Monday
August 3, 2015

Homework Help: High School

Physics please help
He drops a ninja ball device from a height of 10.0m. The mass of the enter device is 190g and the mass of the top (smallest) ball is 2.90g A) calculate the momentum of the device as it hits the ground (ignore air resistance) I know that this answer is 2.66 for sure B) if the ...
Tuesday, April 28, 2015 by Maddie

Math
file:///C:/Users/SCHOOL/Pictures/math.JP​G Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change.*** 4.none of the above Is this right?
Tuesday, April 28, 2015 by Charity

Math
Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change. 4.none of the above file:///C:/Users/SCHOOL/Pictures/math.JP​G HELP ME UNDERSTAND THIS PLEASE??
Tuesday, April 28, 2015 by HELP

Algebra
Jess saved $500 working during the summer. He plans to buy school clothes with his money. He found jeans he liked for $30 per pair, including tax, and shirts for $17, including twice. If he buys exactly twice as many shirts as jeans, how many pairs of jeans can jess buy ...
Tuesday, April 28, 2015 by Kimberly

physics
A mass is attached to a vertical spring, which then goes into oscillation. At the high point of the oscillation, the spring is in the original unstretched equilibrium position it had before the mass was attached; the low point is 8.6cm below this. What is the period of ...
Tuesday, April 28, 2015 by Anonymous

English, pls help
Pls help "About Russell" 27. During "the greatest kickball game ever," Russell (1 point) scores the winning point. leaves with the ball. causes his team to lose. starts an argument, ending the game. 28. When Rita beats Russell at chess, she is amazed that ...
Tuesday, April 28, 2015 by Anny

English, pls help asap
Pls help "About Russell" 27. During "the greatest kickball game ever," Russell (1 point) scores the winning point. leaves with the ball. causes his team to lose. starts an argument, ending the game. 28. When Rita beats Russell at chess, she is amazed that ...
Tuesday, April 28, 2015 by Anny

Math
The cost of a student ticket to the school play is $7. Write an equation that correctly relates the cost, c, for a particular number of student tickets, s, purchased. Identify the independent and dependent variables.
Tuesday, April 28, 2015 by Priscilla

Hallandale high
2. What can be concluded about the female character referred to in these lines? "Make one," said Anthony. "Take her for a walk in the park, or a straw ride, or walk home with her from church Chance! Pshaw!" "You don't know the social mill, dad. [ ...
Tuesday, April 28, 2015 by larry jones

Economics
A business can produce its product in different versions: Version A has a basic design and a lower cost and Version B has an upgraded design and a higher cost of production. The business knows there are different types of customers, “High” demand (H) and “Low&#...
Tuesday, April 28, 2015 by John

math
The volume inside a rectangular storage room is 2,025 cubic feet. The room is 9 feet high. Find the area of the floor.
Tuesday, April 28, 2015 by joey

5th grade (math)
Leslie and Jess were racing at school. Leslie was able to complete the race in 12 1/2 seconds, whereas jess finished in13 1/10 seconds. How much faster did Leslie run? PLs help me!!
Tuesday, April 28, 2015 by ary

Geometry
A school's wrestling mat is a square with 50 ft sides. A circle 28 ft in diameter is painted on the mat. No wrestling is allowed outside the circle. Find the area of the part of the mat that is NOT used for wrestling. Use pie=22/7.
Monday, April 27, 2015 by Andrea

Algebra
At Central High School, the sophomore class has 60 more students than the freshman class. The junior class has 50 fewer than twice the number of students in the freshman class. The senior class is three times as large as the freshman class. If there are a total of 1,424 ...
Monday, April 27, 2015 by Anonymous

History
Which explains why the Compromise of 1850 intensified the argument about slavery? A- People for and against slavery migrated to Western stats to influence laws. B~Free states in the West added more antislavery votes to Congress. C~The equal division of slave and free ...
Monday, April 27, 2015 by Emma

chemistry
Suppose that a student performing this experiment recorded the concentration of NaOH solution as 0.513 M, instead of the correct value of 0.531 M. Assuming there were no other errors, would each of the following experimental results be high, low, or unaffected by the error? ...
Sunday, April 26, 2015 by kales

