1. A 15 kg child sits in a swing that is attached in ropes 1.6 m long . Find the potential energy of the child relative to his lower position when the ropes (a) are horizontal (b) vertical and (c) make 30° with the horizontal. 2. A brick of mass 1.50 kg is placed on top of...
Tuesday, March 8, 2016 by Camz
8th grade science
I'm not sure what's the correct answer: 9)Which of these characteristics can only be attributed to a wave of red light? A)The energy of the wave travels in the same direction as the wave travels. B)The wave travels by vibrating the particles of the medium at a high ...
Monday, March 7, 2016 by Alexis
english, check please :)
Read this excerpt from a speech on women's rights delivered by Elizabeth Cady Stanton on July 19, 1848: We do not propose to petition the legislature to make our husbands just, generous, and courteous, to seat every man at the head of a cradle, and to clothe every woman in...
Monday, March 7, 2016 by anon
Ms. Sue Please Check My Answers!
1. During the early 1800s, what did New England's textile industry and cotton farming in the South have in common? A.) Changes in technology led to increased production in both regions B.) Children worked in the textile industry; slaves of all ages worked in the South C.) ...
Monday, March 7, 2016 by Help??
An object 20cm high is placed 40cm from a lens of focal length 24cm. Calculate: a) The power of the Lens? b) The distance from the lens to the position of the image?
Monday, March 7, 2016 by Joseph
The City Electric System(CES) recently constructed a major transmission line along parts of South Street in the city. The transmission lines are strung between power poles and the hanging lines form a catenary curve. For this Problem we will use the following equation y=(T/w)...
Monday, March 7, 2016 by Jay
17. A survey of 594 students about the sports program at a school finds the following results: 528 students like the program 66 students think the program is inadequate. If a circle graph were made from the data, what would the measure of the central angle be for the group ...
Monday, March 7, 2016 by Aaliyah
histoy please help
Which of the following happened in the S.C during reconstruction? a. The state developed an oil industry ** b. The state stopped cotton production c. The state built an iron industry d. The state rebuilt its railroad system Which of the following was a cause of tremendous ...
Monday, March 7, 2016 by cutie
A high diver is standing on a platform above a pool. Her diving path can be modeled by the function h(t)=-16t^2+8t+12, where h is her height in feet above the water and t is time in seconds. a) How high is the platform (initial height of the diver)? b) After the diver leaves ...
Monday, March 7, 2016 by Kiki
Calculus / Rates of Change
An isosceles triangle has a base that is 1.5 times the height. If the area is increasing at 9cm2/s, how fast is the height increasing when it is 12 cm high? Known: base=1.5H dA/dt=9.0cm2/s h=12cm dh/dt= ? Area for a triangle: LxW/2 After that, I am confused.
Sunday, March 6, 2016 by Jermaine
Is a circuit a bandpass filter only when it's a high pass filter followed by a low pass filter? Or can it ever be a low pass filter and then a high pass filter (cascaded together)? Does the order matter if it's then followed by a gain/amplifier stage?
Saturday, March 5, 2016 by Jennifer
Michele wanted to measure the height of her schools flagpole. She placed a mirror on the ground 48 feet from the flagpole, then walked backwards until she was able to see the top of the pole in the mirror. Her eyes were 5 feet above the ground and she was 12 feet from ...
Saturday, March 5, 2016 by Anonymous
in a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana...
Saturday, March 5, 2016 by jai
A contractor supplied some items to a school. The contractor's bill is shown below. If each amount includes 5% VAT calculate how much the government receives as VAT. Electrical fittings = #52 500.Stationery #84 000 ;sports equipments #262 000;computers #672 000; school ...
Saturday, March 5, 2016 by Frank ch
A contractor supplied some items to a school. The contractor's bill is shown below. If each amount includes 5% VAT calculate how much the government receives as VAT. Electrical fittings = #52 500.
Saturday, March 5, 2016 by Charles
Calculus with Analytical Geometry
1. A bullet is shot upwards with an initial velocity of 1000 ft/sec from a point 20 ft above groand its height above the ground at time t is given by h(t)=-16t^2 + 1000t + 20. How high will the bullet go and how long will it take the bullet to reach the highest point? 2. A ...
