Wednesday

November 25, 2015
Total # Posts: 340

**physics b**

In a waterfall, much of the energy of the falling water is converted into heat. If all the mechanical energy is converted into heat that stays in the water, how much of a rise in temperature occurs in a 100 m waterfall? For water, c = 4.186 × 103 J/(kg • C°)
*November 12, 2015*

**physics b**

You add 8950 J of heat to 174 g of iron. What is the temperature increase of the iron (c = 452 J/(kg • C°))?
*November 12, 2015*

**physics b **

A nail driven into a board increases in temperature. If 60% of the kinetic energy delivered by a 1.8 kg hammer with a speed of 7.8 m/s is transformed into heat that flows into the nail and does not flow out, what is the increase in temperature of an 8 g aluminum (c = 900 J/(kg...
*November 12, 2015*

**science project**

i don't know
*November 9, 2015*

**science project**

what is the control in the experiment gummy bears?
*November 9, 2015*

**Geo, Math lit, Life science, history**

Which career will I be able to do if I study Geography, Mathematical literacy, Life sciences, History, English, setswana and life orientation
*October 19, 2015*

**Physics**

In a downtown office building you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width of each section of the door if a force of 62 N applied to the outer edge of a section produces an angular acceleration of 0.460 rad/s2?
*October 19, 2015*

**Math**

What is the result if you multiply a number of cups by 8 fluid ounces over 1 cup and then multiply the result by 1 cup over 8 fluid ounces?Give an example.
*October 12, 2015*

**Physics**

A body moving with uniform acceleration has a velocity of 16.9 cm/s when its x coordinate is 3.1 cm. If its x coordinate 3.18 s later is -4.72 cm, what is the x-component of its acceleration?
*October 12, 2015*

**Physics Kinematics. **

A ball is kicked with an initial velocity of 21 m/s in the horizontal direction and 16 m/s in the vertical direction. (Assume the ball is kicked from the ground.) (a) At what speed does the ball hit the ground? (b) For how long does the ball remain in the air? (c) What maximum...
*September 28, 2015*

**Math**

17Min and 38mind explain the mental math
*August 27, 2015*

**math**

I= ___ w/m^2 (simplify your answer. Type an integer,fraction, or mixed number.)
*July 24, 2015*

**math**

The intensity of I of light from a light bulb, measured in watts per square meter (w/m^2), varies inversely as the square of the distance d from the light bulb. Suppose I is 85 w/m^2 when the distance is 5m. Find the intensity when the distance from the light bulb is 2m away.
*July 24, 2015*

**Probablity **

A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a black marble, replacing it, and then picking a black marble?
*June 19, 2015*

**Math**

Suppose you have a mean standardized score of 1500 points with a standard deviation of 150 points. This data is normally distributed. What is the z-score of 1600 points? 0.75 0.5 0.67 0.32
*May 31, 2015*

**Math**

The time required to finish a test in normally distributed with a mean of 40 minutes and a standard deviation of 8 minutes. What is the probability that a student chosen at random will finish the test between 24 and 48 minutes? 82% 2% 84% 16%
*May 31, 2015*

**Check my work please!**

I will post a new one if that is ok?
*April 24, 2015*

**Check my work please!**

what? how does that work? cant you just count and see which ones are which? if not I can open another question with the same questions just numbered
*April 24, 2015*

**Check my work please!**

that's the thing, I have been looking at the answers given to me and I used them. I don't think I included any questions from ones previously answered before and If I did I am sorry because I thought I didn't....hold on ill check...
*April 24, 2015*

**Check my work please!**

my answers: 1. b 2. a 3. d 4. b 5. b
*April 24, 2015*

**Check my work please!**

Someone please help :(
*April 24, 2015*

**Check my work please!**

Damon said he didn't know anything about it and he only answered one out of 6 and the question I asked him is not on here
*April 24, 2015*

**Check my work please!**

some of the questions are close together so make sure you look carefully; there are 5 questions
*April 24, 2015*

**Check my work please!**

How does subduction change the ocean floor? a) subduction cause magma to accumulate on the ocean floor b) subduction causes oceanic crust to break into pieces c) subduction causes the ocean floor to sink into deep-ocean trenches d) subduction causes metamorphic rocks to form ...
*April 24, 2015*