English
Is this sentence punctuated correctly? At elementary school, my teacher delighted in handing me worksheets crowded with row upon row of three to five digit long division problems.
Sunday, April 26, 2015 by Luke

math
King Arthur II has problems with pronouncing the digit 3. People are afraid of presenting something which includes 3 in it. The solution found is that if any number includes 3 as a digit, the number is divided by 2. This process continues as far as the new numbers include new ...
Sunday, April 26, 2015 by ani

math
A company is designing a juice box. The box is in the shape of a rectangular prism. The base of the box is 6 1/2 inches by 2 1/2 inches, and th box is 4 inches high. If juice fills 90% of the box's volume, find the volume of juice in the box. Thank you!
Sunday, April 26, 2015 by kymy

physics133
1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat gained by the cold body in any system provided...
Saturday, April 25, 2015 by Cali franco

Math
You want to find out what the favorite hot lunch in the school cafeteria is among the high school students. At an assembly for the whole school, you decide to survey all students who are sitting on the end of their rows in the auditorium. What type of survey are you conducting...
Saturday, April 25, 2015 by Steve

PHYSICS answer check
a gun converts 200J of stored energy into kinetic energy of the 0.02kg bullet. a)What is the speed of the bullet as it leaves the gun? b)If the gun is fired straight up, how high will the bullet go? a)200J b)m*g*h= (0.02kg)(10m/s^2)=200J h=100m
Saturday, April 25, 2015 by MJW

physics
Which of the following is the correct unit of k in the equation of a damped harmonic oscillator given as , where b is the damping factor and all the symbols have their usual meaning? 2 If s is distance and t is time, what must be the dimensions of a and b in the equation...
Saturday, April 25, 2015 by Cali franco

trigonometry pls help
Howard is flying a kite and wants to find its angle of elevation. The string on the kite is 32 meters long and the kite is level with the top of a building that he knows is 28 meters high. To the nearest tenth of a degree, find the angle of elevation. Show your work.
Saturday, April 25, 2015 by allexelle

physics 111 "2"
1 A stone thrown from ground level returns to the same level 4 s after. With what speed was the stone thrown? Take 20 m/s 10 m/s 30 m/s 15 m/s 2 What is common to the variation in the range and the height of a projectile? time of flight vertical acceleration horizontal ...
Friday, April 24, 2015 by Cali franco

physics 133
1 Which of the following is the correct unit of k in the equation of a damped harmonic oscillator given as , where b is the damping factor and all the symbols have their usual meaning? 2 If s is distance and t is time, what must be the dimensions of a and b in the equation...
Friday, April 24, 2015 by Cali franco

Social studies
1. Which word best describes modern life for Japanese teenagers such as Asuka? relaxed crowded isolated traditional 2. Tropical storms often hit Japan during the ________. summer winter spring fall 3. Which of Japan's islands has the largest level area? Hokkaido Honshu ...
Friday, April 24, 2015 by Shawn

maths
Frog jumps 3 m high and falls back 2 m. How many jumps does it come out of well.if frog is inside the 40m deep well
Friday, April 24, 2015 by lakshmi

English
WORDS: Averse Detract Disdain Divulge Elation Endow Expulsion Mortified Nullified Ominous ------------- Some people are so (1)averse to living near a nuclear plant that they want the plant’s license to be (2)nullify. They say the plant infringes on every homeowner’s ...
Friday, April 24, 2015 by Sora

English
From the book The Importance of Being Earnest by Oscar Wilde, which sentence from the passage provides the best expression of the theme? A."It's perfectly easy to be cynical. " B. "... once a week is quite enough to dine with one's own relations." C...
Friday, April 24, 2015 by pink

physics
a gun converts 200J of stored energy into kinetic energy of the 0.02kg bullet. What is the speed of the bullet as it leaves the gun? If the gun is fired straight up, how high will the bullet go?
Thursday, April 23, 2015 by JJ

