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KiRa [710]
3 years ago
11

Chef tom works in a very busy restaurant. he cooks for 100's of people each night. why chef tom would use a copper pot instead o

f an aluminum pot?
Physics
2 answers:
Gala2k [10]3 years ago
6 0
<span>the copper pot heats up faster because it is a better conductor</span>
Sedaia [141]3 years ago
3 0

Explanation:

Thermal conductivity: It is the ability of a material to conduct heat. If the heat transfers occur at lower rate in a material then it has a lower thermal conductivity. If the heat transfers occur at higher rate in a material then it has a higher thermal conductivity.

Chef uses a copper pot instead of an aluminum pot because copper is a better conductor of heat as compared to aluminum. Copper has a higher thermal conductivity than aluminum. Copper is better in heat transfer.

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A 910 kg car is approaching a loop-the-loop. The loop has a diameter of 50 m. Determine the minimum speed the car must have at t
scoundrel [369]

Answer:

The minimum speed the car must have at the top of the loop to not fall = 35 m/s

Explanation:

Anywhere else on the loop, the speed needed to keep the car in the loop is obtained from the force that keeps the body in circular motion around the loop which has to just match the force of gravity on the car. (Given that frictional force = 0)

mv²/r = mg

v² = gr = 9.8 × 25 = 245

v = 15.65 m/s

But at the top, the change in kinetic energy of the car must match the potential energy at the very top of the loop-the-loop

Change in kinetic energy = potential energy at the top

Change in kinetic energy = (mv₂² - mv₁²)/2

v₁ = velocity required to stay in the loop anywhere else = 15.65 m/s

v₂ = minimum velocity the car must have at the top of the loop to not fall

And potential energy at the top of the loop = mgh (where h = the diameter of the loop)

(mv₂² - mv₁²)/2 = mgh

(v₂² - v₁²) = 2gh

(v₂² - (15.65)²) = 2×9.8×50

v₂² - 245 = 980

v₂² = 1225

v₂ = 35 m/s

Hence, the minimum speed the car must have at the top of the loop to not fall = 35 m/s

4 0
3 years ago
What are the eight states of matter?
pishuonlain [190]
The eight states of matter are


Solid.
Liquid.
Gas.
Plasma.
Bose-Einstein Condensate.
Excitonium.
Degenerate Matter.
Photonic Matter.
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3 years ago
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The area between the 10 and the 12.
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Answer:

632.8 nm is the wavelength (in air) of red light from a helium neon laser.

4 0
2 years ago
Maaf sebelumnya ,bisa minta tolong kerjakan tugas saya? saya harus mengerjakan tugas Fisika yang lain . tolong bantu 4 nomer saj
AlladinOne [14]
Sorry cant not answer this question
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3 years ago
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