Homework Help: High School

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Math
what is surface are of a prism with a base of 8 meters squared , a perimeter of 3 meters and 6 maters high
Tuesday, February 12, 2013 at 10:14am

physical sciences
A child throws a coin vertically downwards from a window of high building with an initial velocity of 15 m/s.Ignore the effect of air friction. Calculate vhow lonfg the coin falls
Tuesday, February 12, 2013 at 9:08am

math
Suppose 8 out of every 20 students are absent from school less than five days a year. Predict how many students would be absent from school less than five days a year out of 40,000 students.
Monday, February 11, 2013 at 10:22pm

English
1..He (saw, seen) dozens of beautiful yellow roses. 2. He (saw, seen) a film about safety. 3. They saw a car that (ran, run) a red light. 4. Officer Hill (did, done) a good job at our school. 1. saw 2. saw 3. ran 4. did
Monday, February 11, 2013 at 10:01pm

Lead
Hi i'm trying to write a lead for my Journalism class, tell me which works best. If they both need revised can you point it out? In Kalamazoo County unemployment for white people is at 10.2 percent, whereas for black people it is at 21.2 percent, according to American ...
Monday, February 11, 2013 at 9:17pm

World History- (Ms. Sue).
What is the significance of the Hudson River school?
Monday, February 11, 2013 at 6:37pm

Physics
Situation: While holding his rifle at shoulder-level, a 1.8 meter tall hunter accidentally discharges it straight up into the air. Questions: 1) If the bullet exits the barrel of the rifel at 200 meters per second squared, how many seconds does the hunter have to "step ...
Monday, February 11, 2013 at 5:05pm

Math Word Problem Help
Your high school is having a spring carnival. Admission into the carnival is $3 and each game inside the carnival costs $.50. Write an inequality that represents the possible number of games that can be played having $20. What is the maximum number of games that can be played?
Monday, February 11, 2013 at 3:44pm

mATH
First graders who misbehave in school may be more likely to be regular smokers as young adults according to a new study presented in the July 2004 issue of the American Journal of Epidemiology. After following a group of U.S. first graders for 15 years, it was found that among...
Monday, February 11, 2013 at 1:31pm

bramalea secondary school
how many ways can you roll a pair of standard dice without getting a double?
Monday, February 11, 2013 at 12:59pm

Math
A person jumps off a 20m high cliff into the water below. The height of the person above the ground at t time seconds is given by the equation h=-5t^2+30. How long does it take the person to reach the half way mark to the water?
Monday, February 11, 2013 at 9:39am

AMERICAN GOVERMENT Would someone PLEASE check ans
1. The source of the Supreme Court’s authority is (D) moral suasion. judicial activism. concurring opinion. dissent. 2. When the Supreme Court hands down a decision, it is (A) often a mixed decision with majority, dissenting, and even concurring opinions. always a ...
Sunday, February 10, 2013 at 9:41pm

physics
A rock is dropped from a treetop 19.6 m high, and then, 1.00 s later, a second rock is thrown down. With what initial velocity must the second rock be thrown if it is to reach the ground at the same time as the first? I'm not sure how to find the initial velocity of the ...
Sunday, February 10, 2013 at 7:00pm

Physics Conservation of Energy
During a rockslide, a 740 kg rock slides from rest down a hillside that is 500 m long and 300 m high. The coefficient of kinetic friction between the rock and the hill surface is 0.18. (a) If the gravitational potential energy U of the rock-Earth system is set to zero at the ...
Sunday, February 10, 2013 at 6:18pm

math
Atdewberry Elementary there are 5 times as many boys than girls. Let (b) represent the number of boys. Which expression shows the number of girls students at the school. a. 5xb b. 5 divided by b c. b divided by 5 d. bx5 my answer is B. Is this correct?
Sunday, February 10, 2013 at 12:57pm

Math-Statistics
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
Sunday, February 10, 2013 at 9:36am

physics
a soccer player takes a penalty kick 11.0m from the goal. to score she has to shoot the ball under the 2.44m high crossbar. if she kicks at 19.8m/s, what range of launch angles will result in a goal?
Saturday, February 9, 2013 at 6:21pm

physics
a projectile is fired horizontally at 13.4m/s from the edge of a 9.50m high cliff and strikes the ground. (a) what is the horizontal distance it traveled. (b)the elapsed time (c)the final velocity
Saturday, February 9, 2013 at 5:48pm

physics
a ball roles off a horizontal table at 0.30 m/s and strikes the ground 0.15m horizontally from the base of the table. (a) how high is the table (b) if another ball roles off the same table at 0.60 m/s how far from the base of the table does it hit.
Saturday, February 9, 2013 at 5:43pm

