The potential energy of a 2.5 kg hammer going to drop at 30 cm is....
1. The potential energy of a 2.5 kg hammer going to drop at 30 cm is....
Energi Potensial
Diketahui:
m = massa = 2.5 kg g = gravitasi bumi = 10 m/s²h = ketinggian = 30 cm = 0.3 mDitanya:
Ep = energi potensial ? JawababEp = m × g × h
Ep = 2.5 × 10 × 0.3
Ep = 25 × 0.3
Ep = 7.5 J ✔
2. 3. Which of the following does not affect the pressure of a liquid in a closed container?A. Area of liquid surfaceB. Strength of the gravitational fieldC. Density of the liquidD. Depth of the liquidjgn ngasal ya
Pertanyaan yangtelahditerjemahkan:
Dari pernyataan berikut, manakah yang tidak memengaruhi tekanan hidrostatis dalam wadah tertutup ?
A. Luas permukaan cairan
B. Kekuatan medan gravitasi
C. Massa jenis zat cair
D. Kedalaman zat cair
Jawaban :A. Area of liquid surface
Pendahuluan :Hi ! Kali ini kita akan membahas mengenai tekananhidrostatis. Tekanan hidrostatis masih dalam dimensi yang sama dengan dimensi tekanan pada zat padat. Hanya saja, tekanan hidrostatis ini dimiliki oleh zat cair. Tekanan hidrostatis yaitu tekanan yang diakibatkan oleh komponen dari zat cair itu sendiri. Tekanan hidrostatis ini disimbolkan dengan "[tex] P_h [/tex]" dan memiliki satuan N/m² atau Pa.
Pembahasan :Tekanan hidrostatis dipengaruhi oleh massa jenis zat cair ([tex] \rho [/tex]), percepatan gravitasi (g), dan kedalaman zat cair itu sendiri (h). Pengaruh antar unsurnya terhadap nilai tekanan hidrostatis yaitu :
Massa jenis zat cair([tex] \bold{\rho [/tex]}), yaitu tingkat kerapatan zat cair. Semakin tinggi nilai massa jenis zat cair, zat cair akan semakin rapat. Di dasar suatu wadah, maka tekanan yang dirasakan akan semakin besar.Percepatangravitasi(g), yaitu tingkat interaksi setiap benda ke pusat interaksi massa. Percepatan gravitasi jika Anda di Bumi akan selalu sama antara dengan rerata paling stabil 9,81 m/s² atau sering dibulatkan menjadi 10 m/s². Semakin tinggi nilai percepatan gravitasi, maka tekanan hidrostatis akan semakin besar.Kedalaman(h), yaitu kedalaman cairan yang diukur dari bagian atas permukaan zat cair hingga ke dasar bagian wadah. Tekanan hidrostatis tertinggi jelas dirasakan pada bagian dasar wadah karena itu adalah titik terdalamnya. Semakin dalam suatu wadah, maka tekanan pada dasar wadah semakin besar pula.Dari pilihan pada soal, hanya luaspermukaancairan lah yang tidak termasuk unsur penyusun tekanan hidrostatis.
Pelajari Lebih Lanjut :Contoh penerapan tekanan hidrostatis dalam kehidupan brainly.co.id/tugas/26471162Contoh soal mengenai penghitungan tekanan hidrostatis https://brainly.co.id/tugas/26648567Menentukan tekanan hidrostatis benda pada kedalaman tertentu brainly.co.id/tugas/21425980Detail Jawaban :Kelas : 8
Mata Pelajaran : Fisika
Materi : Bab 3 – Fluida / Tekanan
Kata Kunci : Tekanan; tekanan hidrostatis; unsur penyusun dan bukan penyusun tekanan hidrostatis
Kode Kategorisasi : 8.6.3
3. 7. What King of drug is ita. liquidb. Tabletc. CapsuleD. Drop
Jawaban:
C. Capsule
Penjelasan:
Maaf deh kalo salah :(
4. from the following choicees below, which of these shows how frozen water changes as the temperature of the air increases ?A. liquid gas solid.B. solid gas liquid.C. solid liquid gas.D. gas liquid solid.
Jawaban:
A. liquid gas solid
penjelasan:
sorry if wrong
5. Large container for liquid or gas
Jawabannya TANK.
Semoga membantu
6. some liquid are collected from the xylem in the stem of the plant. what is present in the liquid?
Jawaban:
Minerals
Penjelasan:
Xylem transports water and minerals
7. A measuring cylinder has a mass of 120 g when empty. When it contains 50 cm3 of a liquid, the total mass of the measuring cylinder and the liquid is 160 g. What is the density of the liquid?
Mass of cylinder (empty) = 120 gram
Mass of cylinder (with liquid) = 160 gram
Volume of liquid = 50 cm³
Density of the liquid (ρ) = ?
