بالعلم ترتقى الامم

مصر

بوسى
منذ 8 سنوات
اجابة  1   مشاهدة  92

اوجد المقاومة المكافئة لمجموعة المقاومات الموضحة بالرسم .

emy
منذ 8 سنوات
اجابة  0   مشاهدة  90

6. Read and correct the underlined words:

1-A light object sinks on water. (...................................)

2-brain beats all the time. (...................................)

3-Graham Bell discovered the telephone. (...................................)

4-Heavy objects float on water. (...................................)

5-Don't have too much food that contains fit. (...................................)

6. How heavy does a plane go ? (...................................)

7-When you fix red and blue, you get purple. (.............................)

8-Diary products make our bones and teeth stronger. (.........................)

9. We can cycle glass, paper and plastic (...................................)

10. Why don't you make some exercises ? (...................................)

11-The computer is a very important modern invitation. (..............................)

12-When you boil air, the air moves around fast. (..............................)

13-Some kinds of blankets are made of wood. (.................................)

14-I was borne in April in 1966. (...................................)

15-The computer is not as small like the laptop. (..............................)

16. We use a tape measure for weighing people and objects. (...............................)

17-When you add oil to some water, the oil sinks. (................................)

18-Olive petrol is healthy. (...................................)

19-We use the mouse to type a message on the computer. (...........................)

20-A bus isn't as fast than the train. (...................................)

21-Winter is cold than Autumn. (...................................)

22-is interesting in watching TV. (...................................)

23-Teachers give ill people medicine to help them get better. (.........................)

24-Ali always gives me advise. (...................................)

emy
منذ 8 سنوات
اجابة  0   مشاهدة  77

25-heart covers all the body. (...................................)

26-How can 1 get fate quickly? (...................................)

27-Ali came two in the race. (...................................)

28-Peel is the inside part of fruit and vegetables. (...................................)

29-Tobacco in cigarettes contains a dangerous chemistry. (...................................)

31- How length is the way to Cairo? (...................................)

32-A lot of people wear glass. . (...................................)

33-This bag is quiet heavy. (...................................)

34-mobile phones weight less than 100 grams. (...................................)

35- Exercise can help us make better at school. (...................................)

36-Toothpaste is an Egypt invention. (...................................)

37- Why don't you make some exercise every day? (...................................)

38-People with damaged legs can't breathe very well. (...................................)

39-Ali can speak English, he can speak French, to. (...................................)

40-If you want help, Dr Sabrin will give you advise. (...................................)

41- The tablet works with the printer as well than computer does. (...................................)

42-A ship sank to the top of the sea. (...................................)

43-can say two languages. (...................................)

44- Do you want some cafe? (...................................)

45- Early mobile phones were not as heavy as they are today. (...................................)

46- Dislike my old phone, my new phone can send email messages. (...................................)

47-It is a good idea to have an eye exam every year. (...................................)

48-The Chinese discovered paper in 140 BCE. (...................................)

49-Exercise makes the lung beat faster. (...................................)

emy
منذ 8 سنوات
اجابة  0   مشاهدة  70

50-Cairo is a large village in Africa. (..............................)

51-Lend your knees when you lift a weight. (...................................)

52-Things are made of different matters. (...................................)

53- Who can I get fit quickly? (...................................)

54-Early mobiles were not as light than phones today. (...................................)

55-You can use a boat to travel across the desert. (.................................)

56-Many of the computers and phones we use are Japan. (................................)

57- The mouse mat helps you to move things around the screen. (..............................)

58-A lot of our cars are Korea or Chinese. (...................................)

59-Mango is a healthy green vegetable. (...................................)

60-shirts and blouses are made of plastic. (...................................)

61-Hamdi and his brother practice tennis every Saturday. (...............................)

62-A fish is useful because it gives us wool and meat. (...................................)

63-has a good railway order. (...................................)

64-He want be able to go to the party tomorrow. (...............................)

65-Street your arms as high as you can. (...................................)

66-While watching the match, he feel asleep. (...................................)

67-Rule up your sleeves when you are cooking. (...................................)

68-Teachers write articles for newspapers. (...................................)

69-They use chemicals to call diseases in swimming pools. (...................................)

70-If you get up early, you won't catch the bus. (...................................)

71-should always eat health food. (...................................)

72-March is the three month of the year. (...............................)

73-you lift a heavy thing, you will heart your back. (..............................)

74- Can you sweep the flower, please? (...................................)

75-We visited a clothes factories last year. (...................................)

76-Gold comes from a meal and you can use it to make money. (.............................)

77-This pencil case is made of robber. (...................................)

78. Some of Egypt's most beautiful flowers grow in the desert. (..............................)

79. I am a hundred present sure that Mr Osama will win the game. (...............................)

80. The Suez Canal is one of the world's most famous lakes. (.............................)

81-I live on the twenty-one floor. (...................................)

82. How length is your room? (...................................)

83-Lamia is a twelve years old girl. (...................................)

84-Before eating meat, we heat in the over. (.............................)

85 How width is the River Nile? (...................................)

86-Many of the computers and phones are Japan. (..............................)

