Friday

December 19, 2014

December 19, 2014

Post a New Question | Current Questions

**social studies please check!**

1. Why did Harry Briggs and other parents sue the Summerton School District? A. They believed black schools weren't equal to white schools, so the schools should be integrated*** B. The state did not want to equalize the school work done by white and black schools C. They ...
*Tuesday, May 13, 2014 at 10:33am*

**English**

Thank you very much. I still have these sentences I'm doubtful about. My doubt is whether I should use the present perfect or the simple past (considering that it is the end of the school year) 1) Exercises for literary text analyses aimed at developing lexicon have been ...
*Monday, May 12, 2014 at 4:07pm*

**algebra**

θhe height h in feet of a car above the exit ramp of an amusement park′s free-fall ride can be modled by the equation h=−16t<E> 6<E>+s where t is the time in seconds after the car drops s is the starting height of the car in feet. How high above ...
*Sunday, May 11, 2014 at 11:14pm*

**physics**

If I am standing on top of a building that is 350 ft. high and I throw a baseball off the roof at angle of 60 degrees, determine how long the ball is in the air as well as how far it lands from the building.
*Saturday, May 10, 2014 at 12:23pm*

**math**

The grade 8 class at Wheatly Middle School sold 77 boxes of almond chocolates. This is 22% of all the boxes of chocolate sold. a) Estimate the total number of boxes sold. b) Calculate how many boxes were sold.
*Friday, May 9, 2014 at 4:28pm*

**HELP!!!!!!!!!!!!**

What GPA (percentage not on 4.0 scale) makes the top five percent at your high school class? Out of 225 students
*Friday, May 9, 2014 at 3:53pm*

**health pllz help me i have trouble **

1. Haley is excited about a new activity she learned about while surfing the Internet called orienteering. Which community group would most likely be able to give her a good start in this activity? (1 point)church youth group dance team drama club Girl Scouts 2. Select the ...
*Friday, May 9, 2014 at 2:25pm*

**brilint stars**

there is a frog inside a well 40 m deep. the frog jumps 3 m high and falls back 2m . in how many jumps will it come out of the well ? (answer is 38 ) how
*Friday, May 9, 2014 at 1:18pm*

**brilient school**

the melting point of mercury is -39 degree C .the freezing point of alcohol is -98 degree C .how much more is the melting point
*Friday, May 9, 2014 at 12:50pm*

**brilient stars**

there is a frog inside a well 40m deep.the frog jumps 3m high and falls back 2m . in how many jumps will it come out of the well?
*Friday, May 9, 2014 at 12:43pm*

**Driver Education**

Attention fatigue is the result of (1 point) physical exertion. boredom. mental exertion. lack of sleep. 2. Fatigue affects your ability to (1 point) understand traffic signals. perceive and respond to threats. recognize objects. avoid pedestrians. 3. The body's natural ...
*Friday, May 9, 2014 at 5:23am*

**new neutrich high school**

what is the independent and dependent variable if in every 29 minutes jogging burns 200 calories?
*Friday, May 9, 2014 at 4:25am*

**Physics**

A 2kg begins at the top of a 1m high frictionless, inclined plane on top of a 1.5m high table. If it is loaded onto a spring with spring constant 50N/m and compressed 10 cm from equilibrium and then released, how far from the edge of the table will the block land?
*Friday, May 9, 2014 at 1:21am*

**Math**

I know some of these are really simple, and I can figure them out easy enough, but please answer all questions. I'm learning this subject, but I have to complete the entire school year within a month and I'm up to my head in homework and I just don't have time to ...
*Thursday, May 8, 2014 at 8:45pm*

**math**

A room is18 ft long 14 ft wide and 8 ft high. Find the cost of carpeting the floor with carpet $5\ft2
*Thursday, May 8, 2014 at 8:17pm*

**Physics**

A daredevil performs a stunt in which he jumps with his motorcycle from a horizontal cliff 10m high. What must the initial velocity of the motorcycle be, in order for the stuntman to barely clear a 10m wide water canal at the base of the cliff?
*Thursday, May 8, 2014 at 7:12pm*

