Saturday
April 19, 2014

Homework Help: High School

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science
Northwestern is NOT the name of your school subject,
Thursday, January 30, 2014 at 3:15pm

Science needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Thursday, January 30, 2014 at 3:14pm

social studies(check answers)
please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...
Thursday, January 30, 2014 at 1:50pm

English
I am doing descriptive writing how can i describe a shooting scene in a school? it needs to be detailed, chaotic and interesting
Thursday, January 30, 2014 at 1:30pm

SAT
Please help me. I am a foreign boy. English is not my first language. I find the SAT questions too tough. In my home land we did not learn much english in high school. How can I pass the SAT with a good score?
Thursday, January 30, 2014 at 1:09pm

Physics
An object is dropped from a platform100 ft high. Ignoring wind resistance, how long will it take to reach the ground?
Thursday, January 30, 2014 at 1:05pm

geometry
Dru is challenged by her geometry teacher to estimate the height of the school flag pole without measuring. She decided to walk off the length of the shadow cast by the pole by successively walking the noted length of her shadow. If dry is 5ft 6 in.tall and she estimates the ...
Thursday, January 30, 2014 at 11:10am

psychology
Kevin and Cheryl had completed their first day of naturalistic observation of adolescents at the local high school. As they discussed their experiences during the day, they found that they were both concerned about the difference their presence in the classrooms made on ...
Thursday, January 30, 2014 at 3:44am

science
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:49am

science
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:48am

Physics
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:48am

Science
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:47am

social studies (CHECK ANSWERS)
1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders.(I PICK THIS) C.It ended the revolution. D.It lessened the power of the president. 2. It is hard for children in ...
Wednesday, January 29, 2014 at 11:02pm

Life Management: Please look, just give your opini
1. Which of the following foods are exempt from the food labeling law? *ready to eat foods as foods at a bakery, deli and/or candy store items packaged cereal, bread and crackers sodas fruit juice, milk and cheese 3. Which one of the nutrients listed below has a direct, proven...
Wednesday, January 29, 2014 at 9:52pm

Life Management
1. Which of the following foods are exempt from the food labeling law? *ready to eat foods as foods at a bakery, deli and/or candy store items packaged cereal, bread and crackers sodas fruit juice, milk and cheese 3. Which one of the nutrients listed below has a direct, proven...
Wednesday, January 29, 2014 at 8:48pm

Math
The white house, built 1792, is the oldest federal building in washington DC . The building has undergone extensive remodeling over the years. The main building is 4 stories high and is about 170 ft long by 85 ft wide. If a replica of the white house were made with a length of...
Wednesday, January 29, 2014 at 8:31pm

"Jiskha" Question
So who exactly answers any homework questions I have for school? IM just wondering ya'know?How reliable are the answers? ~fanofchan
Wednesday, January 29, 2014 at 7:23pm

history help plzzzzzz
1. What was the Trail of Tears? (1 point) the nickname given to Manifest Destiny by many Native Americans the battlefield where thousands of Cherokees were killed defending their home territory the path walked by Native Americans as they were forced to relocate to Indian ...
Wednesday, January 29, 2014 at 6:29pm

what can i compare middle school to?
A roller coaster
Wednesday, January 29, 2014 at 6:21pm

geography
poverty and ethnic strife. Greece has a high national debt.
Wednesday, January 29, 2014 at 4:48pm

Social Studies
Who knows how to correlate early child events to later personality? Answer: NO ONE. Yes, I know, there are a lot of opinions on this. Here is what one author guessed: He was a very bright child and was very popular at school, but often clashed with his father over his interest...
Wednesday, January 29, 2014 at 4:02pm

Science
A ball is thrown upward at 20 metres per second off the top of a building that is 12 m high. What is the height of the ball above the ground at its highest poin?
Wednesday, January 29, 2014 at 1:15pm

I don't know.
My only chemistry class was in high school about 65 years ago.
Wednesday, January 29, 2014 at 11:32am

math
Quinn used a scale drawing to build a soccer field near his school. Initially, he wanted the field to be 28 yards long and 17.5 yards wide. He decided to change the length of the field to 36 yards. If the width is to be changed by the same scale factor, what is the new width ...
Wednesday, January 29, 2014 at 11:10am

Calculus
If the dimensions are x wide and y high, then y = 160/x The printed area is a = (x-2)(y-1-7) = (x-2)(160/x - 8) = 176-8x-320/x da/dx = -8+320/x^2 da/dx=0 when x=2√10 Now figure y and you're done.
Wednesday, January 29, 2014 at 6:16am

