Archives
2010
February

Questions Asked on February 16, 2010

Question: The amount of internal energy needed to raise the temperature of .25 kg of water by 0.2 degrees Celsius is 209.3 J.
1. 14 answers
2. asked by mike
3. 9,558 views
when aqueous solutions of sodium carbonate and manganese(V) chloride are mixed, a precipitate forms. The precipitate is a
1. 4 answers
2. asked by Lola
3. 6,838 views
A student presses a book between his hands, as the drawing indicates. The forces that he exerts on the front and back covers of
1. 3 answers
2. asked by kelly
3. 4,888 views
A centrifugal pump compresses 3000 liters/min of water from 98 KPa to 300KPa. the inlet and outlet temp are 25°C. The inlet and
1. 2 answers
2. asked by Janus
3. 4,628 views
i need help. How would you fix these sentences?3. With machetes, the explores cut their way through the tall grasses to the edge
1. 16 answers
2. asked by tash
3. 3,690 views
The Moon has a mass of 7.36 1022 kg and a radius of 1.74 106 m.(a) What is the acceleration due to gravity on the Moon b) How
1. 3 answers
2. asked by Anonymous
3. 3,315 views
I need help with my Java homework!Write a program that calculates a customer's monthly bill. It should ask the user to enter the
1. 4 answers
2. asked by Matt
3. 3,165 views
Hi, I'm just confused as to what steps to take in order to solve these problems.If you could please show your steps and method
1. 1 answer
2. asked by iintense
3. 3,070 views
A swimmer runs horizontally off a diving board with a speed of 3.14 m/s and hits the water a horizontal distance of 2.16 m from
1. 1 answer
2. asked by Abby
3. 3,006 views
The equilibrium 2 SO2(g) + O2(g) 2 SO3(g) has the value K = 2.5 1010 at 500. K. Find the value of K for each of the following
1. 4 answers
2. asked by Tommy
3. 2,414 views
Why do gas giants have more moons than the terrestrial planets?The gas giants have more moons than the terrestrial planets
1. 3 answers
2. asked by Sara
3. 2,245 views
A student asks whether a polygon whose sides are congruentis necessarily a regular polygon and whether a polygon with all angles
1. 1 answer
2. asked by alicia
3. 2,139 views
A force of 70.0 N is exerted at an angle of 30.0° below the horizontal on a block of mass 8.00 kg that is resting on a table.
1. 2 answers
2. asked by Dan Sanchez
3. 2,109 views
is this a fragment; The panther lay motionless behind the rock. Waiting silently for its prey
1. 2 answers
2. asked by tash
3. 1,972 views
A race car traveling at +44m/s is accelerated to a velocity of +22 m/s over an 11 s interval. What is the displacement during
1. 3 answers
2. asked by Suzie
3. 1,961 views
1. Find the angle of smallest positive measure coterminal with an angle of the given measure:a. 520 b. - 75 2. Points A (1,0)
1. 2 answers
2. asked by Priscilla
3. 1,893 views
I have to create a mnemonic to help me remember the difference between meteors and meteorites. I know what they both are, but I
1. 6 answers
2. asked by Sara
3. 1,710 views
When 0.10 g of insulin is dissolved in 0.200 L of water, the osmotic pressure is 2.30 Torr at 20°C. What is the molar mass of
1. 2 answers
2. asked by Mark
3. 1,684 views
Calculate the thermal energy dissipated from brakes in a 1310-kg car that descends a 13.5° hill. The car begins braking when
1. 2 answers
2. asked by Anonymous
3. 1,572 views
Why did Theodore Roosevelt mediate the russo-japanese war?
1. 2 answers
2. asked by Colby
3. 1,509 views
28. A community located downwind from a power plant that burns high-sulfur coalsa. may experience the effects of acid rain b. is
1. 1 answer
2. asked by mysterychicken
3. 1,499 views
A pilot stops a plane in 484 m using an acceleration of -8 m/s2. How fast was the plane moving before the breaking began?
1. 2 answers
2. asked by Jake
3. 1,331 views
What happens as a comet approaches and moves away from the sun?As a comet approaches towards the sun it becomes warm. Then as it
1. 4 answers
2. asked by Sara
3. 1,318 views
The initial velocity of a 4.0-kg box is 11 m/s, due west. After the box slides 4.0 m horizontally, its speed is 1.5 m/s.
