1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Keith_Richards [23]
3 years ago
8

"One step in the manufacture of silicon wafers used in the microelectronics industry is the melt crystallization of silicon into

a crystalline silicon ingot. This processis carried out within a special furnace. When the newly solidified ingot is removed from the furnace, it is assumed to have a uniform initial temperature of 1600 K, which is below the crystallization temperature. At this temperature, the thermal conductivity of silicon is 22 W/(m•K), the density is 2300 kg/m3, and the heat capacity is 1000 J/(kg•K). The hot solid silicon ingot is allowed to cool in air maintained at a constant ambient temperature of 30°C. The diameter of the silicon rod is 15 cm. End effects are considered negligible. The convective heat transfer coefficient is 147 W/(m2•K). What temperature will exist 1.5 cm from the surface of the ingot after a cooling time of 583 sec (9.72 min)?" Consider the rod as acylinder placed vertically.
Physics
1 answer:
nevsk [136]3 years ago
7 0

Answer:

fgfgfdgdg

Explanation:

gfdgfgfgd

You might be interested in
How do you draw an ear
Neporo4naja [7]

Answer:

drawing of ear step by step

8 0
3 years ago
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (60pts)
mr Goodwill [35]
The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.
So since the boat has a lower density than the water, it will float.
So the answer is choice B
3 0
3 years ago
You rub a clear plastic pen with wool, and observe that a strip of invisible tape is attacted to the pen. Assuming that the pen
gayaneshka [121]

Answer:

option B

Explanation:

When you rub a clear plastic pen with the wool the plastic pen gets charges this phenomenon is known as frictional charging.

Due to rubbing, the pen gets negatively charged.

We know, opposite charge attract each other and the same charge repel each other.

So, when the pen is negatively charged the tape might be positively charged or the tape might be uncharged.

Hence, the correct answer is option B

6 0
3 years ago
2. Which statement is correct about the Krebs cycle?
IRINA_888 [86]

The correct option is


a. Acetyl-CoA combines with a pyruvic acid to make glucose in the Krebs cycle.


Explanation:

The Krebs citric acid cycle happens within the mitochondrial matrix and generates a pool of energy (ATP, NADH, and FADH2) from the oxidization of pyruvate, the tip product of metabolism. Pyruvate is transported into the mitochondria and loses dioxide to make acetyl-CoA, a 2-carbon molecule.

5 0
3 years ago
Read 2 more answers
Who are the scientists given credit for discovering electrons, protons, and neutrons?
nydimaria [60]
J.J. Thompson is the scientist who recieved credit for discovering them.
7 0
3 years ago
Other questions:
  • Which name is given to the type of friction that objects falling through air experience?
    10·2 answers
  • The half life of cobalt-60 is 5.3 years. If a certain rock currently contains 10.0g of cabals -60 how much cobalt-60 will remain
    9·1 answer
  • How to do the equation p1v1 = p2v2 as an equation layed out like:
    7·1 answer
  • If a man has a mass of 83 kg on Earth what will the force of gravity on his body be on the moon
    14·2 answers
  • A motorcycle has a constant acceleration of 3.49 m/s2. Both the velocity and acceleration of the motorcycle point in the same di
    10·1 answer
  • Which statement explains why looking at a dimly lit object with peripheral vision at night results in the clearest image of the
    13·1 answer
  • A 32 kg object has a momentum of 480 kg m/s northward. What is the
    11·2 answers
  • PLEASE help its timed..
    5·1 answer
  • What are the three major tendons in the knee?
    10·2 answers
  • Time (min)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!