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
Maurinko [17]
3 years ago
9

Consider two identical iron nails: one nail is heated to 95 °c, the other is cooled to 15 °c. the two nails are placed in a coff

ee cup calorimeter and the system is allowed to come to thermal equilibrium. what is the final temperature of the two nails
Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
3 0
The heat released or absorbed by a substance is calculated through the equation,
     H = mcpdT

where H is teh heat,
   m is the mass,
  Cp is the specific heat, and 
  dT is the temperature difference

In this item, since both nails are identical, m and cp for both nails are equal such that the equation can be expressed as,
    mcp(95 - x) = mcp(x - 15)

where x is the final temperature. Solving for the value of x from the equation derived above will give us a final answer of 55 degrees C. 

Answer: 55°


You might be interested in
At Dorthys hair salon, 4 gallons of shampoo will last 3 weeks. She has 7 gallons of shampoo. How much more must she order if she
lara31 [8.8K]
X=number of gallons that she must order.

4 gallons-----------------3 weeks
(7 gallons + x)--------12 weeks

We solve this rule of 3.
(7 gallons +x)3 weeks=4 gallons*12 weeks
21 gallons weeks+3 x weeks=48 gallons weeks
3x weeks=48 gallons weeks - 21 gallons weeks
3x weeks=27 gallons weeks
x=(27 gallons weeks) / 3 weeks=9 gallons.

Solution: she must order 9 gallons more.
5 0
3 years ago
-12=-2(2-8) <br> Is it true false or an open sentence
MissTica
The statement is false because when you use distributive property, you get -12=-4+16 and when you add 16 to -4, you'll get 12, not -12, making the statement false.
7 0
3 years ago
Read 2 more answers
The diameter of a circle is 6 inches. What is the circle's circumference?​
katrin2010 [14]

Answer:

brainiest? 37.68

Step-by-step explanation:

6 x 2 = 12

12 x 3.14 = 37.68

4 0
4 years ago
What is the answer to 2x - 6 = 8 - x
fenix001 [56]
Move the x's to the same side

2x + x = 8 +6

then simplify

3x = 14

make x stand on its own

(3x)/3 = 14/3

the 3's on the x side cancel

x = 14/3

8 0
3 years ago
Read 2 more answers
37% of what number is 72?
tatiyna
The answer is 194.59

(72 x 100) / 37 = 194.59
4 0
3 years ago
Read 2 more answers
Other questions:
  • Mr.Nowlings garden has a length that is 7ft more than twice the width. Draw a diagram to represent this situation.Label each sid
    10·2 answers
  • I need help with this Algebra
    14·1 answer
  • Determine the intercepts of the line.
    10·2 answers
  • John should drive to his workplace and back to home. On the way to the workplace it was raining, so he drove at a speed of 42mph
    6·1 answer
  • When a particle is located a distance x meters from the origin, a force of cos(πx/7) newtons acts on it. Find the work done in m
    15·1 answer
  • Graph 5x + 3y = 15 on a graph ​
    12·1 answer
  • 6x² + 7 + 8 x 5 +9<br> What is the degree of the polynomial?
    14·1 answer
  • PLZ Help I will GIVE BRAINLY
    8·1 answer
  • 0 = −5n − 2n How do I solve this
    11·1 answer
  • Help me please <br>i need x​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!