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
Radda [10]
3 years ago
7

Two objects are placed in thermal contact and are allowed to come to equilibrium in isolation. The heat capacity of Object A is

three times the heat capacity of Object B and the initial temperature of Object A (TA) is twice the initial temperature of Object B (TB).
1)

What will the final temperature of the two-object system be?

2TB

1.75TB

1.5TB

1.2TB

TB
Physics
1 answer:
Oksi-84 [34.3K]3 years ago
8 0

Answer:

Explanation:

Heat capacity A = 3 x heat capacity of B

initial temperature of A = 2 x initial temperature of B

TA = 2 TB

Let T be the final temperature of the system

Heat lost by A is equal to the heat gained by B

mass of A x specific heat of A x (TA - T) = mass of B x specific heat of B x ( T - TB)

heat capacity of A x ( TA - T) = heat capacity of B x ( T - TB)

3 x heat capacity of B x ( TA - T) = heat capacity of B x ( T - TB)

3 TA - 3 T = T - TB

6 TB + TB = 4 T

T = 1.75 TB

You might be interested in
First to answer will be the brainliest i need the answer ASAP
slavikrds [6]
The answer is chemical.
5 0
3 years ago
How many total atoms in the chemical formula CaCO2?
Gre4nikov [31]

Explanation:

Calcium carbonate is a molecule that contains one atom of calcium, one atom of carbon, and three atoms of oxygen.

7 0
3 years ago
Is there a frame of reference one can go into that seems to eliminate gravity as Newton described it?
andriy [413]

Answer:

Yes such a frame exists: a free-fall (free-float frame) frame. This frame of reference is subject only to gravity and no forces such as electromagnetic forces or nuclear forces.

3 0
3 years ago
What is found in both plant and animal cells but is much larger in plant cells
djverab [1.8K]
The vacuoles because the plant's central vacuole is bigger.
3 0
3 years ago
Read 2 more answers
Given the function f(x) = 8x3 − 3x2 − 5x 8, what part of the function indicates that the left and right ends point in opposite d
ale4655 [162]

Answer: The degree of the first term.

Explanation:

The function:

f(x) = 8x^3-3x^2-5x^8

The left and right ends would be indicated when x is changed to -x. When this is substituted, the change is indicated by the first term because only the degree of first term is odd.

Let the left hand side be donated by -x.

Then,

f(-x) =8(-x)^3-3(-x)^2-5(-x)^8\\ \Rightarrow f(-x)=-8x^3-3x^2-5x^8

Hence, the correct option is the degree of the first term indicates the left and right end points of the function.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the time constant of a 9.0-nm-thick membrane surrounding a 0.040-mm-diameter spherical cell? Assume the resistivity of t
    8·1 answer
  • Which expression is dimensionally consistent with anexpression that would yield a value for time-1?(v is velocity, x is distance
    10·1 answer
  • 49.An object accelerates from rest to a speed of 24 m/s over a distance of 56 m. What
    13·1 answer
  • What can landmark cases produce that help courts decide how to interpret certain laws
    10·2 answers
  • on cloudless nighs, heat escapes from our planet and goes into empty space A.conduction B.convection C.radiation
    9·2 answers
  • What is an important difference between medieval muslim and christian art?
    15·1 answer
  • Why do some nucleus emit electrons?
    9·1 answer
  • Help pls pls i give reward
    10·2 answers
  • Ifa truck starts from rest and it has acceleration of 4 m/s for 5 second
    8·1 answer
  • a An object is tarown up with a velocity v = 6.02 +7.0j. Calculate the (1) time taken reach the maximum height (ii) the horizont
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!