the difference between a temperature written in degrees Fahrenheit is 72°. a. what is the temperature in degree celcius?b. what is the temperature in degree fahrenheit?
1. the difference between a temperature written in degrees Fahrenheit is 72°. a. what is the temperature in degree celcius?b. what is the temperature in degree fahrenheit?
a. what is the temperature in degree celcius
2. what is the average daily temperature in the Earth and what is the average nightly temperature on Earth?
The average surface temperature of the Earth, day or night, is between 57.2 and 61 degrees Fahrenheit
https://www.reference.com/science/average-temperature-earth-night-9016b9ada41eacf0
3. The temperature in Tokyo is -3⁰C. The temperature in Seoul is -7⁰C. What is the difference these two temperatures?
Jawaban:
In Korea the temperature is colder
4. What is the fractional change in the resistance of an iron filament when its temperature changes from 25,0 °C to 50,0 °C?
Penjelasan:
semoga membantu dan tetap semangat guys
5. The temperature in the morning is - 2 derajat celsius. Its rises by 7 derajat celsius at noon. What is the temperature at noon?
Jawaban:
5
Penjelasan dengan langkah-langkah:
-2 + 7 = 5 derajat celcius
#terimakasih
6. The temperature in Tokyo is -8°C. In Bandar Lampung, the temperature is 29°C. What is the difference in temperature between Tokyo and Bandar Lampung? Tolong ya Makasih •o•
Jawaban:
37° C
Penjelasan dengan langkah-langkah:
cuz difference ( selisih ) suhu dua tempat,
(- 8) - 29 = -37 karena selisih selalu positif maka jdi 37°
7. the difference between the coldest and hottest temperatures recorded in a town is 38°C. if the coldest temperature is -21°C, what is the highest temperature?
38° - (-21°)
= 38° + 21°
= 59°
The highest temperature is 59°
8. the temperature of a room is 27 C,What is its temperature in kelvin?
K = C + 273
K = 27 + 273
K = 300 K
27drjat celcuis=... drjat kelvin
27 c = 273 + 27 = 300 k
9. During the day the temperature in tom’s greenhouse increases from -40c to 50c. what is the rise in temperature
Jawaban:
50 dikurang -40
50 - (-40)
min ketemu min jadi plus
50 +40
90 c
10. 15. What is the caution about?A. Telling people to plug in the wireB. Forbidding people to touch the wireC. Explaining why the wire is dangerousD. Telling people how to connect the wire
Tentang apa kehati-hatian?
What is the caution about?
Jawaban:
B. Forbidding people to touch the wire
Penjelasan:
B. Melarang orang untuk menyentuh kabel
karna berbahaya ⚠
11. what is the temperature in winter? Plis jawab!
Jawaban:
what is the temperature in winter ?
Penjelasan:
berapa suhu di musim dingin?
Jawaban:
bahasa Indonesia :
selama musim dingin, suhu rata-rata berkisar antara 4,8-20°C (40,6-68°F)
bahasa Inggris:
during winter, average temperatures range from
4,8-20°C (40,6-68°F)
Penjelasan:
semoga membantu
12. The current air temperature in Jakarta is 34°C, at the same time the air temperature in New York is -6°C. What is the difference temperature between Jakarta and New York? (Write the steps and give the conclusion)
Semoga membantu •‿•
Tolong kasih brainliest answers yaa!
Thanks
13. after a drop in temperature of 3 degree the temperature is -12,what was the temperature to start with
Penjelasan dengan langkah-langkah:
initial temperature:-3final temperature:-12results:-12-(-3)=-9°hi I'm from Indonesia you are from England huh
I hope this answer helps you if it's correct please make this the best answer I need it thank you#eager to learn#See you later14. the weather in Indonesia and the temperature is...the weather in Singapore and the temperature is....the.weather in Malaysia and the temperature is....the weather in Inggris and the temperature is...the weather in Thailand and the temperature is...pliss jawab...
Jawaban:
indonesia is tropis
singapore is tropis
malaysia is tropis
inggris is subtropis
thailand is subtropis
#backtoschool2019
15. There is 20 kg of aluminium with the temperature is 100°C. Then the aluminium temperature increase to 110°C. What is the quantity of thermal energy needed to raise the temperature of the aluminum if specific heat capacity of aluminum is 900 J/kg°C? tolong sertakan caranya jg
Jawaban:
m: 20 kg
initial temperature: 100⁰C
final temperature: 110⁰C
heat capacity: 900 J/kg ⁰C
quantity of thermal energy?
