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
Which type of telescope has the simplest light path
ozzi
Prime Focus Reflector
6 0
3 years ago
Which of the following is true for bonds but not for stocks?
Mumz [18]

Bonds are interest-bearing assets and stocks do not.

Option - D

<u>Explanation:</u>

Stocks are an money invested in exchange of company shares (equity investment) that depicts part of ownership in a company and entitles the stock holder to a part of that company's assets and earnings. Stocks do not offer interest rates instead pays dividends and there will not be any fixed returns.

Bonds are interest-bearing or debt security, by which the lender is due to be reimbursed to the holders a debt (based on the negotiated bond terms) and is supposed to pay them interest or to repay principal amount at the maturity date. Zero-coupon bond pays both principal and imputed interest at maturity.

6 0
3 years ago
Read 2 more answers
APWH
katen-ka-za [31]
Yes, it is well in depth and has a line of reasoning. It is a well developed thesis
8 0
3 years ago
Can anyone help me out
pickupchik [31]
Excatly what do you need help with hunny
6 0
3 years ago
For each greeting card Jacqui sells, she makes a profit of $0.35. In one week, she made a profit of $42. She sells the card for
Andrej [43]

ok so she is selling the card for .75 but makes a profit of .35

.75-.35=.4 (what wasn't profit) divid 42 by .4

42/.4=105+42 (have to add in profit portion) =$147 Gross income


5 0
3 years ago
Other questions:
  • In addition to not parking where signs prohibit it, you should never park_______. A. On a side walk B. Blocking a driveway C. Wi
    14·2 answers
  • Which of the following is NOT classified as a disaster
    14·1 answer
  • What unit of time on Earth is based on the revolution of the Moon around the Earth? A. Year B. Month C. Day D. Hour
    14·2 answers
  • Which of the following is NOT permitted in a roundabout?
    10·2 answers
  • Please help<br><br> -1/3x-4/3=-3/4x-8/5
    9·2 answers
  • Iron pyrite (FeS2) is the form in which much of the sulfur exists in coal. In the combustion of coal, oxygen reacts with iron py
    12·2 answers
  • Which organelle is responsible for the synthesis of enzymes
    11·1 answer
  • Which of the following is NOT one of the methods Krakauer used to research his subject?
    12·1 answer
  • why are countries with large numbers of people under the age of 15 likely to grow a lot in population size
    5·1 answer
  • Which of the following best captures the idea of the fundamental economic problems?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!