**troy Academy**

based on the results of the studies, what should an elementary school teacher do to ensure that a child with an unusual name develops normal intellectual ability
*Thursday, May 8, 2014 at 4:38pm*

**Physics 270-1 Applied**

A rock is thrown down with an initial speed of 30.0ft/s from a bridge to the water below. It takes 3.50s for the rock to hit the water. (a) Find the speed (in ft. /s) of the rock as it hits the water. (b) How high is the bridge above the water?
*Thursday, May 8, 2014 at 3:18pm*

**Math**

A satellite dish in storage has parabolic cross sections and is resting on its vertex. A point on the rim is 4 ft high and is 6 ft horizontally from the vertex. How high is a point which is 3 ft horiozntally from the vertex? Draw a sketch and solve.
*Thursday, May 8, 2014 at 8:36am*

**geometry**

Bob's Barricades rents orange plastic cones to use as barricades in road construction. Each cone is 24 inches high with a diameter of 14 inches. A gallon of orange paint will cover approximately 400 square feet. About how many whole gallons of paint will Barb need to paint...
*Wednesday, May 7, 2014 at 8:28pm*

**math**

Problem Solving and Explain. The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies will wee need to buy...
*Wednesday, May 7, 2014 at 7:16pm*

**Math**

Problem: The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies will wee need to buy for the Coast Trip?
*Wednesday, May 7, 2014 at 6:39pm*

**Physics**

On a roller coaster ride the cart is 250 kg. Initially, the cart is traveling at 5 m/s at the upper level, and then 25 once it reaches the flat lower level that is 8 m off the ground. How high up is the upper level?
*Wednesday, May 7, 2014 at 4:35pm*

**trig**

On an inclined road, which makes an angle of 25 degrees with the horizontal plane, stands a vertical tower. At a point Q, 150 ft from the base of the tower down the road, the angle of elevation to the top of the tower is 65. How high is the tower?
*Tuesday, May 6, 2014 at 11:58pm*

**Math 3**

A school cafeteria serves. 60,000 ounces of milk during a 3 school week period. If the same amount is served each day, how much milk does the cafeteria serve each day?
*Tuesday, May 6, 2014 at 11:49pm*

**Math**

When an engineer inspects a pipeline she notices a high water mark. How much space is there between the high water level and the top of the pipe, to the nearest hundredth. The diameter of the pipe is 1.2m and the horiztonal distance across the surface of the water is 80 cm.
*Tuesday, May 6, 2014 at 11:46pm*

**social studies PLEASE CHECK**

1. which is an event of the progressive era enacted by the local government in South Carolina? a. the first grange chapter was established for farmers b. the grandfather clause gave poor whites the right to vote c. blacks were disfranchises through a poll tax d. a law ...
*Tuesday, May 6, 2014 at 8:59pm*

**English**

Identify the sentence that is punctuated correctly. A. Although, the impact on our planet is clear global warming was not a high priority for many years. B. Although the impact on our planet is clear, global warming was not a high priority for many years. C. Although the ...
*Tuesday, May 6, 2014 at 5:45pm*

**Math**

You are surveying students to find out their opinion of the quality of food served in the school cafeteria. You decide to poll only those students who buy hot lunch on a particular day. Is your sample random? Explain I think it would be but I'm not sure.
*Tuesday, May 6, 2014 at 3:03pm*

**history**

it was economist david ricardo who said that because of the pressure of population growth, wages would be just high enough to keep workers from starving; this was called the ________.
*Tuesday, May 6, 2014 at 2:29pm*

**Accounting**

Use the following information to answer questions 5-7. Blue Bird Bus Company is suffering declining sales of its principal product, school buses. The bank has threatened to call due a note if the company’s net income declines next year. The president, Joe Blow, talks to ...
*Tuesday, May 6, 2014 at 11:41am*

**Accounting**

The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually high. The corporate tax rate is also high this year but it is scheduled to decline significantly next year. In light of this information, the ...
*Tuesday, May 6, 2014 at 11:40am*

**Chem Check Please!!!**

If an octahedral iron(II) complex is diamagnetic, which of the following sets of conditions best describes the complex? a. low-spin, Delta 0 small b. low-spin, Delta 0 large c. high-spin, Delta 0 small d. high-spin, Delta 0 large e. none of these Answer C or D not sure
*Tuesday, May 6, 2014 at 11:24am*

