Wednesday
October 1, 2014

Posts by MIKE


Total # Posts: 3,171

calculus
solve the initial value problem by seperation of variables du/dt=2t+sec2t/2u, u(0)=-5
March 18, 2011

calculus
solve the initial value problem by separation of variables 8. dy/dx=x+1/xy, x>0, y(1)=-4
March 18, 2011

English
Can you check if my instructions on how to do the washing and the washing-up are correct? Thank you very much. When you do the washing, you sort the clothes, put them into the washing machine, insert the washing powder into the drawer or plastic container, start the washing ...
March 18, 2011

English
Is that correct to say: If he were she (or in her place) , h'd get a racer? Thank you very much fr your help and information!
March 17, 2011

English
Can you please help me complete the fill-in-the-blank activity, please? I'm not sure if the rules in America are the same as in England. 1)You can get a part-time job when you are 15 years old. You can ride a 50cc moped when you are 14 years old. You can't leave school...
March 17, 2011

English
I left out the questionnaire I really need you to check. I have to refer to what happens in America. 1)You can get a part-time job when you are..You can ride a 50cc moped when you are......You can't leave school until you are......You must be ......to join the army. You ...
March 17, 2011

English
I forgot to include the following words. Thank you.I need help for the questionnaire, too 1)Which household chores are most popular among American teenagers? Can you see if I wrote them right? (put the rubbish out, sweep and mop the floors, take the bed linen off the bed, wash...
March 17, 2011

Engish
I'm finding it difficult to write the instructions for a strawberry salad. (Can you say it in English)? Thank you very much for your help. 1) Remember the most common non-reflexive verbs in English through this story. 2) Which are considered as low marks in the USA? Does &...
March 17, 2011

English
Can you please help me formulate the questions better and answer the last two yourself? Thank you very much. 1) I quarrelled (argued) with my best friend because I refused to let her copy the maths test (from mine?). 2) She is cross/furious with me now. I'm going to make ...
March 17, 2011

English
Can you please help check these sentences I wrote about adjective and past participles. Thank you. 1)I'm as pleased as Punch. 2) Your project is excellent.I'm pleased/happy/satisfied/content (are they all synonyms, did I include all?). 3) This song is so boring.I'm...
March 17, 2011

English
Can you please check these ideas on stress and young people, please? Thank you vey much for helping me finding an excellent site on science!! 1) The two things teenagers are most stressed about are how to make new friends and how to improve their school performances. 2) Their ...
March 17, 2011

English
Though I specialized in Germanic languages, I need to present (in a very simple way using a very simple language) some scientific topics in English to Italian 18-year-old-students (studying applied sciences) whose English is very poor. I'm seeking internet sites where ...
March 17, 2011

English
Thank you very much for your help. Here are some more sentences I'd like you to check. (I included four sentences on how to make wine) 1)This wine is made from Nebbiolo grapes, grown exclusively on the slopes (vineyards?) of these hills. 2)These veneyards have been ...
March 16, 2011

English
Can you check the following sentences, on reflexive verbs, please? Thank you. 1) I used to live on my own (better than by myself) in a one-room apartment. One morning, I woke up at 6 a.m. then I got up and went into the bathroom. 2) I got washed and dressed and then I rushed ...
March 16, 2011

accounting
True or false ? The columns of the employee earnings record consist of the amount columns in a payroll register and accumulated earnings column? Can you help me answer this question ? thank you.
March 15, 2011

Chemistry
Which indicator can be used to detect the endpoint of a species that has Ka=1.1 x 10E-8? I used phenolphtalein? is that correct?
March 15, 2011

English
Are these last two senteces correct Do you have to take a make-up exam if you fail a subject in June' Do you know what festivity is celebrated on next 16 MArch in Italy It has been 150 since the Italian republic was founded.
March 14, 2011

Health
in class, we have to do a presentation on something health related . do you think i should talk about where babies come from ? i'm in 6th grade . thanks
March 14, 2011