**PLEASE HELP ME!!!**

How does subduction change the ocean floor? a) subduction cause magma to accumulate on the ocean floor b) subduction causes oceanic crust to break into pieces c) subduction causes the ocean floor to sink into deep-ocean trenches d) subduction causes metamorphic rocks to form ...
*April 24, 2015*

**Science help**

Ms. Sue can you help?
*April 24, 2015*

**Science help**

umm.... so am I correct?
*April 24, 2015*

**Science help**

Which of the following illustrates conduction as a mode of heat transfer? a) A microwave oven produces electromagnetic waves that transfer to the food in the form of heat*** b) leaving a metal spoon in a bowl of hot soup will make the spoon hot as well c) Pasta rises and falls...
*April 24, 2015*

**Science**

is that correct?
*April 24, 2015*

**Science**

oh sorry, it was a
*April 24, 2015*

**Science**

Which evidence from the sea floor shows that tectonic plates move? a) the sea floor is youngest near a mid-ocean ridge and older farther away b) The sea floor is much older than the continents c) mid-ocean ridges form the longest range of mountains on earth d) The sea floor is...
*April 24, 2015*

**Please Help, I REALLY need it btw-science**

1. which of the following is not a method by which minerals form? a) crystallization b) decrystallization c) water evaporation from a solution d) cooling of magma or lava (more will be listed)
*April 24, 2015*

**Math**

What is the cost of laying carpet in a living room that measures 25ft by 15ft. If the cost of the carpet is $15 per square yard (plus tax) and labor is $5 per square yard?
*April 22, 2015*

**math**

Mary has 7 1/4 yards of fabric. she cuts off 3/4 foot of fabric to make the edge even. Mary wants to end up with 3 pieces of fabric that are the same size. how long will each piece be?
*March 13, 2015*

**stat**

Diana and franklin both play a card game called cribbage,in whichthe first person to earn 121 points is the winner. The table below shows the results of six games of cribbage. Dianna's score/Franklin's score Game 1 121/118 Game 2 121/101 Game 3 98/121 Game 4 121/103 ...
*January 21, 2015*

**Chemistry**

What is the density (in grams per liter) of a gas at STP if 1.97 L of the gas in a bulb at 23.8 °C, and 761.9 mm Hg weighs 0.371 g?
*December 10, 2014*

**chemistry**

how many grams of BaCl2 are present in 150 g of H20 if the concentration is 0.3 m?
*November 25, 2014*

**algebra worksheet help please**

Are these right? A. No - the decrease in is not a constant The intensity I of x meters of cable is I = 1500 * 0.964^x C yes ?
*November 17, 2014*

**algebra worksheet help please **

Fiber-optic cables are used widely for Internet wiring, data transmission, and surgeries. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1,500 lumens of light enter the cable, the intensity of light ...
*November 17, 2014*

**Algebra - rate of change help**

The price of products may increase due to inflation and decrease due to depreciation. David is studying the change in the price of two products, A and B, over time. The price f(x) in dollars, of product A after x years is represented by the function below. f(x)=0.69(1.03)^x 1....
*November 17, 2014*

**Algebra - quick question**

What is the average rate of change formula for exponential growth functions?
*November 17, 2014*

**Algebra - Can you PLEASE check - I**

Is # 6 like this F(1)= 10(1.02) = 10.2 F(2)= 10.2 x 1.02 = 10.40 F(3=10.404 x 1.02 = 10.61 then continue? So, the final answer is 11.04?
*November 17, 2014*

**Algebra - Can you PLEASE check - I**

OMG, I thought I knew this stuff better!! Now i'm really lost!!
*November 17, 2014*

**Take a look Ms Sue**

November 21, 2009, was the day of a tragic fire in the MGM Grand Hotel in Las Vegas. At the time of the fire, the hotel had only $30 million of liability insurance. One month after the fire, the hotel bought an extra $170 million of liability coverage for a premium of $37.5 ...
*November 13, 2014*

**finance**

November 21, 2009, was the day of a tragic fire in the MGM Grand Hotel in Las Vegas. At the time of the fire, the hotel had only $30 million of liability insurance. One month after the fire, the hotel bought an extra $170 million of liability coverage for a premium of $37.5 ...
*November 13, 2014*