Answer:
Find the mass of liquid
With liquid - Empty
= 160 gram - 120 gram
= 40 gram
So, the mass of the liquid is 40 gram
Find the density of the liquid
[tex]\rho=\frac{mass}{Volume} \\\rho=\frac{40\ gr}{50\ cm^3} \\\rho=\frac{40}{50}\ gr/cm^3 \\\rho=\frac{4}{5}\ gr/cm^3 \\\boxed{\rho = 0,8\ gr/cm^3}\\or\\\boxed{\rho = 800\ gr/cm^3}\\[/tex]
Hope it helps :)
8. liquid x has a mass of 9.8 grams and volume of 1.4 centimeter cubed what si the density of liquid x
Jawaban:
0.0001428571428
Penjelasan:
Density
9.8 g = 9.8 / 1000 = 0.0098 Kg
1.4 cm^3 = 1.4 / 1000000 = 0.0000014 m^3
ρ = m/V
= 0.0000014/0.009.8
= 0.0001428571428
#backtoschool2019
9. What is the size of a rain drop?
Jawaban:
the size of 0,5mm in diameter or bigger if it gets any larger than 4 milimeters it will usually split into two separate
10. "....you camp near the waterfall?"What is definition of the underlined word?a.) A long river b.) A steep descent of the waterfall of A river c.)Any large flow of A liquid d.) A small lakee.) A body of (usually fresh) water surrounded by land
Jawaban:
b. a steep descent of the waterfall of a river
Penjelasan:
yang artinya "turunan yang curam yang mengalir air dari sungai"
answer:
b.) A steep descent of the waterfall of A river
Penjelasan:
YNTKTS
11. the process when heat rises to the top of a liquid or gas because of how the liquid or gas moves its called ___________________
Jawaban:
convection /konveksi
Penjelasan:
the procces when heat rises to the top of a liquid or gas because of how the liquid or gas moves its called convection =>bhs indo =>konveksi
Maaf klw salah !
#BLUEPHOENIX12. Calculate the KE of the liquid flowing in a pipe 5 cm inner diameter at the rate of 500 kg/min. The density of the liquid is 1.15 g/cm³.
Jawaban:
The kinetic energy (KE) of the liquid flowing in the pipe can be calculated as follows:
First, we need to determine the velocity of the liquid. This can be calculated using the equation:
v = Q / A
where v is the velocity (m/s), Q is the flow rate (m^3/s) and A is the cross-sectional area of the pipe (m^2).
To convert the flow rate from kg/min to m^3/s, we need to multiply the flow rate by the conversion factor of 1/60. Then, we need to convert the density from g/cm³ to kg/m³:
Q = (500 kg/min) * (1/60 s/min) * (1000 g/kg) = 50/6 m^3/s
ρ = 1.15 g/cm³ * (1000 cm³/m³) = 1150 kg/m³
Now, we can find the cross-sectional area of the pipe:
A = (π/4) * d^2
d = 5 cm
A = (π/4) * (5 cm)^2 = 19.63 cm^2
A = (19.63 cm^2) * (0.01 m/cm^2) = 0.1963 m^2
Using the velocity and the cross-sectional area, we can now find the volume flow rate of the liquid:
v = Q / A = 50/6 m^3/s / 0.1963 m^2 = 156.41 m/s
Finally, we can find the kinetic energy of the liquid:
KE = 0.5 * ρ * v^2 * A
KE = 0.5 * (1150 kg/m³) * (156.41 m/s)^2 * (0.1963 m^2) = 174444.44 J/s = 174.44 kJ/s
13. Translate the sentences below into Indonesiaa. Amira gots toothache after eating too much candyb. The planet Earth has a large amount of liquid water
a. Amira sakit gigi setelah makan terlalu banyak permen.
b. Planet Bumi memiliki perairan dalam jumlah besar.
Jawaban:
A.Amirasakitgigisetelahmakanterlalubanyakpermen.
B.PlanetBumimemilikisejumlahperairanair.
14. If 5 litres of a liquid has a mass of 850 g what is the density of the liquid in g/cm³
Jawaban:
0,17 g/cm^3
Penjelasan:
mass = 850 g
volume = 5 litres = 5.000 cm^3
density = mass/volume
= 850/5.000
= 0,17 g/cm^3
15. The mass of a liquid is 2 kg the liquid is heated from 12°c to 52°c the head needed is 192 kl what is the specific head of the liquid??? Plisss tolong bantu jwb yaaaa
Dik.
m = 2 kg
∆T = (52-12) °C= 40 °C
Q = 192 kJ = 192000 J
Dit. c = ?
Jawab;
Q = m.c.∆T
c = Q/(m.∆T)
c = 192000/(2.40)
c = 192000/80 = 2400 J/(kg.°C)
16. accurately measuring the volume of liquid
translate : mengukur volume cairan secara akurat
mengukur volume cairan secara akurat bisa dengan gelas ukur.
17. "pedia care long acting cought,liquid,grape"the antonym of the word"LIQUID"is...
Antony of the word "LIQUID" is Solid
Thxthe antonym of liquid is solid.
semoga membantu :)
18. what id the physical property of a liquid
Liquids are almost incompressible. In liquids molecules are pretty close to each other. The molecules does not have lot of space between them. The molecules can not squeezed closer to one another.
Liquids have fixed volume but no fixed shape.They have fixed volume but they do not have fixed or definite shape. If you take 100 ml of water, pour water in a cup, it will take the shape of the cup. Now pour the liquid from cup to a bottle, the liquid has changed its shape and now it has taken the shape of bottle.
Liquids flow from higher to lower level.fluid is a mutual change between gas and liquid, ie evaporation and condensation. It is used extensively in distillation chemical processes, one of the most widespread and beneficial methods of purifying liquids.
semoga membantu
19. If water is cooled in a refrigerator, the state or matter of the water changers from ... a. Liquid to solid b. Solid to liquid c. Liquid to gas d. Gas to liquid
a. liquid to solid (cair jadi padat)jawabannya "a"
(cair jadi padat)
.
.
.
.
'maaf kalok salah'
20. Arti dari the fun of drop sound
yang menyenangkan dari
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