English
I have some doubts on how to rephrase a few sentences on Dr. Jekyll and Mr Hyde. I hope you can have a look at them. 1)The story is told from the point of view of Mr. Utterson, a London lawyer and friend to the brilliant scientist Dr Henry Jekyll. 2) After relating a ...
March 14, 2011

English
Thank you very much. Here are some more questions I need you to check. Choose the topics on the basis of your own preferences and then interview your American twinned students. Write their answers on the sheet provided by your teacher. Be prepared to be tested on their answers...
March 14, 2011

English
I forgot to include these other questions. I'm going to arrange them according to their topic (school, sports activities, travelling (?), clothes (?), student exchange programm, family, food). Do you think the topics are all right? 1) Do you have a report card on which ...
March 14, 2011

English
Thank you very much for helping me improve my questions. What do you think of this activity? Can you think of any other questions to include? 1) Do you support any charities? 2) What clothes are fashionable among teenagers in America these days (??)? 3)Do you know the name of ...
March 14, 2011

English
The questions I selected are as follows. I'd like you to improve my vocabulary. 1) Why did you decide to join the school/or students' exchange? 2) What do you expect from it? Can you say anything in Italian? If yes, where did you learn it? 3) Can you get any Italian ...
March 14, 2011

English
1) Four American 17-year-old students will be in class with us tomorrow for an hour. 2) I need to prepare some activities to entertain them. They can't speak any Italian so the activities must be English. 3) I was thinking of preparing a questionnaire myself about their ...
March 14, 2011

chemistry
In a chemical reaction, substance A combines with substance B to form substance Y. At the start of the reaction, the quantity of A present is a grams, and the quantity of B present is b grams. Assume a> and <img src=. At time t seconds after the start of the reaction, ...
March 14, 2011

English
I realized I left out a paragraph for you to check. Thank you. In particular, can you say a bike shop, enthusiastic about? 1) Johnny has got a headache and he can’t train. Storm is training for the triathlon alone. 2) Her times are fast but she finds training alone boring...
March 13, 2011

English
Two very last doubts. Do you say "the Augustan or The Augustans were interested in real life". He admitted it had been him who ate all the cake./He admitted eating all the cake. Are they both correct?
March 13, 2011

English
These are the very last sentences. I'm unsure whether to use she or her (in sentence 6). Do you say "found out" or found/discovered in sentence 2? Is it possible to turn this sentence into the passive? "She has been doing the washing for two hours". The...
March 13, 2011

English
I forgot to ask you if the sentences I sent you before were gamatically correct. Thank you. In particular the use of "through" in q. 1, "as for" in q. 4. 1) Time is personified through the use of a capital letter in line 9, through the use of verbs ...
March 13, 2011

English
Can you check these sentences for me, please? I really need to know if they are possible because I need to meet some American teachers tomorrow. 1)How do you call the teacher who is at the head of the English Department in a high school? 2) She has organised a variety of ...
March 13, 2011

English
Can you please check if everything is correct now? I made the chages you told me. I have one more doubt in n. 3: Can I used "bored with" instead of bored by? 1)She was really upset about her uncle’s death. 2)She was embarrassed about the way her father treated ...
March 13, 2011

physics
A pion has rest energy 135MeV. It decays into two gamma rays that travel at the speed of light. A pion moving through the lab frame at v=0.98c decays into two gamma rays of equal energies, making equal angles θ with the direction of motion. Find the angle θ and the ...
March 13, 2011

English
Can you please tell me if the tense choice is correct in this paragraph? Tahnk you. Two verbs in brackets. 1) Time is personified through the use of a capital letter in line 9, through the use of verbs referring to human action (line 10: beding, come) and finally through the ...
March 13, 2011

English
I forgot to include the following statements. I hope you can have a look at them, too 1) embarrassed about/at (are the prepositions intercheangable?) I was embarrassed about how untidy my room was/at (about?) having to ask for money/ to ask for money. 2)I was cross/annoyed/...
March 13, 2011

