Friday

February 12, 2016
Total # Posts: 661

**Chemistry 101 **

If a piece of granite weighing 250.0 grams is heated in boiling water to a temperature of 100 C and then placed in a calorimeter containing 400.00 grams of water, the temperature of the water increases from 20.0 C to 28.5 C. what is the specific heat of Granite?
*February 10, 2016*

**Chemistry 101 **

The mileage for a motorcycle with a fuel tank capacity of 22 liters is 35 miles per gallon. The density of gasoline is 0.74 g/cm^3.(dimensional analysis problem) a). How long a trip, in KM can be made on a full tank of gasoline? b). if the price of gasoline is $1.99 per gallon...
*February 9, 2016*

**Chemistry 101 **

Joe Smith, the chemical engineer from Acme Chemical Company, wanted to determine the final volume in a large glass cylinder is he dropped a 12.52 pound ingot of lead whose density was 11.3 g/cm^3 into the cylinder which already contained 2500. mL of water. What is the final ...
*February 9, 2016*

**Chemistry 101**

isn't the density given in g/cm^2 though? and the mass is mL. It seems like there are 2 different units here. They also want the answer in grams. so m= d x v 7.50mL x 7.85 g/cm^2= 58.9 (what unit mL or g.cm^2?)
*February 9, 2016*

**Chemistry 101 **

A student using a 100mL graduated cylinder that contained 50.00mL of water. Th volume of the water increased to 57.50mL. The density of the object was 7.85 g/cm^2. How many grams did the metal object weigh?
*February 9, 2016*

**Chemistry 101**

This would be the correct answer I was looking for. Mass 2.00 Grams Volume sphere = (4/3)*pi*r^3 Find radius first 1.00/2= 0.500in/2.54cm/1in ( the inches cancels out your left with 1.27 cm as the radius. Volume of a sphere (4/3)(3.14)(1.27)^3=8.58 Density = 2.00g/8.58cm^3= 0....
*February 9, 2016*

**Chemistry 101 **

A spherical bass has a diameter of 1.00 inch and a mass of 2.00 grams. Will the ball float or sink water? Remember that if the ball's density if greater than 1.00 g/mL the density of water, the ball will sink. Also remember to use dimensional analysis.
*February 9, 2016*

**Government (Reed)**

I dont understand social contract?
*February 2, 2016*

**Government ` Reed**

You talk in person with other people??? Reed?
*February 2, 2016*

**Government**

John Locke: In his book Two Treatises on Government, Locke refuted the divine right of Monarchy, and established a theory which states that all men are men are born free and equal. Each person should have equal access to the natural rights of life, liberty, and property. No ...
*February 2, 2016*

**social studies (again)**

They absolutely have meaning.
*February 2, 2016*

**poetry**

from details about blossoms in both the first and third haiku what conclusion can you draw? the poet feels exceedingly lonely the poet lives in an urban setting the poet enjoys the gentle beauty of nature the poet enjoys the drama of nature at its most intense Please help i ...
*January 29, 2016*

**Chemistry 101 **

A spherical bass has a diameter of 1.00 inch and a mass of 2.00 grams. Will the ball float or sink water? Remember that if the ball's density if greater than 1.00 g/mL the density of water, the ball will sink. Also remember to use dimensional analysis.
*January 28, 2016*

**Chemistry 101 **

A piece of metal weighing 10.65 grams releases 3450 joules of heat energy when it is cooled from 99.9c to 28.5c. Wheat is the specific heat capacity of the metal in J/g c..
*January 28, 2016*

**Chemistry 101 **

A rectangular prism has these dimensions and mass: length = 12.6 cm,, width = 1.256 feet, and thickness = 456 mm. Its mass is 1.2347 pounds. Determine its density in g/cm^3.
*January 28, 2016*

**Calculus**

I don't know how to go about this question. The number of elephants in a park is estimated to be p(t)=7500/(1+749e^-0.15t) Where t is the time in years and t=0 corresponds to the year 1930. Find the inverse p(t) and the interpretation of that.
*January 28, 2016*

**Calculus**

I don't know how to go about this question. The number of elephants in a park is estimated to be p(t)=7500/(1+749e^-0.15t) Where t is the time in years and t=0 corresponds to the year 1930. Find the inverse p(t) and the interpretation of that.
*January 28, 2016*

**Chemistry 101 **

A chemist needs 2.00 grams of a liquid compound with a density of 0.785 g/cm^3 density. what volume of compund is required?
*January 27, 2016*

**Chemistry 101 **

if an organic liquid has a density of 1.11 g/mL and has a measured volume of 500. mL, what mass of liquid is present?
*January 27, 2016*

**Chemistry 101 **

A chemist needs 2.00 grams of a liquid compound with a density of 0.785 g/cm^3 density. what volume of compund is required? Mass= Volume X Density 2.00g x 0.785 g/Cm^3 = 1.57g/cm^3 Not sure is this is correct......
*January 27, 2016*

