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Post a New Question | Current Questions
biology
i posting this for my sister Shreya she be sick so i post her homework. these be microscope questions. where you be looking when you be amending objective lenses? and why you be looking there? what power of magnification u start on always. she wrote that be low power but how ...
physics
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 68.6° above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 26.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
Physics - 2-D kinematics
A soccer ball is kicked with an initial horizontal velocity of 20 m/s and an initial vertical velocity of 16 m/s. I've calculated: Initial Speed: 25.61 m/s Angle: 38.66 degrees Maximum Height it reaches: 13.06 m Distance kicked: 65.29m NOW I NEED: What is the speed of the ...
English
I left out these two sentences. Thank you very much for your cooperation. 1) Our school will be closed for two days due to heavy snow falls. 2) On Monday I'll ask the secretary for a copy of the school's prospect, which I will translate in Italian for you. 3) By the ...
English
Writeacher, I'll follow your advice. Can you check if everything is OK? 1) As I told you last Saturday, I asked my school's science teachers several times to prepare part D but they didn’t. 2) During the preliminary meeting they haven’t helped us at all ...
algebra
together, steve and tom sold 130 raffle tickets for their school. steve sold 14 more than three times as many tickets as tom. how many tickets did each boy sell
English
Could you please help me express sentence 1. We have to consider the fact that groups of 10 students will be working on biodiversity in each school of the three schools separately and at the end they will compare their results. 1) Task organization and information distribution...
Physics
A ball is thrown horizontally from the top of a building 21.6 m high. The ball strikes the ground at a point 123 m from the base of the building. Find the x component of its velocity just before it strikes the ground. Find the y component of its velocity just before it ...
Physics
In the vertical jump, Kobe Bryant starts from a crouch and jumps upward to reach as high as possible. Even the best athletes spend little more than 1.00 second in the air (their "hang time"). Treat Kobe as a particle and let ymax be his maximum height above the floor...
physics
The mass of 1 cubic meter of air at sea level is about 1.3kg. Hoe much does it weight in newtons? How much would a stack of 8000 such cubes weigh? If this total weight were all applied to an area of 1m^2, how much pressure would it produce on that surface? The answer should ...
english
Hello, I am doing grammar and I was wondering if you could correct my homework. Thanks. In each of the following sentences, identify each italicized phrase as prepositional, participial, gerund, infinitive, or appositive. 1. Now I would like to tell you about my sister ...
Science
Bobpursely, thank you for helping me! Our project involving three schools is about biodiversity in water. In particular, participating students will have to carry out a chemical and microbiological analyses of water in each school's local area : river water for us and the ...
English
Bobpursely, thank you for helping me! Our project involving three schools is about biodiversity in water. In particular, participating students will have to carry out a chemical and microbiological analyses of water in each school's local area : river water for us and the ...
English
In point 4 I wanted to be more precise. What kind of texts will they have to write when reporting about their experiments, exchanging information with partner students per email or intepreting data? Please, help me!! 4) write a wide range of different types of writing ...
English 7 - Journal Entry Check
English Homework: Journal Entry Due Tomorrow Topic - Dicuss a time when you made a decison to do something (Determination), and perservered as a result. Please check my journal entry to see if it's good. Determination When I first came in the 7th grade at (school name), I ...
English
Writeacher, can you please tell me if I should group the linguistic objectives differently? Being a teacher yourself, could you please tell me if you would include other objectives when considering the study of a scientific subject in a foreign language? Thank you. Linguistic ...
Physics
A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
physics
The mass of 1 cubic meter of air at sea level is about 1.3kg. Hoe much does it weight in newtons? How much would a stack of 8000 such cubes weigh? If this total weight were all applied to an area of 1m^2, how much pressure would it produce on that surface? The answer should ...
physics
A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
physics
A falling stone takes 0.320 s to pass a window 2.30 m high. From what height (in meters) above the top of the window did the stone fall? I have tried this so many times and I cannot figure it out.
Physics
A ball is thrown upward from the ground with an initial speed of 23.1 m/s; at the same instant, a ball is dropped from a building 15.0 m high. After how long will the balls be at the same height?