chemistry - kinetics
Understanding the high-temperature behavior of nitrogen oxides is essential for controlling pollution generated in automobile engines. The decomposition of nitric oxide (NO) to N2 and O2 is second order with a rate constant of 0.0796 M−1*s−1 at 737∘C and 0....
Thursday, April 23, 2015 by Kayla

physics
a gun converts 200J of stored energy into kinetic energy of the 0.02kg bullet. What is the speed of the bullet as it leaves the gun? If the gun is fired straight up, how high will the bullet go?
Thursday, April 23, 2015 by jean

math
Santana wants to cover a gift box shaped like a rectangular prism with foil. The foil costs $0.03 per square inch. Santana has a choice between Box A which is 8 inches long, 3 inches wide, and 6 inches high, and Box B which is 10 inches long, 3 inches wide, and 4 inches high. ...
Thursday, April 23, 2015 by Cara

Physics
A gun converts 200J of stored energy into kinetic energy of the 0.02kg bullet. What is the speed of the bullet as it leaves the gun? If the gun is fired straight up how high will the bullet go?
Thursday, April 23, 2015 by Anonymous

Physics
The bird perched on the swing has a mass of 48.0 g, and the base of the swing has a mass of 159 g. The swing and bird are originally at rest, and then the bird takes off horizontally at 1.20 m/s. How high will the base of the swing rise above its original level? Disregard ...
Thursday, April 23, 2015 by Dom

algebra 2
Three hundred and fifty-eight tickets to the school basketball game were sold. Student tickets were $1.50 and non-student tickets were 3.25. The school made $752.25. How many student tickets were sold?
Wednesday, April 22, 2015 by Megan

Trig
The graph of y-7 cosθ + 24 sinθ would be a sinusoid if it were plotted. What would be the first positive value of θ at which there is a high point?
Wednesday, April 22, 2015 by Elle

physics 111
1. A monkey in a perch 20 m high in a tree drops a coconut above the head of a zoo keeper as he runs with a speed 1.5 m/s beneath the tree actually intending to hit the toes of the zoo keeper, how early in seconds should the coconut be dropped by the monkey. 2 A monkey in a ...
Wednesday, April 22, 2015 by Cali franco

English
What do you take to school? 1. I take the number 2 bus. 2. I take number 2 bus. 3. I take the bus number 2. 4. I take bus number 2. =========== Which one is grammatical and commonly sed?
Wednesday, April 22, 2015 by rfvv

Lumuka secondary school
What job can I do while I am doing Agricultural Sciences, Maths Literacy, Geography, Life Sciences, Life Orientation, Tsonga ang English.
Wednesday, April 22, 2015 by Tsakani shilaluke

accounting
Not recording the Prepaid Rent used causes A. assets to be too high. C. expenses to be too high. D. revenue to be too high. My answer is A
Wednesday, April 22, 2015 by Emi

English
What do you take to school? 1. I take notebooks, textbooks and pencils. 2. I take a bus to school. ======================== What is the answer to the question?
Wednesday, April 22, 2015 by rfvv

English
1. How do you go to school? By bus? Nio, I go there by subway. 2. What do you take to school? By bus? Nio, I go there by subway. ========================= Is #1 the same as #2? Can we use 'What do you take to school?' instead of 'How do you go to school?'
Wednesday, April 22, 2015 by rfvv

Genetics
A researcher who has pioneered cell-free fetal DNA testing to detect trisomies has received threats from people accusing her of killing babies. she counter that the test will actually saves lives. explain how the test can do this the accuracy statistics on cell-free fetal DNA ...
Tuesday, April 21, 2015 by Shala

Calc
A stone is thrown straight up from the edge of a roof, 625 feet above the ground, at a speed of 20 feet per second. A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later?
Tuesday, April 21, 2015 by Frank

Please Read
I just wanted to say thanks to all of the teachers who help out the kids on here because without you guys we do not know where we would be. You guys take out the time of your day to help us out and I really appreciate it and I'm sure everyone else on here does also. Just ...
Tuesday, April 21, 2015 by Kareemah

