Which of the following is not true: Bar A magnet, bar B magnet Bar A magnet, bar B not magnet Bar A not magnet, bar B magnet Bar A not magnet, bar B not magnet
1. Which of the following is not true: Bar A magnet, bar B magnet Bar A magnet, bar B not magnet Bar A not magnet, bar B magnet Bar A not magnet, bar B not magnet
Jawaban:
Bar A magnet, bar B magnet ✓
Bar A magnet, bar B not magnet X
Bar A not magnet, bar B magnet X
Bar A not magnet, bar B not magnet X
magnets if they meet magnets will attract each other, but this only works if the magnetic poles are opposite
2. a copper bar at 10c is 100m long, then it heated up to 150c. determine the length expansion of that copper bar during the heated progress if its expansion coefficient is 0.000017
Jawaban:
The length expansion of the copper bar during the heated process would be 0.17 m.
Bantu dan apresiasi penjawab dengan mengunjungi dan mengeksplorasi situs web sodiqi .com
3. A solution of copper (II) sulphate is Electrlyzed
fgbhgvb
hhfgvb
hgffhbnfcgvc
hhjnnjjElektrolisis CuSO₄ Elektroda Pt
Reaksi di Anoda 2H₂O ==> 4H⁺ + 4e + O₂
Reaksi di Katoda Cu²⁺ + 2e ==> Cu
semoga dapat membantu yah kak
untuk pertanyaan atau apapun kakak bisa mengepostkan di kolom komentar
4. objects near you, such as eraser, plastic ruler, steel paper clip, book, scissors 1. Collect some objects near you, si and pencil. Then place a bar of magnet near that object. Obser THINGS Is it attracted by magnet? [Yes/No) TYPE OF MAGNETIC FORCE Eraser Plastic ruler Steel paper clip Book Scissors Pencil
eraser : no
plastic ruler : no
steel paper clip : yes
book : no
scissors : yes
pencil : no
5. 10. Arrange these words into good sentence!the - is - What - of - price - a bar of chocolate - ?a. What is a bar of chocolate the price of ?b. What is the price of a bar of chocolate ?c. What the price is of a abr of chocolate ?d. What is the of bar of chocolate price?
Jawaban:
B
Penjelasan:
Karena menanyakan harga
Jawaban:
b. What is the price of a bar of chocolate?
(berapa harga sebatang coklat?)
Maaf Kalau Salah
Semoga Membantu
6. The Passive sentence of “John gave a bar of chocolate to Mary “ A. John is given a bar of chocolate to Mary B. A bar of chocolate was given to Mary ( by John) C. A bar of chocolate are given to Mary ( by John ) D. A bar of chocolate were given to Mary ( by John) E. A bar of chocolate is given to Mary ( by John )
Jawaban:
b
Penjelasan:
b. a bar of chocolate was given to Mary by John
7. A copper at 100 °C placed in 1250-gram of water at 10 °C. The specific heat for water is 4200 J.kg 'C' and the specific heat for copper is 389 J.KG 'C. If the temperature of the thermal equilibrium 36 °C, what is the mass of copper
Jawaban:
1250 gr = 1,25 kg
Q = m . c . ∆T
m = mass
c= specific heat capacity
∆T = temperature change
mass . 389 . (100-36) = 1,25 . 4200 ( 36-10)
mass. 389 . 64 = 1,25 . 4200 . 26
mass = 4,38624..... kg
mass = 4,4 kg
sry if i'm wrong, cuz my english ain't that good enough.
8. 0 c) 75 Fahrenheit = d) 60° Reamur renheit 3. A 50cm long copper rod has an initial temperature of 30°C. The coefficient of expansion of copper is 1.8 105FC. The length of copper at 50°C is ... cm. Plissa tolongg yang tauu jawab yaa
75 Fahrenheit = 24,1°C
60° Reamur = 56,7°C
A 50cm long copper rod has an initial temperature of 30°C. The coefficient of expansion of copper is 1.8*10^-5 FC. The length of copper at 50°C is 50 + (50 x 1.8 x 10^-5 x 50) = 50 + 0,9 = 50,9 cm.
