Friday
November 27, 2015

# Homework Help: High School

Physics
Sam, whose mass is 73.0kg , takes off down a 50.0m high, 12.0∘ slope on his jet-powered skis. The skis have a thrust of 210N . Sam's speed at the bottom is 45.0m/s . What is the coefficient of kinetic friction of his skis on the snow?
Tuesday, October 14, 2014 by jrow

math
there are 40 students at Bali high who plays stringed instruments. of these, 1/4 play viola, 1/5 play cello, and the rest play violin. how many students play violin?
Monday, October 13, 2014 by Addison

statistics
Employees at Evergreen Manufacturing company have annual salaries ranging from a low $12,500 to a high of 92,000. Assuming that you want to construct a frequency table with eight classes, find the upper and lower limits of the first class. How do I work the problem? Please? Monday, October 13, 2014 by Charles Winslow chemistry/toxicology/instrumental analysis A standard curve was produced using absorbance values of prepared standards obtained by UV spectrophotometry. The standards were made using concentrated hydrochloric acid as opposed to the 1N HCl that the lab manual says should be used. Because of this my absorbance values are... Monday, October 13, 2014 by Anonymous Science Physics The Hoover Dam is 726 ft high. Find the potential energy of 1.00 million ft3 of water at the top of the dam.(1 ft3 of water weighs 62.4 lb.) Monday, October 13, 2014 by Jay Physics Spiderman is standing on the edge of a rooftop 100m above a swimming pool. He decides to jump in to cool off, so he springs out at a velocity of 30 m/s at an angle of 35 degrees above the horizontal. The near edge pool is located 127 m from the base of the building. It is a ... Monday, October 13, 2014 by Jamie physics a cat chases a mouse across a 0.55 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 2.7 m from the edge of the table. The acceleration of gravity is 9.81 m/s. what was the cats speed when it slid off the table? Monday, October 13, 2014 by Sydnee Quantitative Analysis The students at Littlewood Regional High School cut an average of 3.3 classes per week. A random sample of 117 seniors averages 3.8 cuts per week, with a standard deviation of 0.53. Are seniors significantly different from the student body as a whole? Monday, October 13, 2014 by euneca Physics High-speed stroboscopic photographs show that the head of a golf club of mass 231g is traveling at 59.0m/s just before it strikes a 47.1g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 44.3m/s. Calculate the speed of the golf ... Monday, October 13, 2014 by zhang135 Physics - Spring Gun A toy gun uses a spring to shoot a ball with a mass of 5.0 g. The spring is “loaded” by compressing it 5.0 cm and has a spring constant of 288 N/m. The end of the spring is at the end of the gun (the ball does not travel any distance inside the gun after the spring) ... Monday, October 13, 2014 by Sam Art In the picture called Sketchbook page with Figures by Claude-Joseph Vernet. In these figure drawings, the human body is how many heads high? a.6 b.4 c.8 d.9 Is the answer C? Monday, October 13, 2014 by smile English What is the correct way to make this sentence parallel?l According to some economists, neither high unemployment nor large deficits will keep the economy from rebounding. Monday, October 13, 2014 by Emily needs help with English Homework vp manthata secondary school A cylinder has a volume of 42 cm2 and a height of 5 cm calculate the radius of this cylinder Monday, October 13, 2014 by muntha John physics Jordan throws a golfball straight up from the top of a building 50 meters high. The initial speed of the golfball is 20 m/s and it just misses the edge of the roof when it eventually falls. Neglecting air resistance, find the velocity of the golfball just at the instant it ... Sunday, October 12, 2014 by Ellie physics A ball is rolling on a table and leaves the end side of the table with a velocity of 1.5 m/s. The table is 0.70 m high and the ball has a mass of 0.850 kg. What's the speed of the ball when it hits the ground? What equation should I use? Sunday, October 12, 2014 by Richard Calculus Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 6 ft high? (Round your ... Sunday, October 12, 2014 by Breauna college intermediate In a