Physics
A penny is dropped from a 50 m high bridge, how fast was the penny moving when it hit the water?
Tuesday, January 28, 2014 at 9:45pm

Physics
A penny is dropped from a 50 m high bridge, how fast was the penny moving when it hit the water?
Tuesday, January 28, 2014 at 9:45pm

math
Wow,, that must be some school! number of times around = 330/5.5 = 60 times
Tuesday, January 28, 2014 at 9:17pm

math
the distance around the school is 5 and 1/2 miles how many times does jack have to go around the school to travel 330 miles
Tuesday, January 28, 2014 at 9:06pm

Statistics
WEB CALCULATOR EXERCISE Descriptive Statistics 1 The table below presents data for a sample of people who completed a religious survey. Age Gender Denomination Church Attendance 56 1 7 4 46 2 6 5 49 2 6 5 49 1 1 5 27 2 9 5 51 1 4 2 47 2 2 3 67 1 5 4 49 2 2 6 33 1 12 6 55 2 9 5...
Tuesday, January 28, 2014 at 8:56pm

Physics
A dirt biker races up a 15° incline and then takes off in an attempt to clear an obstacle. The end of the ramp is 3 m off the ground. A 4-m high obstacle is located 20 m from the base of the ramp. What minimum take-off speed is required for the daredevil to clear the ...
Tuesday, January 28, 2014 at 8:24pm

algebra 1
frosting a layer cake involves frosting the top, a middle layer and the outside. A typical cake has a 9 inch diameter and is 4 inches high. Calculate the surface area of the cake that is frosted
Tuesday, January 28, 2014 at 8:04pm

Algebra 1
Matthew's wading pool is 6-fet across and 18 inches high. How much water does it take to fill the pool a foot deep?
Tuesday, January 28, 2014 at 5:51pm

Math
I was out of school for 4 days! I tried to catch up but....I need help with There are 20 muffuns on a plate. 2/5 are chocolate. 3/10 are vanilla. How many chocolate how many vanilla? Challenge: Rest are blueberry how many blueberry? Can somebody answer this for me and show me ...
Tuesday, January 28, 2014 at 3:35pm

what can i compare middle school to?
a fishtank
Tuesday, January 28, 2014 at 1:14pm

Psychology?
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. It seems like Margo.
Tuesday, January 28, 2014 at 1:02pm

math needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Tuesday, January 28, 2014 at 1:00pm

literature
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Tuesday, January 28, 2014 at 12:59pm

Physics
A small rocket is fired in a test range. It rises high into the air and soon runs out of fuel. On the way down it passes near an observer (sitting in a 22.5-m-high tower) who sees the rocket traveling at a speed of 37.9 m/s and moving in a vertical plane at an angle of 50.8&...
Tuesday, January 28, 2014 at 12:00am

physics
a projectile is ejected from a 25 m high tower with a velocity of 40 m/s at an angle of 30 degrees to the horizontal first on Earth and then on Mars. What is the ratio of the time taken to hit the ground on Mars compared to Earth? (Assume gravity on mars = .38gEarth) The ...
Monday, January 27, 2014 at 6:49pm

Plz help. :(
1. When are you going to learn that something other than the actual SUBJECT in the School Subject box won't get you faster replies? 2. What is there about Ms Sue's previous reply that is hard to understand? http://www.jiskha.com/display.cgi?id=139​0855800
Monday, January 27, 2014 at 6:07pm

Plz help. :(
7. Select the skill-related component which is defined as the ability to combine strength and speed while you are moving. balance coordination *** power speed 8. At the paintball field, Wynonna is always the first one on her team to be hit with the paintball and put out of the...
Monday, January 27, 2014 at 5:11pm

PE-check my answers
7. Select the skill-related component which is defined as the ability to combine strength and speed while you are moving. balance coordination *** power speed 8. At the paintball field, Wynonna is always the first one on her team to be hit with the paintball and put out of ...
Monday, January 27, 2014 at 3:50pm

life orientation
It sounds like the name of a class you're taking in school. What are you studying in this class?
Monday, January 27, 2014 at 10:27am

Statistics
The variance of the mathematical scores of a sample of 21 high school girls was found to be 100 and that of a sample of 25 high school boys was 169. Test the hypothesis that the scores of the high school boys are more varying that those of the high school girls at alpha = 0.05...
Monday, January 27, 2014 at 10:22am