1. 1 answer
2. asked by Anonymous
3. 1,274 views
expand and simplify (2x+5)(3x-4)
1. 2 answers
2. asked by keisha
3. 1,258 views
Under which condition can you hold your breath longer?First breathe in as much as you can and hold your breath, and time it.
1. 2 answers
2. asked by so CONFUSED!
3. 1,257 views
Looking up the specifications of an oil online, the spec sheet indicates that the specific gravity of this oil is .93.Does this
1. 1 answer
2. asked by Chris
3. 1,251 views
One mole of an ideal monatomic gas initially at 300 K is expanded from an initial pressure of10 atm to a final pressure of 1
1. 1 answer
2. asked by mary
3. 1,234 views
PLEASE HELP WITH AS MANY AS POSSIBLE... I AM TERRIBLY CONFUSED.1. A charge moves a distance of 1.7 cm in the direction of a
1. 2 answers
2. asked by Jonathan
3. 1,202 views
Henry claims that a line segment has a finite number of points because it has two endpoints. How do you respond?
1. 1 answer
2. asked by alicia
3. 1,179 views
as dr. andrea mogan listens to allison sanchez describe her ailments, she jots down her insights and treatment ideas. a health
1. 1 answer
2. asked by shay
3. 1,166 views
The length of a rectangle is fixed at 18 cm. What widths will make the perimeter greater than 78 cm.?*widths must be greater
1. 8 answers
2. asked by Tanya
3. 1,111 views
A car accelerates uniformly from rest to a speed of 64.5 km/h (17.9 m/s) in 10 s. Find the distance the car travels during this
1. 2 answers
2. asked by lindsey
3. 1,098 views
the value, v, of a shopkeeper's inventory software program is given by v = 1/2t + 6, where t is the number of years since the
1. 1 answer
2. asked by Kate
3. 1,088 views
what wud have been another really good Canadian song sung at the Olympics?Is this one good: Sarah Mclachlan: I will remember you
1. 8 answers
2. asked by Sara
3. 1,079 views
How were European nations able to dominate non-European areas?
1. 1 answer
2. asked by Nancy
3. 1,068 views
Determine the functional dependencies that exist in the following table; then convert this table to an equivalent collection of
1. 0 answers
2. asked by Matt
3. 1,059 views
Maggie claims that to make the measure of an anglegreater, you just extend the rays. How do you respond?
1. 1 answer
2. asked by alicia
3. 1,033 views
Can you explain why the quotation mark was in putted on this sentence: "Notice,"the professor told the class, "Cassius' choice
1. 1 answer
2. asked by terri
3. 1,024 views
You are asked to prepare 150.0 mL of 3.15×10−2 M AgNO3.2.) An aqueous solution is 6.40% methanol CH3OH by mass, with d =
1. 1 answer
2. asked by Andrew
3. 1,019 views
Benzene has a vapor pressure of 100.0 Torr at 26°C. A nonvolatile, nonelectrolyte compound was added to 0.309 mol benzene at
1. 3 answers
2. asked by Angelica
3. 994 views
2.) How much heat must be absorbed at 1357 K to melt a bar of copper (80 * 10 * 12 cm) assume d = 8.93 g/cm^3.The normal boiling
1. 2 answers
2. asked by Andrew
3. 973 views
How is a meteor and astroid similar?Meteors and asteroids are both rocks from space that sometimes hit the earth. They may be
1. 5 answers
2. asked by Sara
3. 965 views
How do you draw 224 degree angle???
1. 4 answers
2. asked by Elizabeth
3. 948 views
Why are models useful?a) models work exactly like the things they present b) Models are the first stage in any experiment c)
1. 2 answers
2. asked by JADEN
3. 944 views
How much heat, in kilojoules, is evolved when a 3.70 kg sample of molten Cu freezes?The normal boiling point is 1357 K, and heat
1. 1 answer
2. asked by Andrew
3. 939 views
1.)How many grams would you need of a sample known to be 99.81% AgN03 by mass?You are asked to prepare 150.0 mL of 3.15×10−2
1. 2 answers
2. asked by Andrew
3. 933 views
Im having troubke coming up with a thesis.I need to compare setting in two different stories.