**Chemistry 101 **

A sample containing 0.0750 pounds of metal pellets is poured into a graduated cylinder initially containing 22.4 mL of water. The water level rises to 31.3 mL. calculated the density of the metal.
*January 25, 2016*

**Chemistry 101 **

Convert 115 miles to feet, inches, centimeters, millimeter, and kilometers. Show set-ups.
*January 25, 2016*

**Chemistry 101 **

A rectangular prism measuring 12.5 in by 1.134 ft by 11.7 cm has a density of 7.89 g/cm^3. How much does the object weight in grams, kilograms, and pounds?
*January 25, 2016*

**Chemistry 101**

so: v= 4/3*3.14*0.5^3= 0.52 then take 2.00g/ 0.52 = 3.85g (ball will sink)
*January 25, 2016*

**Chemistry 101 **

A spherical ball has a diameter of 1.00 inch and a mass of 2.00grams. Will the ball float or sink in water? Remember that if the balls's density is greater than 1.00 g?mL (the density of water), the ball will sink.
*January 25, 2016*

**Chemistry 101**

Thanks!
*January 25, 2016*

**Chemistry 101**

So would it be 7.85 g/cm^3 x 7.50mL do you have to convert the mL and the g/ Cm^3? What unit would the mass be? grams or mL...
*January 25, 2016*

**Chemistry 101 **

A student using a 100mL graduated cylinder that contained 50.00mL of water. Th volume of the water increased to 57.50mL. The density of the object was 7.85 g/cm^2. How many grams did the metal object weigh?
*January 25, 2016*

**Chemistry 101 **

The distance from the Earth to the sun is approximately 9.37 x 10^7 miles. How long does it take for light from the sun, to reach the earth? Speed of light is 3.00 x 10^8 m/s. Use dimensional analysis to solve.
*January 21, 2016*

**Chemistry 101 **

A crown is determine to weigh 2.65 kg. When this crown is submerged in a full basin of water, the overflow is found to be 145 mL. Is the crown pure gold or a gold-silver alloy? The density of silver is 10.5 g/mL and gold that of gold is 19.3 g/mL. Show work.
*January 20, 2016*

**Chemistry 101 **

Solumedrol 1.5 mg per KG of body weight is ordered for a child weighing 2.0 pounds. Solumedrol is available as 75 mg / mL solution. How many mL should the nurse administer? Use dimensional analysis..
*January 19, 2016*

**Chemistry 101 **

Calculate the mass of a cylindrical cork of diameter 1.00 inches and length 2.50 inches. Pay attention to significant figures, Cork density 0.26 g/ mL
*January 19, 2016*

**Chemistry 101 **

What is the mass of water (in grams and pounds). contained in a 100. foot long pipe that has an internal diameter of 6.5 centimeters? The density of water is 1.00 g/ cm^3. The volume of a cylinder is (pi)r^2L.
*January 19, 2016*

**Chemistry 101 **

The distance from the Earth to the sun is approximately 9.37 x 10^7 miles. How long does ti take for light from the sun to reach the earth? Speed of light is 3.00 x 10^8 m/s. Show work.
*January 19, 2016*

**Chemistry 101 **

Joe Smith, the chemical engineer from Acme Chemical Company, wanted to determine the final volume in a large glass cylinder is he dropped a 12.52 pound ingot of lead whose density was 11.3 g/cm^3 into the cylinder which already contained 2500. mL of water. What is the final ...
*January 18, 2016*

**Chemistry 101 **

Joe Smith, the chemical engineer from Acme Chemical Company, wanted to determine the final volume in a large glass cylinder is he dropped a 12.52 pound ingot of lead whose density was 112.3 g/cm^3 into the cylinder which already contained 2500. mL of water. What is the final ...
*January 18, 2016*

**Chemistry 101**

Where did you get the 2 to divide by? and what about the 30.48? Not sure of how to set this problem up. 6.5/2= 3.25 and I do not see that in the problem?
*January 18, 2016*

**Chemistry 101 **

What is the mass of water (in grams and pounds). contained in a 100. foot long pipe that has an internal diameter of 6.5 centimeters? The density of water is 1.00 g/ cm^3. The volume of a cylinder is (pi)r^2L.
*January 18, 2016*

**Chemistry 101**

your wrong.
*January 18, 2016*

**Chemistry 101 **

A carpenter is building a deck and needs 750 board meters of ACC chemically treated lumber. The individual boards com in 8 foot and 12 foot lengths. How many boards will he need to complete the deck? If the boards retail at Home Depot for $1.25 per board foot, how much will he...
*January 18, 2016*