Algebra
a rock is thrown upward with a velocity of 20 meters per second from the top of a 40 meter high cliff, and it misses the cliff on the way back down. when will the rock be 7 meters from the water, below? round your answer to two decimal places
Sunday, January 26, 2014 at 11:29pm

physics
I was absent on Thursday and school was canceled Friday due to ice... its due at 10pm
Sunday, January 26, 2014 at 9:43pm

Science~!!!
total energy? PE depends on how high it is, KE depends on movement.
Sunday, January 26, 2014 at 9:24pm

MATH
In a school library, there are 3 Chinese Language books for every 5 English Language books. The number of Malay Language book is 5/9 as many as the Chinese Language books. Find the ratio of the number of Malay Language books to the number of English Language books. (Express ...
Sunday, January 26, 2014 at 7:52pm

Math
The ratio of boys to the total number of students in a school play is 7:10. There are 9 girls in the school play. How many students are in the school play?
Sunday, January 26, 2014 at 2:29pm

Science
A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high,after how many seconds will it strike the plane at the foot of the cliff.at what distance from the foot of the cliff will it strike and with what velocity will it strike the ground.
Sunday, January 26, 2014 at 10:01am

Physics
A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high,after how many seconds will it strike the plane at the foot of the cliff.at what distance from the foot of the cliff will it strike and with what velocity will it strike the ground.
Sunday, January 26, 2014 at 9:59am

Physics
A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high,after how many seconds will it strike the plane at the foot of the cliff.at what distance from the foot of the cliff will it strike and with what velocity will it strike the ground.
Sunday, January 26, 2014 at 9:59am

calculus
"superman is in level flight 6 miles above ground. his flight plan takes him directly over whs high school. how fast is he flying when the distance between him and the whs high school is exactly 10 miles and the rate is increasing 40mph?" i keep getting: r = 10 r'...
Saturday, January 25, 2014 at 10:34pm

Chem
So I did a titration at school the other day and one of the questions is asking us to calculate the molarity of a solution but I don't know the # of moles of the solute. I know to calculate the molarity=# moles/ liters.
Saturday, January 25, 2014 at 10:03pm

calculus
Let his horizontal distance over the high school be x let the distance between him and the school be y I see a right-angled triangle and x^2 + 6^2 = y^2 2x dx/dt + 0 = 2y dy/dt , #1 when x = 10, y^2 = 100 + 36, y = √136 in equation #1 2(10) dx/dt = 2(√136) (40) dx/...
Saturday, January 25, 2014 at 10:00pm

calculus
"superman is in level flight 6 miles above ground. his flight plan takes him directly over whs high school. how fast is he flying when the distance between him and the whs high school is exactly 10 miles and the rate is increasing 40mph?" i keep getting: r = 10 r'...
Saturday, January 25, 2014 at 9:18pm

neiu
Is your school subject really neiu?
Saturday, January 25, 2014 at 4:51pm

Survey Assignment
I have an assignment for school to create a survey. Please take a few minutes to complete the survey below. Thanks! surveymonkey. com/s/5DWDTJZ
Saturday, January 25, 2014 at 1:32pm

Maths literacy,life science,history,geography
I assume there is a college counselor in your school. You can get much more help there than in a few brief paragraphs here. Heck, you might even try a little research on line yourself, eh? No matter which career path you choose, you will need to learn how to find out ...
Saturday, January 25, 2014 at 11:37am

EARTH SCIENCE
Cumulus and stratus clouds belong to which cloud group? A. Puffy clouds B. High clouds C. Middle clouds D. Low clouds Is it A? What is the basic cause of ocean tides? A. Gravitational force of volcanic activity B. Gravitational attraction between the Moon and the entire solar...
Saturday, January 25, 2014 at 11:12am

physics
A) A hot air balloon has just lifted off and is rising at the constant rate of 1.70 m/s. Suddenly, one of the passengers realizes she has left her camera on the ground. A friend picks it up and tosses it straight upward with an initial speed of 10.4 m/s. If the passenger is 3....
Saturday, January 25, 2014 at 10:08am

Accounting,business studies,economics and maths literacy
I am doing mathlit,business ,accouting economics ,Life orientatin ,english and afrikaans so i wanna ask would i be able to go to university or what will be able to do when i finish school
Saturday, January 25, 2014 at 4:21am