Physics High School Rotational Motion
A wheel has a radius of 2.2 m. How far (path length) does a point on the circumference travel if the wheel is rotated through an angle of 190 rad? Answer in units of m
physics
A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
Chemistry University One
Is it possible for a calorimeter to have a high specific heat capacity, such as 2780J? I don't know if that is a reasonable answer.
Math
Rashad awoke at 6:45A.M. He spent a half hour taking a bath and getting dressed. He took 20 minutes to eat his breakfast and another quarter of an hour to ride his bike to school. What time did Rashad arrive at school? A.7:55A.M. B.7:45A.M. C.7:50A.M. D.7:40A.M. C?
English
I urgently need you to check these two sentences!! Thank you. 1) Do you need a detailed presentation of the school? 2) The other schools I worked for have always paid (rewarded/remunerated) both my involvement and transtlation activities (?) before and during a school exchange...
physics
A 45.5-g Super Ball traveling at 29.0 m/s bounces off a brick wall and rebounds at 19.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.15 ms, what is the magnitude of the average acceleration of the ball during this time interval?
English
Here is the second part of the project I urgently need to prepare on biodiversity. Please, I don't know what else to include. What impact do you expect partnership activities to have on persons and on the participating institutions? 1) The project will develop ...
Human Services
Creating a Budget Various budget approaches play an important role in resource allocation in human service organizations. You are the executive director for a local government workforce agency that focuses on providing career- and work-related skills. The Department of ...
math
Brittney is making a graph to compare the average high temperature in five cities. Which type of graph would be the most appropriate for Brittney to use?
math
A tree cast a 24 foot shadow at the same time a fence post 5 feet high cast a 4 foot shadow. How tall is the tree?
physics
A 60kg boy is riding his bike to school. His acceleration is 15 m/sec^2. Determine the magnitude of the force he is exerting.
english
I really need someone to help with errors. Teenagers and Driving: A Dangerous Combination Teenagers and vehicles can be a very dangerous combination. Teenage drivers are four times more likely to be involved in a motor vehicle crash than drivers of older age. According to the ...
8th grade math
1. The area shown below will be used for the elementary school playground. What is this area? How much fencing is needed to enclose the playground? Use 3.14 for the value of pi. d= 4 yds for the half circle, w=10 yds. for width of rectangle, and length = 4 yds. and 3 yds for ...
English
I just wanted to know if you have the tradition of "the kindly old woman" in America and if yes, what do you call her? 1) On Epiphany Eve the "kindly old woman" brought me many sweets and a pair of earings. 2) On 8 January I went back to school as all my ...
Math
If teacher x gives a pop quiz on Monday and then every five classes, and teacher y gives a pop quiz on Monday and then every six days, how many school days will it be until both give quizzes on the same school day
English
I didn't notice the spelling mistake. Could you please check which alternative is best? Thank you. 1) I did't manage to finish my homework before the beginning of the school. 2) On 30 December I was with a group of friends. (I spent New Year's Eve with a group of ...
physics
A falling stone takes 0.320 s to pass a window 2.30 m high. From what height (in meters) above the top of the window did the stone fall?
English
I'm posting you the ones I'm really unsure of. 1) The day after their visit I started my homework and I did't manage to finish it before the beginning of the school. 2) On 30 December I was with a group of friends. I spent the rest of my holiday meeting my friends...
English
I left out the following sentences.Thank you very much. 1) The day after Christmas my uncles from Liguria visited us. 2) The day after their visit I started my homework and I did't manage to finish it before the beginning of the school. 3) On 30 December I was with a group...
physics
At high speeds, a particular automobile is capable of an acceleration of about 0.510 m/s^2. At this rate, how long (in seconds) does it take to accelerate from 95.0 km/hr to 101 km/hr?
physics
If someone kicks a soccer ball across a flat parking lot with an initial velocity of 19.0m/s @ 19 degrees, how long will the soccer ball be in flight and how high above its launch point will the ball go? What would be the x and y components of this velocity at t=0.
