physics grade 12.
A spring is extended by 4mm when a load of 2.N was applied. a)What is its spring constant? b)How much would it extend if a losd of 150g was suspended from it?
Sunday, April 14, 2013 at 5:38pm
construct a 90 confidence interval for the population mean ÃÂ¼. assume the population has a normal distribution. A sample if 15 randomly selected math majors has a grade point average of 2.86 with a standard deviation od 0.78. Round to the nearest ...
Sunday, April 14, 2013 at 12:20pm
social studies 8th grade
Can you please help me find an accurate map of The Treaty of Fontainebleau 1762? I am trying to complete a project and want to make sure it is accurate
Saturday, April 13, 2013 at 11:22am
8th Grade Math
I need help on the following please? A group of clowns performs in a ring with an area of about 2,123 square feet. What is the circumference of the ring? Choose the closest answer. 156 ft. 52 ft. 163 ft. 82 ft. Thank You. Please explain the answer
Friday, April 12, 2013 at 9:10pm
Jeremy got scores of 93,82,91, and 88 on his first four math test. What score must he get on the fifth test to have an average test grade of 90 for the five test ? Can someone explain step by step. Please
Thursday, April 11, 2013 at 9:51pm
6th grade grammar
Put brackets [ ] around the adverb in each of the following sentences. Write how if the adverbs tell how, when if the adverbs tells when, or where if the adverb tell where the action takes place. 1.Her grandmother said, You cannot wear it now! Please Help!
Wednesday, April 10, 2013 at 7:03pm
7th grade science
Q: A pair of fruit flies reproduces and has 1000 offspring. All 1000 of the offspring have the alleles Gg. What is the most likely combination of alleles that each parent has, and why are other combinations not likely?
Wednesday, April 10, 2013 at 6:30pm
Venus is a grade 12 learner and she claims that she can shoot a stone 50m vertically high by using a catapult.She wants to know the relationship between the height reached by the stone and the initial velocity of it.
Wednesday, April 10, 2013 at 12:44pm
A behaviorist is asked to evaluate five students in the second grade who exhibit impulse control problems. The behaviorist decides it is best initially to study them in the classroom without interfering with the behavior. This behaviorist is conducting __________ research.
Tuesday, April 9, 2013 at 9:10pm
I am in third grade and have a word problem that I don't understand. There is a picture of a retangular window with 12 little squares inside divided by wood. The question is how many feet of lights would be needed to hang around five windows like this one. There are no ...
Tuesday, April 9, 2013 at 5:31pm
Life science, history, geography, and maths literacy
I'm in grade 11 and i was wondering if you could help me with this question. I'm doing those subjects and i would love to take a career that is linked in those subjects, what would they be?
Monday, April 8, 2013 at 4:09pm
7th grade math
Q:The ratio of the perimeters of two square is 5 to 4. If the area of the smaller square is 36 units, what is the area of the larger square? A: 56.25 My teacher told us the answer, 56.25, so that we could correct it. But I don't understand how she got the answer at all, so...
Sunday, April 7, 2013 at 4:15pm
grade 6 honors math
Of 150 sixth graders choosing electives for next year, 50 signed up for theater, 65 signed up for art and 70 signed up for band. Some students did not choose an elective. Represent this information using Venn Diagrams.
Friday, April 5, 2013 at 11:54pm
A ________ biome is a cold, dry area where the sun barely rises during the winter. a. coniferous forest b. temperate deciduous forest c. grassland d. tundra this is a 7th grade question and can a science teacher help me out on this please so i can study for a make up test ...
Thursday, April 4, 2013 at 6:03pm
There are 12 girls in one of the fifth grade classes. The number of girls is two-thirds the number of boys, b. The number of boys can be found using the equation 2/3b=12. How many boys are in the class?
Thursday, April 4, 2013 at 5:22pm
7th Grade Language Arts
While reading Rudyard Kipling's poem "If," Fred imagined that the speaker was talking directly to him. This reading strategy is called (1 point) connecting. evaluating. interpreting. summarizing. My Answer: 1) A
Wednesday, April 3, 2013 at 5:35pm
7th Grade Language Arts~!!!
What was the first South American nation to receive independence? (1 point) Chile Argentina Paraguay Brazil My Answer: 1) Argentina Is this correct?
Tuesday, April 2, 2013 at 12:28pm
7th Grade Language Arts
Cultural context involves all of the following except the group's __________. (1 point) values wealth customs I think its wealth.. but not sure, am i correct?
Monday, April 1, 2013 at 8:59pm
What is the angle relationship notes for the test i have to take? please help me someone thanks for the help you guys... oh yeah almost forgot this some 7th grade math..
Monday, April 1, 2013 at 5:10pm
grade 12 life orientation
identify and describe 3 environmental health hazards that cause ill health,crises,and disasters within your community or any other community within south africa and globally
Saturday, March 30, 2013 at 2:47pm
Design a class named Book that holds a stock number, author, title, price, and number of pages for a book. Include methods to set and get the values for each data ﬁeld. Also include a displayInfo() method that displays each of the Books data ﬁelds with ...
Saturday, March 30, 2013 at 2:46pm
6th Grade Math
Need help to explain to my daughter: A horsepower is the power needed to lift 33,000 pounds 1 foot in 1 minute. It is equivalent to 746 watts. Express 525 watts as a portion of a horsepower both as a fraction and a decimal rounded to the nearest thousandth. Thanks for anyone...