**Chem Check Please!!!**

All of the following statements concerning crystal field theory are true EXCEPT a. in low-spin complexes, electrons are concentrated in the dxy, dyz, and dxz orbitals. b. in an isolated atom or ion, the five d orbitals have identical energy. c. low-spin complexes contain the ...
*Tuesday, May 6, 2014 at 11:23am*

**Math**

Carrie asked 50 randomly selected middle school students at Kind's High School about their favorite fast food item. Twenty-one selected french fries. If there are 350 middle school students at King's High School, estimate how many will select french fries as their ...
*Tuesday, May 6, 2014 at 10:18am*

**physics**

Low E on a guitar vibrates at 82.4 Hz and the guitar is 62.8 cm long. How long would the same string have to be to vibrate at high E 329.6 Hz. Assume that both strings vibrate at the fundamental frequency for the string.
*Tuesday, May 6, 2014 at 3:27am*

**Accounting**

NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 1-4. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually high. The corporate ...
*Monday, May 5, 2014 at 10:43pm*

**English**

Identify the sentence that is punctuated correctly. A. The operating costs, as he probably told you, are too high. B. The operating costs, as he probably told you are too high. C. The operating costs as he probably told you, are too high. D. The operating costs as he probably ...
*Monday, May 5, 2014 at 10:01pm*

**English**

Identify the sentence that is punctuated correctly. A. Although, the impact on our planet is clear global warming was not a high priority for many years. B. Although the impact on our planet is clear, global warming was not a high priority for many years. C. Although the ...
*Monday, May 5, 2014 at 9:51pm*

**English**

Identify the correct sentence. A. The high school is located at 15385 Sheridan St., Pembroke Pines, FL. B. The high school is located at 15385 Sheridan Street, Pembroke Pines, Florida. C. The High School is located at 15385 Sheridan Street, Pembroke Pines, Florida. D. The High...
*Monday, May 5, 2014 at 8:53pm*

**Accounting; Emergency**

NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 1-4. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually high. The corporate ...
*Monday, May 5, 2014 at 5:01pm*

**physics**

Stuck on this homework problem, any help would be appreciated. Thank you!! A truck has 5.9L diesel engine in it. 5.9L of the overall displacement in 6 cylinders each 102mm bore (diameter) and 120mm stroke (length). Engine operates at 16.3:1 compression ratio and with 6psi (0....
*Monday, May 5, 2014 at 4:55pm*

**Physics**

A fisherman who lives in a high rise apartment building in Toronto, weighs a fish on a spring scale and records a 11.2 N reading. He reweighs the fish while he is in his elevator and records a reading of 13.1 N. What is the acceleration of the elevator at that moment?
*Monday, May 5, 2014 at 4:16pm*

**Pre - Cal**

1. Find the vertex of the parabola: 4y^2+4y-16x=0 2. Find an equation of the parabola, opening down, with vertex (-3,1) and solution point (4,-5). 3. The main cables of a suspension bridge are 20 meters above the road at the towers and 4 meters above the road at the center. ...
*Monday, May 5, 2014 at 1:51pm*

**chemistry**

Pasta packages often have different direction for cooking at high altitudes. a.) According to the directions, should you boil the pasta for a longer to shorter time? Why? b.) If the pasta water boils rapidly over medium-high heat, is there any reason to turn the heat up all ...
*Sunday, May 4, 2014 at 11:28pm*

**Accounting**

NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 1-4. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually high. The corporate ...
*Sunday, May 4, 2014 at 11:02pm*

**english**

Paraphasing practice In 1857, a British expedition led by Richard Burton and John Speke set out to find the great lakes shown on Ptolemy's map. After reaching Lake Tanganyika, the two men split up because Burton was ill. --------------------------------------- "Who ...
*Sunday, May 4, 2014 at 2:13pm*

**Physics**

A soccer player kicks a 0.43 kg ball straight up to see how far it will rise. The ball starts with a velocity of 16m/s at a height of 0.85m above the ground. It rises then falls straight down to the ground. a) what is the total energy of the ball just after it is kicked? b) ...
*Sunday, May 4, 2014 at 12:37pm*