Physics
High-voltage power lines are a familiar sight throughout the country. The aluminum (resistivity = 2.82 x 10-8 m) wire used for some of these lines has a cross-sectional area of 4.4 x 10-4 m2. What is the resistance of 12 kilometers of this wire?
physics
a 50kg brick bounces with 98% efficiency when droped from a 10 meter ledge. 1.how much energy does it have at the top of the bounce? 2.how high will it bounce?
Child development
What interesting materials and experiences might promote cognitive and language growth in pre-school age children?
English
I left out the following sentences. Thank you very much for helping me. 1) As for our Comenius project on biodiversity in water, I'm attaching a copy of the European module the coordinating school has to fill in by 21 February. 2) Do you think you could help the German ...
English
Could you please check the following sentences, please? Thank you. 1)I'm still waiting to receive an answer from the principal of the German school to see if they are willing to accept your school in our Comenius partership. 2) In any case, our science teachers are really ...
Math
If 72% of Americans have straight hair, 76% have brown eyes, 87% are high school graduates, and 88% are less than 6 feet tall, what is the minimum percentage of Americans who have all four attributes?
sets
in a school, 37% of the pupils study principle of accounts and 28% study principal of business. if 15% study both business subjects what percentage of the pupils do not study neither, study P.O.B only and study P.O.A only
physics
Can anyone explain this to me? Is it correct to say that the difference in the patterns produced by monochromatic and white light is caused by the fact that monochromatic light waves interfere with each other when they pass through a diffraction grating,while the rays of white...
english/ help rewording a paragraph :)
Hello! I was wondering if anyone could kind of re word this for me? I'm going through an essay that I've just finished writing up, and I was hoping that this part could be reworded? Anyways, thank you ahead of time! :) Going to school where personal image is a big part...
ELA
Find the prepositional phrase in each sentence 1. There was a town that did without television. Answer:without television 2. Most people in town stopped watching TV. Answer:in the town 3. They did not watch television for a whole week. Answer:for a whole week 4. During that ...
physics
You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window (0.86 m high, 2.0 m wide) in your compartment, the train is moving to ...
business managment
1. In a _______, consumers ultimately decide what should be produced. A. macroeconomic system C. free market system B. socialist economy D. command economy 2. Efficiency can best be defined as A. the amount of output generated in a given amount of time. B. producing items ...
college algebra
on a ship, the distance d that you can see to the horizon is given by d=1.5 square root h, where h is the height of your eye measured in feet above sea level and d is measured in miles. How high is the eye level of a navigator who can see 16 miles to the horizon? Round your ...
Business management class
here is all my questions with answers.. just to double check my work.. Sue can u please check!! thanks u for all the help!! 1. In a _______, consumers ultimately decide what should be produced. A. macroeconomic system C. free market system B. socialist economy D. command ...
Business management class
1. Americans are often accused of being ethnocentric. This means that A. Americans welcome diversity in their work force. B. Americans feel their culture is superior to other cultures. C. U.S. firms are actively seeking international markets. D. U.S. businesses are pursuing a ...
English
Can you please check my sentences together with a few more points I need to include in my project work? 1) I really hope you had a good journey back home. All our teachers have been enthusiastic about your visit and your principal's words about the project! 2) They will ...
math
126 books were donated to the school. there are seven classes and each will get an equal number of the books for its classroom library. how many books will each classroom get?
Chemistry
A robust first grader goes for swimming lessons three times a week, and he enjoys it thoroughly. During the first week of December, he develops an upper respiratory infection, starts coughing continuously, and has a high fever of 39°C. His condition remains the same even ...
Physical Science
If there were no air resistance, a quarter dropped from the top of New York's empire state building would reach the ground 9.6 seconds later, what would its speed be? How high is the building?
English
Thank you. Here are the sentences again for you to check At the end of the two-year program students should be able to... 1)maximize their use (or upgrade their knowledge) of a wide range of Information and Communication technologies (I want to make it more specific: how do ...
English
Here is the second part I need you to check. Thank you. 1)To maximize the use of a wide range of Information and Communication technologies (I want to make it more specific: how do modern students communicate?) as well as of English as a medium of communication 2)To facilitate...
