a block has density of 2500 kg/m^3 and when in air it weight 25 newton. determine the weight of the block in water
1. a block has density of 2500 kg/m^3 and when in air it weight 25 newton. determine the weight of the block in water
Jawaban:
15 Newton
Penjelasan:
[tex]w = m × g \\
25 = m × 10 \\
m = 2.5 \: kg \\
ρ = \frac{m}{v} \\ 2500 = \frac{2.5}{v} \\ v = {10}^{ - 3} \: {m}^{3}[/tex]
[tex]Fa = \: ρf \times g \times v \: \\ Fa = \: {10}^{3} \times 10 \times {10}^{ - 3} = 10 \: N[/tex]
[tex]w'=w - Fa =25 - 10 = 15 \: N[/tex]
Fa = Archimedes Force
ρf = fluid density (water ρf = 1 000 kg/m³)
w' = weight of the block in water
2. A woman exerts a pressure of 100N/cm2 when standing on the floor. If her weight is 500N what is the area of the floor she is standing on?
Jawaban:
0,2 cm²
Penjelasan:
P = F/A
P = pressure / tekanan (N/m² atau Pa)
F = Force / gaya (Newton)
A = area / luasan (cm²)
diketahui:
F = 500N
P = 100 N/cm²
100 N/cm² = 500 N ÷ A
A = 100 N/cm² / 500 N
A = 1/5 cm² = 0,2 cm²
The area of the floor that she stands on is 0,2 cm²
3. of Donn's weight is equal to of Nia's weight. The sun in their weight is 1045 kg Dona's weight is....
Jawaban:
berat badan Donn sama dengan berat badan Nia. Matahari dalam berat mereka adalah 1045 kg berat Dona adalah ....
kan mereka sama berat badannya !
Penjelasan dengan langkah-langkah:
1.000 gram ÷ 1.045 kg = 0.95693779904
jadikan jawaban terbaik ,, follow me ,because it's unique, usually you know the weight on the sun
4. the shapes of a block board is
Jawaban:
rectangel / square
maaf kalo salah
Jawaban:square
Penjelasan:
5. A student is investigating the pressure that a block of wood is exerting on the floor. The weight of the wood is 20 N. The block is 10 cm long, 5 cm wide, and 2 cm high. a What is the biggest pressure that the block can exert on the floor? b What is the smallest pressure that the block can exert on the floor?
Jawaban:
a. 200 Pa ( Pascal )
b. 40 Pa ( Pascal )
Penjelasan: Well, because the question asked for maximum and minimum pressure,
then we have to find the area of the largest and smallest contact area, on a wooden block there are three variations of the area of the touch area as follows:
Area Of Touch 1 :
→ A¹ = L x W = 10 x 5 = 50cm = 0,5 m
Area Of Touch 2 :
→ A² = L x h = 10 x 2 = 20cm = 0,2m
Area of touch 3 :
→ A³ = W X h = 5 x 2 = 10cm = 0,1 m
Of the three variations of the touch area above, the largest and smallest touch areas are A¹ and A²
Then the maximum pressure is:
→ Pmax = F/A³ = (w x g)/A³
Pmax = 20/0,1 = 200
Then the minimum pressure is:
→ Pmin = F/A¹ = (w x g)/A¹
Pmin = 20/0,5 = 40
I hope this helps (•‿•)
6. A deck of trading cards weigh 43.58 g less than a bag of beads. The total weight of both items is 203.34 g. What is the weight of the bag of beads?
Jawaban:
Let Beads = b
Cards = b - 43.58
Add both Variables
Beads + Cards = b + (b-43.58) = 203.34
Beads + Cards = 2b - 43.58 = 203.34
2b = 203.34 + 43.58
2b = 246,92
b = 246,92÷2
b = 123,46 grams
The weight of the bag of beads is 123,46 grams
7. Quis nih KK 7. The weight of Tomatoes is 17 kg, The weight of potatoes is 21 kg *a. The weight of tomatoes is as much as potatoesb.The weight of tomatoes is more than potatoesc.The weight of tomatoes is less than potatoesd.The weight of tomatoes is worse than potatoes8. Arini’s tall is ... than diego’s tall *Gambar Tanpa Teksa. tallerb. shorterc. Shortestd. tallest9. Dani’s tall is ... than Diego’s tall *Gambar Tanpa Teksa. tallerb. shorterc. Shortestd. tallest10. Sabrina’s tall is ... than all *Gambar Tanpa Teksa. tallerb. shorterc. Shortestd. tallest
Jawaban:
Comparison DegreePenjelasan:
7. The weight of Tomatoes is 17 kg, the weight of
potatoes is 21 kg
C. The weight of tomatoes is less than
potatoes
8. Arini´s tall is ... than diego´s tall
A. taller
9. Dani´s tall is...than Diego´s tall
A. taller
10. Sabrina´s tall is...than all
D. Tallest
Detail Jawaban
Mapel : Bahasa Inggris
Kelas : Umum
Materi : Comparison Degree
Kode Kategorisasi : -
Kata Kunci : Comparison Degree
Demikian
Semoga membantu dan bermanfaat!