English
Thank you very much for your correction. I need to know which prepositions are possible after certain adjectives of emotions. I hope you can help me. 1)disgusted at/by/with (I need to provide examples). I was disgusted at/about/ by (?) the news of the Prime Minister's love...
March 13, 2011

English
I forgot to include the other sonnet (N. 116). I find it hard to rephrase the last couplet. 1)Sonnets 116 is about love in its most ideal form. True love is to be based on mutual trust and understanding. 2) True love doesn’t change when the situation changes or with the ...
March 13, 2011

English
Thank you very much for all your information. I'm finding it difficult to rephrase two sonnets by Shakespeare, especially number 130 "To my Mistress' eyes". 1) The sonnet is Shakespeare's tribute to his uncomely mistress, commonly referred to asthe dark ...
March 13, 2011

English
Can you please check this paragraph I summarized myself from an internet site called euronews. I think it can be useful to revise passive tenses and, of course, to keep up to date with what happens in Japan. 1.A 10-meter tsunami slammed into the Japanese city of Sendai killing...
March 13, 2011

Statistics- Help
I need help with this problem for school. For the first one i got .3758 and second 1.6, but i don't think they are right. My calculations are off It is known that about 20% of car insurance policies include emergency road service. Suppose we randomly select 10 car ...
March 12, 2011

English
I forgot to include these last two sentences. Thank you very much. 1.It fostered individualism, and wasn’t concerned with abstractions such as social justice, equality or fraternity. 2) Liberal thought influenced the new view of the world and affirmed free-will, salvation...
March 10, 2011

English
These are a few sentences on the Augustan Age I'd like you to check. I'm unsure about punctuation and word choice. 1. The 18th century England was called Augustan after the period of Roman history which had achieved political stability and power as well as a ...
March 10, 2011

English
I forgot to include these last two sentences. I hope you can look at them. 1) Macduff wasn't born to a woman (I mean naturally) since he was torn from his mother's womb. 2) My favourite programme is called “Year zero” and is broadcast on TV every Thursday ...
March 10, 2011

English
I’m having problems in paraphrasing the song “Never Ever” by All Saints. Can you check it, please? I included a sentence on the use of “propose” and one concerning the use of reflexive pronouns. 1) Storm is a bit ashamed of herself. She feels sorry for...
March 10, 2011

English
I just need to know if zapping, channel surfing are synonyms, if subscribe is followed by to, and if propose could be followed the indirect object. I included a few more sentences I really don't know if they are possible. 1) I hate people zapping (channel surfing, channel-...
March 10, 2011

English
I just need to know if the verb “prophesy” can be follow by to (ex. to Macbeth), if “army” is considered as a collective noun (plural), if the word devil is used with the definitive article and if the expression “to be born by “ is correct. I also...
March 10, 2011

English
I forgot to include the following sentences. 1) I hate people zapping (channel surfing, channel-hopping) when watching TV. 2)We bought a Freeview box an a satellite dish to watch (free) satellite channels around the world. 3) We also subscribed (?) to Sky to watch the national...
March 10, 2011

English
Can you please check if these sentences are correct? Thank you. 1) The witches are unable to distinguish between opposites. For them fair is foul and foul is fair. 2)They are able to predict the future and are generally associated with the devil. 3) First, they prophesy (to ...
March 10, 2011

English
Can you please check my last sentences. I really need to know which expressions are best. Thank you. 1)He studied at Eton college, where misbehaved students used to be beaten. 2) On his return to London he experienced poverty. 3) At the time (not "in this period") he...
March 9, 2011

English
I forgot to include these last two sentences. 1) Slaves worked either on sugar cane plantations (better of sugar cane) or in their masters' houses. If they rebelled, they could have an ear cut off or be killed. 2) For them the only way to escap ws the underground railroad ...
March 9, 2011

English
I'm finding it dfficult to check a few more sentences. These are the last on this theme. Thank you. 1)He studied at Eton college, where misbehaved students used to be beaten. 2) On his return to London he experienced poverty 3) At the time (not "in this period") ...
March 9, 2011