Statistics
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
Saturday, February 9, 2013 at 5:04pm

math
when a ball is dropped, it bounces back up 4/5 of the height from the height it was dropped.If the ball dropped from a height of 200cm, how high does it go after bouncing twice.
Saturday, February 9, 2013 at 4:36pm

Probability
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
Saturday, February 9, 2013 at 3:07pm

stats
suppose you are to form a scatterplot oby collecting data for the given pair of variables. determine the likely direction form and strngth. Student: high grade point average, student: studying consistency
Saturday, February 9, 2013 at 1:36pm

Chemistry
The main reason for the increase in reaction rate with temperature is that: The activation energy increases rapidly with temp (I think it is this one) A 10 C temp rise results in the rate doubling heats acts as a catalyst or The fraction of high-energy molecules increases ...
Saturday, February 9, 2013 at 12:26pm

maths
if Arvind cycles 10km/hr ,he reaches the school late by 4min,/if he cycles 12km/hr,he reaches the school early by 2min,find the distance of the school from his home.
Saturday, February 9, 2013 at 5:28am

Math
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
Friday, February 8, 2013 at 11:22am

English
1. The distance to the finish line seemed (endless). 2. I have ever ran so (fast). 3. Eli ran a surprisingly (fast) time in the trial. 4. He walked (confidently) to the starting blocks. 5. Is the high jump the first (field) event? 6. We looked (exhausted), but we felt great! ...
Friday, February 8, 2013 at 2:04am

Language
1. The distance to the finish line seemed (endless). 2. I have ever ran so (fast). 3. Eli ran a surprisingly (fast) time in the trial. 4. He walked (confidently) to the starting blocks. 5. Is the high jump the first (field) event? 6. We looked (exhausted), but we felt great! ...
Thursday, February 7, 2013 at 11:16pm

Language
1. We arrived (late) for the track meet. 2. The locker room smelled (musty). 3. Will the first event begin (soon)? 4. The (anxious) participants filled the bleachers. 5. Can you line up (quickly)? 6. I can't believe I finished (first)! 7. Is the high jump the fist (field) ...
Thursday, February 7, 2013 at 10:45pm

HARD PHYSICS
which way do electric-field lines point, from high to low potential or from low to high? Explain please
Thursday, February 7, 2013 at 10:15pm

asap
To get to school Eliza walks east to the corner of her street and then turns north 90 degrees to the left when she reaches the school she realizes that she forgot her lunch and turns southwest 144 degrees to the left to face her house she then walks straight toward her house ...
Thursday, February 7, 2013 at 9:13pm

Algebra 2
Solve and Graph: ( i know that second part would be difficult but can you possibly explain it more) -3©¦x+4©¦-5 ¡Ý 10 Please explain. I would really appreciate it. I'm not in school, i'm homebound and mom will not allow me to attend...
Thursday, February 7, 2013 at 8:01pm

Math
This chart shows how high a ball bounces when dropped from different heights If this ball is dropped from 350 in how high will it bounce? Drop in inches Bounce Height 50 25 100 50 150 75 200 100 A.200 B.175 C.150 D.120 B?
Thursday, February 7, 2013 at 7:36pm

physics
From a height of 2.15 m above the floor of Boston's Fleet Center, forward Paul Pierce tosses a shot straight up next to the basketball hoop with a KE of 5.40 J. If his regulation-size. basketball has a mass of 0.600 kg, will his shot go as high as the 3.04 m hoop? Use the ...
Thursday, February 7, 2013 at 7:21pm

math
The school choir members have collected 6,000 aluminum cans. If the recycling center pays $2 for 500 cans, how much money will the choir earn?
Thursday, February 7, 2013 at 5:41pm

physics
which way do electric-field lines point, from high to low potential or from low to high? Explain please
Thursday, February 7, 2013 at 5:16pm

Math
The Midtown Middle School cheerleaders earned $175 at a car wash. If this amount is 25% of the cost of a new set of uniforms, what is the total cost fora a set of uniforms? Explain your reasoning.
Thursday, February 7, 2013 at 4:47pm

health
Extreme efforts to lose weight among teenagers can lead to ________. A. Obesity related illnesses B. Eating disorders C. More energy D. High self-esteem i think its b
Thursday, February 7, 2013 at 1:55pm