8. What is the meaning of "light weight"
lightweight means “ringan”
9. The arm of the construction crane is 50m long from one end to the other. The fulcrum of the crane is positioned 10m from the counter-weight. The crane has to lift a block of concrete that wights 25,000 N. Calculate how large the counter-weight must be.
Jawaban:
25,000N the you is mage on 60m
10. The volume of the block is 1,920cm3 what is the surafce area of the block
Sorry if wrong bro .
11. jawaban the mean of 8 men's weight in a sport team is 94 kgs. when a subtitute is included, the mean of the 9 men's weight is 92 kgs. the weight of the subtitute is...... kgs
8 . 94 = 752kg
9 . 92 = 828kg
So, the difference of it will be the weight of the subtitute. So,
828 - 752 = 76kg
12. The weight of a piece of wire is directly proportional to its length. A piece of wire is 25 cm long and has a weight of 6 grams. What is the weight of another piece of the same wire which is 30 cm long.
step-by-step explanation :
According to the question
25 cm piece of wire has weight of 6 grams
So, 1 cm of wire will has a weight of 0.24 grams
( as 25cm weight = 6grams,
1cm = 6/25 grams = 0.24 grams)
As 1 cm = 0.24 grams so,
30 cm = 0.24 x 30 grams
= 7.2 grams
13. The total weight of the three is 335kg. Ali weight is 95kg, while Abu and Ammen have the same weight. Find Abu's weight.
Ali + Abu + Ammen = 335 kg
Abu + Ammen =
335 kg - Ali =
335 kg - 95 kg = 240 kg
Since Abu and Ammen have the same weight, so Abu's weight is 240 kg ÷ 2 = 120 kg
14. Mass of a banana is 0.1 kg. Given a formula to calculate weight, w = m x g, where w is weight, m is mass, and g is strength of gravity. Calculate weight of a banana on Earth. [strength of gravity on Earth 10 N/kg] *
Penjelasan:
mass= 0.1 kg
gravity = 10 N/kg
weight = mass×gravity
= 0.1×10 = 1
15. 4. What is the name of pencak silat steps below?5 poinMove upStep backBlock
Jawaban:
di bawahnya apaan???
ga ada
16. A deck of trading cards weigh 43.58 g less than a bag of beads. The total weight of both items is 203.34 g. What is the weight of the bag of beads?
It's a simply calculate that you can see.
Bisa kamu lihat berat "trading cards" lebih kecil daripada "bag of beads".
Lalu di soal total kedua benda tersebut 203.34 gram. Yang dimaksud kedua benda yaitu "trading cards" dan "bag of beads".
Sedangkan "bag of beads" tidak tahu berapa beratnya.
Oleh karena itu, untuk mencari nilai "bag of beads", kita buat persamaan seperti ini:
"trading cards" + "bag of beads" = 203.34 gram
Masukkan berat si "trading cards"
43.58 + "bag of beads" = 203.34 gram
Pindahkan 43.58 dari ruas kiri ke ruas kanan. Maka
"bag of beads" = 203.34 - 43.50
"bag of beads" = 159.84 gram
Maka jawaban "bag of beads" adalah 159.84 gram.
The weight of bag of beads is 159.84 gram.
17. 4. What is the name of pencak silat steps below?5 poinMove upStep backBlock
Jawabannya:
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Block
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18. A: What is the English of berat bersih? B It is.... a. gross weight b. net weight c. weight-in d. serving size
Jawaban:
b net weight. moga bermanfaat
19. A rectangular block is 24 cm long. A cube with a volume of 216 cm3 is cut from the block. What is the volume of the remaining block?
V.cube = s³
s = √V.cube
s = √216
s = 6cm
[tex] \: \: [/tex]
V = V.rectangular - V.cube
V = (p × s²) - 216
V = (24 × 6²) - 216
V = 864 - 216
V = 648cm³
Jawaban:
648 cm³
penjelasan ada di foto yaa, maaf kalo kurang jelas
kalo ada yang salah bantu dikoreksi :))
20. What is the mass of a body having a weight of 45N ? (4.59 kg)
The mass of a body having a weight of 45N. W = m.g m = W/g m = 45/(9,8) = 4,59 kg
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