English
Thank you for improving my punctuation. Here are some more sentences I'm doubtful about.In particular, I find it difficult to express numbers 7 and 9. 1) However, while looking at the picture, a cry of pain and indignation comes from him. 2) He can see no change in it, ...
March 9, 2011

English
I checked the spelling mistakes and I reworded some of the sentences. Can you please check them and tell me how I can improve them? Thank you. 1)Dorian throws himself on the sofa, and starts thinking of his past. He recognizes he has filled his mind with corruption, committed ...
March 9, 2011

English
I have a few more sentences on Dorian's death I'd like you to check. Thank you. 1)Dorian throws himself on the sofa and starts thinking of his past. He recognizes he has filled his mind with corruption, committed horrible crimes and has exerted an evil influence on ...
March 9, 2011

English
I forgot to include the following sentences. I hope you can have a look at them, too. 1) 1984 can be considered an anti-utopian novel, which shows Orwell's sympathy for all the people who were murdered and exhiliated in totalitarian dictatorships (?) in the first half of ...
March 9, 2011

English
I still have a few doubts. I hope you can have a look at them, too. 1) Winston is a thry-nine-year-old man characterized (?) by blonde hair and a ruddy complexion, caused by the use of blunt razor blades. 2) At the beginning of the book he enters his modes apartment, where the...
March 9, 2011

AP Physics
Gamma rays are high-energy electromagnetic radiation (photons) emitted in an attempt by the radionuclide to become stable, i.e., radioactive decay. Gamma rays have moderate-to-high penetrating power, are often able to penetrate deep into the body, and generally require some ...
March 9, 2011

English
Could you please check the correction of your first sentence? I included a few more sentences on Stevenson's novel. Could you please have a look at them? Thank you. 1 a) 1984 can be considered as anti-utopian novel. 1)The single dominant theme in Dr Jekyll and Mr Hyde is ...
March 9, 2011

English
Can you please check these five sentences for me I find it difficult to correct. 1)1984 can be considered (as) an anti-utopian novel because it provides the description of a society in which a totalitarian government controls any action of the people. 2)In this (?) state of ...
March 9, 2011

English
I forgot to include the following sentences. Thank you. 1) Forensic artists are also essential to catch criminals. They are required to possess two skills. 2) First, they need to have good interview skills as they have to talk to victims and listen to their descriptions. 3)...
March 8, 2011

English
Can you please check if these sentences are OK? Thank you. 1)Forensic science adopts different scientific methods to catch criminals. 2)In particular, scientists can examine a suspect’s fingerprints or check blood type. 3) They can also check teeth and look at dental ...
March 8, 2011

English
I forgot to include these 5 statements I still have doubts about. Thank you. 1) Since George Orwell was a child, he developed an independent-minded personality and then he professed (?) atheism and socialism. 2) He didn't accept the strict discipline imposed at Eton since...
March 8, 2011

English
Can you please tell me if the parts included in brackets are grammatically wrong? Thank you. 1) Slaves had to harvest and grow sugar cane (not sugar canes). 2) Slaves couldn’t speak their language, call themselves with their names or practice their religion because slave ...
March 7, 2011

English
Thank you very much for your help. I forgot to include the following stataments. 1) As he changed into Hyde, he experienced a sense of freedom in his increased wickedness. 2)He was physically smaller and younger because, up to that moment, the evil side of his nature had been ...
March 7, 2011

English
Can you please check these sentences on Dr. Jekyll and Mr. Hyde? Thank you. 1) In Chapter ten Dr. Jekyll came to the realization of the primitive duality of man (the human soul?). He admitted that man was not truly one but two. 2) He was sure that if he could separate his two...
March 7, 2011

English
I really have problems in correcting the grammar and choosing the proper synonyms in these sentences. I selected the six most difficult ones. 1) Their task was to grow and harvest sugar cane. In those profit-making enterprises a system of terrible punishments and rewards was ...
March 7, 2011