9. 5. A block of copper of specific heat of 385 J/kg°C at a temperature of 95°C with 5 kg of mass is dropped into water of 2.5 kg of mass at a temperature of 15°C. If the specific heat of water is 4200 J/kg°C what is the final temperature of copper?
Jawaban :
Penjelasan:
Q lepas = Q terima
m . c . ~T = m . c . ~T
5 × 385 × (95 - Tc) = 2,5 × 4200 × (Tc - 15)
1925 × (95 - Tc) = 10500 × (Tc - 15)
385 × (95 - Tc) = 2100 × (Tc - 15)
55 × (95 - Tc) = 300 × (Tc - 15)
11 × (95 - Tc) = 60 × (Tc - 15)
1045 - 11Tc = 60Tc - 900
1945 = 71.Tc
Tc ≈ 27,4°C
10. One of the element used to produce wire is copper. The chemical code for copper is...
Copper = tembaga = Cu(Cuprum)
11. if a hydrogen-filled balloon is brought near a flame, it exploaded. Chooses the one word or phrase which would not be appropriate in standard written English.
Jawaban:
jika balon berisi hidrogen dibawa ke dekat api, balon itu meledak. Memilih satu kata atau frase yang tidak sesuai dalam bahasa Inggris tertulis standar.
12. If the coofficien linier expansion of copper is 0.00007 dc calculate the amount of space Carea) expansion of copperpake , given , ask ama solving oke
Penjelasan dengan langkah-langkah:
given:
[tex] \alpha = 7 \times {10}^{ - 5} \\ [/tex]
asked:
[tex]dx = ...[/tex]
solving:
[tex]dx = 2\alpha \times dt \times x \\ = 14 \times {10}^{ - 5 } \times dt \times x[/tex]
where dx is the amount of expansion, dt is the difference in temperatures, 2alpha is the area coefficient, and x is the starting length
13. What is NOT an example of a conductor ? * aluminium copper silver pure water
Jawaban:
pure water
bcuz it's non logam
Jangan lupa bintang 5 dan jadikan jawaban terbaik ya >.<
14. 5. (a) A copper ball has a mass of 1 kg. Calculate the radius of the ball, given that the density of copper is 8900 kg m^-3tolong ya kak makasih..
Jawaban:
3 x 10^-2 m
Penjelasan:
Massa = 1 kg
Massa Jenis = 8900 kg/m³
Massa Jenis = Massa / Volume
8900 kg/m³ = 1 kg/Volume
Volume = 1/8900 m³
V = 4/3 πr³
1/8900 = 4/3 x π x r³
r³ = 3/4π x 8900
r = 0,03 m = 3 x 10^-2 m
15. A bar of gold has a mass of 3,8 kg. If the density of gold is 19 g/cm3, what is the volume of the gold?
Penjelasan:
so, the bar of gold has a mass : 3,8 kg ⇒ 3800 g
and the density of gold is : 19 g/cm³
this is the formula : Volume = mass / density
V = 3800 g / 19 g/cm³
V = 200 cm³
the answer is : V = 200 cm³
16. chocholate-is-holding-of-a-bar-he
Menurut saya :
He is holding a bar of chocolate.
Semoga bermanfaat, dan jadikan jawaban tercerdas ya!!! ^^he is holding a bar of chocolate
17. the diagram shows what happens when bar X and Y brought near each other. which one of the following statements is correct? choose one : A. Both X and Y are made of non-magnetic materials. B. X is a magnet but Y is a magnetic material C. Both X and Y are magnets. D. X is made of aluminium but Y is made of iron.
Jawaban:
a.both x and y are made of non-magnetic materials.
18. Copper is a kind of metal that is ………………………… conducting electricity
Jawaban:
copper is a kind of metal that is calledconducting electricity
५ᵎʚՙsemoga membantu ᵕ̈
-rribka
19. A bar of white chocolate is eaten by me.
Jawaban:
I eats a bar of white chocolate
#maaf ini diubah ke active sentence ya?
Jawaban:
I ate a bar of white chocolate
Penjelasan:
20. A bar of white chocolate is eaten bye.
A bar of white chocolate is eaten by
Artinya : Sebatang cokelat putih dimakan oleh
0 komentar:
Posting Komentar