Physics
A golfer has to hit a ball over a tree that is 12.0 meters high from 40.0 meters away. The ball is hit with speed v at an angle (-) to the horizontal. Neglect any effect due to air. The golfer hits the ball with an initial velocity 30 degrees to the horizontal. Calculate the ...
Thursday, February 7, 2013 at 1:11pm

physics
A rocket is fired at a speed of 91.0 m/s from ground level, at an angle of 49.0 ° above the horizontal. The rocket is fired toward an 21.4-m high wall, which is located 25.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
Thursday, February 7, 2013 at 12:42pm

Movement and Music
Can you please check my semester exam before I turn it in? 1. Children who do poorly in school are primarily ______ learners. a. Auditory b. Kinesthetic c. Spatial d. visual My answer: c 2. A movement program that emphasized divergent problem solving, discovery, and self-...
Thursday, February 7, 2013 at 12:37pm

physics
A clear plastic tube with a diameter of 12cm and 110cm high is filled to the top with mercury. (density = 13.6 kg/m^3). There are three holes, all with a radius of 2 millimeters located 15cm from the bottom, 50cm from the bottom and 80cm from the bottom. A) What is the ...
Thursday, February 7, 2013 at 12:08am

Math
it is a rectangle with a height to length ratio of 2 to 25 . if the window is 24 feet high. how long is it?______ft
Wednesday, February 6, 2013 at 11:57pm

Physics
Stephanie hits a volleyball from a height of 0.80m and gives it on initial velocity of 17.5m/s straight up 1. How high will the volleyball go? 2.how long will it take the ball to reach its maximum height?
Wednesday, February 6, 2013 at 9:34pm

Broadcast writing-Revised
FYI: It is in all caps because with this class our teacher recommends us to write this way because it's easier to read out loud. I revised it A UNIVERSITY STUDENT RAN INTO HER PROFESSOR AT SCHOOL THE SAME DAY SHE PRETENDED TO BE SICK. NAOMI BUSH SAYS BECAUSE SHE DID NOT ...
Wednesday, February 6, 2013 at 9:23pm

Statistics
A study of reading ability in schoolchildren chose 60 fifth-grade children at random from a school. The researchers had children's scores on an IQ test and on a test of reading ability. An eccentric professor has his own idea of the relationship between IQ and reading ...
Wednesday, February 6, 2013 at 9:22pm

Broadcast/english
Would someone please proofread my broadcast news story.. I'd appreciate feedback. Thanks in advance A University student ran into her professor at school the same day she pretended to be sick. Naomi Bush says because she did not finish her project last week when it was ...
Wednesday, February 6, 2013 at 8:11pm

chemistry
Alexandra decides to climb Mt. Krumpett, which is 5000 high. She determines that this will require a total of 3600 of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 of carbohydrates, 10 of fat, and 40 of...
Wednesday, February 6, 2013 at 7:34pm

Physics
A dolphin jumps with an initial velocity of 13.0at an angle of 44.0 above the horizontal. The dolphin passes through the center of a hoop before returning to the water. If the dolphin is moving horizontally when it goes through the hoop, how high above the water is the center ...
Wednesday, February 6, 2013 at 1:28pm

Bokgoni technical secondary school
1. The sun set like? 2. The clouds looked just? 3. The moon smiled because? 4. The wind was like a lover's soul because? 5. Six silly students? 6. There are over a million?
Wednesday, February 6, 2013 at 5:07am

physics
a mass m=8 kg sits on top of an h=1.8 m high table. The angle of the ramp is theta= 35 degrees. What is the length of the ramp.
Tuesday, February 5, 2013 at 10:48pm

Physical Science
I studied this 2 years ago in college and am no back in school. I can't remember any of this stuff and I really need to figure it out. Please Help Me!! The Latent Heat of Vaporization for water is 540. cal/g. How much heat (in calories) must be added to 10.0 g of water at ...
Tuesday, February 5, 2013 at 10:05pm

Criminal precedure
Question 11 of 20 5.0 Points Under the Fourth Amendment, which of the following is NOT a valid purpose for setting up a roadblock? A. Immigration law enforcement B. Detecting drunk drivers C. Checking for drivers licenses and registration D. Drug detection Reset Selection ...
Tuesday, February 5, 2013 at 8:45pm

architecture
Describe the differences you observe between the art and architecture of the Early Renaissance (Chapter 8) and that of the High and Late Renaissance. Select an Early Renaissance work of painting, sculpture, and architecture, and compare them to examples from the High or Late ...
Tuesday, February 5, 2013 at 11:33am

