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
grigory [225]
3 years ago
9

An iron bar of mass 869 g cools from 94 C to 5 C . Calculate the heat releases in (Kilojoules) by the metal.

Advanced Placement (AP)
1 answer:
kvv77 [185]3 years ago
5 0
For this question, we apply the equation:
Q = mCp ΔT
Where m is the mass of the substance, Cp is its specific heat capacity and ΔT is the temperature change.
Q = 896 x 0.45 x (5 - 94)
Q = -35884.8 Joules
So about -36 kilojoules of heat is released.
You might be interested in
PLEASE READ!!!!! can someone help with this APUSH unit test on edge2020
morpeh [17]
There’s no picture?
7 0
3 years ago
base sa iyong natutunan ukol sa paksa ilahad ang mga epekto ng suliraning teritoryal at hangganan sa epekto ng lipunan kabuhayan
malfutka [58]

Answer:

dcvoaisjxjdndjndjdksksjjsjsjdjdid

7 0
3 years ago
PLEASE HELP How did Native resistance to the Spanish in North America affect their colonizing efforts in the area? ****APUSH Per
m_a_m_a [10]
Native resistances delayed the progress of colonization. An example of this is the Pueblo revolt. As a result of the Pueblo revolt Spanish colonization slowed and the Native Americans were able to hold off the Spanish for a brief period of time,
4 0
3 years ago
You buy certain supplies in Nearland. Last year, the currency exchange rate was 1 USD = 3 NRD. Are these supplies more or less e
Vinil7 [7]

Answer:

I would say It would be more expensive.

Explanation:

Not really sure how to put this in a complete sentence

4 0
3 years ago
Read 2 more answers
Lomani Ltd acquired two new machines for cash on 1 January 2017. The cost of
gogolik [260]

Answer:

The depreciation expense will be

Machine A : $38,000

Machine B : $55,000

Explanation:

Straight line depreciation recognize an assets carrying amount evenly over its useful life.

Straight line Depreciation = (Cost - Estimated Residual Value) / useful life

Depreciation expense for Machine A:

($400,000 - $20,000) / 10 years

= $38,000

Depreciation expense for Machine B:

($600,000 - $50,000) / 10 years

= $55,000

8 0
3 years ago
Other questions:
  • Identify the career cluster being described in each example. protection of people, property, and laws: design and maintenance of
    8·1 answer
  • A two point turn is similar to a three point turn save for which of the following aspects​
    12·1 answer
  • Describe Dante's vision of Paradise.​
    5·1 answer
  • How did a cosmopolitan civilization develop in the middle east during the late bronze age, and what forms did it take?
    5·1 answer
  • True or False? <br> RAW files can be compressed without losing information.
    8·2 answers
  • Rick, a doctor, has recently started abusing his girlfriend. What do you think could be a likely cause for Rick’s abusive behavi
    9·2 answers
  • What are the English translations for these Latin sentences? Serious answers only please!
    15·1 answer
  • What is the safest way to dispose of old bank account statements?
    14·1 answer
  • At what price is there an excess supply of 1000?
    8·1 answer
  • What has thirteen hearts but on other organs
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!