English
As promised, I'm posting you the 5 sentences to be checked. 1) Thank you very much for helping me with my school search. 2) Your colleague wrote in her blog that the involved students come from the fifh and sixth classes. Actually, they are between sixteen and seventeen ...
algebra
the number of people the school can hold is at most 200. how can i present this in inequality is this correct x=<200
Physics
A high diver of mass 65.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. If her downward motion is stopped 2.30 s after her feet first touch the water, what average upward force did the water exert on her? I'm not sure how ...
physics
A person lifts a 199 Newton stack of books 12 meters high in 7 seconds. How much power is used to lift the books?
English
Can you please check these sentences? I find it difficult to rephrase to sentences. Thank you. 1) thank you very much for helping me with my school search. 2) In the blog I noticed that your colleague wrote that the involved students come from the fifh and sixth classes. 3) ...
2nd Semester
2nd Semester begins tomorrow and I won't be having art anymore I'm having facs. So is there any useful tips you teachers would like to give me to get me a head start next semester. there are tons of things next semester passport day at my school, exams, fun events, ...
Chemistry
1) Which of the following properties of water can be explained using hydrogen bonding arguments? 1. its ability to dissolve most ionic compounds. 2. its high boiling point. 3. its low vapor pressure a) only 1 or only 2 or only 3 b) 1 and 2 only c) 1 and 3 only d) 2 and 3 only...
math
tickets to a school play cost 1.5 in advance and 2.0 at gate. by selling all 200 tickets students got $360. how many tickets did they sell in advance?
Chemistry(Please check)
1) Which of the following properties of water can be explained using hydrogen bonding arguments? 1. its ability to dissolve most ionic compounds. 2. its high boiling point. 3. its low vapor pressure a) only 1 or only 2 or only 3 b) 1 and 2 only c) 1 and 3 only d) 2 and 3 only ...
Physics
A ball is thrown straight up from the ground with an initial velocity of 30.4 m/s; at the same instant, a ball is dropped from the roof of a building 21.1 m high. After how long will the balls be at the same height? The acceleration of gravity is 10 m/s2. Answer in units of s
English
I really need help with my writing. I need some to proof read a paper that I wrote. Two Career Families versus One Career Families Back in the early days the traditional working family was a one career family. The roles of husband and wife were defined and everyone did as they...
Math
When the band traveled to the latest competition, they left school on the bus at 9:30 am. They arrived in Astoria and practiced until 7:15pm. How long did they spend traveling and practicing that day? What kind of math do I need to do to see how long they practiced?
statistics
A survey about the art program at a school found that 250 students wanted an after-school art program, 150 students wanted art classes during the day, and 100 students thought that the school should have no art program. If a circle graph were made from this data, what would be...
Physics
A child tosses a baseball to his siter, who is hanging out the window of an apartment building. The ball's initial velocity is 18 m/s upward. (Ignore any horizontal motion) 1. How long will it take for the ball to reach its maximum height? 2. The sister catches the ball 3....
english / compare & contrast essay
Hey guys!! I was hoping someone could critique/view/edit me essay for me? :) It's a compare and contrast essay on Mother Tongue by Amy Tan, and How to Tame a Wild Tongue by Gloria Anzaldúa. I'm a hs junior but i'm also taking college english~critical writing...
Calculus (Vector-Valued Functions)
"a ball is thrown horizontally from the top of a cliff 256 ft high with an intial speed of 50 ft/sec. find the time of flight of the ball and the distance from thr base of the cliff to the point where the ball lands"
geometry
if I want a ramp with a 30 foot length, and a 5 percent up grade starting at 0, how high will the tall end be?
English
I left out a sentence, too. Thank you very, very much 1) In particular, your school would analyze the water in your local area (the results of which will then be exchanged through an E-twinning platform set up by the German schoool) and you would also help the Italian science ...
English
Writeacher, this is my last doubt! As I couldn't find anything on the objectives of a project on the biodiversity of water in English I'll have to refer to these objectives which refer to soil. Do you think you can help me? The topic must be water (rivers, ocean etc) ...
English
Here are the last sentences. Thank you very much. 1) Ten students and two teachers (from each of the four schools) will take part in the mobilities of this two-year project. 2) The teachers and the students involved will be chosen by each school discretionally if the project ...