group of 200 high school students, 36 are taking biology, 52 are taking Spanish, and 126 are taking neither biology nor Spanish. If one of these 200 students is to be chosen at random, what is the probability that the student chosen is taking biology but not Spanish? Sunday, October 12, 2014 by Darline engineering science N4 A steel block is resting on a Flat plank 6m long ,and how high can one end of a plank be lifted For the block to start to move,if the coeficient of friction is 0.3 Sunday, October 12, 2014 by mack Science Assume that a parcel of air is forced to rise up and over a 6000-foot high mountain (shown below). The Initial temperature of the parcel at sea level is 76.5 F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5 F/1000' and the SAR is 3.3 F... Sunday, October 12, 2014 by Itzel Science Assume that a parcel of air is forcd to rise up and over a 6000 foot high mountain.The initial temp of the parcel at sea level is 76.5 F, and the LCL of the parcel is 3000 feet. The DAR is 5.5 * F/1000m and the SAR is 3.3*c/1000m. Assume that condensation begins at 100% ... Sunday, October 12, 2014 by Itzel physics An 80 kg skateboarder going 10 m / s is launched nearly vertically off a ramp as shown. Approximately how high does he go? Saturday, October 11, 2014 by brian Help 1. In addition to decreasing the amount of fat in a dish, salsa can also increase the amount of A. calories and cholesterol. B. vitamin C and fiber. C. sodium and cholesterol. D. calcium and phosphorus. B? 2. If an outdoor runner develops a headache, feels tired, and has an ... Saturday, October 11, 2014 by Sarah Dav public school Alcohols are weaker acids then water,why ? Friday, October 10, 2014 by Bharat Quantitative Reasoning (math) A round silo is 60 ft tall and has a 15 ft radius. About high would a load of 32,000 cubed feet fill the silo to? Do I start with pie*radius squared? Friday, October 10, 2014 by Heather Physics Homework Help 1.) Auston’s racecar has a speed of 80 m/s when Auston releases a drag parachute. If the parachute causes a deceleration of -4 m/s2, how far will the car travel before it stops? 2.) Jordan throws a golfball straight up from the top of a building 50 meters high. The ... Friday, October 10, 2014 by Tori Petit High School Pure maths,Economic,Business study Friday, October 10, 2014 by Lehlohonolo Physics A toy gun uses a spring to shoot a ball with a mass of 5.0 g. The spring is “loaded” by compressing it 5.0 cm and has a spring constant of 288 N/m. The end of the spring is at the end of the gun (the ball does not travel any distance inside the gun after the spring) ... Friday, October 10, 2014 by John Physics A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant. What is the ... Friday, October 10, 2014 by Haley Algebra Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade ... Thursday, October 9, 2014 by Anonymous physics A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant. -What is the ... Thursday, October 9, 2014 by Mariah Physics A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant. 1)What is the ... Thursday, October 9, 2014 by Hayley College question I'm a high school senior and I'm planning on applying to SBU. I have a 4.0 gpa, a 1690 on the SAT(am going to retake), a 24 on the ACT, took 3 AP classes and am currently taking 2 more, part of National Honor Society, in the top 5% of my school, have an advanced ... Thursday, October 9, 2014 by Jess coolkid1234567890 Purple Blue elementary school is 187 miles from washington dc. According to google maps it should take about 3 hours and 5miutes to get there. What is our speed. Please tell me how you did it and the answer. Thank you Thursday, October 9, 2014 by alexander science if the trend in the graph continues through the summer, what would you expect the average high temperature in Louisville, Kentucky, to be in august? A. 66 degrees F B. 83 degrees F C. 103 degrees F D. 125 degrees F please help! Thursday, October 9, 2014 by shay Physics The battleship Massachusetts' 16" guns could fire a 1-ton shell with an initial velocity of 800m/s. If it fired its guns at an angle of 45 degrees above horizontal, how high and how far would the shells travel? I'm pretty sure that I need to use the Pythagorean ... Thursday, October 9, 2014 by