School For Human Rights
A student wants to prepare Halite. How much sodium can he use to completely react it with 30g of Chlorine gas?
Monday, February 4, 2013 at 11:09pm

Math
A photograph is 25 cm and 20 cm high. It must be reduced to fit a space that is 8 cm high. Find the width of the reduced photograph.
Monday, February 4, 2013 at 6:58pm

communication
Please HELP!! Question 1 of 20 5.0 Points Which of the following would be the LEAST appropriate in the closing paragraph of a negative message? A. "Let us know if model #A01 would be a suitable substitution." B. "Our layaway plan will enable you to purchase all ...
Monday, February 4, 2013 at 5:42pm

physics
A heavy crate accidentally falls from a high flying airplane just as it flies directly above a Porsche parked in a car lot. Relative to the Porsche, where will the crate crash?
Monday, February 4, 2013 at 3:52pm

Inkambeni p school
How many kilometres on the ground is 3 cm distance on the map of south africa
Monday, February 4, 2013 at 12:41pm

physics
A 52.5g super ball traveling at 28.0m/s bounces off a brick wall and rebounds at 18.5m/s. A high speed camera records this event. If the ball is in contact with the wall for 4.10ms, what is the magnitude of the average acceleration of the ball during this time interval?
Monday, February 4, 2013 at 11:02am

Trigonometry
Wave Motion A buoy oscillates in simple harmonic motion as waves go past. At a given time it is noted that the buoy moves a total of 3.5 feet from its low point to its high point, and that it returns to its high point every 10 seconds. Write an equation that describes the ...
Monday, February 4, 2013 at 1:51am

Math Algebra
Here the missing Infos ;-)). The Physics of Baseball by Robert Adair - after t seconds, starting 1 sec after 35 angle, rotating with an initial backspin of 2000 revolutions per minute, and hit about 110mph is given by H(t)= -80t^2+340t-260 (in feet) a)how many seconds ...
Sunday, February 3, 2013 at 11:56pm

Math 8R
If there was a mobile lunch table used at a high school. Approximately how many students can per table? (The question asking is that there's a mobile table. They sometimes use mobile tables *round tables* in high school. How many students can sit in one table). a) 6 b) 7 c...
Sunday, February 3, 2013 at 9:32pm

english
i need to write a historical narrative for school. it has to have dialogue and be in any persons viewpoint from the great depression and world war 2. it has to revolve around a specific climax or such. so i need some help coming up what to write about! thanks much.
Sunday, February 3, 2013 at 6:18pm

statistics
1. The scores on a standardized test for high school students are normally distributed with a population mean of 500 and a population standard deviation of 100. Use the empirical rule (0LI refers to this as the standard deviation rule.). Make sure you provide graphs for each ...
Sunday, February 3, 2013 at 12:26pm

Math
In the Math department of a school, 10 teachers have YM accounts, 13 have GM accounts, and 6 have both accounts. How many teachers in Department have YM or GM accounts?
Sunday, February 3, 2013 at 6:27am

physics
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. The ball is hit with an initial velocity of 23.0 m/s at an angle of 54.0° above the horizontal. How high will the ball rise? . m ...
Sunday, February 3, 2013 at 1:18am

math
A cliff on the bank of a river is 300m high if angle of deprssion of a point on the oposite side of the river is 60 digree find the wigth of the river
Saturday, February 2, 2013 at 11:08pm

Physics
A total of 100000 kg of water per second flows over a waterfall 30 m high. If half of the power this flow represents could be converted into electricity, how many 100 watt lightbulbs could be supplied?
Saturday, February 2, 2013 at 3:07pm

math
I have a question is this cheating when we ask questions from our school work ? Wouldn't our on line school know we are kids are doing this ? What is an ethical homework question ? Curious..
Saturday, February 2, 2013 at 2:09pm

math
franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade. A. how many are boys and how many are girls??? pleassseee helpppp meeeeee!!!!
Saturday, February 2, 2013 at 12:12pm

System Analyst and Design
Sky-High Internet Services Situation: Sky-High Internet Services is a leading Internet service provider in a metropolitan area. The new customer billing system has caused an increase in complaints. Tammy Jones, the office manager, asked you to investigate the situation. After...
Saturday, February 2, 2013 at 8:40am

science
Sky-High Internet Services Situation: Sky-High Internet Services is a leading Internet service provider in a metropolitan area. The new customer billing system has caused an increase in complaints. Tammy Jones, the office manager, asked you to investigate the situation. After ...
Saturday, February 2, 2013 at 8:38am

physics
A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.54 s after it was thrown. How high is the cliff?
Friday, February 1, 2013 at 8:10pm