Physics
v = Vi - g t at max height, v = 0 0 = Vi -gt so t at top = Vi/g How high does it go? 20 = Vi t - (1/2)g t^2 20 = Vi (Vi/g) - (1/2) gVi^2/g^2 20 = (1/2) Vi^2/g 40 (9.81) = Vi^2 Vi = 19.8 m/s when does v = 19.8/2 or 9.9 m/s v = Vi - g t 9.9 = 19.8 - 9.81 t 9.81 t = 9.9 t = 1 second
Friday, January 24, 2014 at 7:37pm

Fractions
My teacher showed me in a way from like a few weeks ago. I almost don't remember. I saw from other part of my homework but they were unit fractions. The questions are high level because they are Enrich level. So its kind of hard.
Friday, January 24, 2014 at 5:41pm

Physics
A man weighing 700 N lifts a 50.0 N object 2.0 m high. He uses a lever and with a force of 10.0 N. What is the resistance force? Answer: 50.0 N
Friday, January 24, 2014 at 5:36pm

Anatomy & Physiology
1. What are the constituents of DNA? A. Sugars and lipids B. Proteins and sugars C. Sugars, phosphates, and nitrogenous bases D. Lipids, nitrogenous bases, and proteins 2. What is the mechanism that maintains a stable environment within the body? A. Symptoms B. Syndrome C. ...
Friday, January 24, 2014 at 3:50pm

english
In which sentence is the underlined phrase a prepositional phrase functioning as an adjective? She went to boarding school in Coventry. My sister was born in Chicago. Her grades gave my sister a place in the top rank of her class. My sister moved away in 2009
Friday, January 24, 2014 at 2:30pm

Math!
A frame of movie film is 35mm wide and 26.25mm high. The film projects an image 8m wide. How high is the image?
Thursday, January 23, 2014 at 10:31pm

vocabulary
As we returned to the dressing room after that terrible first half, the whole atmosphere seemed to be (pervaded, capsized) by defeat. Ans. capsized?? With eager students and able teachers, learning will (flourish, outstrip), even though the school building may be old and ...
Thursday, January 23, 2014 at 9:40pm

Physics
Student A is on a 9m high bridge while Student B is on the ground. Student B throws an apple up to Student B with a velocity of 18m/s. How long does it take for the apple to reach student A's hand? if student A is unable to catch the apple, how long would it take for the ...
Thursday, January 23, 2014 at 9:23pm

Physics
sorry I meant 9m high bridge
Thursday, January 23, 2014 at 9:19pm

math
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Thursday, January 23, 2014 at 8:42pm

physics
A tennis ball has a mass of 0.057 kg. A professional tennis player hits the ball hard enough to give it a speed of 52 m/s (about 117 miles per hour.) The ball moves toward the left, hits a wall and bounces straight back to the right with almost the same speed (52 m/s). As ...
Thursday, January 23, 2014 at 4:55pm

Anatomy & Physiology
Someone please check my answer and tell me if they are right or wrong. 1. What are the constituents of DNA? A. Sugars and lipids B. Proteins and sugars C. Sugars, phosphates, and nitrogenous bases D. Lipids, nitrogenous bases, and proteins 2. What is the mechanism that ...
Thursday, January 23, 2014 at 4:00pm

Elle
At the school carnival popcorn was given out in paper cones like the one shown(3-diameter and 5 being the height of the cone). Approximately how many cubic inches of popcorn can the cone hold? 1/3TT r^2 h 1/3 TT(1.5)^2(5) 11.78 is approximately 12 cubic inches of popcorn
Thursday, January 23, 2014 at 2:45pm

Anatomy & Physiology
No but my brother would, but he's at school sorry.
Thursday, January 23, 2014 at 2:39pm

Anatomy & Physiology
Wait is this college stuff or high school stuff?
Thursday, January 23, 2014 at 2:31pm

English
Basically its a shooting in a school and the students are full of fear.
Thursday, January 23, 2014 at 2:20pm

Language Arts 8th
1. A person who translates speeches would have to know how to (1 point) draw pictures. use a microphone. speak many languages. interpret body language. 2. If a horse came barreling across the field, what was the horse doing? (1 point) leaping in the air slowing down moving ...
Thursday, January 23, 2014 at 1:06pm

English - Debate writing
school debate on the motion boys,should not help in the kitchen. write your speech for oragainst the motion.
Thursday, January 23, 2014 at 12:59pm

