic root of x)
1. 2 answers
2. asked by Kenny
3. 1,066 views
The fixed costs of oreparting a business are the costs include rent, fixed salaries, and costs of buying machinery. The variable
1. 0 answers
2. asked by liz
3. 1,047 views
A comet with a mass of 7.95 1011 kg strikes Earth at a speed of 22 km/s.(a) Find the kinetic energy of the comet in joules. ____
1. 1 answer
2. asked by Dar
3. 1,042 views
A solenoid is wound with 290 turns per centimeter. An outer layer of insulated wire with 200 turns per centimeter is wound over
1. 2 answers
2. asked by Lanise
3. 1,037 views
Say what energy changes are taking place:a)clockwork toy b)boy kicking soccer ball c)boiling kettle on a gas ring d)person
1. 4 answers
2. asked by Amir
3. 1,034 views
Select all cases where the substance shown has a molecular dipole.CH4 methane CH3CH2CH2CH3 butane ICl iodine chloride H2Se
1. 1 answer
2. asked by Arron
3. 1,033 views
Can anyone help me or help me get started please?ASSIGNMENTS 1. CheckPoint: Full-Sentence Outline • Resources: Organizing Your
1. 1 answer
2. asked by Anonymous
3. 1,027 views
[Continued from my last post]B) Explain where a detritivore and a decomposer could enter this path. Explain what they feed on on
1. 0 answers
2. asked by mysterychicken
3. 1,017 views
An endothermic process absorbs 138kJ. How many calories of heat are absorbed?
1. 1 answer
2. asked by Laverne
3. 1,003 views
Garden Area Problem. A designer created a gardenfrom two concentric circles whose equations are as follows: (x+2)^2+(y-6)^2=16
1. 3 answers
2. asked by rmz
3. 1,001 views
If you have a chemical reaction in equilibrium and add more of the product...what happens to the product's concentration, if it
1. 1 answer
2. asked by Connie
3. 999 views
how does John Locke's ideas reflect the feelings of the enlightenment
1. 1 answer
2. asked by Wayne
3. 989 views
Suppose the coefficient of static friction between the road and the tires on a car is 0.60 and the car has no negative lift.
1. 2 answers
2. asked by Andrew
3. 952 views
if you are riding a horse do you live or work in the peidmont region,why or why not?
1. 1 answer
2. asked by chanquilla
3. 948 views
What is the mass of 0.425 moles of CaCl2? The molar mass of CaCl2 is 110.98 g/mol.
1. 1 answer
2. asked by Jessica
3. 947 views
An angle less than 90 degree is called
1. 2 answers
2. asked by PAVLEEN
3. 942 views
Small, slowly moving spherical particles experience a drag force given by Stokes’ law: where r is the radius of the particle,
1. 1 answer
2. asked by mike
3. 942 views
if john has 56789 pens and steve has 23 times that amount how many does steve have?
1. 1 answer
2. asked by chanquilla
3. 941 views
I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a positive integer. What does it mean describe the graph of
1. 3 answers
2. asked by Paul
3. 929 views
Hello. Can someone help me with scanning a poem?1. A. Scan the following lines from Mary, Lady Chudleigh's poem "To the Ladies".
1. 0 answers
2. asked by Tamir
3. 928 views
A skydiver, who weighs 650 N, is falling at a constant speed with his parachute open. Consider the apparatus that connects the
1. 3 answers
2. asked by jared
3. 892 views
A pilot with a mass of 50 kg comes out of a vertical dive in a circular arc such that at the bottom of the arc her upward
1. 2 answers
2. asked by mike
3. 888 views
A horizontal clothesline is tied between 2 poles, 20 meters apart.When a mass of 5 kilograms is tied to the middle of the
1. 3 answers
2. asked by Lalo
3. 872 views
In the 1950s, an experimental train that had a mass of 2.65 104 kg was powered across a level track by a jet engine that
1. 2 answers
2. asked by Dar
3. 866 views
lAURA OWNS A PIE COMPANY. SHE HAS LEARNED THAT HER PROFITS, P(X), FROM THE SALE OF X CASES OF PIES ARE GIVEN BY P(X)= 150X -
1. 0 answers
2. asked by GERINA
3. 863 views
A block of mass 4.0 kg is put on top of a block of mass M = 6.0 kg. To cause the top block to slip on the bottom one, while the
1. 0 answers
2. asked by tripp
3. 837 views
what is a diphong?
1. 3 answers
2. asked by penelope
3. 833 views
· Consider the following statements: (a) Asian Americans and Pacific Islanders are a model minority, and (b) Asian Americans
1. 2 answers
2. asked by bob
3. 831 views
how much work is done by a crane that lowers 1000N of material 150m?