**Ethics in Criminal Justice**

Which of the following, according to Carl Klockars, is NOT an important consideration in determining whether the good ends of police work justify immoral means in a given scenario? A. Are there other, non-dirty, means that may be effective but that we may be overlooking? B. ...
*Sunday, May 4, 2014 at 12:16pm*

**English**

It for speech i represent at school.english is the language of opportunity.why bother to teach indigenous languages?
*Sunday, May 4, 2014 at 5:14am*

**Accounting Questions**

NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 1-4. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually high. The corporate ...
*Saturday, May 3, 2014 at 10:14pm*

**hostos**

the average math sat score is 500 with a standard deviation of 100. a particular high school claims that its students have usually high math SAT scores a random sampel of 50 students from this school was selected, and the mean math sat score was 530 . Is the high school ...
*Saturday, May 3, 2014 at 7:50pm*

**PLEASE HELP!! Org. & Admin. of Sports & Recreation**

The least valid qualification in hiring a coach is: (A) A College superstar B Thorough knowledge of rules and techniques C Ability to teach D Understanding of players E Desirable personality The interests of all athletes participating are best served if: (C) A The present ...
*Saturday, May 3, 2014 at 10:47am*

**Fitness And Nurition**

Greetings! I did my homework, but I don't know if my answers are right or not. I wanted to know if you can help. My answers will be with a * beside it. 1. Which one of the following choices is a mental symptom of distress? A. Memory loss B. High self-esteem C. ...
*Friday, May 2, 2014 at 5:54pm*

**math**

what does linear an nonlinear functions mean? I need help asap please i am begging you because i am a new student at this school and i don't get what the difference is between linear and nonlinear functions.
*Friday, May 2, 2014 at 3:02pm*

**Physics (URGENT!!!)**

A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage: a) How long was the bullet in the air? b) How far from the base of the parking garage did the ...
*Friday, May 2, 2014 at 12:53pm*

**Physics**

A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage: a) How long was the bullet in the air? b) How far from the base of the parking garage did the ...
*Friday, May 2, 2014 at 2:37am*

**Math**

Your school is planning to put an aquarium with 30 fish in it in the main lobby. To accommodate this number of fish, the aquarium should be between 50 and 60 cubic feet of water. To help reduce costs, the surface area of the aquarium should be no more than 80 feet square. Do ...
*Thursday, May 1, 2014 at 9:23pm*

**History8**

In Westside Community Schools v. Mergens, the Supreme Court ruled in favor of the __________, stating that it was a violation of __________. A.principal . . . church and state B.students . . . their First Amendment rights C.students . . . their patriotic rights D.principal...
*Thursday, May 1, 2014 at 6:11pm*

**trig**

A soccer ball is placed 12 ft away from a goal post that measures 8ft high. You kick the ball and it hits the crossbar at the top of the goal. What was the angle of elevation of your kick?
*Thursday, May 1, 2014 at 5:08pm*

**Data math help 7th**

Jeri asked 40 random students at his school to name their favorite ice cream flavor. Of the 40 students he asked, 25 of them preferred chocolate. Based on Barry's results, how many ff the 1200 students in the school most likely prefer chocolate ice cream?
*Thursday, May 1, 2014 at 2:30pm*

**Statistics **

You want to know if there's a difference between the proportions of high school students and college students who read newspapers regularly. out of a random sample of 500 high-school students, 287 say they read newspapers regularly, and out of a random sample of 420 ...
*Thursday, May 1, 2014 at 11:45am*

**Statistics **

You want to know if there's a difference between the proportions of high school students and college students who read newspapers regularly. out of a random sample of 500 high-school students, 287 say they read newspapers regularly, and out of a random sample of 420 ...
*Thursday, May 1, 2014 at 11:37am*

**consumer math**

You wish to paint a storage shed. Its four walls measure 7 ft. high and 8 ft. wide each. If one gallon of paint covers 160 sq. ft., how many gallons of paint will you need?
*Thursday, May 1, 2014 at 11:00am*

**statistics**

construct a 95% confidence interval for the difference betwen the proportions of high-school students an college students who read newspapers regularly.
*Wednesday, April 30, 2014 at 12:03am*