**Chemistry 101 **

A crown is determine to weigh 2.65 kg. When this crown is submerged in a full basin of water, the overflow is found to be 145 mL. Is the crown pure gold or a gold-silver alloy? The density of silver is 10.5 g/mL and gold that of gold is 19.3 g/mL
*January 18, 2016*

**Physics**

isn't it how long to fall 160 meters? (1/2) g t^2 = 160 not how long to fall 160 meters? (1/2) g t^2 = 60
*January 17, 2016*

**Physics **

The pilot of an airplane traveling 160 km/h wants to drop supplies to flood victims isolated on a patch of land 160m below. The supplies should be dropped how many seconds before the plane is directly overhead?
*January 17, 2016*

**math**

What is the range 36 75 63 49 83 46 54 79?
*January 12, 2016*

**4th grade math**

I am so stuck on this problem. Andrea made 10 cups of soup. she pours 3/4 cup in 5 bowls. how much soup is left
*January 11, 2016*

**math**

m - 7 <6 m < -1 *** m > 1 m < 13 m < -13 please check my answer!!!!!!
*January 4, 2016*

**Science**

i say A also
*January 4, 2016*

**Math**

Find the domain and all the intercepts for this equation. y=-2x^4+3x^2
*December 15, 2015*

**math! URGENT!!!!!**

it = 155.... now what?
*December 3, 2015*

**math! URGENT!!!!!**

can someone please help me and show me how to work out percent change from $1.55 to $2.60
*December 3, 2015*

**Physics**

Any form of guidance or help will be greatly appreciated. Thank you!
*November 26, 2015*

**Physics**

Joan comes across a deep ravine. She was planning on this as she packed a 3.8 m portable telescoping extension ladder. It has a mass of 15 kg. She was told that in order to get to the skull’s last known location, she must get across this 2 m gap. --- | \3.8m | \ __|_2m\...
*November 26, 2015*

**Federal Income Tax or Tax Law**

If Pauline transfers an asset to Frank and the asset is subject to a liability that is assumed by Frank, how does Frank's assumption of the liability affect the amount realized by Pauline on the transfer? How does Frank's assumption of the liability affect his basis in...
*November 22, 2015*

**Math**

How do you divide 1248 by 8?
*November 21, 2015*

**math**

If 1 centimeter on a map represents 300 kilometers then 2.5 cm represents___km.
*November 16, 2015*

**language arts...please check my answers**

is it became???
*October 27, 2015*

**language arts...please check my answers**

choose the linking verb to complete the sentence Gemma _____ the first female winner of the annual poetry contest? congratulated photographed became knew
*October 27, 2015*

**Is this right Ms Sue ???**

through their study on earth, geographers learn how earth and its people affect ? human health the solar system each other political systems***
*October 26, 2015*

**Kennedy**

616 is the correct answer you multiply 28 x 22, how much the milk cost is information that is not important
*October 26, 2015*

**please check my answer!!!**

through their study on earth, geographers learn how earth and its people affect ? human health the solar system *** each other political systems
*October 26, 2015*

**geography..please check my answers!!!**

which pair of basic questions guides geographers in their work? where are things located? and Why are they there? **** What is the climate? and Why was it changed? When did Earth form? and What is it made of? Who lived where? and When did they move?
*October 26, 2015*

**please check my answers!!!**

thank you so much, I think that is the only question I wanted to make sure of the answer but thanks for the offer
*October 26, 2015*

**please check my answers!!!**

All of the following advances in technology contributed to the Age of Exploration EXCEPT the mariner's compass. circumnavigation. the astrolabe. the caravel. ***
*October 26, 2015*

**Ms Sue please check my answers !!!!**

the caravel? @anon
*October 26, 2015*

**Ms Sue please check my answers !!!!**

All of the following advances in technology contributed to the Age of Exploration EXCEPT the mariner's compass. circumnavigation. the astrolabe. **** the caravel.
*October 26, 2015*

**Is this right Ms Sue ???**

Using NOT when searching allows you to ______? search for subtraction math games eliminate unwanted topics to narrow down for search *** search for more than one topic narrow down your topic by combining words
*October 25, 2015*

**please check my answers Ms Sue!!!**

Using NOT when searching allows you to ______? search for subtraction math games eliminate unwanted topics to narrow down for search search for more than one topic narrow down your topic by combining words**
*October 25, 2015*

**please help Ms Sue !!!!**

i think its d.....am i right?
*October 25, 2015*

**please help Ms Sue !!!!**

Using NOT when searching allows you to ______? search for subtraction math games eliminate unwanted topics to narrow down for search search for more than one topic narrow down your topic by combining words
*October 25, 2015*

**algebra**

Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis
*October 22, 2015*

**Human Growth**

I would agree.
*October 22, 2015*

**Math**

She might have been doing the 21 joke like mr. Paul said go to YouTube and look up what's 9+10
*October 14, 2015*