Thesis statements??
Which of the sentences below is the best option for a thesis statement? A. An after-school program at the community center might involve classes, sports, and other activities in which children can take part. B. I think young children should have a club or activity to go to ...
Friday, February 1, 2013 at 5:57pm

science
i have a project for school and i need to seperate these things using house items. the ojects are marbles rice and coosecoose(its like smaller than rice) so i need to know how to seperate the things. PLZ I NEED HELP!
Friday, February 1, 2013 at 5:06pm

health
Infant formula are planned to be: a. high in protein b.high in minerals and vitamins c.low in sugar d.similar to breast milk I think b not sure
Friday, February 1, 2013 at 2:03pm

physics
Suppose that on earth you can throw a ball vertically upward a distance of 2.39 m. Given that the acceleration of gravity on Mars is 3.80 m/s2, how high could you throw a ball on Mars? (Take the y-axis in the vertical direction, and assume that the location of your hand is at ...
Thursday, January 31, 2013 at 11:53pm

science
An object is projected vertically upwwards at 8 meters per second from the roof of a building which is 60 meters high.it strikes the balcony below in 4 seconds.What is the velocity at which the object strikes the balcony?
Thursday, January 31, 2013 at 9:34pm

math
Six hundred people came to the band concert that was held on the school's athletic field. half of the people sat in the bleachers. one third of the people sat in chairs on the track. the rest of the people sat on the grass. How many sat on the grass? In chairs? In the ...
Thursday, January 31, 2013 at 5:24pm

Movement & Music
Children who do poorly in school are primarily ________ learners. a. auditory b. kinesthetic c. spatial d. visual I think C is correct..
Thursday, January 31, 2013 at 1:09pm

maths lit
a ball is dropped from a height of 2r1/3 meters. It bounces to 3/4 of the height from which it fell at each boune. A) determine the height the ball reaches after one bounce. B) how many bounces does it take to bounce less than 1 meter high??
Thursday, January 31, 2013 at 9:40am

calculus 2
A tomato is thrown upward from a bridge 23 m above the ground at 40 m/sec. find acceleration, velocity, and height of tomato at time t. How high does the tomato go, and when does it reach its highest point?
Thursday, January 31, 2013 at 12:40am

MATH
the dimension of an aquarium are 20 inchs long ,14 inchs wide, and 18 inches high. if 231 cubic inches of water weighs 1 gallon, how many gallons of water are in the aquarium to the nearest gallon?
Wednesday, January 30, 2013 at 9:46pm

algebra
An office supply store sells pens for $3 and notebooks for $5. Before school started, the store sold 12 more pens than notebooks and made $324. Which system of equations could be used to find the number of pens, p, and notebook, n that the store sold that day?
Wednesday, January 30, 2013 at 9:24pm

pROBABILITY AND STATISTIC..HELP...................
A small store installed a diesel-powered generator for emergency power outage because they function independently of electric power. The past history of the town indicates that on about 5% of days during summer the town loses electricity due to high winds. However, high winds ...
Wednesday, January 30, 2013 at 8:49pm

H. CHemistry
if the atmosphere can support a column of mercury 760 mm high at sea level, what height of a hypothetical liquid whose density is 1.40 times the density of mercury could supported?
Wednesday, January 30, 2013 at 6:13pm

Physics ~Conservation of Energy~ part 2
1.) A 500 kg roller coaster is pulled to the top of a hill 45 m high and arrives at the top with a zero speed. a) how much work has done by the vhain to pull the car to the top? b) how much potential energy does it have at the top? c)What is the total energy of the system? d) ...
Wednesday, January 30, 2013 at 6:12pm

Physics ~Conservation of Energy~
1.) At one point in its fall, an object (m=2.5 kg.) has a kinetic energy of 5 J(joule) and a potential energy of 10 J. a) what is the total energy of the system? b) what is the velocity at this point? The object continues to another point where its potential energy is 3J(joule...
Wednesday, January 30, 2013 at 5:57pm

English and Grammar
Primal fear is thriller, crime, mystery movie. The film is set in the courtroom and church the City of Chicago in the year 1990’s. The movie is directed by Gregory Hoblit and this was his first theatrical film released. The movie is an adaptation of William Diehl’s ...
Wednesday, January 30, 2013 at 1:23pm