English
Sentence 3 was incomplete. Can you please help me to express it better? Thank you 3) The final product of our research will be both a DVD and a film. The French school has the instruments (?) to make a film out of our common experiences. (The students will decide how to make ...
English
Thank you very much! Here are the last sentences I need you to check. 1) Could you also email (to my school) a short presentation of your school, explaining which scientific subjects your students learn and if they learn them in English? 2) (I need to determine which ...
English
I don't know exactly how to express these concepts. I urgently need to express them in English. Please, help me! 1) Tomorrow I will tell both our French and German partners that your school is going to cooperate with us on the project. 2) We have agreed on a common theme ...
psychology
what school of thought would best describe rioting behavior after a large sporting event
Physics
Which of the following desceriptions about ideal gas is/are correct? 1)An ideal gas obeys Boyle's law only under high temp and low pressure 2)the molecules of an ideal gas have no size 3)the internal energy of an ideal gas consists of kinetic energy only A.1)only B.3)only ...
Physics
is it right that ideal gas only obey the boyles law under high temp and low pressure?
physics
A cat that has a mass of 6 kg climbs to the top of a tree that is 20 m high. How much potential energy does the cat have at the top of the tree?
physics
Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed to collide into a tumor, killing the malignant cells. Suppose a proton accelerator is 4.21 m long and must accelerate protons from rest to a speed of ...
Science/English/Math
I was selected to the Math Academy at my school. I have it every wednesday after school. They are going to prepare me for the NYS Math Exam!!! :) I got a 80 on my Science Quarterly Exam!!!! :) (i didn't know some of my friends and other people were saying good job laruen ...
ELA
They gave us a paper where we have to correct the mistakes. My twin cousins I have identical twin cousins, Joe and John. They look exactly alike except that Joe has a tiny birthmark under his chin. Unless you look very closely,youd miss it. Both have straight, dark brown hair...
English
I urgently need you to check the agenda again: Agenda of the Comenius project 1) 27 January 2012 Greeting of the principal of "... high school" (to the German and French schools) in the teachers' library. 9 pm -12pm Visit of the school (and its laboratories) ...
Physics
The rock reaches a maximum height of 20.4 m above the top of the cliff before falling to the base of the cliff, landing 5.56 s after it was thrown. How high is the cliff?
English
I left out these sentences. Could you please check them? Thank you. 1) We are delighted to welcome today representatives from the French and the German school with whom we will embark (work?) on our Comenius project. 2) We have searched with difficulty to find two schools that...
central highschool
ken's cartoons for the school newspaper, but they wouldn't be good
physics
A storage tank of negligible mass and 30 m high is filled with gasoline
Math
The number of library books in a school increased by 20% after it bought new books in may. The number increased by another 20% after a bookstore donated 300 books in June. Find the number of books in the library before it bought new books in May.
English
I left out these sentences. Thank you very much for your cooperation. 1) We would eventually like to build on not only the sharing of information between schools but on building an eventual student exchange programme between the schools. 2) This project is also important to ...
English
You are perfectly right. I wanted to add these sentences, too. I really need your revision. 1) We must remember past atrocities but at the same time we must do something against them. It is for this reason that our school has decided to embark on a European project involving a...
English
I urgently need you to check these sentences on the Holocaust. Thank you. 1) 27 January was chosen as the date for Holocaust Memorial Day because it was on this date in 1945 that the largest Nazi killing(?) camp Auschwitz-Birkenau was liberated. 2) On this day our school ...
Physics
is that right ideal gas only obey the boyles law under high temp and low pressure?
English
Could you please check this? Thank you. 1) My English colleague will be at school this afternoon to welcome the French delegation. As I told you, I have afternoon lessons and then I'll be busy picking up my child from school.
Science/English
writeacher, I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? The project is addressed to 16-year-old students with an intermediate level of ...
English
I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? I wrote them but I need your check: Biodiversity in water and waterways in our local area. ...
harris middle school
a bag contains 5 red marbles,4 white marbles, and 9 blue marbles. you pick a marble without looking. find the probability of drawing a white marble.
Physics
Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed to collide into a tumor, killing the malignant cells. Suppose a proton accelerator is 4.21 m long and must accelerate protons from rest to a speed of ...