SS
China's cities are growing rapidly due to A. a high percentage of arable land B. people moving there to look for work C. rural areas becoming too crowded D. the one-child policy A?
Tuesday, April 21, 2015 by Help

math calc
A water tower is located 354 feet from a building. From a window in the building, an observer notes that the angle of elevation to the top of the tower is 42° and that the angle of depression to the bottom of the tower is 20°. How tall is the tower? How high is the ...
Tuesday, April 21, 2015 by Michael

Trigonometry
A 19-ft ladder leans against a building so that the angle between the ground and the ladder is 80∘. How high does the ladder reach on the building? I did 19sin(80) to get me 18.76847847 for how high the ladder reach on the building... but when i put the answer, it's ...
Monday, April 20, 2015 by Michael

Algebra
The student council is asking people to donate money for the new park outside the school. Everyone who makes the suggested donation amount will be given a bracelet. If everyone donates the suggested amount, and b bracelets are given away, what algebraic expression represents ...
Monday, April 20, 2015 by Carol

Trig
Can you please help with this trig question: The angle of elevation to the top of a nearby mountain is 46 degrees. After walking 1 km toward the mountain, you determine the angle of elevation to be 68 degrees. How high is the mountain? Thank you for all your help.
Monday, April 20, 2015 by Cassandra

English
Where does the comma go in these sentences? 1. Usually castles sat on a hilltop, and had high stone walls. 2. Loo at this picture of a castle Cate.
Sunday, April 19, 2015 by kelly

Science
How does a hurricane form? A. It forms over warm ocean water as a low-pressure area. B. It forms over warm ocean water as a high-pressure area. C. It forms over cool ocean water as a low-pressure area. D. It forms over cool ocean water as a high-pressure area. Is the answer B...
Sunday, April 19, 2015 by smoochy

Precalculus Trig (Geometry)
A rectangular doorway is 38 meters wide and 60 meters high. The doorway is capped with a semi-ellipse that is 13 meters high at its center. Find the height h of the doorway and window 5 meters from the center. From the ellipse equation, I can see that a should be 19 and b ...
Sunday, April 19, 2015 by Michele

Precalculus Trig (Geometry)
A large doorway has the shape of a parabolic arch. The doorway is 20 feet high at the top of the arch and 20 feet wide at the base. At a height of 10 feet above the floor, find the width of the arch. If you start the vertex of the parabola at 0,0, that means the equation ...
Sunday, April 19, 2015 by Michele

Science
Estimate the pressure that is exerted on the ground by an average female. In runners? and then In "high heels"?
Sunday, April 19, 2015 by Joe

non profit Accounting
The mayor of a large city approaches a group of citizens and suggests that they form an organization to provide social, educational, and recreational programs for local youth. The group agrees and forms an entity called the Community Youth Organization (CYO). The group also ...
Sunday, April 19, 2015 by mary

Math
School A has 480 students and 16 classrooms, School B has 192 students and 12 classrooms. How many students would have to transfer from School A to School B for the ratios of students to classrooms at both schools to be the same? Explain your answer.
Saturday, April 18, 2015 by Jay

Physics
An arrow is shot horizontally with a speed of 20 m/s from the top of a tower 60 m high .The time to reach the ground will be???????
Saturday, April 18, 2015 by TAMIM

Math
School A has 480 students and 16 classrooms. School b has 192 students and 12 classrooms. A. what is the ratio of students to classrooms at School A? 480:16 B. what is the ratio of students to classrooms at School B? 192:12 C. How many students would have to transfer from ...
Friday, April 17, 2015 by Jay

math
John let out 50 foot of kite string when he observes that his kite is directly above a point on the ground 30 feet away from him, how high is the kite ?
Friday, April 17, 2015 by Auriyan

chemistry
Sulfur dioxide and oxygen gases react at high temperature (400 o C) in the presence of a catalyst(like Pt) to form sulfur trioxide gas. The reaction is started from a gas mixture at 400oC with the partial pressures PSO2 = 15 atm and PO2= 10. atm. What will be the final partial...
Friday, April 17, 2015 by David

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 (and yes i go to to...
Friday, April 17, 2015 by Anon

math
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level. A. 0.14 B. 0.26 C. 211...
Friday, April 17, 2015 by HELP