**lit**

Is winning your topic. Can you be more specific.
*November 13, 2014*

**Math**

How to write five times the width in algebraic expression
*November 11, 2014*

**Math**

How to right five times the width in algebraic expression
*November 11, 2014*

**Science**

The answer is A
*October 17, 2014*

**Language Arts**

I'd say B
*October 14, 2014*

**Mathematics C 8th grade**

Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2.4 h, and Car B traveled the distance in 4 h. Car A traveled 22 mph faster than Car B. How fast did Car A travel? _______MPH
*October 3, 2014*

**Math**

I don't know
*October 2, 2014*

**p.e**

False
*September 30, 2014*

**science**

What will happen to the mass of the wood if you put them together without cutting them.
*September 29, 2014*

**Math**

What number is 1 million greater than 337,676?
*August 26, 2014*

**algebra**

during the lunvh rush the catch of the day is ordered 24 times if the number of catch if the day orders represents 2/9 of the total lunch orders x which equation could be used to determine the number of lunch orders taken that day
*June 25, 2014*

**Chemistry**

Becos of the diffence form of cpd dat react
*June 5, 2014*

**Chemistry**

Explain why this reaction is not feasible:CH3CHO^-Na^+ + CH3C(CH3)2Cl=CH3CH2O(CH3)2OCH3. ;->Becos of ion charge of Oxygen and Na in the cpd reacting with non ionic cpd
*June 5, 2014*

**Maths**

In a large lot of electric light bulbs,5% of the bulbs are defective.calculate the probability that a random sample of 20 will contain at most 2 defective bulbs? Try ;->Pr=nCx p^xq^n-x .pr(2D)=20C2(0.05)^2(0.95)^18;->=2.2/ANS
*June 5, 2014*

**Chemistry**

Give reasons why the reaction between benzoylchloride and methanol do not attack carbon from the ring
*June 5, 2014*

**geometry**

a line segment has end point P(3,6) and Q(12,18) and is dilated so thats its new endpoints are Q' (8,12). What is the scale factor? If the lenght of PQ is 15 what is the lenght of P' Q'? Can you plez help worth 10 points
*May 28, 2014*

**math **

what is -20=-4x-6x
*May 5, 2014*

**math**

Bubble wrap sells in sheets, and each sheet has 1 million individual spherical bubbles, each with a diameter of 0.01 m. What is the total volume of air contained in the bubbles of two sheets of bubble wrap? Round to the nearest tenth.
*March 16, 2014*

**chemistry**

Molality is a unit of concentration that measures the moles of solute per
*March 12, 2014*

**Language Arts-check answer-**

Thanks!
*February 20, 2014*

**Language Arts-check answer-**

Yay. :-)
*February 20, 2014*

**Language Arts-check answer-**

The article is at the bottom for this question: Skim the article “Cruise Control” to find the name of the bumper sticker service found in Arlington, Texas. a) 1-866-2TELLMOM b) 800-4-MYTEEN ******** c) Big Mother d) Dad’s Eyes Anne Rekerdres likes to call "...
*February 20, 2014*

**Language Arts ~CHECK MY ANSWERS~**

Yay :-) Thanks!
*February 20, 2014*

**Language Arts ~CHECK MY ANSWERS~**

for question: ? ? ? Skim the article “Cruise Control” to find the name of the bumper sticker service found in Arlington, Texas. 1-866-2TELLMOM 800-4-MYTEEN <----- Big Mother Dad’s Eyes
*February 20, 2014*

**Language Arts ~CHECK MY ANSWERS~**

oops the 2nd one. Skim the article “Cruise Control” to find the name of the bumper sticker service found in Arlington, Texas. 1-866-2TELLMOM 800-4-MYTEEN <----- Big Mother Dad’s Eyes
*February 20, 2014*

**Language Arts ~CHECK MY ANSWERS~**

Here is the article for the 1st one. Anne Rekerdres likes to call "the everlasting punishment". When the 17-year-old North Dallas senior came home with a speeding ticket in March, her dad, Randy, 47 slapped the back bumper of her beloved '92 red Ford Explorer ...
*February 20, 2014*

**Language Arts ~CHECK MY ANSWERS~**

No?
*February 20, 2014*

**Language Arts ~CHECK MY ANSWERS~**

So..., the correct answer is Discuss? Which verb correctly completes the below sentence? The collection written by several of my favorite authors _____ research in the rain forest. Discuss <----- Discusses
*February 20, 2014*