Friday, March 4, 2016 by Sherianna
Which of the following is a common challenge that Native Americans in New Mexico face today? A. Alex has diabetes but cannot afford to buy medication to treat it.*** B. Marisol has health insurance that is paid for by her employer. C. Charlie wants to be a doctor but must ...
Friday, March 4, 2016 by Macarena
I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3 6/s Sphere|S.A+4 pi r^2|V=4/3 pi r^3 3/r ...
Friday, March 4, 2016 by Alexia Smith
health check my answers
1. the type of medical professional who makes sure your eyes are healthy and free of disease is a(n) A. nutritionist. B. oncologist. C. ophthalmologist. <My Answer D. pediatrician. 2. groups like girls scouts of america, habitat for humanity, and united way are all types of...
Friday, March 4, 2016 by keykat
From a boat on the bay, the angle of elevation to the top of a cliff is 29°10. If the bottom of the cliff is 1860 feet from the boat, how high is the cliff (to the nearest foot)? Assume that a right triangle is formed.
Friday, March 4, 2016 by jre
Please Check My Answers: 1) How was South Carolina constitution of 1868 different from previous state constitutions? A. Women lost their right to own property. B. Representation was based on population alone. *** C. Countries and districts were organized into parishes. D....
Friday, March 4, 2016 by Blair
4th grade math
The school carnival is divided into sections. The dunk tanks are in 1/10 of the carnival. Games are in 4/10 of the carnival. Student exhibits are in 5/10 of the carnival. what fraction is dunk tanks and games
Friday, March 4, 2016 by Anthony
Which describes a difference between life in Japan and life in the United States? (A) More people in the U.S attend school. (B) Japan's growth is greatly limited by its geographical space. (C) Japanese people must work multiple jobs in order to make ends meet. (D) Many ...
Thursday, March 3, 2016 by Haruhi
1) How was South Carolina constitution of 1868 different from previous state constitutions? A. Women lost their right to own property. B. Representation was based on population alone. **** C. Countries and districts were organized into parishes. D.Education became the ...
Thursday, March 3, 2016 by Bella (pplease check!)
Math, Please check answers
I do not want to fail this, could you please help me with number 1 and 3.D, and then check my other answers? Thank you. 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume ...
Thursday, March 3, 2016 by Alexia Smith
A waterfall is 1260m high. calculate the change in temperature of the quantity of water that falls from the top to the bottom of the waterfall( neglect heat losses to the surrounding) take g to be 10m/s and specific.heat capacity of water to be 4200j/kg/k.
Wednesday, March 2, 2016 by Blue
Two high school students took equivalent language tests, one in German and one in French. The student taking the German test, for which the mean was 66 and the standard deviation was 8, scored an 82, while the student taking the French test, for which the mean was 27 and the ...
Wednesday, March 2, 2016 by Anonymous
In order to gain popularity amongst high school students, Starbucks is creating a special winter promotion on Starbucks. The function below represents the cost of a Starbucks as a function of time (measured in days after December 4th). Piece wise function c(t)= 5; 0<= t <...
Wednesday, March 2, 2016 by dai
Each side of a square classroom is 9 yards long. The school wants to replace the carpet in the classroom with new carpet that costs $88.02 per square yard. How much will the new carpet cost?
Wednesday, March 2, 2016 by Irene
can someone check my answers, 1. How was South Carolina constitution of 1868 different from previous state constitutions? -B Representation was based on population alone. 2. How did Republicans control of South Carolina affect the state? -C. The Republicans increased taxes and...
Wednesday, March 2, 2016 by help mom
I really do not want to fail this project, could anyone please help me understand this and go through step by step with me? Thank you so much. Modern Design magazine is having a contest to design the best ice cube in one of three shapes¡Xa cube, a sphere, or a cylinder. ...
Wednesday, March 2, 2016 by Alexia Smith
At a high school, GPAs are normally distributed with a mean of 2.6 and a standard deviation of 0.5. What percentage of students at the college have a GPA between 2.1 and 3.1?
Tuesday, March 1, 2016 by Maxwell
1) How was South Carolina constitution of 1868 different from previous state constitutions? A. Women lost their right to own property. ** B. Representation was based on population alone. C. Countries and districts were organized into parishes. D.Education became the ...