English
Thank you very much for your help. Here are some more sentences I'm not sure of. 1)Each South-American family owned more than twenty slaves on average. 2)Slaves were mostly needed to work on plantations. Their task was to grow and harvest sugar cane. In those profit-making...
March 7, 2011

English
Can you please help me check these sentences, please? Thank you. 1) Slaves were considered as animals: white slaves used to sell them by auction. 2) Furthermore, white slave owners imposed a system of punishment and reward (better: of punishments and rewards to keep the slaves...
March 7, 2011

English
I'm finding it difficult to correct these sentences. I hope you can help me check them.Thank you. 1)In 19th-century the greater part of black slaves was born in America though they were originally deported from West Africa. 2)They worked for white people as servants and ...
March 6, 2011

math
what is the next two fractions and the pattern is here is the fraction 1,1/4,1/9,1/10,_,_
March 5, 2011

English
Can you please check these sentences for me please? Thank you. 1 Puritans was the name given to the more (most?) extreme Protestants within the Church of England. 2)Charles I's reign was characterized by the continuous conflict with the Parliament. Puritans held a ...
March 4, 2011

Physics
A mechanic jacks up the front of a car to an angle of 6.2° with the horizontal in order to change the front tires. The car is 2.91 m long and has a mass of 1100 kg. Gravitational force acts at the center of mass, which is located 1.02 m from the front end. The rear wheels ...
March 3, 2011

English
Can you please tell me if the following expressions are possible? 1) Would it be all right with you if I got my book from the other room? I left it in my backpack. 2) Can you wipe the blackboard off? 3) You should return the book to the library in two week's time. 4) Can ...
March 3, 2011

English
Can you please check these sentences for me? Thank you. 1) Henry believes beauty to be not as superficial as thought. 2) He urges Dorian to enjoy his youth now that he can, while it won't last for ever. 3) He also urges him to give in to any kind of sensations forgetting ...
March 2, 2011

physics
How much exertion in pounds does it take a woman who weighs 115 pounds to push a cart that weighs 50 pounds?
March 1, 2011

math
Lisa. Has 8 shirts. One-fourth are dress shirts. One-half are school shirts. How many are dress shirts? How many shirts are school shirts?
February 28, 2011

English
I forgot to include these very last 2 sentences. I hope you can have a look at them, too. (I included a few phrases on grammmar, too). 1) The story is profoundly allegorical and it can be interpreted as a 19-th century version of the myth of Faust, who sells his soul to the ...
February 28, 2011

English
I included the ones I was really unsure of. Hopefully were the others possible! 1)He also produced a series of plays, among which The Importance of Being Earnest (1895) which became his masterpiece. 2.His novel was accused of immorality whereas his play of obscenity. In 1891 ...
February 28, 2011

English
I forgot to include these last sentences. I really hope you look at them, too. 1) Dorian and his pure, innocent appearance are symbols of bourgeois hypocrisy whereas the corrupting picture could be regarded as a symbol of the immorality of the Victorian middle class. 2) The ...
February 28, 2011

English
I made a few changes myself. Can you please tell me if everything is possible? 1)The Wildean dandy is on the one hand an aristocrat, who uses his wit to shock the others and on the other hand an individualist who seeks (demands) absolute freedom. 2) He devotes his life to ...
February 28, 2011

English
Thank you very much for your help. Here are some more sentences I'd like you to check. 1)The Wildean dandy is on the one hand an aristocrat, who uses his wit to shock the others and on the other hand an individualist who seeks (demands) absolute freedom. 2) He devotes his ...
February 28, 2011

English
Can you please check these sentences for me? Thank you. 1) He was born in Dublin in 1854. He studied at Trinity College and was later sent to Oxford, where he took a first-class degree in classics. 2) He became a disciple of Walter Pater, the theorist of Aestheticism, ...
February 28, 2011

