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
zavuch27 [327]
3 years ago
13

An iron ball and an aluminum ball of mass 100 g each are heated to the same temperature and then cooled to a temperature of 20°

Physics
2 answers:
MrRa [10]3 years ago
7 0

Answer:

The specific heat of aluminum is greater.

Explanation:

It lost the most heat.

zepelin [54]3 years ago
3 0

Answer:

specific heat of aluminium is more than the specific heat of iron

Explanation:

mass of both the balls, m = 100 g

heat lost by iron is 3.6 kJ and the heat lost by aluminium is 7.2 kJ.

The amount of heat required to raise the temperature of substance by 1°C of mass 1 kg is defined as the specific heat of the substance.

Here, the amount of heat required to raise the temperature of aluminium by teh same amount as that of iron and mass remains same, so it means the opecific heat of aluminium is more than the specific heat of iron.

You might be interested in
Explain your problem of<br>Federalism<br>​
telo118 [61]

That is more of a History of English question.

6 0
3 years ago
A 22 µF capacitor charged to 0.7 kV and a second 115 µF capacitor charged to 5.5 kV are connected to each other, with the positi
vesna_86 [32]

Answer:

0.099C

Explanation:

First, we need to get the common potential voltage using the formula

V=\frac {C_2V_2-C_1V_1}{C_1+C_2}

Where V is the common voltage, C and V represent capacitance and charge respectively. Subscripts 1 and 2 to represent the the first and second respectively. Substituting the above with the following given values then

C_1=22\times 10^{-6} F\\ C_2=115\times 10^{-6} F\\ V_1= 0.7\times 10^{3}\\V_2=5.5\times 10^{3}

Therefore

V=\frac {115\times 10^{-6}\times 5.5\times 10^{3}-22\times 10^{6}\times 0.7\times 10^{3}}{22\times 10^{-6}+115\times 10^{-6}}=4504.3795620437

Charge, Q is given by CV hence for the first capacitor charge will be Q_1=C_1V

Here, Q_1=22\times 10^{-6}\times 4504.3795620437=0.0990963503649C\approx 0.099C

8 0
3 years ago
4 uses of plane mirror​
faust18 [17]

Answer:

they are used in periscopes,for signalling,in kaleidoscopes,to see round dangerous bends

Explanation:

5 0
3 years ago
The fuzzy cloud around the nucleus is called the
Kamila [148]
It's number three on your worksheet. ;)
6 0
3 years ago
There. That is better.
mihalych1998 [28]

a
a
b
b
a
b
a
This will really help you learn a lot.

6 0
3 years ago
Other questions:
  • 32. (FR) A mass moving at 25 m/s slides along a rough horizontal surface. The coefficient of friction is 0.30. (A) Use force and
    9·1 answer
  • Two lasers, one red (with wavelength 633.0 nm) and the other green (with wavelength 532.0 nm), are mounted behind a 0.150-mm sli
    9·1 answer
  • A 200 g air-track glider is attached to a spring. The glider is pushed in 9.8 cm against the spring, then released. A student wi
    5·1 answer
  • What can directly lead to unconformity on an exposed rock?
    10·1 answer
  • Derive formula for pressure in any liquid
    7·1 answer
  • - A certain mass is suspended at one end of a spring of spring-constant of 32,000gm/s2. The
    9·1 answer
  • Please solve it asap ty!
    12·1 answer
  • Using my raw survival instincts, I am trying to catch a trout from a stream with my bare hands. Despite my exceptional reflexes
    14·2 answers
  • he fan blades on a jet engine make one thousand revolutions in a time of 54.9 ms. What is the angular frequency of the blades?
    7·1 answer
  • According to Newton's 2nd law of motion, if you hit a baseball with a bat it will
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!