**Math**

You want to conduct a survey to find out what sport the students at your school prefer to play. a) You interview 20 boys playing football at lunch. Is this a random sample? explain b) The survey question you ask is, ''What is your favorite sport to play?'' Is ...
*Tuesday, April 29, 2014 at 11:19pm*

**Science**

Which of the following would have the greatest force? an object with low mass accelerating slowly an object with low mass accelerating quickly an object with high mass accelerating quickly<--- an object with high mass accelerating slowly
*Tuesday, April 29, 2014 at 2:13pm*

**Math! Helppppp**

Two poles are place 15 feet apart. One pole is 8 ft high and the other pole is 16 ft high. The top of each pole is attached to the base of the other by cable which run in a straight line. -Find the slopes of the lines defined by the two ropes. -How high above the ground is the...
*Tuesday, April 29, 2014 at 1:54pm*

**School Help**

current conditions of health? and do they need UNDP Assistance ???
*Monday, April 28, 2014 at 11:22pm*

**Math **

A calendar that has one page per day is 7 inches long, 7 inches wide, and 2 inches high. What is the volume of one page of the calendar? Round your answer to the nearest thousandth.
*Monday, April 28, 2014 at 7:38pm*

**Homework helpline?**

Is there a homework helpline for college level I can call and ask homework questions through the phone? I know there is one that is available for elementary school and middle school, and it would seem a little ludicrous for one to be available for this level, but are there any...
*Monday, April 28, 2014 at 6:41pm*

**Language. Check answer **

Revising sentences for agreement. There is either an error in subject-verb agreement or an error in pronoun-antecedent agreement 1. Many a girl has taken Shirley Chisholm as their model of success. My answer: Many girls has took Shirley Chisholm as their model of success. 2. ...
*Monday, April 28, 2014 at 6:24pm*

**physics**

A child and sled with a combined mass of 48.4 kg slide down a frictionless hill that is 7.15 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
*Monday, April 28, 2014 at 4:55pm*

**Physics**

A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage:
*Monday, April 28, 2014 at 2:17pm*

**Scoiolgy**

s Which of the following would be the best example of a total institution? A. A mental hospital B. A private university C. A parochial school D. A baseball team A
*Sunday, April 27, 2014 at 7:36pm*

**Statistics**

Health issues due to being overweight affect all age groups. of children and adolescents 6-11 years of age,18.8% are found to be overweight. A school district randomly sampled 130 in this age group and found that 20 were considered overweight. at Alpha =.05 is this less than ...
*Sunday, April 27, 2014 at 3:55pm*

**modern wo rld history**

high school Did Kennedy avert the Cuban Missile Crisis?
*Sunday, April 27, 2014 at 11:03am*

**english**

plzzzz someone help fast i need to complete my aasignment tell me some points on unsafety of children in school buses and vans
*Sunday, April 27, 2014 at 10:39am*

**english**

tell me some points on unsafety of children in school buses and vans
*Sunday, April 27, 2014 at 10:33am*

**ag 1**

The average daily high temperature for the month of may in ocaia Florida is appromaimated by thee function. F(n)=0.2n+80. Where n is the day of the month
*Sunday, April 27, 2014 at 1:21am*

**h school**

Which of the following is an abundant natural resource found in Canada?
*Saturday, April 26, 2014 at 2:54pm*

**physics**

A stone is dropped from the deck of the bridge. The sound of the splash reaches the deck 3 seconds later. If sound travels at 342 m/s in still air, how high is the deck of bridge above the water?
*Saturday, April 26, 2014 at 6:17am*

**Calculus**

How fast must you release the string of your kite if the kite that you are flying is 40 meters high, 50 meters away from you and moving horizontally away at rate of 30 meters per minute?
*Friday, April 25, 2014 at 10:13pm*

**calculus help**

At time t=0, an astronaut stands on a platform 3 meters above the moon's surface and throws a rock directly upward with an initial velocity of 32 m/sec. if the acceleration due to gravity is 1.6 m/sec^2. a) find the equations of motion for the throwing of this rock. -1. a(...
*Friday, April 25, 2014 at 5:48pm*