Devynn Austin physics a high jumper approaches the takeoff point at a speed of 7.20 m/s. Assuming that only this speed determines the height to which he can rise, find the maximum height at which the jumper can clear the bar. Thursday, October 9, 2014 by Anonymous math Mr. Winsett and Ms. Phelps are having a back to school party. Mr. winsett brought 48 hot wings and mrs. phelps brought 18 cans of soda. what is the greatest amount of people that can come and share the food equally with no left overs? Thursday, October 9, 2014 by Anonymous math The school colors are blue and white. Elizabeth has 84 blue balloons and 96 white balloons. How many balloon bouquets can she make if she wants to haVe the same number of each color in each bouquet and use all balloons? Wednesday, October 8, 2014 by jenna Math A school hall has 30 rows of seats. Each row has 28 seats.How many seats are there. please show work out. Wednesday, October 8, 2014 by Jay Math A school has 30 rows of seats. Each row has 28 seats. How many seats are there? Wednesday, October 8, 2014 by Tracey Vocabulary Double Check Please Choose the letter of the best ANTONYM of the word in bold faced type.bold will be in parentheses. 1) their (patronage of) the arts A.support for B. opposition to C. advertisement of D. festival of E. interest in... i think its b 2) to (fraternize) with the enemies A.trade B.... Wednesday, October 8, 2014 by Anonymous :D math The probability that Shania is on time for school is 1/2. Find the probability that Shania arrives on time for school for the next 5 days. Express your answer as a percent, to the nearest tenth of a percent. A. 50% B. 15.6% C. 11.4% D. 3.1% I feel like its obvious but is it D??? Wednesday, October 8, 2014 by LovelyCaity science what is the centeraltheme of the ' As Cheap as Coal" portion in Section 8 . 1 of your text. (Point: 1 ) The cost of renewable energy is too high for massive adoption with U. S. The cost of renewable energy is currently about the same or less than traditional coal ... Wednesday, October 8, 2014 by willie jackson Literature Which of these statements includes details about setting? A. A new student in school wants desperately to make friends. B. You can get satisfaction from trying, even if you do not succeed. C. The Great Depression had put half of the town out of work. D. Nobody has seen the ... Wednesday, October 8, 2014 by Alexa Math-trigonometry Please help me with the steps !i don't understand this. The working arm of a tower crane is 192m high and has a length of 71.6 m. Suppose the hook reaches the ground and moves along the arm of the trolley, a) determine max distance from hook to operator when trolley is ... Wednesday, October 8, 2014 by Cherie algebra 2 Graph the system of constraints and find the value of x and y that maximize the objective function. Constraints {x >= 0 y >= 0 y <= 3 y <= -x+5} Objective Function C=-5x+3y a) 0,0 b) 2,3 c) 5,0 d) 0,3 I am a mom going crazy. I did horrible in math in school. ... Tuesday, October 7, 2014 by Kandy Algebra During a food drive, a local middle school collected 8,982 canned food items. Each of the 28 classrooms that participated in the drive donated about the same number of items. Estimate the number of items each classroom donated. Please help answer thanks Tuesday, October 7, 2014 by Ms. Liz physics George, a cliff diver, begins running 3.15 m away from the edge of a 33.3 m high cliff, if he accelerate at a constant rate of 0.76 m/s2 until he runs horizontally off the cliff, then how far away from the base will he hit the water? m Tuesday, October 7, 2014 by Anonymous Math Luke walks 1 3/4 miles each way to school. Tuesday before he realized he left his lunch at home and had to go back to get his lunch. How many miles did luke walk on wednesday to and from school? A: 3 1/2 B: 4 C: 4 1/2 D: 2 3/4 I dont understand tis one. what do i do to solve ... Tuesday, October 7, 2014 by Jules Math For this problem, a person standing on the edge of a cliff throws a rock directly upward. it is observed that 2 secs later the rock is at its maximum height (in feet) and that 5 secs after that (meaning 7 seconds after being thrown) the rock hits the ground at the base of the ... Tuesday, October 7, 2014 by Leah Physics Help Fast Please :) Question 