English
Primal fear is thriller, crime, mystery movie. The film is set in the courtroom and church the City of Chicago in the year 1990’s. The movie is directed by Gregory Hoblit and this was his first theatrical film released. The movie is an adaptation of William Diehl’s ...
Wednesday, January 30, 2013 at 12:31pm

mechanics
a stone is dropped from a cliff 200m high.if a second stone is thrown verticall upwards 1.50seconds after the first was released.strike the cliff base at the same instant as the first stone.with what velocity was the second stone thrown
Wednesday, January 30, 2013 at 6:00am

MATH
There are 5 male students to every 9 female students at a local school. Select the statement of the condition when there are 30 male students
Tuesday, January 29, 2013 at 10:49pm

Rcm sr sec school
A block is on a horizontal slab which is moving horizontally with a simple harmonic motion of frequency two oscillations per second . The cofficient of static friction between the block and the slab is 0.50. How great the amplitude can be if the block does not slip along the ...
Tuesday, January 29, 2013 at 7:55pm

math
During an art contest at your school, you and a classmate each won blue ribbons for 1/3 of the pieces you entered in the contest. You won 2 blue ribbons and your classmate won 3 blue ribbons. Explain how this could be.
Tuesday, January 29, 2013 at 7:46pm

Math help
If a student brings 5 pets to school but there are 20 in the class and 35 pets how many did each student bring?
Tuesday, January 29, 2013 at 7:19pm

Math - check answer
A rifle bullet is fired directly upward from the ground. Its height above the ground at any instant of time t is given by the formula, s = 63t - 9.8t2. Assuming there is no air resistance how high will the bullet rise? height in meters = My Answer S'= 63-19t s"=0-19.6...
Tuesday, January 29, 2013 at 5:52pm

Maths
A bouncy ball bounces 16m on its first bounce and then 8m on the second bounce. Each time it bounces the height halves. How high will the ball bounce on the 10th bounce?
Tuesday, January 29, 2013 at 1:25pm

Physics
A 2.98 kg ball is dropped from the roof of a building 158.3 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 13.1 N on the ball. A.)How long does it take to hit the ground? The acceleration of gravity is 9.81 m/s^2. Answer in units of s ...
Tuesday, January 29, 2013 at 8:28am

trigonometry
as you walk on a straight level path toward a mountain, the measure of the angle of elevation to the peak from one point is 33 degrees. From a point 1000 feet closer, the angle of elevation is 35 feet. How high is the mountain?
Tuesday, January 29, 2013 at 5:15am

energy
A boy weighing 350Newton runs up a flight of stairs consisting of 20 stairs each, 16 centimeter high in seconds, what ??$ it's power?
Monday, January 28, 2013 at 10:47pm

high shoool algebra
Joy is 20 years older than Bob. Three years ago, Joy was 5 times as old as Bob. How old are they now?
Monday, January 28, 2013 at 9:53pm

calculus 2
A tomato is thrown upward from a bridge 23 m above the ground at 40 m/sec. Take the acceleration of gravity be equal to 9.8 m/s^2 (a) Give formulas for the acceleration, velocity, and height of the tomato at time t. (b) How high does the tomato go, and when does it reach its ...
Monday, January 28, 2013 at 9:35pm

Physics
A tomato is thrown upward from a bridge 23 m above the ground at 40 m/sec. Take the acceleration of gravity be equal to 9.8 m/s^2 (a) Give formulas for the acceleration, velocity, and height of the tomato at time t. (b) How high does the tomato go, and when does it reach its ...
Monday, January 28, 2013 at 9:34pm

math
write the hidden question or questions in the problem Billy Bob wins $500 in a school raffle. He decides to keep $120 for himself, give $60 to charity, and divide the rest equally among his 5 brothers & sisters. How much will each brother zor sister Recieve from billy bob?
Monday, January 28, 2013 at 6:30pm

Math
Students in Mr. Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? A. The diameter is about 1/3 of the circumference B.The diameter is ...
Monday, January 28, 2013 at 6:27pm

History
1. Why did the rise of dictators cause concern in the 1930s? Countries ruled by dictators became vulnerable to attack. Dictators placed high tariffs on imported goods. Dictators believed in a weak central government. Dictators often planned to attack and conquer other ...
Monday, January 28, 2013 at 3:15pm

writing
Edit mMath Autobiography Theresa V. Monteiro MAT 095 11:00 AM – 12:15 PM My name is Theresa and I am from Norwalk Connecticut. I’ve been living here for a year now. I moved to New London Connecticut to start my life. I’ve taken care of all my immediate family ...
Monday, January 28, 2013 at 11:59am