بوسى
منذ 8 سنوات
اجابة  1   مشاهدة  195

سلك طوله 10cm يمر به تيار شدته 10A وضع عموديا على فيض مغناطيسى كثافته 10T

احسب القوة المؤثرة عليه وكيف تشكل هذا السلك لتحصل على اكبر عزم ازدواج ؟ احسب قيمته

هو وضعه بالنسبة للمجال فى هذه الحالة ؟

emy
منذ 8 سنوات
اجابة  0   مشاهدة  56

1. Ali never smokes, doesn't he ? (...................................)

2. Salim never exercises, doesn't he ? (...................................)

3. Romaisaa's playing the piano, hasn't she ? (............................)

4- Raneem is a clever girl, doesn't she? (...................................)

5- After school, we should do our homework, should we? (............................)

6- You don't like Sawahli music, don't you? (..............................)

7- It doesn't smell nice, is it? (...................................)

8-She cleaned the room himself. (...................................)

9. If I look at a mirror, I can see himself, (...................................)

10-Ali did the homework herself. (...................................)

11-washed the car yourself. (...................................)

12-Some computers can turn itself off. (...................................)

13-We could going shopping on Friday. (...................................)

14-Cats can clean itself. (...................................)

15-You can't use my mobile. Here you are. (.............................)

16-Children mustn't go to school every day. (..............................)

17-Before there were computers, people can't send emails. (........................)

18-Can you swim when you were three years old? (...............................)

19-Mobile phones can playing music now. (...................................)

20-Does I open the window, please? (...................................)

21-Would 1 watch television, please. Mum? (...............................)

22-You must go to school late. (...................................)

23-The table is as bigger as the chair. (...................................)

24-Football is the more popular sport. (...................................)

25-All is similar as his father. (...................................)

26-Wael is oldest than Waleed. (...................................)

27-The black bag is the more expensive one. (..........................)

28-My mobile phone is less expensive as yours. (...............................)

29-is good than watching TV. (...................................)

emy
منذ 8 سنوات
اجابة  0   مشاهدة  78

30-The early computer was as bigger as a room. (...................................)

31-The tablet is the most expensive than the mobile. (...................................)

32- My sister's marks in science are bad than her marks in English. (...........................)

33-Football is the more popular game. (...................................)

34-Adel is the same age than Mazen. (...................................)

35-Egypt isn't as colder as England. (...................................)

36-is much healthy than sweets. (...................................)

37-Water is heavy than oil. (...................................)

38-Reading is good than watching TV. (...................................)

39-think English is as easier as maths. (...................................)

40-Thieves are interested in the more expensive things that we have. (.......................)

41-Rings are making of gold. (...................................)

42-Headlines are write to make people read the article. (...................................)

43-Rice is growing in Egypt. (...................................)

44-speaks in more than 22 countries. (...................................)

45-is speaking in many countries. (...................................)

46-Newspapers are selling everywhere. (...................................)

47- How many newspapers print every day in Egypt? (...................................)

48-If your homework is difficult, I would help you. (...................................)

49-If you brushing your teeth, they will be clean. (...................................)

50-If you brush your teeth, they would stay strong. (...................................)

51. |f you pass your exam, I'll be sad (...................................)

52-What would you do if you have a lot of money? (...................................)

52-drink a glass of cold water when I felt hot. (...................................)

53-If you put a light object in water it float. (...................................)

54-Please, giving me some advice. (...................................)

55-Always leave your bag or rucksack open. (...................................)

56-Yesterday, I meet a famous person. (...................................)

58. What can I get fit quickly ? (...................................)

59-Exercise help us to think clearly. (...................................)

emy
منذ 8 سنوات
اجابة  0   مشاهدة  77

60. What old is Ali? (...................................)

61- My brothers spends much time watch TV. (...................................)

62- What about start a new hobby? (...................................)

63- Why not you play volleyball? (...................................)

64-Mobile phones has voice mail now. (...................................)

65-Never leaving your bag open. (...................................)

66. Egypt was the first country in Africa to having a railway system. (...................................)

67. How about read a book in bed? (...................................)

68-Dina plays music beautiful. (...................................)

69. This toy car is made of a metal can! (...................................)

70. Is this chair made in wood ? (...................................)

71-Hani is bad for geography. (...................................)

72-Tennis balls are made from rubber. (...................................)

73-He was born on April in 1966. (...................................)

74-A lot of computers are made of China. (...................................)

75-Cheese is made of milk. (...................................)

76-shoes are made of Italy. (...................................)

77-Blankets are made in old jumpers. (...................................)

78-1 go to work in the metro every day. (...................................)

79-- The Egyptians made toothpaste of salt and plants. (...................................)

80-Exercise is good at you. (...................................)

81-car is the same to our car. (...................................)

82-This pencil case is made from rubber. (...................................)

83-Amal's grandmother had a chair to sit up. (...................................)

84-I'm looking after a new laptop. (...................................)

بوسى
منذ 8 سنوات
اجابة  2   مشاهدة  190

يمر تيار شدته 7.2 امبير فى سلك طويل مستقيم عمودى على ورقة فى مكان قيمة المركبية الافقية

لمجال الارض المغناطيسى فيه 2.28×10-5 تسلا واتجاه التيار فى السلك لاعلى احسب محصل

كثافة الفيض المغناطيسى عند :

ا-نقطة تبعد 8 سم من محور السلك جهة الشمال منهن

ب- نقطة تبعد 8 سم من محور السلك جهة الشرق منه

-

بوسى
منذ 8 سنوات
اجابة  3   مشاهدة  315

سلك من مادة مقاومته 0.3\Omega طوله m 4 وقطره 2mm اعيد تشكيله حيث تم سحب فاصبح

قطره 1mm فاحسب :

ا- طول السلك الناتج

ب- مقاومة السلك الناتج