**maths **

every 2cm2 of cardbord has a mass of 1g.what is the mass of the cardbord to make the box.th e box is 16cm long 22 cm high and 4 wide
*October 14, 2015*

**Maths**

11/40
*October 8, 2015*

**Math**

Q. The coach of a baseball team separates the players into groups for the drills. Each group has the same number of players. Is the total number of players prime or composite, explain. - A. They really don't say the number in the book, but i would have to say composite, ...
*October 6, 2015*

**Math**

I think it is 1000
*October 5, 2015*

**science**

Darren says that he weighs 50 kg. Can you measure weight in kg?
*August 16, 2015*

**chemistry **

What is the pH of a buffer solution if you have 250 ml of a 1.56M Acetic Acid and you added 26.56 grams of sodium acetate (NaCH3CO2)? What is the new pH if you now add 1gram of NaOH to the buffer solution?
*August 5, 2015*

**marh**

three note pads and one pencil cost 70 cents. One note pad and three pencils cost 50 cents. How much do two pencils and two note pads cost?
*June 9, 2015*

**Computer Lit**

Your positions stated are very good.
*June 4, 2015*

**math**

Two paper strips each 5 cm wide are laid across each other at an angle of 30 degrees. Determine the area of the overlapping area. I have no idea where to start with this question or how to go on. I know it has to do with cosine or sine law. But what do I do
*June 3, 2015*

**math**

An airplane is flying from Montreal to Vancouver. The wind is blowing from the west at 60km/hour. The airplane flies at an airspeed of 750km/h and must stay on a heading of 65 degrees west of north. A) what heading should the pilot take to compensate for the wind? B) what is ...
*June 3, 2015*

**Math**

Thank you
*May 28, 2015*

**Math**

I meant 1.
*May 28, 2015*

**Math**

Okay so box 2 ? 2.5 + 5 + 2 = 25 4 + 3 + 2 = 24 :D
*May 28, 2015*

**Math**

Okay but what does it mean to be more cost effective? Thanks Ms.Sue
*May 28, 2015*

**Math **

If each box costs the same amount to ship, which would be more cost effective? Hint: Which has a greater volume? They are rectanglur prisims Box 1: 4ft 3ft 2ft Box 2: 2.5 ft 5ft 2ft
*May 28, 2015*

**Math**

thank you (: If the graph stops at 50 and thats month march do you know when all there will be no more fish left? Will it be april?
*May 28, 2015*

**Math **

Hi I'm trying to do my graph and the numbers go from 50 100 150 200 250 300 there is a point missing between 200 and 250. How do I find the number between 200 and 250?
*May 28, 2015*

**math**

An insurance company wishes to examine the relationship between income (in $,000) and the amount of life insurance (in $,000) held by families. The company drew a simple random sample of families and obtained the following results: Family - Income - Amount of Life Insurance A...
*May 14, 2015*

**math**

A farmer has $5200 to spend on fencing to make a pen along a river. A local company tells the farmer that they can build the pen for $6.50/m. The manager suggests a pen in the shape of a right triangle with the hypotenuse along the river. What are the dimensions.
*May 4, 2015*

**science**

How does the structure of epithelial tissue protect from dehydration
*May 1, 2015*

**Science**

Thanks, Francis! At least someone other than teachers and lunch table friends support me!
*April 15, 2015*

**Science**

You mix oil and vinegar for a salad dressing. After a few minutes, the oil has seperated and is floating. Infer which has the greater density - oil or vinegar. Explain. I put "Vinegar has more density since it's on the bottom, where the oil has less since it seperated...
*April 15, 2015*

**Math**

Mostly, there are about 20 students in a WHOLE class. If there were about 1/3 of them wearing shorts and 6 were wearing them, wouldn't you just do 6 x the denominator of 3? That would get you 18, which is fairly close to 20. If this helped, your welcome Francis. If it didn...
*April 15, 2015*

**math**

A large game die is a cube measuring 1.2” in length. The die is a solid made from liquid plastic. If a game comes with 6 such dice, how many cubic inches of liquid plastic were needed to make the 6 dice?
*April 15, 2015*

**Math Check**

Hi! I need help with this one problem. My teacher told me that I could use any method to solve the following system and this is the answer I got; (1/2,2/5). Is this correct? 0.15r + 0.85s = 0.23 0.20r + 1.25s = 0.33 Write answer in (r, s).
*April 9, 2015*

**Math**

What is the price of a tennis ball if a package of three costs $12.75?
*March 24, 2015*

**Math Geometry - Please check my answers!**

mistake with c, it suppose to be: c) 10<=x<=13
*March 15, 2015*

**Math Geometry - Please check my answers!**

For the domain there are multiple answers. a) 10<=X<=16 b) 0<=x<=13 c) 10<=x<=15 d) all real #s I chose d
*March 15, 2015*