Algebra (check my work?)
1. Write a proportion using an unknown value x and the ratio 5:6 then solve it. 5/6 = x/12 6 * 2 = 12 5 * 2 = 10 x = 10 2. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of trombones in the orchestra...
Friday, April 17, 2015 by Ivy

statistics
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level. A. 0.14 B. 0.26 C. 211...
Friday, April 17, 2015 by Jane

Physics
A ball rolls off the edge of a 0.75m high lab table with a horizontal speed of 1.50 m/s. Calculate the time that the ball is in flight, calculate the vertical velocity of the ball just before striking the floor, and calculate the horizontal distance(range) that the ball will ...
Thursday, April 16, 2015 by Daniel

Science
1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed Amplitude and wavelength Amplitude and frequency 2. Sound proof rooms...
Thursday, April 16, 2015 by Hailee

Language Arts
1. What is Margot's motivation for saying "Sometimes I wish the end would come" in The Diary of Anne Frank, Act 2? She wants to make Anne angry She wants the others to feel sorry for her She wants someone to give her more food She wants to stop living in fear 2. ...
Thursday, April 16, 2015 by Hailee

Algebra
Write a proportion using an unknown value x and the ratio 5:6 then solve it. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of trombones in the orchestra. How many trombones are in the orchestra? The ...
Thursday, April 16, 2015 by Ivy

Strategies for the Independent Learner
When you approach a text, you should A. survey it, using the technique called SQ3R. B. dive right in at the first page and read the assigned section. C. skip over words you don’t know. D. read only the boldface type. 2. The proctored exams for your degree courses are A. ...
Thursday, April 16, 2015 by Jessica

Science
1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2. Sound proof ...
Thursday, April 16, 2015 by Andrew

physics please help
A rock of mass 5kg is pushed over the edge of a cliff which is 200m high 1.ignore air resistance and calculate the speed of the rock at the bottom of the cliff. In reality air resistance cannot be ignored. The rock eventually reaches terminal velocity of 30m/s 2.calculate the ...
Thursday, April 16, 2015 by Annah van tonder

English
1. Make sure you go to bed early. 2. Make sure you play ping-pong with him. 3. Make sure you talk with the person. 4. Make sure you go back home early. 5. Make sure you call your mother. 6. Make sure you send the money to him. 7. Make sure you take a taxi. 8. Make sure you go ...
Thursday, April 16, 2015 by rfvv

English
What can you do to save electricity? 1. I can turn off the lights when I leave my room. 2 I can turn off the lights when I don't use the room. 3.I can turn off the lights when I don't stay in the room. 4. I can turn off the lights of my classroom when we leave for the ...
Thursday, April 16, 2015 by rfvv

algebra
what is the first step when solving x/15=3/5? write a proportion using an unknown value x and the ratio 5:6 then solve it. in an orchestra, the ratio of trombones to violas is 1 to 3. a. there are 9 violas. write a proportion that gives the number t of trombones in the ...
Wednesday, April 15, 2015 by phan

math
4.In Amy’s English class, 30% of the students play an instrument. She does not know how many in the whole school play an instrument, but there are 500 students in the school. A.Solve the proportion 30/100=n/500 to estimate the total number of students in the school who ...
Wednesday, April 15, 2015 by Francis

geometry
The cargo space of the truck is 2.44 meters wide, 2.76 meters high, and 8.20 meters long. How many cubic meters of cargo space does the truck have?
Wednesday, April 15, 2015 by Anonymous

cda
For school-age children, the environment must include a separate area where children have _______ to do their homework. A. a library and computer B. tables and chairs C. books and encyclopedias D. pens and pencils my answer is c
Wednesday, April 15, 2015 by Liliana

Science/Physics
My question is you walk 3.9 kilometers to school. In gym, you do the 12 minute run and actually make it 2.4 kilometers. After school you walk your friend home first and then go home it is 3.1 kilometers farther than your morning walk to school. What was your total distance ...
Wednesday, April 15, 2015 by Jenna

english
Which of the following would most likely be an entry in a sentence outline? A. Education beyond high school versus education beyond college B. Education as a pathway C. Education as a tool D. Education can change a person's life.
Wednesday, April 15, 2015 by sheila