Tuesday, March 1, 2016 by Ann
1) What statement best describes Yokohama? A) Yokohama is an ancient political center B) Yokohama is a rural farming village C) Yokohama is a large, crowded city D) Yokohama is an important mining town 2) What describes a difference between life in japan and life in the United...
Tuesday, March 1, 2016 by Sammy
HELP PLEASE I DON'T UNDERSTAND AND IT'S AN OVERDUE LESSON PLEASE HELP ASAP!!!!!!!!!!!!! A survey about the student government program at a school finds the following results: 218 students like the program 27 students think the program is unnecessary 245 students plan ...
Tuesday, March 1, 2016 by #FreeGucci
How was the South Carolina constitution of 1868 different from previous state constitutions? A) women lost their right to own property B) representation was based on population alone.******* C) counties and distracts were organized Into parishes. D) education became the ...
Tuesday, March 1, 2016 by Help please
Social Studies CHECK MY ANSWERS
How did Congress react when it discovered Black Codes in the South? A.It enacted stricter Reconstruction plans. B.It created public schooling. C.It increased the number of sharecroppers in the South. *** D.It called for the impeachment of Andrew Johnson. How did sharecropping ...
Tuesday, March 1, 2016 by GOY
How did republican control of south carolina affect the state? A. The Republicans improved relations between freedmen and white Southerns. B. The Republicans kicked out carpetbaggers and scalawags. C. The Republicans increased taxes and spending in order to rebuild after the ...
Tuesday, March 1, 2016 by PLEASE HELP ASAP!
john wants to get his friend, peter, to a height of 2.8 m above the ground to reach an apple in a tree. they connect a swing to a high branch in an adjacent tree. the bottom of the swing, X, is at a height of 1.2 m. peter has s mass of 45 kg. ignore the effects of any ...
Tuesday, March 1, 2016 by xolani rudolph ngovene
A flag pole sits on the front lawn of a school, 6.6 m from the front door. The angle of elevation from the base of the school to the top of the pole is 38°. Determine the height of the flagpole, to the nearest tenth of a metre.
Tuesday, March 1, 2016 by dd
In Bunyan's Pilgrim's Progress you may recall the description of the Man with the Muck-rake, the man who could look no way but downward, with the muck-rake in his hand; who was offered a celestial crown for his muck-rake, but who would neither look up nor regard the ...
Tuesday, March 1, 2016 by Jessie
Personal dimensions of education
A high percentage of student population in the college of health and behavioral sciences planning to obtain an internship in the hospital while completing their degree
Tuesday, March 1, 2016 by Shalanda
A 1.5 kg book is lying on a 0.70 m -high table. You pick it up and place it on a bookshelf 2.0 m above the floor. During this process, how much work does gravity do on the book? -> 1.5 * -9.8 * 1.3 = -19.1 J During this process, how much work does your hand do on the book?
Tuesday, March 1, 2016 by Anonymous
Please check my answers!! 1. A 75 kg. man steps off the end of a diving board, and hits the water at 7.7 m/s. Ignoring air resistance, what was the mans PE (potential energy) right before he stepped off the diving board? I got 2223.375 Joules after Damon helped me...am I right...
Monday, February 29, 2016 by Becca
Please help me with this!! I am really confused about it... 1. A 75 kg. man steps off the end of a diving board, and hits the water at 7.7 m/s. Ignoring air resistance, what was the mans PE (potential energy) right before he stepped off the diving board? *I know that the ...
Monday, February 29, 2016 by Becca
4018 PTS Billymkhoi HIGH SCHOOL MATHEMATICS 10+5 pts At the instant that a cake is removed from the oven, the temperature of the cake is 350°F. After 10 minutes, the cake's temperature is 200°F. If the temperature of the room is 70°F, how much longer will it ...
Sunday, February 28, 2016 by Anonymous
Would it be possible to have a socialist direct democracy? No, in a socialist society only a few high-ranking members of the communist party have political power. No, a direct democracy requires a free market economy which is not socialist. Yes, if everyone voted on economic ...
Sunday, February 28, 2016 by Marshall
history SUE HELP MEEEE
In The Wealth of Nations, Adam Smith mentions that very good grapes could be grown in Scotland. However, growing high quality grapes in Scotland would be about 30 times as expensive as purchasing grapes from foreign countries. Some nations are better than others at producing ...