1. 2 answers
2. asked by liz
3. 812 views
Search the Internet to locate and review your state’s educational standards for a grade level and subject that interests you,
1. 1 answer
2. asked by scooby
3. 811 views
Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular
1. 5 answers
2. asked by Jeffery
3. 806 views
Evaluate the indefinite integral.(e^7x)/(e^14x+16)dx
1. 1 answer
2. asked by <3
3. 788 views
Can anyone help me or help me get started please?ASSIGNMENTS 1. CheckPoint: Full-Sentence Outline • Resources: Organizing Your
1. 8 answers
2. asked by Anonymous
3. 787 views
Compute the moment of inertia of your body as you stand tall and turn around a vertical axis passing through the top of your
1. 1 answer
2. asked by ucieng
3. 769 views
'A mason can build a wall in one-half the time it takes an apprentice. Together they build the wall in 12 hours. How long would
1. 1 answer
2. asked by Brenda
3. 761 views
A fisherman's scale stretches 4.2 cm when a 3.0 kg fish hangs from it.What will be the amplitude and frequency of vibration if
1. 1 answer
2. asked by Justin
3. 744 views
A sample of a volatile liquid is vaporized completely in a 240 ml falsh at 99 c and 757 torr. The vapor is then allowed to
1. 1 answer
2. asked by Courtney Venable
3. 742 views
Store A usually sells a jacket for $72 but today I can buy it for $40. Store B usually sells the same jacket for $38 but today I
1. 1 answer
2. asked by pavleen
3. 740 views
#50. What were the factors that played a significant role in the collapse of Russian control over Eastern Europe?my answer:
1. 4 answers
2. asked by y912f
3. 737 views
Suppose you were given three unlabelled solutions. You know that one contains Iron (II) ions, another contains Iron (III) ions
1. 2 answers
2. asked by Andrzelika
3. 732 views
To what speed must an electron be accelerated for it to have a wavelenght of 3.0cm?
1. 2 answers
2. asked by john
3. 731 views
Suppose that f(x) is a function with f(120)=40 and f'(120)=4. Estimate f(118.5).
1. 1 answer
2. asked by kayla
3. 723 views
Small, slowly moving spherical particles experience a drag force given by Stokes’ law: where r is the radius of the particle,
1. 1 answer
2. asked by katie
3. 709 views
1. From a bag containing 5 gold and 3 red marbles that feel identical, one is drawn at random. If the first marble drawn is not
1. 1 answer
2. asked by Kesha
3. 690 views
A 12-kg turtle rests on the bed of a zookeeper’s truck, which is traveling down a country road at 55 mi/h. The zookeeper spots
1. 1 answer
2. asked by mary
3. 678 views
Hey I am doing a Process Analysis assignment. I chose "How a magician saws a woman in half"I need some help in finding
1. 1 answer
2. asked by Ren
3. 669 views
The Egg Problem. A certain zoo kept records of therelationship between the weight of a mother ostrich and the weight of her egg.
1. 5 answers
2. asked by rmz
3. 659 views
The liquid contains 66.6c, 11.2% H and 22.2% 0. What is its molecular formula? How do i figure that?
1. 1 answer
2. asked by Courtney Venable
3. 644 views
The initial pressure of BrCl(g) in a reaction vessel is 1.6 mbar. If the vessel is heated to 500 K, what is the equilibrium
1. 1 answer
2. asked by Angelica
3. 635 views
When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -10t^2 + v*t + k gives the height of
1. 2 answers
2. asked by Martha
3. 627 views
Please help me on these questions:3. The soil of much of the steppe region of Northern Eurasia is a. very fertile and
1. 3 answers
2. asked by y912f
3. 623 views
Consider a local business whose services you frequently use. What are the main components of this company's business model?I
1. 3 answers
2. asked by Tracie
3. 621 views
Osmotic Pressure.. If the height of the column is 6 cm what is the osmotic pressure of the sugar solution in g/cm2 Assume the
1. 2 answers
2. asked by donna
3. 620 views
The following information is for X Company for 2009:Direct materials purchased $ 36,484 Direct materials used 34,013 Direct
1. 1 answer
2. asked by w
3. 616 views
If you have a soln of HNO2 at equilibriumHNO2 (aq) + H20 (l) <-->H3O+ (aq) + NO2- (aq) and water is added, is there a shift in
1. 0 answers
2. asked by Tommy
3. 611 views
if triangle MNO is an acute triangle and MN=x-1, NO=x+1, and MO=8, then what are the possible solutions of x?
1. 2 answers
2. asked by yoyoyoyo
3. 606 views
A skating rink plays different songs during a two-hour skating party. The songs average 3 minutes each. There is a 15-minute
1. 1 answer
2. asked by Mia
3. 605 views
how do you solve a dilution problem, this is chemistry
1. 2 answers
2. asked by marisa
3. 591 views
how could the trusts purchase a senate seat?
1. 0 answers
2. asked by sdjksdjjkds
3. 589 views
A 155g sample of an unknown was heated from 25.0 to 40.00c absorbing 5696J of energy. what is the specific heat?
1. 2 answers
2. asked by Laverne
3. 586 views
A bike is hanging from a hook in a garage. Consider the following forces.(a) The force of the Earth pulling down on the bike.
1. 2 answers
2. asked by jared
3. 586 views

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