Saturday

July 4, 2015

July 4, 2015

**science**

The position-time graph for a tennis ball thrown vertically upwards from the second floor of a school building is shown below.ignore all effects of air friction.The height of the second floor is 6,5m.The ball rises 0,9 m from the point of projection before it starts to fall to...
*Sunday, February 22, 2015 by ntando*

**Physics**

A 65.0 kg skier with an initial speed of 11.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top, given that the coefficient of friction between her skis and the snow is 0.0800.
*Sunday, February 22, 2015 by Andrew*

**Science**

Directions: How high could your animal jump if it has an initial velocity of 20m/s? Average Mass of Animal: (800kg) (1100lbs) Jupitar’s Mass: 1.898E27 kg (317.8 mass)
*Sunday, February 22, 2015 by Steffy*

**science**

A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g=10m/s2)
*Sunday, February 22, 2015 by Anonymous*

**Statistics**

A) Identify the question, population, and sample. b) Discuss any potential bias or lurking variables that may affect the results.? c) Write about the extent to which we can generalize the findings to all people who use cell phones. Stewart Fist reported the results of an ...
*Saturday, February 21, 2015 by Tamcia *

**Business math**

The clarkdell school system has three schools. School #1 has 500 students School #2 has 600 students School #3 has 400 students What part of a $15,000 allocation will go to school #2? 15,000 divide by 3= $5,000 Will you check my answer?
*Saturday, February 21, 2015 by Devon*

**English**

Can someone read my eight sentence paragraph. A high school diploma is very important to me. With a high school diploma I can show my children that your never to old to go back to school. Which will set a good example for my children to show them they need to follow their ...
*Saturday, February 21, 2015 by Rebecca*

**physics**

A ball is thrown straight up from the ground at 10m/s, and simultaneously a ball is thrown straight down a 10m-high ledge at 10m/s. At what height do the two balls pass?
*Saturday, February 21, 2015 by vera*

**Urgent maths homework help**

At a boarding school, in the evening, 9 students always take walks in groups of 3. How can the groups be arranged so that each person walks in a group with every other person exactly once in 4 days? I would like to know whether there is a trick to these type of questions. My ...
*Saturday, February 21, 2015 by paul*

**Maths**

At a boarding school, in the evening, 9 students always take walks in groups of 3. How can the groups be arranged so that each person walks in a group with every other person exactly once in 4 days? I would like to know whether there is a trick to these type of questions. My ...
*Friday, February 20, 2015 by Yasmin*

**Math**

A roll of paper towels is 10 inches high and 2.5 inches in diameter. How many full squares inches of paper towel can fit on the roll in 15 rotation? * all I need is a formula of this question. Do I use lateral surface area formula or total surface area formula
*Friday, February 20, 2015 by Daisy*

**Socials**

Note: My questions are below mostly in brackets and at the very end! I have to do an immigration diary assignment and I am to portray a young 12 year old girl(any English name suggestions?) from a city in England(what is a realistic city during that time?) who is migrating to ...
*Friday, February 20, 2015 by Lily*

**History**

Social Reform 1) New harmony, Indiana, was an example of a... :Revival. :Frontier camp. :Utopia.*** :College. 2) Who was the leader of education who lengthened the school year to six months? :Lyman Beecher. :Horace Mann.*** :Charles Finney. :Dorothea Dix. 3) Margaret Fuller, ...
*Friday, February 20, 2015 by TheLOUDEST_0430*

**chemistry**

I have questions but I don't understand this passage. Could you give a summery? Here are the question 1. One problem the researchers faced was an uncertainty about whether the signals observed in certain mass spectrometry data were, in fact, due to lead isotopes. Explain ...
*Friday, February 20, 2015 by Morgan *

**College Alegebra**

a 23 foot ladder is placed against a vertical wall of a building with the bottom of the ladder standing on level ground 18 feet from the base. how high up the wall does the ladder reach?
*Friday, February 20, 2015 by k*

**Social Studies**

8.How did Islam mainly spread throughout the region? by imperial command through military strength **** via trade because of religious decree 9.Which of the following had the most impact on the drawing of modern borders in Southwest Asia? British mandate **** tribal ...
*Friday, February 20, 2015 by Please Check Answers*