Physics
Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed to collide into a tumor, killing the malignant cells. Suppose a proton accelerator is 4.21 m long and must accelerate protons from rest to a speed of ...
math
Mr. Garcia is going to pain a mural on one wall. There is a rectangular shaped window that is 24 in. wide and 36 in. high on the wall. How many square feet of the wall will be painted?
please check
1. Which of the following statements regarding stress and hair loss is NOT true? a. The best treatments for stress induced hair loss are to improve sleep quality, manage stress, and have a healthy dietary intake. b. Stress may cause hair to fall out as a result of destroyed ...
English
I'm posting you five sentences but I really don't know if all the words (in parentheses) are possible. 1) .... a green-and-white kilt (?), a white, short-sleeved shirt and a pair of knee-high socks. He is carrying a very high and heavy log (not trunk) with both hands. ...
English
I left out the following sentences. Can you please have a look at them? 1) The man on the left is wearing a green-and-white kilt, a short-sleeved shirt and a pair of knee-high socks. He is carrying a very high and heavy log (not trunk) with both hands. His clothes are very ...
math
In a basketball free-throw contest held at the high school, Rudy made 4 out 5 free throws. At this rate, how many free throws could he expect to make in 25 tries?
English
I urgently need you to check these sentences. Thank you very much. 1) I received the address of your school from a university student I met during my summer vacation in Madrid. 2) We are currently looking for a school interested in joining us in a multilateral Comenius ...
Business Research
1. You are the head researcher on a study that is tracking vocational preferences from high school through middle adulthood. List the steps you would take in selecting the sample to be used in the study. 2. A researcher decides to give a questionnaire on television watching ...
High Point
a sign is in the shape of rhombus with a 60 degree angle and sides of 9cm long. Find its are to nearest tenth?
Physics
A passenger in a helicopter traveling upwards at 17 m/s accidentally drops a package out the window. If it takes 9 seconds to reach the ground, how high to the nearest meter was the helicopter when the package was dropped?To the nearest meter what was the maximum height of the...
English
Writeacher, I need your help to write the English translation of the speech my principal will hold when meeting both the German and the French principals. Can you suggest to me "formal" sentences he will probably use when welcoming them, showing them our schooland ...
Math
The number of library books in a school increased by 20% after it bought new books in may. The number increased by another 20% after a bookstore donated 300 books in June. Find the number of books in the library before it bought new books in May.
Math
A model rocket is shot straight up from the roof of a school. The height at any time t is approximated by the model h=-t^2+3t+28, where h is the height in meters and t is the time in seconds. When does the rocket hit the ground?
physics
A 42.0 kg girl jumps on a trampoline. After stretching to its bottom limit, the trampoline exerts an average upward force on the girl over a displacement of 0.50 m. During the time that the trampoline is pushing her up, she experiences an average acceleration of 65 m/s^2. Her ...
English
I urgently need you to check this part for me. Thank you very much for your cooperation. 1) I go on the internet every day to conduct research on various school subjects. I normally go on google as a search engine to find answers to my homework. 2) I usually spend two hours on...
physics
A stone is launched straight up by a slingshot. Its initial speed is 20.1 m/s and the stone is 1.30 m above the ground when launched. Assume g = 9.80 m/s2. (a) How high above the ground does the stone rise? (b) How much time elapses before the stone hits the ground?
Math - solving quadratic equations with factoring
A person jumps off a 20m high cliff into water below. The height of the person above the ground at time t 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?
English
I urgenlty need you to chekc these sentences. Thank you. 1) As you are a scholar with an in-depth knowledge of Clil within a Comenius project, I would like to have your opinion about the objectives we should include in the project. 2) Could you let us have a look at your ...
Physics
A ball is thrown horizontally from the roof of a building 29.7 m high at 39.6 m/s. (a) What is the vertical velocity of the ball when it lands? (use down as the positive y-axis direction)b) What is the ball’s total velocity (speed and direction) when it lands?
Economics
11. Often, the _______ the risk, the _______ the rewards. A. higher; higher C. higher; lower B. lower; higher D. faster; quicker 12. When the government of Indonesia imposes a tax on imported electronics products to help its young electronics industry compete in the global ...