Science
1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2. Sound proof ...
Wednesday, April 15, 2015 by Lisa

math
Task is to construct two brick columns of the dimensions shown on which an iron gate will eventually be hung. Because the bricks measure 8" long by 3 1/2" wide by 2 1/2" high, you decide to build each column by laying the bottom row of bricks as shown.
Wednesday, April 15, 2015 by keana

science please help and explain asap
A rock of mass 5kg is pushed over the edge of a cliff which is 200m high 1.ignore air resistance and calculate the speed of the rock at the bottom of the cliff. In reality air resistance cannot be ignored. The rock eventually reaches terminal velocity of 30m/s 2.calculate the ...
Wednesday, April 15, 2015 by Annah van tonder

statistics
Suppose that fÈ and fX|È are described by simple closed-form formulas. Suppose that È is one-dimensional but X is high-dimensional. a) Suppose that a specific value x of the random variable X has been observed. Is it true that the calculation of the LMS ...
Tuesday, April 14, 2015 by alec

Science
1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2. Sound proof ...
Tuesday, April 14, 2015 by Hailee

physics
A ball is thrown vertically upward from the edge of a cliff of height 131 m. The initial velocity is 77.7 m/s. how high is the cliff?
Tuesday, April 14, 2015 by Holly

Sociology
Hi, I'm writing a paper for my social problems class and am having a hard time coming up with advantages and disadvantages of increasing the number of street-patrolling police officers as a means to combat the high prevalence of violent crime within the major cities of the...
Tuesday, April 14, 2015 by mysterychicken

Math
A flagpole is 5.4 meters high . Express this height in feet and inches.
Monday, April 13, 2015 by Tina

Science
why is electricity is not sent in smaller voltages from the power station rather than substation? why does the sub stations smaller the high voltages, why aren't they sent in smaller voltages from the power station?
Monday, April 13, 2015 by Abdi

PHY 113
1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat gained by the cold body in any system provided...
Monday, April 13, 2015 by Austin

Physics
I have a question on fluids. Water in a section 1.2m wide, 2m high. retained by sluice gate that can pivot about its base. There is a retaining cable at the top of the gate. Determine tension in the retaining cable at the top of the gate when the depth of water is 1.8m. ...
Monday, April 13, 2015 by Danny

POL 201: American National Government
4. An appellate court that hears an appeal on a money laundering case from a district court (Points : 1) is not concerned with guilt or innocence. can only send the case back for retrial. is concerned with whether proper legal procedures were followed during the district court...
Monday, April 13, 2015 by Jan

History
As a result of the Industrial Revolution, British and French financiers built up enormous reserves of capital. Seeking to earn high rates of return on their investments, they helped to finance all of the following except: (choose one) a. The Suez Canal in Egypt, which ...
Monday, April 13, 2015 by Sarah

Mechanical Principles
I have a question on fluids. Water in a section 1.2m wide, 2m high. retained by sluice gate that can pivot about its base. There is a retaining cable at the top of the gate. Determine tension in the retaining cable at the top of the gate when the depth of water is 1.8m. ...
Monday, April 13, 2015 by Danny

Physics
A not so brilliant physics students wants to jump from their 3rd floor apartment window to the swimming pool below. The problem is the base of the apartment is 8.00 meters from the pool’s edge. If the window is 20.0 meters high, how fast does the student have to be ...
Sunday, April 12, 2015 by Carla Mae

Chemistry
Identify the correct statement for the following reaction: Br2 (l) → Br2 (g) ΔH° = 30.9 kJ ΔS° = 93.2 J/K A) The reaction is always spontaneous. B) The reaction is never spontaneous. C) The reaction is at equilibrium; therefore, ΔG° = 0. D) The...
Sunday, April 12, 2015 by Chase

physics
An electrical power plant generates electricity with a current of 50A and a potential difference of 20,000 V. In order to minimize the power losses due to the high current heating up the line, a transformer steps up the potential difference to 500,000 V before it is ...
Sunday, April 12, 2015 by Anonymous

physics
1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat gained by the cold body in any system provided...
Sunday, April 12, 2015 by promise

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