Physics
Part 1 You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 10000 N on a cannon ball while the ball is in the barrel of the cannon. The length of the cannon barrel is 2.47 m and the cannon is aimed at a 42degrees angle from the ...
February 27, 2011

Physics
part 1 A 1760 kg car accelerates uniformly from rest to 8.8 m/s in 4.52 s. Find the work done on the car in this time. Answer in units of J. part 2 Find the average power delivered by the engine in the first 1.808 s. Answer in units of W. part 3 Find the instantaneous power ...
February 27, 2011

Physics
part 1 A 1760 kg car accelerates uniformly from rest to 8.8 m/s in 4.52 s. Find the work done on the car in this time. Answer in units of J. part 2 Find the average power delivered by the engine in the first 1.808 s. Answer in units of W. part 3 Find the instantaneous power ...
February 27, 2011

Physics
Karen has a mass of 52.7 kg as she rides the up escalator at Woodley Park Station of the Washington D.C. Metro. Karen rode a distance of 57.5 m, the longest escalator in the free world. The acceleration of gravity is 9.8 m/s2 . How much work did the escalator do on Karen if it...
February 27, 2011

Physics
When a rattlesnake strikes, its head accelerates from rest to a speed of 30 m/s in 0.64 s seconds. Assume for simplicity that the only moving part of the snake is its head of mass 100 g. How much (average) power does the rat- tlesnake need to accelerate its head that fast? ...
February 27, 2011

Physics
The initial kinetic energy imparted to a 0.1 kg bullet is 1036 J. The acceleration of gravity is 9.81 m/s2 . Neglecting air resistance, find the range of this projectile when it is fired at an angle such that the range equals the maximum height attained. Answer in units of km.
February 27, 2011

English
I forgot to include the following sentences. 1) Other themes are (those of?) the passing of time and the relationship with nature. 2) Beowulf swang up (the same as "raised"?) his towering shield and shook out (the same as "lifted") his sword so hard that it...
February 27, 2011

English
Can you help me check the following sentences I'm doubtful about? Thank you. 1)The dragon tries to kill Beowulf with the flames he blows from his mouth. 2) Beowulf is buried wiht the glory and the gold he had won (?) in his battles. 3) The name Beowulf results from the ...
February 27, 2011

algebra
divide 3ã189a^7b^8
February 25, 2011

algebra
simplify and factor 5ã320x^7y^25
February 25, 2011

algebra
multiply and simplify, I am confused. 3ãy^7 3ã16y^8
February 25, 2011

algebra
4ã96x^8y^10
February 25, 2011

Physics (simple electronics)
The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of a 775 µF capacitor is 330 V. (a) Determine the energy that is used to produce the flash in...
February 24, 2011

college physics
oops. sorry. messed that up didn't i?
February 24, 2011

college physics (simple electronics)
The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of a 775 µF capacitor is 330 V. (a) Determine the energy that is used to produce the flash in...
February 24, 2011

English
1) Can you tell me if the word "counter of frozen food, frozen food counter" can be replaced by "freeze counter"? 2) Go through the arcades as far as the baker's. At the baker's turn left into Piccadilly Street. 3) Cross the road on the zebra ...
February 24, 2011

English
Cn you please help me with these sentences, please? Thank you very much in advance. 1) Do you mind if I change channel to the football match? 2) If there is an earthquake and I'm inside a building, I'll get (or I ge) under a table or desk. 3) If I'm out of a ...
February 24, 2011

English
Can you please check these sentences for me, please? Thank you very much. 1)The avenger is involved in complex planning. 2) A lot of murders occur within the play. 3) The hero becomes more and more isolated throughout the play (better: within the play, as the play develops?) 4...
February 24, 2011

English
Can you check these sentences for me please? Thank you very much. 1) He doubts about suicide (wrong) He is doubtful about /he has doubts about suicide. 2) A period of doubt follows, in which (not when?) the hero plans his revenge. 3) Every man is scared: better everyone/all of...
February 24, 2011

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