**Math**

A sample of 50 children had one child that is left-handed. If there are 750 children in a school, how many should be left-handed?
*Friday, February 20, 2015 by Alexgc*

**Math**

In the formula d = rt, the time t varies inversely with the rate r. A student running at 5 miles per hour runs one lap around the school campus in 8 minutes. If a second student takes 10 minutes to run one lap around the school, how fast is she running?
*Thursday, February 19, 2015 by PLEASE HELP I NEED ANSWERS NOW*

** Math**

In the formula d = rt, the time t varies inversely with the rate r. A student running at 5 miles per hour runs one lap around the school campus in 8 minutes. If a second student takes 10 minutes to run one lap around the school, how fast is she running?
*Thursday, February 19, 2015 by Brooke*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...
*Thursday, February 19, 2015 by kat*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...
*Thursday, February 19, 2015 by kat*

**Physics**

Hi, just need a little help with this physics question please. A cylindrical tank of water is located 68m deep in water. An air lock at the bottome of the tank allows access. The sailor must wait while the air pressure in the lock is increased until it equals the water ...
*Thursday, February 19, 2015 by Sally*

**physics**

A football is thrown with an initial upward velocity component of 13.5m/s and a horizontal velocity component of 16.5m/s How much time is required for the football to reach the highest point in its trajectory? How high does it get above the ground?How much time after it is ...
*Wednesday, February 18, 2015 by luis*

**Social Studies**

1. Which of the following helped to increase the populations of northeastern cities? (1 point) more diversity successful cotton crops growth of factories and trade building of the Erie Canal 2. A boundary was set between Canada and the United States as a result of (1 point) ...
*Wednesday, February 18, 2015 by JayyVonMonroe*

**Math**

Peter wants to hang his paintings on a wall that is 2 1/2 meters high and 5 1/2 meters wide. He hangs four paintings, each of which is 1 1/4 meters high and 2/3 meter wide. what area of the wall is NOT covered by paintings?
*Wednesday, February 18, 2015 by Derrianna*

**Social Studies**

15 In which type of city government does the mayor have the power to veto legislation A. Council manager B. City consolidated C. Weak mayor council D. Strong mayor council******* 16 Which is not true of both city and county government in Georgia A. Both can collect taxes...
*Wednesday, February 18, 2015 by BUBBLES*

**Social Studies**

Please I need help on 2nd set of questions. Thank you in advance! 8 Which behavior is an example of a delinquent behavior according to Georgia’s juvenile justice system A.Stealing from a store***** B.Refusing to go to school C.Disobeying ones parents D.Running away from ...
*Wednesday, February 18, 2015 by BUBBLES*

**algebra**

if a school has 24 teachers and 480 students, what is the ratio of teachers to students?
*Tuesday, February 17, 2015 by stephanie*

**English**

Would these be good examples of hopelessness, hope, and realism in A raisin in the Sun 1. hopelessness Mama :Well whether they drinks it or not ain't none of my business. But whether I go into business selling it to 'em is, and I don't want that on my ledger this ...
*Tuesday, February 17, 2015 by Amy*

**Physics 202**

A rail gun uses electromagnetic forces to accelerate a projectile to very high velocities. The basic mechanism of acceleration is relatively simple and can be illustrated in the following example. A metal rod of mass 10.0g and electrical resistance 0.100Ω rests on ...
*Tuesday, February 17, 2015 by Tiffany*

**College Algebra**

Flight of a Ball If a ball is thrown upward at 96 feet per second from the top of a building that is 100 feet high, the height of the ball can be modeled by S(t)=100 + 96t -16t^2 feet, where t is the number of seconds after the ball is thrown. How long after the ball is thrown...
*Tuesday, February 17, 2015 by Bridgett*

**physics**

43. A block of mass 2.00 kg rests on a ramp tilted at 25.0°. Coefficients of friction for the block/ramp: μs = 0.300, μk = 0.100. A string passing over a high quality pulley connects the block with a bucket as shown below. The bucket contains sand but a hole is ...
*Tuesday, February 17, 2015 by Devin*