Language Arts
1 - Joshua won the school's essay contest three years in a row. simple sentence complex sentence <---- subordinate clause noun clause 2 - Singing loudly in the shower is what Jessica loves to do every morning. gerund phrase <----- participial phrase appositive phrase...
Thursday, January 23, 2014 at 11:58am

maneledzi secondary school
Two forces of 5N and 12N respectively act on the same point.show how you would determine the magnitude of the resultant by using the tail-to-head and tail-to-tails methods and pythagora's theorem.[13N]
Thursday, January 23, 2014 at 11:40am

science
An object 3 cm is high is placed 24 cm away from a convex lens of focal length 8 cm. Find nature position and height of the image?
Wednesday, January 22, 2014 at 11:20pm

Physics
A tennis ball is thrown up with an initial speed of 22.5m/s. It is caught at the same distance above the ground. A) how high does the ball rise B) how long does the ball remain in the air?
Wednesday, January 22, 2014 at 9:14pm

Pre-Calc
A page that is x inches wide and y inches high contains 30 square inches of print. The top and bottom margins are 2 inches deep, and the margins on each side are 2 inches wide. a. draw a diagram that gives a visul representation of the problem. b. show that the total area A on...
Wednesday, January 22, 2014 at 8:10pm

Physics
bullet momentum up = .005 * 320 = 1.6 kg m/s If the momentum of the block down is 1.6 then they both come to a stop Vdown = g t momentum down = m g t so when m g t = 1.6, they stop .5*9.81*t = 1.6 t = .326 seconds how high is the block then? h = 15 - (1/2)g t^2 h = 15 - 4.9(....
Wednesday, January 22, 2014 at 6:41pm

Ms sue
Some examples of various social situations: a backyard barbecue a child's third birthday party a club luncheon a high school dance a graduation party a retirement party a class reunion
Wednesday, January 22, 2014 at 6:37pm

Phys/Ed
1. Select the skill-related component which is defined as the ability to combine strength and speed while you are moving. (1 point) balance coordination power speed 2. At the paintball field, Wynonna is always the first one on her team to be hit with the paintball and put out ...
Wednesday, January 22, 2014 at 4:57pm

science
A rider with his bike, weighing a total of 300 kg jumps off a sloped ramp with a speed of 5.5 m/s. How high will the biker jump with this speed?
Wednesday, January 22, 2014 at 3:43pm

Patterns,Algebra ans Functions
This line represents the line on a graph tha shows how long it took Khalil to walk to school.The horizontal axis shows the time and the vertical axis shows blocks covered.Explain what you think happened on Khalil's way to school?
Wednesday, January 22, 2014 at 12:16pm

business
In my school i'm doing that subject maths literacy,business,economics,accounting and I want to be a manager what the job i will get
Wednesday, January 22, 2014 at 11:28am

Math
Tickets to a school play were $5 for adults and $3 for students. A total of 247 tickets were sold for a profit of $1000. How many adult tickets an student tickets were sold?
Wednesday, January 22, 2014 at 9:57am

math
Daytime high temperatures in New York in February are normally distributed with an average of 30.2º and a standard deviation of 8.5º. Estimate the probability that the temperature on a given day in February is 22º or lower.
Wednesday, January 22, 2014 at 7:06am

Physics
an object 2.6 cm high is 24cm from concave mirror whose radius of curvature is 16cm. Determine the location of its image. the answer is 12cm in front of mirror. I want to know what to get this. What steps and which formulas are used? please help
Wednesday, January 22, 2014 at 1:26am

intro to computers
what type of device is characteristic of an enterprise environment? a workstation used by a retired person. a workstation used at an engineering firm. a tablet computer used by an elementary school student a notebook used by a college student
Tuesday, January 21, 2014 at 6:33pm

Algebra 2/ Trig
Igor is flying a kite. he has let out 300 feet of kite string. the string makes an angle of 64 degrees with the level ground. To the nearest foot, how high is his kite?
Tuesday, January 21, 2014 at 5:53pm

Maths
From the top of a building 120m high, the angle of depression of two cars on the ground in line with the base of the building are 18' and 65' respectively. Calculate the distance between the cars.
Tuesday, January 21, 2014 at 3:56pm

Alina !@#$%^&zubak
It wouldn't have happened if you'd followed directions about your first name and school subject.
Tuesday, January 21, 2014 at 12:24pm

Maphokwane high school
The area or environment will be totally uncivilized 2.poverty will take place 3.more members of the community will be lost due to lack of knowledge 4.crime rate will increase due to drop out teenagers i just dont understand the question
Monday, January 20, 2014 at 10:32pm

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