Sunday, February 28, 2016 by SUUUE and REED HELP ME
Ling lives 2 miles from school. It took him 15 minutes to bike from school to home. The first half of the distance he biked at a speed of 12 mph. What was his speed for the remaining distance? What was his average speed? His speed for remaining distance was___mph and his ...
Sunday, February 28, 2016 by Mother Russia
Julia measured the high temperature in her town for one week. Using the chart below, find the mean absolute deviation for the high temperatures. Be sure to show your work for finding: graph:sunday:50 monday:56 tuesday:52 wednesday:46 thursday:48 friday:42 saturday:38
Saturday, February 27, 2016 by Anon
The line plot below represents the number of letters written to overseas pen pals by the students at Waverly Middle School. Each x represents 10 students. How many students wrote more than 6 and fewer than 20 letters?
Saturday, February 27, 2016 by Anon
1. Which most precisely describes the location of Southwest Asia? (1 point) west of India south of the Arctic Circle north of the equator east of the Mediterranean Sea*** 2. In which way are the legal differences among men and women in Saudi Arabia most apparent? (1 point) in ...
Friday, February 26, 2016 by Help please
Theo made the table below to show the number of middle school students who attended the last football game. If the data were displayed in a circle graph, how many degrees would be in the sector representing the eighth graders? Grades:6,7,8 Number of Students in attendance in ...
Friday, February 26, 2016 by #FreeGucci
1. Grade 7 students were surveyed to determine how many hours a day they spent on various activities. The results are shown in the circle graph below. Find the measure of each central angle in the circle graph. a. Sleeping b. Eating School 25% Sleeping 33% Eating 8% Homework 8...
Friday, February 26, 2016 by #FreeGucci
REPOSTHealth PLEASE CHECK ANSWERS
1. According to the National Clearing House for Alcohol and Drug Information (NCADI), most children under the age of _____ , who do not participate in drug and alcohol abuse, is virtually certain to never do so. 20 21**** 23 19 2. The average age when youth first try alcohol ...
Friday, February 26, 2016 by GOY
Urgent! PLZZ HHEELLPP!!
8. Which answer best describes a main benefit of the Transcontinental Railroad? A.) It proved to the world that the United States was capable of great feats of engineering B.) It created safe, high-paying jobs for immigrants who wanted to work building the railroad C.) It ...
Friday, February 26, 2016 by TESSA
the high temp today was 62 degrees. when nighttime comes, the temp will drop 40 degrees. by 4 am the temp will drop an additional 40 degrees. what is the temp at 4 am?
Thursday, February 25, 2016 by k
4.)Which answer best describes how the cotton gin changed cotton farming A.)The cotton gin caused cotton prices to drop because it could be harvested so easily. B.)The cotton gin added to the already high cost of producing cotton, and lowered demand. C.)The cotton gin made it ...
Thursday, February 25, 2016 by #FreeGucci
1.)Who increased communication throughout the United States by inventing the telegraph? A.)Elijah McCoy B.)Samuel Morse*** C.)Isaac Singer D.)Eli Whitney 2.)Which of these 19th century inventions made the production of clothing more efficient? A.)Cotton gin*** B.)Sewing ...
Thursday, February 25, 2016 by #FreeGucci
Callie surveyed 40 students at her school to see how many have dogs and/or cats. She found that 40% of students who have dogs, don't have cats complete the following table. --- 7 ---- who have cats,have dogs, don't have dogs, total. --- 8 ---- don't have cats, have...
Thursday, February 25, 2016 by Peyton
A hose lying on the floor shoots a stream of water upward of an angle of 35 degrees with the horizontal. How high up will strike a building 7 m away if the nozzle velocity is 25m/s
Thursday, February 25, 2016 by Francis Gabriel
a ball is rolled off the edge of a dining table 1.5 m high with a horizontal velocity of 2.2 m/s with what velocity does it strike the ground? How far from the edge of the table did it land on the floor?
Thursday, February 25, 2016 by Kyla
A 25 meter ladder is leaned against a tall building. If the ladder makes a 30 degree angle with the ground, how high up on the building (in meters) does the ladder fall?