Tuesday, March 26, 2013 at 8:53pm
IN 10-15 LINES CRITICALLY DISCUSS 5 WAYS IN WHICH THE HUMAN OR ENVIRONMENTAL PROBLEM IMPARTS ON THE COMMUNITY .PROVIDE RELEVANT SOURCES TO SUPPORT YOUR CLAIMS
Tuesday, March 26, 2013 at 5:47pm
6th grade Math
A sample of 50 people in Harrisburg indicates that 10 people of them know the name of the mayor of their neighboring city. Out of 5, 500 Harrisburgh residents, how many would you expect to know the name of the mayor of the neighboring city?
Monday, March 25, 2013 at 7:37pm
8th grade math
In the original design for the livingroom genivie ve planned to have a 6ft by 8ft floor rug made after looking at the budget however she discovers she only had enough money to make a .75 times the size of the original how much fringe must she purchase to outline the new rug.
Monday, March 25, 2013 at 7:22pm
3rd grade math
evan drove into the country for a long weekend. he planned to drive 118 miles on each of 4 days, however his car broke down and he was only able to drive 43 miles on the first day. how many miles per day must he drive to reach his destination.
Monday, March 25, 2013 at 6:54pm
MATH 8 HELP!!!
NYS 8th grade math curriculum 2013???? This year we have a BRAND NEW curriculum. I just want a list of units and topics in each unit because I want to know what I'm learning and what will I learn next (long story....) please help!!!!
Thursday, March 21, 2013 at 6:33pm
7th grade math
A company needs to packages 80 cubic feet of chemicals in to a plastic container, find the whole number dimensions of a container that would use the least amount of plastic
Thursday, March 21, 2013 at 6:33pm
3rd grade math
Benny is using base ten blocks to model 57 divided by 3. he divided the tens in to equal groups. he converted the remaining 10's in to 20 ones. then he divided 20 by 3, and put the ones into equal groups of 6, with 2 leftover. what did he forget to do?
Wednesday, March 20, 2013 at 7:07pm
Riverside oil company in eastern Kentucky produces 3 different grades of gasoline. They are regular, premium, and supreme grades. Each barrel of regular grade sells for $82 while premium grade sells for $88 per barrel and supreme grade sells for $89 per barrel. Petroleum ...
Monday, March 18, 2013 at 11:01am
Math - Grade 5
After saving 4/5 of his salary every month, Zacky has $150 left. Micah saves 6/7 of his salary every month. If both guys save an equal amount each month, how much is their combine salary?
Saturday, March 16, 2013 at 2:11am
The Grade 8 students had a graduation dinner. They paid a flat rate of $125 for the use of the hall, plus $13 for each student who attended. The total cost of the dinner was $944. How many students attended the dinner ? Write an equation to solve the problem.
Thursday, March 14, 2013 at 3:03pm
7th Grade Math
Stacy has a spinner (1-4) and a number cube (1-6). After spinning and rolling the number cube, she will add the two numbers. What is the probability that the sum of the numbers from the spinner and number cube will be 3 or 4?
Wednesday, March 13, 2013 at 5:31pm
Last semester, a certain professor gave 36 As out of 390 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
Tuesday, March 12, 2013 at 9:04pm
Last semester, a certain professor gave 23 As out of 279 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
Sunday, March 10, 2013 at 11:13pm
Physics 11th grade
1) A racing car has a mass of 1525 kg. What is its kinetic energy if it has a speed of 35 m/s? 2) How much potential energy does Tim,with mass 60.0 kg, gain when he climbs a gymnasium rope a distance of 3.5 m? -Benchmark Review-
Sunday, March 10, 2013 at 4:29pm
Is there any websites for teens to read short stories (or long), then you answer ONLY multiple choice questions, grade you, and to have a profile or something to see all of your grades if your making progress each time (to see if your improving). I want to improve my reading ...
Saturday, March 9, 2013 at 12:22pm
4. Identify the appositive phrase in the following sentence. Mrs. Talavera, an eighth grade teacher at Rosewood Middle School, led the community meeting about childhood obesity. A.Mrs. Talavera B.an eighth grade teacher at Rosewood Middle School C.led the community meeting D....
Saturday, March 9, 2013 at 10:48am
Last semester, a certain professor gave 11 As out of 226 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
Saturday, March 9, 2013 at 12:52am
3rd grade math
yolanda plays basketball in a youth league. each game is made up of 4 quarters, and each quarter is 8 minutes long. if yolanda plays every quarter during 7 games, how many minutes does she play in all.
Tuesday, March 5, 2013 at 5:45pm
Math 6th grade
The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?Please help!
Tuesday, March 5, 2013 at 3:33pm
Grade 7 students were surveyed to determine how many hours per day they spent on various activities. Eating is 8%, homework is 8%, sleeping is 33%, TV is 13%, socializing 13%, and school is 25%. About how many hours per day altogether were spent on watching TV and homework?
Tuesday, March 5, 2013 at 8:51am
Assume the body temperature of healthy adults are normally distributed with a mean of 98.20 degrees F (based on data from the Uniservity of Maryland researchers).a. If you have a body temperature of 99.oo degrees F, what is your percentile score? b. Convert 99.00 degrees F to ...
Friday, March 1, 2013 at 6:58pm
1. You are part of a team given the task of designing an application to determine a students letter grade for a short course. The application will process a quiz, a project, a midterm exam and a final exam to determine the total score. The result of dividing the total score by...
Friday, March 1, 2013 at 1:42am