1. 4 answers
2. asked by Leslie
3. 932 views
how were the economic conditions in France and the American colonies before their revolutions similar
1. 2 answers
2. asked by Jennavecia
3. 924 views
I'm not sure how to answer this question....Assume that magnesium would act atom-for-atom exactly the same as copper in this
1. 1 answer
2. asked by Kelsey
3. 923 views
I need a good thesis statement for a research paper about agriculture as a career.
1. 2 answers
2. asked by Seth
3. 919 views
A gas diffuses only 0.5 times as fast as an oxygen molecule at the same temperature. What is the molecular weight of the gas?
1. 6 answers
2. asked by Bob
3. 919 views
Paragraph 1Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an
1. 3 answers
2. asked by Sassy
3. 917 views
Initially, both metal spheres are neutral.In a charging process, 1 × 1013 electrons are removed from one metal sphere and
1. 4 answers
2. asked by Jonathan
3. 898 views
Your favorite cousin has moved to your town and is looking for a job. Her previous experiences areworking as a cashier and sales
1. 3 answers
2. asked by Me
3. 884 views
why did people ultimately settle in the louisiana purchase?
1. 2 answers
2. asked by Ryaro
3. 883 views
How many moles of oxygen are there in 23.5g of H2SO4? (numbers are subscripts)How many oxygen atoms? How many grams of oxygen?
1. 3 answers
2. asked by Ralph
3. 877 views
The perimeter of a rectangle is 74 centimeters. The width is doubled and the length is halved. The new rectangle has a perimeter
1. 1 answer
2. asked by Sammi
3. 875 views
What is the force between two charged spheres 1.25 cm apart if the charge on one sphere is 2.50 C and the charge on other sphere
1. 5 answers
2. asked by Rony
3. 866 views
A soccer ball is kicked with a speed of 9.80 m/s at an angle of 25.0 degrees above the horizontal. If the ball lands at the same
1. 3 answers
2. asked by Abby
3. 862 views
I need to write an essay comparing how North American racial ideologies and their effects on society with Latin
1. 1 answer
2. asked by Rose
3. 854 views
how were the economic conditions in France and the American colonies before their revolutions similar and how were they
1. 1 answer
2. asked by Britanya
3. 843 views
The density of copper is 8.95g/cm3 and the density of zinc is 7.14 g/cm3, A sample of a Cu-Zn is 80.5 percent Cu and 19.5
1. 1 answer
2. asked by mala
3. 837 views
A car slows from 22 m/s to 3 m/s with an acceleration of -2.1m/s2. How long does this take?
1. 3 answers
2. asked by Mike
3. 823 views
A formal, systematic essay or book on some subject is called a
1. 3 answers
2. asked by nick
3. 813 views
In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 3.9 m/s at an
1. 1 answer
2. asked by Abby
3. 809 views
Initially, both metal spheres are neutral.In a charging process, 1 × 1013 electrons are removed from one metal sphere and
1. 1 answer
2. asked by Tj
3. 804 views
Both comets and planets orbit the sun. How do their orbits differ?Comets orbit elliptically, and planets orbit more circularly.
1. 1 answer
2. asked by Sara
3. 791 views
24. Characteristics that biologists use to classify organisms area. convergent evolution, cladogram, reproductive isolation b.
1. 2 answers
2. asked by mysterychicken
3. 782 views
A 2.90 kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the
1. 2 answers
2. asked by anonymous
3. 768 views
for this equationFe(CN)6 4- + Fe 3+ --> Fe(CN)6 3- + Fe 2+ at 310 K and pH 2 using the equation E = Eo + 2.303 RT/nF log K -
1. 2 answers
2. asked by lucy
3. 763 views
The drawing shows a large cube (mass = 48 kg) being accelerated across a horizontal frictionless surface by a horizontal force .
1. 1 answer
2. asked by eric
3. 759 views
Johnny has two bank accounts. One pays 7% interest and the other pays 10% interest. A total of $25,000 invested in the two
1. 0 answers
2. asked by Wejie
3. 756 views
The Moon has a mass of 7.36 1022 kg and a radius of 1.74 106 m.(a) What is the acceleration due to gravity on the Moon? b) How
1. 0 answers
2. asked by Anonymous
3. 756 views
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 930 and 1640
1. 0 answers
2. asked by tiffany
3. 741 views
PLEASE EXPLAINA charge moves a distance of 1.7 cm in the direction of a uniform electric field having a magnitude of 200 N/C.
