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
Readme [11.4K]
3 years ago
6

A copper rod 81 cm long is used to poke a fire. the hot end of the rod is maintained at 105° c and the cool end has a constant t

emperature of 21°
c. what is the temperature of the rod 23 cm from the cool end
Physics
1 answer:
Ugo [173]3 years ago
7 0
The temperature inside the copper rod varies linearly with the distance from the hot end of the rod. This means that we can find the temperature at 23 cm (let's call it 'point A') from the cool end by solving a linear proportion.

The temperature difference between the two ends of the rod is
\Delta T = 105^{\circ}-21^{\circ} = 84^{\circ}
and this corresponds to a length of 81 cm. Therefore, we can write:
84^{\circ}:81~cm = x:23~cm
from which we find
x=23.8~^{\circ}
This is not the final answer actually; this is the temperature difference between the cool end and point A. So, the temperature at point A is
T_A = 21^{\circ}+x=44.8^{\circ}
You might be interested in
The _____ is about determining if you are the way you are because of your
REY [17]

Answer: nature versus nurture debate

Explanation:

3 0
3 years ago
4748.36242611007 round to the nearest tenth
IceJOKER [234]

Answer:4748.36

Explanation:

3 0
3 years ago
Read 2 more answers
The game was played by swinging the big mallet down hard enough to cause the bell to ring. If it took a 44 newton force to ring
nata0808 [166]
I think C. 33 newtons
3 0
3 years ago
When is orange is the new black episodes come out
xenn [34]
Some are out but will be on Netflix June 17
3 0
3 years ago
ANSWER ASAP PLZZZZ!!!!!!!!
igor_vitrenko [27]

Answer: your correct answer is a i took the test

Please i need brainlist i need one more and i level up :)

6 0
3 years ago
Other questions:
  • A rock weighs 110 N in air and has a volume of 0.00337 m3 . What is its apparent weight when submerged in water? The acceleratio
    5·1 answer
  • Complete the sentence. According to the law of reflection, the angle of _____ is equal to the angle of reflection.
    9·2 answers
  • A farmer places unhatched chicken eggs under a heat lamp. How does the radiation help the eggs?
    8·2 answers
  • HOW FAR CAN A PERSON RUN IN 10 MINUTES AT A SPEED OF 260M/MIN
    14·1 answer
  • A truck moving at 36 m/s passes a police car moving at 45 m/s in the opposite direction. If the frequency of the siren is 500 Hz
    10·1 answer
  • The planet Venus, our moon, and Halley's Comet all
    15·2 answers
  • You wish to boil 1.9 kg of water, which has a specific heat capacity of 4186 J/kg-K. The water is initially at room temperature
    15·1 answer
  • Please help me with 1&2
    11·1 answer
  • Describe the resultant force acting on an object if it is at rest or travelling at a constant velocity.
    7·1 answer
  • If two objects have different tempters, in which direction will heat move? for how long
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!