**math**

Gary measured the middle school and made a scale drawing. He used the scale 1 inch = 5 feet. The gym is 85 feet long in real life. How long is the gym in the drawing?
*Tuesday, February 17, 2015 by Anonymous*

**physics**

An object 5 cm high is placed at a distance of 60 cm in front of a concane mirror of focal length10cm .Find the position and size of image
*Tuesday, February 17, 2015 by sumit*

**Science**

Getting Oxygen 1) Name the components of the respiratory system in the order incoming air would encounter them during breathing. :Trachea,pharynx,larynx,alveoli,bronchi. :Bronchi,larynx,alveoli,trachea,pharynx. :Larynx,trachea,bronchi,pharynx,alveoli. :...
*Tuesday, February 17, 2015 by TheLOUDEST_0430*

**english check answers **

Over the past ten years more than two dozen athletes have died from the medical condition known as heatstroke. Heatstroke occurs when the body’s internal temperature becomes so elevated that its cooling system begins shutting down. Who is most at risk? Surprisingly, it is...
*Tuesday, February 17, 2015 by Robb4301*

**tec**

What is an AUP? the abbreviation for the school administrator in an online education environment a document outlining what is acceptable behavior when using the Internet for schoolwork a policy outlining the proper formatting to use in Microsoft® Office documents for ...
*Tuesday, February 17, 2015 by help?thanks*

**Algebra 1**

The attendances at a high school basketball games seems to be affected by the success of the team. Look at the table and decide what function would represent the data shown. attendance 150 200 250 300 350 wins 2 4 6 8 10 a) a=2(3)^g b) a=-25g+100 c) a=25g^2+100 d) a=-25g^2+100
*Monday, February 16, 2015 by Steve*

**physical science**

How high is a building when an anvil takes 4 seconds to hit the ground? How long will it take a piano to hit the ground when dropped off a building 103 meters high?
*Sunday, February 15, 2015 by laura*

**PED 212**

What are some pros and cons in relevance within a school environment in organized sports?
*Sunday, February 15, 2015 by Monica*

**maths **

The top of a T.V tower casts a shadow of 35 metres long when the angle of elevation of the sun 57°40'.How high is the top of the tower?
*Sunday, February 15, 2015 by Anonymous*

**science**

a ball is dropped fron a building which is 50 metres high.calculate the ball's velocity just before it hits the ground.ignore air resistance
*Sunday, February 15, 2015 by judith*

**Math**

So far john has run 1/4 of the way to school and walked 3/8 of the way.What fraction of the distance to school does john have left?
*Saturday, February 14, 2015 by Anonymous*

**physics**

A batted baseball leaves the bat at an angle of 33.0∘ above the horizontal and is caught by an outfielder 380ft from home plate at the same height from which it left the bat. 1. What was the initial speed of the ball? 2. How high does the ball rise above the point where ...
*Saturday, February 14, 2015 by chibest *

**Physics**

Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape. Bob is a pitcher, and knows that the fastest he can ...
*Friday, February 13, 2015 by Breauna*

**Constitutional Law**

If a professor at a public school imposes a policy barring students from wearing all types of hats in the classroom, this would most appropriately be labeled as a: A. regulation of protected speech. B. ban on protected speech. C. content-based limitation on political speech. D...
*Friday, February 13, 2015 by Amy*

**physics**

Stone dropped from top of a tower 100m high. At same instant another stone is thrown vertically from base of the tower with a velocity of 25m/s. When and where will the two stones meet? Given g =10 m/s^2
*Friday, February 13, 2015 by Nikhil*

**physics**

Stone dropped from top of a tower 100m high. At same instant another stone is thrown vertically from base of the tower with a velocity of 25m/s. When and where will the two stones meet? Given g =10 m/s^2
*Friday, February 13, 2015 by Anonymous*

**physics**

In driving the usual route to school, a student computes his average speed to be 26 km/h. In a hurry to get home that afternoon, he wants to average 30 km/h for the round trip. What would his average speed for the return trip over the same route have to be in order to do this?
*Friday, February 13, 2015 by jyothi*