2.2. A book is given a sudden push to make it slide along a desktop. If the initial speed of the slide is doubled, by what factor is the distance that the book slides changed? (Points : 1) 0.5 0.25 2.0 4.0 Question 3.3. A 720 kg roller-coaster car starts off from ... Tuesday, October 7, 2014 by GG Math Eleanor and Max used two rectangular wooden boards to make a set for the school play. 1 board was 6 ft long, the other was 5 1/2 ft long. The 2 boards had equal widths. The total area of the set was 60 3/8 square ft. What was the width? Tuesday, October 7, 2014 by Henry Business A key to the student’s ability to apply strategies so that school requirements, assignments, and exams are met in a timely fashion is Monday, October 6, 2014 by Erene physics A home run is hit such a way that the baseball just clears a wall 26 m high located 118 m from home plate. The ball is hit at an angle of 37 ◦ to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1 m above the ground. What is the ... Monday, October 6, 2014 by natalie p.e When consuming fats, the healthiest choice is foods high in A. Saturated fats B. Unsaturated fats C. Trans Fats D. Cholesterol My answer is B, am I correct? Thanks for the help. Monday, October 6, 2014 by Anonymous business According to the Managerial Grid, which basic style of management has a high concern for people and a low concern for production? A. Country club management B. Authority-obedience management C. Organization man management D. Team management i answered A Monday, October 6, 2014 by MikeP muncie high school Which of the following can be used to determine how much traffic a website is getting? Monday, October 6, 2014 by Anonymous math Riding on a school bus are 20 students in 9th grade, 10 in 10th grade, 9 in 11th grade, and 7 in 12th grade. Approximately what percentage of the students on the bus are in 9th grade? Monday, October 6, 2014 by jenna Timerate problem(calculus) Sand is being dropped at the rate 10 metercube/min onto a conical pile. If the height of the pile is always twice the base radius, at what rate is the increasing when the pile is 8 m high? Monday, October 6, 2014 by Mike Literature What is the meaning of this quote:"The main reason people struggle financially is because they have spent years in school but learn nothing in money. The result is that people learn to work for money but never learn to have money work for them." I know that this is a... Monday, October 6, 2014 by Jezraiyelle Science pplzzz!! Which of the following is true about rocks? Rocks are composed of only one mineral. Rocks do not contain any nonmineral matter. Coal is not considered a true rock. Most rocks are a mixture of minerals. 2. If granite undergoes high temperatures and high pressures within Earth, ... Monday, October 6, 2014 by Anonymous CHEMISTRY A sprinter set a high school record in track and field, running 200.0 m in 21.5s . What is the average speed of the sprinter in kilometers per hour? Monday, October 6, 2014 by R MATH There is a 3-meter tall vertical ladder from the ground to a ramp. The bottom of the ladder is 10 m from the base of the ramp. The distance along the ramp from the top of the ladder to the loading platform is 24 m. How high above the ground is the loading platform? Sunday, October 5, 2014 by TEJAS English Okay, in school we just finished "To Kill A Mockingbird" and we have a sort of questionnaire thing to do. One of the questions is "Who symbolizes the "gray ghost" and why?" I have my suspicions that it is Arthur "Boo" Radley but I would ... Sunday, October 5, 2014 by Darlene Math A conical water tank with vertex down has a radius of 10 feet at the top and is 22 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 14 feet deep? I have tried several times but keep ... Sunday, October 5, 2014 by Sarah Math A conical water tank with vertex down has a radius of 10 feet at the top and is 22 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 14 feet deep? I have tried several times but ... Sunday, October 5, 2014 by Sarah Science help! Compounds with high melting points have _____. covalent bonds metallic bonds ionic bonds no chemical bonds 4. Which of the following is NOT a characteristic of minerals? crystalline structure formed by inorganic processes definite