Q=m.c. T
=20.900.(110-100)
=18.000(10)
=180.000 Joule
16. 15. What is the caution about?A. Telling people to plug in the wireB. Forbidding people to touch the wireC. Explaining why the wire is dangerousD. Telling people how to connect the wire
JAWABAN:
Forbidding people to touch the wire (B)
PENJELASAN:
Di gambar, tulisannya : 'Jangan menyentuh kabelnya! dapat menyebabkan sengatan listrik'.
Berarti kan, melarang.
'Forbidding' dalam bahasa indonesia adalah 'Melarang'.
'Forbidding people to touch the wire' ➪ 'Melarang orang-orang untuk menyentuh kabelnya'.
Jadi, jawabannya B
semoga membantu. maaf kalo salah.
have a nice day :)
17. the difference between the temperature is 10 degrees 1 temperature 4 oc what is the other temperature
Jawaban:
1 2 3 4 dan 5bbsvvdkdgdgcd
18. a long aluminum wire of diameter 3 mm is extruded at a temperature of 370°c. the wire is subjected to cross air flow at 30°c at a velocity of 6 m/s. determine the rate of heat transfer from the wire to the air per meter length when it is first exposed to the air.
answer:
Explanation:
Given:
Diameter of aluminum wire, D = 3mm
Temperature of aluminum wire, T_{s}=280^{o}CT
s
=280
o
C
Temperature of air, T_{\infinity}=20^{o}CT
\infinity
=20
o
C
Velocity of air flow V=5.5m/sV=5.5m/s
The film temperature is determined as:
\begin{gathered}T_{f}=\frac{T_{s}-T_{\infinity}}{2}\\\\=\frac{280-20}{2}\\\\=150^{o}C\end{gathered}
T
f
=
2
T
s
−T
\infinity
=
2
280−20
=150
o
C
from the table, properties of air at 1 atm pressure
At T_{f}=150^{o}CT
f
=150
o
C
Thermal conductivity, K = 0.03443 W/m^oCK=0.03443W/m
o
C ; kinematic viscosity v=2.860 \times 10^{-5} m^2/sv=2.860×10
−5
m
2
/s ; Prandtl number Pr=0.70275Pr=0.70275
The reynolds number for the flow is determined as:
\begin{gathered}Re=\frac{VD}{v}\\\\=\frac{5.5 \times(3\times10^{-3})}{2.86\times10^{-5}}\\\\=576.92\end{gathered}
Re=
v
VD
=
2.86×10
−5
5.5×(3×10
−3
)
=576.92
sice the obtained reynolds number is less than 2\times10^52×10
5
, the flow is said to be laminar.
The nusselt number is determined from the relation given by:
Nu_{cyl}= 0.3 + \frac{0.62Re^{0.5}Pr^{\frac{1}{3}}}{[1+(\frac{0.4}{Pr})^{\frac{2}{3}}]^{\frac{1}{4}}}[1+(\frac{Re}{282000})^{\frac{5}{8}}]^{\frac{4}{5}}Nu
cyl
=0.3+
[1+(
Pr
0.4
)
3
2
]
4
1
0.62Re
0.5
Pr
3
1
[1+(
282000
Re
)
8
5
]
5
4
\begin{gathered}Nu_{cyl}= 0.3 + \frac{0.62(576.92)^{0.5}(0.70275)^{\frac{1}{3}}}{[1+(\frac{0.4}{(0.70275)})^{\frac{2}{3}}]^{\frac{1}{4}}}[1+(\frac{576.92}{282000})^{\frac{5}{8}}]^{\frac{4}{5}}\\\\=12.11\end{gathered}
Nu
cyl
=0.3+
[1+(
(0.70275)
0.4
)
3
2
]
4
1
0.62(576.92)
0.5
(0.70275)
3
1
[1+(
282000
576.92
)
8
5
]
5
4
=12.11
The covective heat transfer coefficient is given by:
Nu_{cyl}=\frac{hD}{k}Nu
cyl
=
k
hD
Rewrite and solve for hh
\begin{gathered}h=\frac{Nu_{cyl}\timesk}{D}\\\\=\frac{12.11\times0.03443}{3\times10^{-3}}\\\\=138.98 W/m^{2}.K\end{gathered}
h=
D
Nu
cyl
\timesk
=
3×10
−3
12.11×0.03443
=138.98W/m
2
.K
The rate of heat transfer from the wire to the air per meter length is determined from the equation is given by:
\begin{gathered}Q=hA_{s}(T_{s}-T{\infin})\\\\=h\times(\pi\timesDL)\times(T_{s}-T{\infinity})\\\\=138.92\times(\pi\times3\times10^{-3}\times1)\times(280-20)\\\\=340.42W/m\end{gathered}
Q=hA
s
(T
s
−T∞)
=h×(π\timesDL)×(T
s
−T\infinity)
=138.92×(π×3×10
−3
×1)×(280−20)
=340.42W/m
The rate of heat transfer from the wire to the air per meter length is Q=340.42W/mQ=340.42W/m
Penjelasan:
.