**Language Arts ~CHECK MY ANSWERS~**

Which verb correctly completes the below sentence? The collection written by several of my favorite authors _____ research in the rain forest. Discuss <----- Discusses Skim the article “Cruise Control” to find the name of the bumper sticker service found in ...
*February 20, 2014*

**Ms.Sue- I’m so sorry, but this time is real, Can you check! Please!?**

I’m sorry, but this time is real, Can you check! Please!? 2. Why were Native Americans forced to leave their lands during the 1830s? d.) their new lands were better for farming. 4. How did President Jackson respond to the Supreme Court’s ruling in Worcester v. ...
*February 20, 2014*

**Ms. Sue (Check My Answers)**

2. Why were Native Americans forced to leave their lands during the 1830s? a.) settlers wanted to settle the land<--- b.) U.S. citizens settled the land first c.) the Supreme Court ordered their removal d.) their new lands were better for farming. 4. How did President ...
*February 20, 2014*

**Social Studies--Check My Answers Please--**

1. What act did Congress pass in order to relocate Native Americans? a.) Naturalization Act b.) Alien Act c.) Relocation Act d.) Indian Removal Act <--- 2. Why were Native Americans forced to leave their lands during the 1830s? a.) settlers wanted to settle the land b.) U.S...
*February 20, 2014*

**math fractions and decimals**

the decimal has a digit greater than 4 but less than 8 in the hundreds place, what could the decimal be?
*February 17, 2014*

**science**

In the newspaper one day you read that the highest tides are expected in the next month what can you infer about the sun the moon and the earth what phase of the moon will it probaly be visibly?
*December 16, 2013*

**Chemistry**

Is carbon phosphate an ionic, polar covalent, or non polar covalent bond?
*December 5, 2013*

**Geometry**

What is y if 6y+1=21y+13
*November 23, 2013*

**science**

Also if your in conexus 6 is d and 7 is c
*October 25, 2013*

**science**

2 is b-50% 1 is b-not inherited and 4 is a-a mutation is a permanent change in the order of bases in the DNA
*October 25, 2013*

**Multiplication**

Marlon has 4 cards, jake has 4 cards, and Sam has 3 cards. Can u write a multiplication sentence to find how many cards they have in all? Explain
*September 10, 2013*

**Math**

144,.898
*August 29, 2013*

**math**

what is 30m=6000
*August 28, 2013*

**math**

if i bought a dress that cost 55.00 dollars and the sales tax was 8% exatcly how much will the dress cost?
*April 4, 2013*

**Science **

How many grams of CaCl2 are required to prepare 2.00 liters of 7.00 M CaCl2?
*April 2, 2013*

**Math**

OOPS, SORRY #9 IS C SORRY FOR THE MISTAKE.
*March 22, 2013*

**Math**

I REALLY NEED HELP PLEASE PLEASE HELP ME WITH THIS JUST CHECK IF THERE RIGHT IF NOT THEN GIVE ME THE RIGHT ANSWER PLEASE PLEASE !!!!! :( :( 1) The length of a room is 5 . 048 ×102 cm. Which number is equivalent to this length? A 0.005048 cm B 0.05048 cm C 504.8 cm D 504,...
*March 22, 2013*

**Pre-Algebra**

Well, Can u give me the answer please it because i'm in a rush..... please and later i tell u the rest please please :( :( :( :( ??????? please please
*March 12, 2013*

**Pre-Algebra**

:( :( :( :( :( :(
*March 12, 2013*

**Pre-Algebra**

PLEASE HELP *I'M SORRY*
*March 12, 2013*

**Pre-Algebra**

I'm not guessing YOU KNOW .!
*March 12, 2013*

**Pre-Algebra**

1) Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,256 ft2 b. 4,189 ft2 c. 1,089 ft2 d. 1,568 ft2 2) Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,257 ft3 b. 4,187 ft3 c. 1,089...
*March 12, 2013*

**Mathhhhhhhh**

Your going to add them, obviously, then take the square root of the number added. and your answer is 20.
*March 12, 2013*

**math**

61/2
*March 11, 2013*

**language arts**

whats a sentence for lukewarm that includes a synonym for the word to help provide a contect clue?
*January 12, 2013*

**Nutrition**

Analyze the causes of anorexia in hospitalized patients. Provide two patient scenarios that commonly result in decreased food intake during prolonged hospitalizations. For each scenario: • Name a specific disease or condition. • State specific medical interventions (...
*December 28, 2012*