chemical composition either liquid or solid Sunday, October 5, 2014 by Anonymous English Identify the common noun in the sentence Every year Black Middle School host its annual Spring Fling I thought it was year maybe Sunday, October 5, 2014 by Sandy physics Janet Leapverifyar drops from a high dive platform with a horizontal velocity of 2.8 m/s. She lands in the H2O below 2.6 seconds later. a. How high is the platform? b. How far from the base does she land? c. What is her final velocity in the vertical direction? Sunday, October 5, 2014 by Delaney math problem the school cafeteria serves pizza every sixth day and applesauce every eighth day. suppose that pizza and applesauce are both on today's menu. In how many days will they be together on the menu again? Sunday, October 5, 2014 by Anonymous Social Studies What was one thing that the Salzburgers established that the other settlers did not? A. Hospital B. School System C. trading post D. tavern I think C?? Sunday, October 5, 2014 by Amber statistics how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last ... Saturday, October 4, 2014 by nina physics A 74.0kg person is put on an exercise program by a physical therapist, the goal being to burn up 550 food calories in each daily session. Recall that human muscles are about 21.0% in converting the energy they use up into mechanical energy. The exercise program consists of a ... Saturday, October 4, 2014 by dia physics A stunt car driver drives off an h = 6.7 m-high cliff into a lake with a horizontal speed of 14 m/s. The car needs to clear an 8.0 m-long ledge that is 5.0 m below the edge of the cliff. The car successfully misses the ledge on the way down. With what speed does the car hit ... Friday, October 3, 2014 by Issac Physics A 36-kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 185 J from 460 J. How high does she rise during this interval? Neglect air resistance. Friday, October 3, 2014 by Steven Math Mrs. Govin is making cakes for the school bake sale. She needs 2 cups of sugar for every cake she makes. Is the number of cakes Mrs. Govin makes proportional to to the number of cups of sugar? Friday, October 3, 2014 by J.B. Math between were erika is standing to the vertical distance from the kite is 75 meters. how high is the kite in meters a.)125 b.)100 c.)25 d.)15 My answer is c am i correct ? Thursday, October 2, 2014 by Hannah Math the scale drawing of a billboard is 21ft wide and 10.5ft high, what is its scale? Thursday, October 2, 2014 by Anonymous ph A gymnast is swinging on a high bar. The distance between his waist and the bar is 1.15 m, as the drawing shows. At the top of the swing his speed is momentarily zero. Ignoring friction and treating the gymnast as if all of his mass is located at his waist, find his speed at ... Thursday, October 2, 2014 by alika Physics Help Please!!!! 1) A high-speed maglev train is traveling with a changing velocity. what can be said about the forces acting on the train? 2) An automated vehicle in a warehouse is traveling at a constant velocity. what can be said about the forces acting on the vehicle? Wednesday, October 1, 2014 by Tim Health--check my answers 1. A percentile rank represents the percentage of people who scored at or below the test score. True False 2. People who have high resting heart rates usually have high levels of cardiovascular fitness. True False 3. Resting heart rate is usually measured when you awake, ... Wednesday, October 1, 2014 by Anonymous Physics Compressed air is used to fire a 50g ball vertically upward from a 0.60-m-tall tube. The air exerts an upward force of 3.0N on the ball as long as it is in the tube. How high does the ball go above the top of the tube? Wednesday, October 1, 2014 by Dib E.L.A. PLEASE CHECK! Which choice is a sentence fragment? A- Anne looked forward to the trail ride. B- Her horse and gear were all ready to go. C- It poured rain on the morning of the ride, the bad weather continued. D- Canceling the ride due to the bad weather. My choice is D. Which choice is a ... Wednesday, October 1, 2014 by Skye geometry a school playground is the shape of a rectangle 500 ft long and 100 ft wide. If fencing costs$16 per yard, what would it cost to place fencing around the playground
Wednesday, October 1, 2014 by kim