**math**

a person was climbing on a building. He slips 1 m for every 5 metre he climbs up. If the building is 53 m high and he takes 5 seconds to climb 1 metre find the total time taken by him to get on the top of the building.
*Friday, April 25, 2014 at 1:00pm*

**Calculus Help Please Urgent!!!**

At time t=0, an astronaut stands on a platform 3 meters above the moon's surface and throws a rock directly upward with an initial velocity of 32 m/sec. if the acceleration due to gravity is 1.6 m/sec^2. a) find the equations of motion for the throwing of this rock. b) how...
*Thursday, April 24, 2014 at 10:19pm*

**math**

Five athletes are chosen to represent their sports at the school pep rally. Two girls and three boys are selected to walk into the gymnasium. If a girl must enter first and the other girl must be the last one to enter, how many different ways can the athletes enter the gym?
*Thursday, April 24, 2014 at 7:01pm*

**Math**

A specialty cooking oil is packaged in a bottle that is a triangular prism. The base of the bottle is 2.2 in. Wide and 2.4 in. High; the bottle is 6 in. Tall. The glass is 0.2 in. Thick. What is the interior volume of the bottle? Thank you
*Thursday, April 24, 2014 at 3:42pm*

**Language HELP **

Proofreading a Parapgraph for Subject-Verb Agreement, Help with the errors: 1.Oridnary houses or a public building sometimes present problems for people with disabilities. 2. For example, a person using a wheelchair or crutches often have difficulty maneuvering in narrow halls...
*Thursday, April 24, 2014 at 1:25am*

**Statistics**

Prof. C is studying a population of the elementary school pupils in a school district with data on all its children. Another prof. suggests he calculate a confidence interval to estimate the mean age of the children. Prof C responds that it is not necessary. Explain why Prof. ...
*Wednesday, April 23, 2014 at 11:51pm*

**algebra**

Gabby walks 12 blocks east from school and then 16 blocks south and each block is 50 yards how far is Gabby from school in yards?
*Wednesday, April 23, 2014 at 8:53pm*

**Math **

In the diagram, a building casts a 20-ft shadow and a flagpole casts a 7-ft shadow. If the flagpole is 12 ft tall, how high is the building? Round to the nearest tenth.
*Wednesday, April 23, 2014 at 5:10pm*

**physics**

Gamma rays (γ-rays) are high-energy photons. In a certain nuclear reaction, a γ-ray of energy 0.306 MeV (million electronvolts) is produced. Compute the frequency of such a photon
*Wednesday, April 23, 2014 at 3:05pm*

**English**

If it snows tomorrow, what will you do? 1. If it snows tomorrow, I will go out with my dog. 2. If it snows tomorrow, I will make a snow man at the back yard. 3. If it snows tomorrow, I will meet my girl friend. 4. If it snows tomorrow, I will do snow fights with my friends. 5....
*Wednesday, April 23, 2014 at 6:19am*

**physics 1**

Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.6 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 10-7 m3) were made from this material, how much would...
*Tuesday, April 22, 2014 at 10:15pm*

**physics**

robin is standing terrified at the end of a diving board, which is high above the water. if robin has a mass of 75 kg and is standing .6m from the board's pivot point, what torque is robin exerting on the board
*Tuesday, April 22, 2014 at 9:17pm*

**math**

Martin is building a square platform in the drama room at school. He knows the side length of the square needed for the platform. Which function can he use to determine F(x), the area in square feet of the platform?
*Tuesday, April 22, 2014 at 6:26pm*

**physics 1**

Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.6 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 10-7 m3) were made from this material, how much would...
*Tuesday, April 22, 2014 at 6:13pm*

**physics**

Gamma rays (γ-rays) are high-energy photons. In a certain nuclear reaction, a γ-ray of energy 0.306 MeV (million electronvolts) is produced. Compute the frequency of such a photon.
*Tuesday, April 22, 2014 at 5:22pm*

**statistics**

We guess, based on historical data, that 30% of graduating high-school seniors in a large city will have completed a first-year calculus course. What's the minimum sample size needed to construct a 95% confidence interval for a proportion with a margin of error of 2.5%?
*Tuesday, April 22, 2014 at 11:56am*

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