**physics**

A 3.6 kg rock is initially at rest at the top of a cliﬀ. Assume that the rock falls into the sea at the foot of the cliﬀ and that its kinetic energy is transferred entirely to the water. How high is the cliﬀ if the temperature of 1.1 kg of water is raised ...
*Thursday, February 12, 2015 by Anonymous*

**Algebra 1**

Julia's school is selling tickets to a play. On the first day of ticket sales the school sold 6 adult tickets and 2 student tickets for a total of $40. The school took in $85 on the second day by selling 5 adult tickets and 12 student tickets. What is the price each of one...
*Thursday, February 12, 2015 by Lyric*

**science**

Im doing a poster for school and its about when a candle is alight and I don't under stand it could you please help
*Thursday, February 12, 2015 by skyler*

**Science **

Air, like other gases, flows from a region with ________. A. Lower pressure to a region with higher pressure B. No pressure to a region with high pressure C. Little pressure to a region with high pressure D. Higher pressure to a region with lower pressure
*Thursday, February 12, 2015 by Diana*

** Statistics**

above average warmth extended over the east and southeast on Jan.13, 2005.The days forecasted high temperatures in four cities in the affected area were as follows: Burlington, Vt. 55 degrees F, Durham, N.C. 74 degrees F, Williamsburg, Va. 74 Degrees F., and Augusta Ga., 75 ...
*Thursday, February 12, 2015 by Phyiss*

**geluksdal secondary school**

Explain how you can determine the number of neutrons in an atom
*Thursday, February 12, 2015 by monica*

**AP LIT**

A VALEDICTION FORBIDDING MOURNING by John Donne As virtuous men pass mildly away, And whisper to their souls to go, Whilst some of their sad friends do say, "Now his breath goes," and some say, "No." So let us melt, and make no noise, [5] No tear-floods, ...
*Thursday, February 12, 2015 by Sam Eaton*

**math**

Show how to write and evaluate an expression to represent and solve this problem: Jeff and his friend each text four classmates about a concert. Each classmate then texts four students from another school about the concert. If no one receives the message more than once, how ...
*Wednesday, February 11, 2015 by kyle*

**rubidoux high school**

Susan is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Susan has been adding money. Suppose that x and y are related by the equation = + 30 x 350 y
*Wednesday, February 11, 2015 by jessica mendez*

**english**

write a letter to your friend in another school telling him/her at least three ways you find life in the final year class is different from being in the class
*Wednesday, February 11, 2015 by Max okofo darteh *

**physics**

Guy has to get a piano onto a 2.4 m high platform. He can use a 3.0 m long frictionless ramp or a 4.0 m long frictionless ramp. Which ramp will Guy use if he wants to do the least amount of work? Either ramp as the work done is same in both cases. The shorter ramp will require...
*Tuesday, February 10, 2015 by mathew*

**algebra**

A school has a classroom with a length eight feet less than twice the width. If a group of parents purchased 400 square feet of carpet for the room, what is the approximate length of the room? L=2W-8 L*W=400 (2W-8)W=400 2w^2-8w=400
*Tuesday, February 10, 2015 by Sierra*

**math**

Show how to write and evaluate an expression to represent and solve this problem: Jeff and his friend each text four classmates about a concert. Each classmate then texts four students from another school about the concert. If no one receives the message more than once, how ...
*Tuesday, February 10, 2015 by kyle*

**Math**

On the moon the acceleration due to gravity is 5 ft/sec2. An astronaut jumps into the air with an initial upward velocity of 8 ft/sec. How high does she/he go? How long is the astronaut off the ground?
*Tuesday, February 10, 2015 by Cole*

**anthrpology**

Is my answer correct. I can't found Confederacies 1.Discuss the differences between bands, tribes, chiefdoms, confederacies, and states. Then indicate what roles kinship and associations play in each of these systems Band: small kin-based group among scavengers. About ...
*Tuesday, February 10, 2015 by jimmy*