1. 1 answer
2. asked by Jonathan
3. 741 views
You see an object accelerate towards the left. Which of the following statements is correct?A. There is a net force on the
1. 2 answers
2. asked by Anonymous
3. 724 views
What will a spring scale read for the weight of a 73 kg woman in an elevator that moves upward with constant speed of 5.4 m/s?
1. 3 answers
2. asked by Sandy
3. 721 views
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 25 m/s
1. 1 answer
2. asked by Abby
3. 712 views
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 mph, train B is traveling at
1. 1 answer
2. asked by Tanya
3. 682 views
A square and an equilateral triangle has the same perimeter. Each side of the triangle is 5 m less than twice the length of each
1. 1 answer
2. asked by Jenica
3. 675 views
In a quadrilateral , angle CAB is divided into two comgruent angles by line AD. What is the measure, in degrees of angle DAB.
1. 4 answers
2. asked by Outcast
3. 674 views
What is the required resistance of an immersion heater that will increase the temperature of 2.00 kg of water from 10.0°C to
1. 2 answers
2. asked by Machelle Butts
3. 670 views
A cork shoots out of a champagne bottle at an angle of 39.0 degrees above the horizontal. If the cork travels a horizontal
1. 2 answers
2. asked by Abby
3. 665 views
all men had to do what during military expansion during the Meiji Restoration?
1. 2 answers
2. asked by Nancy
3. 648 views
which of the following can reduce biodiversity ?A) divided habiats B) habiat loss C) introduced species D) all of these
1. 0 answers
2. asked by Anonymous
3. 643 views
Which one of the following subcategories of the E/M section has separate codes for new and established patients?A. Office or
1. 0 answers
2. asked by Joe
3. 639 views
When silver crystallizes, it forms facecenteredcubic cells. The unit cell edge length is 409 pm. Calculate the density of
1. 1 answer
2. asked by WisKeyKey
3. 637 views
A bike is hanging from a hook in a garage. You need to consider the following forces.(a) The force of the Earth pulling down on
1. 1 answer
2. asked by Max
3. 635 views
In a month a stereo store sold %17,500 worth of VCRs which, was 28% of its total sales. Find the total sale for the month.
1. 1 answer
2. asked by Yasmin
3. 634 views
how were the economic conditions in France and the American colonies before their revolutions similar and different
1. 1 answer
2. asked by Jennavecia
3. 632 views
Minor Body | Asteroid|Meteor|Meteorite._______________________________________ Similarities
1. 3 answers
2. asked by Sara
3. 631 views
An object with charge qo = 1.5μC and mass 0.7 g starts from rest at the +6V equipotential line. Calculate its change in
1. 1 answer
2. asked by Amy
3. 629 views
A rebellion overthew the shotgun and as a result?How did Japanese feel about the impact of the treaty of Kanagawa and others
1. 4 answers
2. asked by Wendy
3. 627 views
What quantity of heat is required to vaporize 32.5 g of liquid water at 100°C?
1. 1 answer
2. asked by Emily
3. 622 views
can someone double check for me?This is the second part to the business letter I posted a few days ago. Process: Draft an
1. 0 answers
2. asked by Ruby
3. 619 views
Benzene has a vapor pressure of 100.0 Torr at 26°C. A nonvolatile, nonelectrolyte compound was added to 0.309 mol benzene at
1. 1 answer
2. asked by Angelica
3. 610 views
a potential difference of 0.90 V exists from one side to the other side of a cell membrane that is 5.0 nm thick. What is the
1. 1 answer
2. asked by Rony
3. 604 views
Determine which types of display could be used to illustrate the given data.4) The midterm test scores for the seventh-period
1. 1 answer
2. asked by tom
3. 596 views
Polly decides to use a wall of the house as one sideof the rectangular dog pen. She plans to use the 24 ft. of fencing (1 ft.
1. 7 answers
2. asked by Courtney
3. 591 views

Back to February 2010

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2025