Engineering Math
A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach 98dB(A). ...
Monday, January 28, 2013 at 10:05am

Physics
Stephanie serves a volleyball from a height of 0.78 m and gives it an initial velocity of +7.7 m/s straight up. How high will the volleyball go? The acceleration of gravity is 9.81 m/s^2. How long will it take the ball to reach its maximum height?
Monday, January 28, 2013 at 8:50am

phy
A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the passenger Both ...
Monday, January 28, 2013 at 3:33am

phy
1 An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. Where will the object be 3 s after it is thrown? Take g=10ms−2 15 m above the top of the building 30 m below the top of the building 15 m below the top of the building 30 m above the...
Monday, January 28, 2013 at 3:32am

Math
The following data represents the high-temperature distribution for a summer month in a city for some of the last 130 years. Treat the data as a population. Temperature Days 50-59 4 60-69 309 70-79 1428 80-89 1485 90-99 393 100-109 8 According to the empirical rule, 95% of ...
Sunday, January 27, 2013 at 8:31pm

maths
Suppose you have $9000 to invest and you invest part of it ($×) in a high risk venture at 11.5% per annum and the remainder with the bank at 4.5% per annum, both for one year. 1) write an algebraic expression for the amount of money invested at 4.5% 2) write an algebraic...
Sunday, January 27, 2013 at 8:05pm

English
High I need to describe Rocky Mountains from my view but i never saw them. Can someone please help me to write 2 sentence description of rocky mountains. Our teacher told us it should be in Imagery Format. Please Help!!!!
Sunday, January 27, 2013 at 5:54pm

physics
A cement block accidentally falls from rest from the ledge of a 51.7-m-high building. When the block is 14.9 m above the ground, a man, 2.05 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?
Sunday, January 27, 2013 at 4:20pm

algebra 1
at a certain high school,350 students are taking algebra. the ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? - How can you write a system of equations to model the situation? - Which equation will you solve for a variable in ...
Sunday, January 27, 2013 at 3:24pm

statistic
Over the past 10 years, the local school district has measured physical fitness for all high school freshmen. During that time, the average score on a treadmill endurance task has been μ 19.8 minutes with a standard deviation of 7.2 minutes. Assuming that ...
Sunday, January 27, 2013 at 2:10am

physics
A child and sled with a combined mass of 47.8 kg slide down a frictionless hill that is 7.18 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
Saturday, January 26, 2013 at 9:26pm

Math
The Americans with disabilities act requires that wheelchair ramps have a slope no greater than 1/12 what is the minimum horizontal length a 2 foot high ramp can have ?
Saturday, January 26, 2013 at 5:52pm

Math
Students in Mr.Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? A.The diameter is about 1/3 of the circumference B.The diameter is about ...
Saturday, January 26, 2013 at 12:35pm

physics
A batted baseball leaves the bat at an angle of 26.0^\circ above the horizontal and is caught by an outfielder 355{\rm ft} from home plate at the same height from which it left the bat. What was the initial speed of the ball? How high does the ball rise above the point where ...
Saturday, January 26, 2013 at 2:55am

physics
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 24.0{\rm m}/{\rm s} as it leaves the hose nozzle. Once it leaves the hose, the water moves in projectile motion. The firemen adjust the angle of elevation of...
Saturday, January 26, 2013 at 1:26am

physics
A 47.0-g Super Ball traveling at 26.5 m/s bounces off a brick wall and rebounds at 20.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.10 ms, what is the magnitude of the average acceleration of the ball during this time interval?
Friday, January 25, 2013 at 5:39pm

physics
Mason lifts a box off the ground and places it in a car that is 0.50 meters high. If he applies a force of 8.0 newtons to lift this suitcase, what is the work done?
Friday, January 25, 2013 at 12:10pm

Statistics
A college’s data about the incoming freshmen indicates that the mean of their high school GPAs was 3.4, with a standard deviation of 0.35; the distribution was roughly mound-shaped and only slightly skewed. The students are randomly assigned to freshman writing sem- inars...
Friday, January 25, 2013 at 11:57am

Chemistry 12
name a compound that acts as a weak base? methanol? define the term weak bronsted-lowry base im not sure how to put this in words, but a weak base is found when you got a strong acid, when your ka is high, kb will be low.
Friday, January 25, 2013 at 12:59am