**Calculus**

Use a(t)=-32 ft/second squared as the acceleration due to gravity. A ball is thrown vertically upward from the ground with an initial velocity of 96 feet per second. How high will it go?
*Monday, February 9, 2015 by Anonymous*

**algibra**

The number of students in each homeroom class in Jim’s school is shown in the stem-and-leaf plot below. Number of Students in Each Homeroom Class 1 7 8 8 9 9 2 0 2 3 4 5 8 8 8 3 2 3 4 7
*Monday, February 9, 2015 by ok*

**Physics**

Calculate the final speed of a skier who skis down a 70.8 m high hill, if her initial speed is 2.18 m/s
*Monday, February 9, 2015 by Jessy*

**math**

At the first meeting of the chess club, the 10 members decided that everyone in the club should play everyone else one time to determine the best players for the inter-school competitions. How many games had to be played?
*Monday, February 9, 2015 by sandra*

**engineering science n2**

A stone with a mass of 6kg is thrown vertically upwards from the top of a building 35m high with a starting velocity of 20m/s. The time it will take to reach its maximum height
*Monday, February 9, 2015 by mpume*

**English**

An upper-secondary school is a senior high school. Then is a lower-secondary school a junior high school? Where is the expression 'a lower-secondary school' used?
*Sunday, February 8, 2015 by rfvv*

**English **

In a well organized essay, analyze the language and rhetorical devices the narrator uses to convey his attitude toward Hester and toward women in general I felt that my previous thesis was not strong at all and I would like to change it and make it better. Through the use of ...
*Sunday, February 8, 2015 by Amy*

**Math**

There are 750 students in a school. If the number of girls is 120 more than the boys, how many boys are there in the school?
*Sunday, February 8, 2015 by Student*

**math**

Show how to write and evaluate an expression to represent and solve this problem: Jeff and his friend each text four classmates about a concert. Each classmate then texts four students from another school about the concert. If no one receives the message more than once, how ...
*Sunday, February 8, 2015 by kyle*

**statistics**

Suppose we want to estimate the average number of purchases in a given hour in a local convenience store. Using this example describe in your own words how you would go about determining this average through: A.) Drawing a random sample: Drawing a random sample would be the ...
*Sunday, February 8, 2015 by slomo*

**English**

In today's society, many middle class people argue that they cannot build wealth because of wrong choices , over spending, own a car, and rather go to school than work. Ms Sue is this better thesis
*Saturday, February 7, 2015 by antonio*

**chemistry**

White phosphorus (P4) was used for a long time in military incendiary bombs and ordnances. White phosphorus reacts with oxygen in the air and burns at very high temperatures, so it sets things on fire. Calculate the change in enthalpy resulting from a 25.0 pound white ...
*Saturday, February 7, 2015 by danny*

**Science**

a child mass m slides down a slide 5 m high. the child speed at the bottom of the slide is 3 meters per second. what is the percent of mechanical energy the child has at the top of the slide. converted to kinetic energy
*Saturday, February 7, 2015 by Dan*

**Aztec high school**

Math/ terry has a board that is 4 yards long. How much needs to be saw off to make the board 2 feet 8 inchs long?
*Saturday, February 7, 2015 by Lesean Anderson*

**harapan bangsa school**

a 4-m plank rests against a wall 1.8m high so that 1.2m of it projects beyond the wall. find the angle the plank makes with wall.
*Saturday, February 7, 2015 by clarissa*

**chemistry**

A block of metal is 6.88 cm long, 2.03 cm wide, and 1.85 cm high. It has a mass of 215.1 grams. What is the density of this metal. I've tried adding all the cm up and squaring them, dividing them, multiplying but i can't get the answer
*Friday, February 6, 2015 by paige*

**Physics**

Determine the banking angle needed to make a high-speed turn off a highway exit ramp with a radius of 720 m if the vehicle is travelling at 80 km/h. Assume there is no friction.
*Friday, February 6, 2015 by PL*

**Crime and Society**

What do you think best explains high incarceration rates for Blacks compared to their percent of the general population.
*Friday, February 6, 2015 by Anonymous*

**Crime and Society**

What explains the high incarceration rates for Black men?
*Friday, February 6, 2015 by Anonymous*