English
I urgently need you to check these sentences. Thank you. 1) I'm pleased to get to know that the French delegation will be arriving on 26. January. On that day I have got afternoon lessons till 3.15 pm. 2) The school administration office will be opened until late in the ...
English
Sentence number 5 was incomplete. I think I should leave out "in part two". I urgently need you to have a look at these other sentences, too 1) I hope you can help me find a Scottish school which is interested in a partnership with our school. 2) In the mail I sent ...
physics
A ball is thrown vertically upward with a speed of +10.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is its velocity when it returns ...
physics
A ball is thrown vertically upward with a speed of +10.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is its velocity when it returns ...
Physics
A 57-kg lead ball is dropped from the leaning tower of Pisa. The tower is 56 m high. (b) What is the speed of the ball after it has traveled 2.5 m downward?
winter springs high
how do i solve 2x+7y=-20 and y=3x+7
physics
During a Science day learners use a plastic cold drink bottle as a rocket.They use a bicycle pump to increas the presure inside the bottle.When the presure becomes high enough,the bottle is launched vertically upwards into the air.The bottle returns to its original position ...
Math
Ella reports that the height of a tree in her school yard is 3.8m. If ella measured the tree to the nearest hundredth of a metre, what is the least height she might report?
English
I urgently need to write a short email to a scholar specialized in Comenius projects. After presenting myself and the school I'd like to include this: 1) As you are a scholar with an in-depth knowledge of Clil within a Comenius project, I would like to have your personal ...
math
The height of a ball that was batted into the air at 150 feet per second is a function of t, the time in seconds after the ball was hit. The height is determined by subtracting 15 times the square of t from 150 times t. Which equation can be used to find t when the ball is 300...
English102
Could someone take a look at my sentence outline for my english class, I have been working on this for awhile and I do not know why this is so hard for me to get. Hopefully I am getting it a little betternow, thanks for all the help. Thesis Statement: Bullies have found it ...
english
I have to write a compare contrast essay does this sound ok? One of the toughest decisions that you are going to face as a parent is to decide where to send your children to get their education. There are many reasons why public schools are academically superior to home ...
statistics
Can someone guide me on how to solve this problem: A sample of 52 night students ages is obtained in order to estimate the mean age of night school students. sample mean = 25.9 years. the population variance is 23. Give a point estimate for the mean. Find the 95% confidence ...
Literacy
Efficiency can best be defined as A. the amount of output generated in a given amount of time. B. producing items using the least amount of resources. C. using high-tech equipment on a job. D. producing as much as you can as fast as you can, regardless of cost. my answer is B
Math
6.An aqaurium is 80cm long, 40cm wide, and 40cm high. What is its volume? I got 128,000cm3 One cubic centimeter (cm3) holds 1 milliliter of water. 1,000 cm3 hold 1 liter. How many mL will the tank in problem 6 hold? How many liters? How do I find out how many mL and liters ...
Math
An aqaurium is 80cm long, 40cm wide, and 40cm high. What is its volume? I got 128,000cm3 One cubic centimeter (cm3) holds 1 milliliter of water. 1,000 cm3 hold 1 liter. How many mL will the tank in problem 6 hold? How many liters?
ENG102
Hello, I am doing a Sentence outline for Engish102 and I just need to know if I am on the right track with this, it is a little confusing for me, so any feedback would be great. Thesis Statement: The research and effects that links cyber bullying with teachers, parents and ...
earth
Body on surface of earth weighs 400 lb. Radius of earth is about 4000miles. If same body were placed on 4000 mile high tower, what would its weight be
Math
for every girl taking classes at the school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a propotion to predict the number of boys taking classes at the school.
physics
Assume your mass is 80 kg. The acceleration due to gravity is 9.8 m/s 2 . How much work against gravity do you do when you climb a flight of stairs 2.3 m high?
French
Can someone please help edit my French? My French: Quelles matières étudiez-vous cette année ? Moi, je fais deux les maths, la chimie, la physique, l’anglais et le français. Je n’aime pas les maths parce que il y a beaucoup des devoirs ...
physics
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 68.0° above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 26.5 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
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