Physics STUCK!
A point on the A string of a guitar oscillates in approximately simple harmonic motion with a frequency of 113 Hz and an amplitude of 1.04 mm. Find the maximum speed and acceleration of this point. SOLVE FOR: vmax = amax Can you please provide me with the equation as well as ...
Thursday, January 24, 2013 at 10:46pm

Physics
A 50.0 g Super Ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 17.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.00 ms, what is the magnitude of the average acceleration of the ball during this time interval? (...
Thursday, January 24, 2013 at 10:16pm

math
lucienne and her class made 684 notecards for a school benefit. How many boxes of eight can they fill. Tell what you did with the remainder. Explain why.
Thursday, January 24, 2013 at 9:06pm

math
lucienne and her class made 684 notecards for a school benefit. How many boxes of eight can they fill? Tell what you did with the remainder. Explain why. Please answer fast, im in a hurry D:
Thursday, January 24, 2013 at 8:56pm

English
Read the clauses. Then write main or subordinate for each clause. if the clause is a subordinate clause add a main clause to make it a complex sentence Before I go to school Subordinate Before I go to school I take a shower We heard a concert at Town Lake Park main That I read...
Thursday, January 24, 2013 at 8:48pm

Introduction to management
Young, innovative, or high-tech firms often adopt the strategy of ignoring history or attempting to do something radically new. In what ways might this strategy hinder them?
Thursday, January 24, 2013 at 6:55pm

Hi Guys
Hello, I just wanted to say thank you, thank you all for helping us with our homework and school. Thank you all. ^-^
Thursday, January 24, 2013 at 5:10pm

Physics -- please help
Brittany throws a slingshot pellet directly at a target that is far enough away to take 0.190 s to reach. How far below the target does the pellet hit? Enter m as unit. How high above the target should she aim? Enter m as unit.
Thursday, January 24, 2013 at 2:28pm

science
A rocket is shot upward from the ground with an initial velocity of 15.5 m/s. How high does the rocket travel?
Thursday, January 24, 2013 at 8:18am

science
A rocket is shot upward from the ground with an initial velocity of 15.5 m/s. How high does the rocket travel?
Thursday, January 24, 2013 at 3:35am

Pre Calculus 12
Another sine/cosine question i dont get in vancouver on certain day, high tide is 20m at 2am, the next low tide is 8m at 6am, what an equation that represents height (h)of water at any time (t)since midnight) what is the height of water at 8:45AM? What is height of water at 8:...
Wednesday, January 23, 2013 at 11:32pm

Pre Calculus 12
Modelling with sine/cosine A Ferris wheel has a diameter of 30m. The bottom of the wheel is 1.5m off the ground it takes 3.5min to make one complete revolution. a person gets on ferris wheel at its lowest point at time = 0. write an equation that represents persons height ...
Wednesday, January 23, 2013 at 10:53pm

Physics
A baseball is thrown with an initial velocity of 37 m/s at an angle of 26 degrees above horizontal, from the top of the building which is 72 meters high. A. What will be the horizontal and vertical components of this baseballs velocity? B. what will be the vertical velocity of...
Wednesday, January 23, 2013 at 9:42pm

physics
Both car A and car B leave school at the same time, traveling in the same direction. Car A travels at a constant speed of 75 km/h, while gonzalez (gg24935) – HW 02 – wieman – (053305132) 2 car B travels at a constant speed of 89 km/h. How far is Car A from ...
Wednesday, January 23, 2013 at 8:12pm

Physics
Brittany throws a slingshot pellet directly at a target that is far enough away to take 0.190 s to reach. How far below the target does the pellet hit? Enter m as unit. How high above the target should she aim? Enter m as unit.
Wednesday, January 23, 2013 at 8:01pm

Physics
A stone is dropped from rest from the roof of a 100-m high building; 2.00 s after that, a second stone is thrown straight down with initial speed v0, and the second stone passes the first stone 21.6 m above ground. (a) When are the stones at the same height? (b) What was the ...
Wednesday, January 23, 2013 at 6:15pm

English
Identify the term that best describes the words/phrases in parentheses. 1. The teacher asked her pupils to (stay) put during the screening of the documentary. linking verb action verb 2. The committee judged the logo (the most appropriate symbol) for the association’s ...
Wednesday, January 23, 2013 at 6:09am

math
for the school play, child tickets cost $3 and adult tickets cost $5. The number of adult tickets sold was 20 more than the number of child tickets sold. If the total sales were $2540, how many adult tickets were sold?
Tuesday, January 22, 2013 at 10:04pm

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