**Crime and Society**

What explains high incarceration rates for Blacks on death row?
*Friday, February 6, 2015 by Anonymous*

**Trig**

Bob the ranger is atop a fire tower that i son the side of a mountain.The fire tower is 10 meters high and the angle of depression from the top of the tower to the base of the mountain is 48 degrees. The tower creates a 115 degree angle with the mountain. How far up he ...
*Thursday, February 5, 2015 by Jordyn*

**math**

A businessman bought two bags of maize at the same price per bag. he discovered that one bag was of high quality and the other of low quality. On the high quality bag he made a profit by selling at $ 1,040. Whereas on the low quality bag he made a loss by selling at $880. If ...
*Thursday, February 5, 2015 by kudu*

**math/algebra**

A total of 770 tickets were sold for the school play. They were either adult tickets or student tickets. There were 70 more student tickets sold than adult tickets. How many adult tickets were sold?
*Thursday, February 5, 2015 by lisa*

**physics**

A ball is released from a tower at a height of 100 meters toward the roof of another tower that is 25 meters high. The horizontal distance between the two towers is 20 meters. With what horizontal velocity should the ball be imparted so that it lands on the rooftop of the ...
*Thursday, February 5, 2015 by antonio*

**ENGLISH**

According to some economists, neither high unemployment nor large deficits will keep the economy from rebounding.
*Thursday, February 5, 2015 by X*

**Science**

After an avalanche, a huge block of stone slid down a mountain and landed in the middle of the road. People in the nearby town had a very difficult time moving it out of the road. The block of stone is difficult to move because A. It has a high amount of momentum. B. Has ...
*Wednesday, February 4, 2015 by Callie*

**child development part 2**

school age children a.are just bigger preschoolers b.require a classroom like setting for before and after school care c.have needs that are qualitatively different from those of younger children d.spend more time in child care than infants my answer is c
*Wednesday, February 4, 2015 by susue*

**English**

1. The big boy picks on me at school. 2. The big boy harasses me at school. ---------------- Q1: Are both the same in meaning? Q2: What are the parts of speech of both 'picks' and 'on'? Q3:picks on 1) an intransitive verb + a preposition? 2) a transitive verb...
*Tuesday, February 3, 2015 by rfvv*

**Computers**

1. What does the term "fair-use exception" mean? (1 point) to use only material that has never been published the ability to use material made by others for educational purposes an exception to copyright restrictions for images only Educational material is no longer ...
*Tuesday, February 3, 2015 by Andre*

**4th grade math**

There are 12 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty?
*Monday, February 2, 2015 by Ali*

**math**

the track at our school is 440 yards long. it took Maya 10 minutes to jog around the track 4 times. find her speed in miles per hour. I first found out that r=d/t then we converted minutes to hour. we got 24 times around the track
*Monday, February 2, 2015 by E6*

**Physics**

A neighbourhood requires 1.5 x 10^5 w of electricity to power all homes during peak usage times. A step-down transformer is used on the high voltage transmission lines to lower the voltage to 120v for household use. There are 25000 primary coils and 140 secondary coils on the ...
*Monday, February 2, 2015 by Sandara*

**Math**

There are 250 students in a school auditorium for an assembly. 24% of the students are 5th graders. How many 5th graders are in the auditorium?
*Monday, February 2, 2015 by Amy*

**L.A.**

To which sense do the following lines from "Grandma Ling" appeal? and there I faced my five foot height, sturdy legs and feet square forehead, high cheeks, and wide-set eyes A. hearing B.taste C. sight D. smell 2. which word best describes the tone of the following ...
*Sunday, February 1, 2015 by Anonymous *

**4th grade math**

There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty? We added and got 189 then divided by 3. But it doesn't look correct. How do we show the work?
*Sunday, February 1, 2015 by Ali*

**4th grade math**

The school choir has 48 singers with high voices, 53 singers with middle voices, and 39 singers with low voices. the singers stand in 4 equal rows at concerts. How many singers are in each row? How do I show my work for this?
*Sunday, February 1, 2015 by Ali*