Wednesday, February 24, 2016 by Courtney
5 students go to school one of which is known to be late; in fact he is late 22% of the time. What is the probability that he will not be late for school.
Wednesday, February 24, 2016 by Sam
The planning committee for the upcoming school play Miss-terious at LMSA asked the mathematics classes to give them some estimates about income that could be expected at different ticket price levels. The class did some market research to see what students would be...
Wednesday, February 24, 2016 by James
A coconut thrown horizontally at 20 m/s from the top of a hill 63 m high. How far from the base of the hill does the coconut hit the ground? Select one: a. 42 m b. 13 m c. 66 m d. 72 m
Wednesday, February 24, 2016 by ray
Which answer best describes a main benefit of the Transcontinental Railroad? A.)It proved to the world that the United States was capable of great feats of engineering. B.)It created safe, high-paying jobs for immigrants who wanted to work building the railroad. C.)It created ...
Wednesday, February 24, 2016 by #FreeGucci
strouds burg high school
write a program that would prompt the user to enter an indefinite number of sales per day. display the total and average sales and display if the total sales is lower than $500 display "no profit" other display "profit was made
Wednesday, February 24, 2016 by kevin perez
A car (1100kg) skids up a hill inclined at 6 degrees. Its initial speed is 20m/s and skids 50m before stopping. When it stops, how high is it above where it started? How much potential energy did it gain? How much energy was lost to friction? What is the force of friction (...
Tuesday, February 23, 2016 by Mary-Lynn
PHYSICS ASAP PLEASE
A pellet (20g) is launched horizontally off a cliff (20m high) from a spring-loaded gun. The spring has constan k=1800 N/m and is compressed 0.10m before launch. How much kinetic energy does the pellet have just before it hits the ground? How fast will the pellet be going just...
Tuesday, February 23, 2016 by Daniel
A student sells tickets to a school play . Adults ticket cost $8 each , and children tickets cost $5 each. The student sells a total of 12 tickets and collects a total of $72 from the ticket sales. How many adults tickets does the student sell?
Tuesday, February 23, 2016 by Fabian Heras
At a school of 1400 students, 800 are currently enrolled in English, 740 are enrolled in mathematics and 325 are enrolled in both subjects. How many students are enrolled neither English nor Mathematics? I got 650 is this right?
Tuesday, February 23, 2016 by Rose
A pellet (20g) is launched horizontally off a cliff (20m high) from a spring-loaded gun. The spring has constant k= 1800 N/m and is compressed 0.10m before launch. How much energy is stored in the spring before launch? If all that energy is transferred to the pellet, how fast ...
Tuesday, February 23, 2016 by Danielle
An observer (O) is located 660 feet from a tree (T). The observer notices a hawk (H) flying at a 35° angle of elevation from his line of sight. How high is the hawk flying over the tree? tan 35= h/660 0.70020753821= h/660 0.70020753821 * 660= h 462.1369752186= h h= 462.14 ...
Tuesday, February 23, 2016 by Jessie
Hi I would like for my answers to be checked for these two questions (Note: I'm not sure if the 2nd one is correct): 1. Several school-related words are based on which sign? a. book b. learn c. school d. study My Answer: book 2. How do you change a statement in American ...
Tuesday, February 23, 2016 by Jazmine
A friend brought 2 boxes of pencils and 8 notebooks to school and it cost $11. He went back and spent $11.25 on 3 boxes of pencils and 5 notebooks. How much would 7 notebooks cost?
Tuesday, February 23, 2016 by Anonymous
I am trying to help my grandson with his math homework. When I went to school we never learned this and I am at a loss. The question is: Create an equivalent expression at includes at least one parenthesis so that the value of the expression is 144. The expression is 4+5x17-3 ...
Tuesday, February 23, 2016 by Patricia
The Jackson High School gymnastics team sells calendars for their annual fundraiser. The function rule below describes the amount of money the team can raise, where y is the total amount in dollars, and x is the number of calendars sold. y x = + 3 28 Use the function rule to ...
Tuesday, February 23, 2016 by crissy
Why is the equilibrium wage higher for doctors than for convenience store clerks? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A. The demand for convenience store clerks is equal to the demand for doctors. B. Supply of doctors is relatively low, and the demand is relatively high...
Tuesday, February 23, 2016 by Hazel