19. At a temperature of 20°C,the length of the iron wire is 20m. What is the length of the iron wire at 100°C. If the coefficient of the iron length is 1.1x10-5/°C?
Jawaban:
Pada suhu 20°C panjang kawat besi adalah 20 meter. Panjang kawat besi tersebut pada suhu 100°C. Jika koefisien muai panjang besi 1,1 X 10 pangkat -5 /°C adalah 20,0176 m
PEMBAHASAN
Diketahui
Lo = 20
ΔT = 100°C - 20°C = 80°C
α = 1,1 x 10⁻⁵ /°C
Ditanya
L = ?
PENYELESAIAN
\boxed {SUHU}
SUHU
Suhu merupakan ukuran keadaan panas/dingin dari suatu benda. Alat untuk mengukur suhu adalah Termometer. Terdapat 4 jenis termometer yaitu Termometer Reamur, Termometer Celcius, Termometer Fahrenheit dan Termometer Kelvin.
Termometer Reamur :
- Titik atas 80°R
- Titik bawah 0°R
Termometer Celcius
- Titik atas 100°C
- Titik bawah 0°C
Termometer Fahrenheit
- Titik atas 212°F
- Titik bawah 32°F
Termometer Kelvin
- Titik atas 373 K
- Titik bawah 273 K
Perbandingan keempat suhu tsb, sebagai berikut
\boxed { \frac {R}{80} = \frac {C}{100} = \frac {F-32}{180} = \frac {K - 273}{100}}
80
R
=
100
C
=
180
F−32
=
100
K−273
\boxed {KALOR}
KALOR
Kalor merupakan suatu bentuk energi yang dihasilkan karena adanya suhu atau temperatur. Secara umum kalor dapat berpindah dari suhu yg lebih tinggi ke suhu yg lebih rendah, ataupun sebaliknya.
\boxed {Q = m c \Delta T}
Q=mcΔT
Q = Kalor (Joule)
m = massa benda (kg)
c = massa jenis benda (J/kg°C)
ΔT = perubahan suhu (°C)
•> [ASAS BLACK]
Jika dua buah benda yg memiliki perbedaan suhu dicampurkan, akan terjadi proses perpindahan kalor hingga tercapainya suhu kesetimbangan.
\boxed {Q_{lepas} = Q_{terima}}
Q
lepas
=Q
terima
\boxed {PEMUAIAN}
PEMUAIAN
Pemuaian berarti bertambahnya panjang, luas ataupun suatu volume dari benda yang memiliki koefisien muai karena adanya kenaikan suhu. Secara umum, pemuaian ada 3 yakni Pemuaian Panjang, Pemuaian Luas dan Pemuaian Volume.
Pemuaian Panjang memiliki koefisien muai α , Pemuaian Luas memiliki koefisien muai β dan Pemuaian Volume memiliki koefisien muai γ.
Pemuaian Panjang,
\boxed {L = Lo ( 1 + \alpha \Delta t)}
L=Lo(1+αΔt)
Pemuaian Luas,
\boxed {A = Ao ( 1 + \beta \Delta t)}
A=Ao(1+βΔt)
Pemuaian Volume
\boxed {V = Vo ( 1 + \gamma \Delta t)}
V=Vo(1+γΔt)
Maka,
L = Lo ( 1 + α • ΔT )
L = 20 ( 1 + 1,1 x 10⁻⁵ • 80 )
L = 20 ( 1 + 8,8 x 10⁻⁴ )
L = 20 ( 1,00088 )
L = 20,0176 m
Penjelasan:
Semoga Dapat Bermanfaat:))
20. after a drop in temperature of 3 degree the temperature is -12,what was the temperature to start with
Jawaban:
setelah penurunan suhu 3 derajat suhu menjadi -12, berapa suhu awalnya?
suhu akhir = -12°
perubahan = -3°
suhu awal = -12 - (-3) = -9°
semoga membantu
semoga membantujadikan jawaban terbaik ya..
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Reviewed by Romano
on
Mei 10, 2023
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