math
students of class XI of a school were motivated to apply for NCC. from each section equal number of students opted for NCC. if there are 3x + 11 sections of class XI and total number of students in all the sections is represented by 6x^3+13x^2+6x+158, then find the number of ...
Wednesday, October 1, 2014 by anurag jk

Physics
A Volkswagen runs straight off a cliff. The Volkswagen is traveling at a speed of 39.0 m/s when it leaves the road. If the cliff is 16.0 m high, how far horizontally does the car travel before it smashes into the ground below?
Wednesday, October 1, 2014 by Maxine

math models
The Sears Tower in Chicago is 1454 feet high. Sketch and find the angle of elevation from a point 750 feet from the base to the top of the tower. Relate your answer to the nearest tenth. a. 62.7º b. 27.3º c. 31.1º d. 58.9º
Tuesday, September 30, 2014 by Chy

world civ.
The standard of living for Anglo-Americans is: low medium average high
Tuesday, September 30, 2014 by Mclovin

math
The greatest recorded temperature ranges in the world are around the "cold pole" in Siberia. Temperatures in Verkhoyansk have varied from -94 degrees Fahrenheit to 98 degrees Fahrenheit. What is the difference between the high and low temperatures in Verkhoyansk?
Monday, September 29, 2014 by KG

History
Britain’s Factory Act of 1833: A. reduced the number of women working in factories. B. reduced the number of children working in factories. C. established an eight hour work day for all workers. D. placed a high tariff on imports in order to increase the profits of ...
Monday, September 29, 2014 by Angela

fnjsal
How many people watch anime in meh school
Monday, September 29, 2014 by Anonymous

math
write a ratio in 3 ways, comparing the first quantity to the second. A week has 5 school days and 2 weekends. Second question about 1 in 4 people swims at least 6 times each year.
Monday, September 29, 2014 by sam

history
For this paragraph: The kings of Spain, Santiago bishops and nobility paid high taxes and they made large donations of palaces, monasteries and lands a powerful Cluniac order enjoying a true religious and economic monopoly in Spain We have to explain what this quote means &...
Monday, September 29, 2014 by Brandi

Physics
joel is running down the newly waxed school corridor and tries to slide across the floor in this rubber shoes. The thick 1.5-cm thick rubber soles each have a cross-sectional area of 0.015m^2 and are sheared with a force of 10,000 N
Monday, September 29, 2014 by Dulce

physics
A 42 kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 250 J from 520 J. How high does she rise during this interval?
Monday, September 29, 2014 by aithusa20

Organic
Which layer is likely to be on the bottom in each case? a. Sodium chloride layer or a layer containing a high-density organic compound dissolved in methylene chloride (d  1.4 g/mL) b. Sodium chloride layer or a layer containing a low-density organic compound dissolved in ...
Monday, September 29, 2014 by chemNerd

math
out of 32 students in a class, 5 said they rode their bikes to school. Based on these results, how many of the 800 students ride their bikes to school?
Sunday, September 28, 2014 by tim

Heath help Plz--5 questions
1. A percentile rank represents the percentage of people who scored at or below the test score. True** False 2. People who have high resting heart rates usually have high levels of cardiovascular fitness. True ** False 3. Resting heart rate is usually measured when you awake, ...
Sunday, September 28, 2014 by Anonymous

physics
A robot probe drops a camera off the rim of a 457 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2. find the time required for the camera to reach the ground. answer in units of s. i dont know if my equation is right: * tfinal= (vinitial + g)(vfinal)
Sunday, September 28, 2014 by Mueller

Physics
A robot probe drops a camera off the rim of a 429 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2. What equation will be appropriate to find velocity?
Sunday, September 28, 2014 by Elizabeth

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