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
kirill [66]
3 years ago
9

How much heat is needed to boil 120 kg of water ?

Physics
1 answer:
nekit [7.7K]3 years ago
7 0
Q = mc<span>∆t, where:
q = energy flow
m = mass, 120 000 g
c = specific heat capacity, 4.81 J/gC
</span><span>∆t = change in temperature, ~75 (100 - 25, which is room temperature)

Substituting in the values, we get:
q = 120000 x 4.81 x 75 = 43290000 Joules = 43.29 MJ

Hope I helped!! xx


</span>
You might be interested in
An object's movement around an internal axis is _____.
zaharov [31]

Answer:

brooo it is rotation .............

4 0
3 years ago
Does anyone know this?!
Valentin [98]

Answer:

2 is the numerical answer.

Explanation:

Hello there!

In this case, according to the given information and formula, it is possible for us to remember that equation for the calculation of the average kinetic energy of a gas is:

KE=\frac{3}{2} \frac{R}{N_A} T

Whereas R is the universal gas constant, NA the Avogadro's number and T the temperature.

Which means that for the given ratio, we can obtain the value as follows:

=\frac{\frac{3}{2} \frac{R}{N_A} T_1}{\frac{3}{2} \frac{R}{N_A} T_2} \\\\=\frac{T_1}{T_2} \\\\=\frac{500K}{250K} \\\\=2

Regards!

8 0
3 years ago
What is the difference between delta and harbor?
Margarita [4]
The difference between delta and harbor is is that delta is the fourth letter of the modern greek alphabet while harbor is a sheltered expanse of water, adjacent to land, in which ships may dock or anchor, especially for loading and unloading. 
5 0
3 years ago
Finally, you are ready to answer the main question. Cheetahs, the fastest of the great cats, can reach 50.0 miles/hour in 2.22 s
muminat

Answer:

Acceleration = 10.06 m/s²

Explanation:

1 mile = 1.6093km

1609.3m = 1 mile

1 m = \frac{1}{1609} mile

50.0 miles/hour = \frac{50 * 1609.3}{60 * 60} m/s

                          = 22.35m/s

from equation

S = Ut + 1/2 at²

v = U + at

22.35 = 0 + a * 2.22

a = 22.35 ÷ 2.22

= 10.06 m/s²

4 0
3 years ago
Difference between discrete and continuous charge distribution?
Vlada [557]
Discrete systems are those systems in which are made up of finite component particles a which are non-homogeneously arranged such that no smooth variation exists. It is such that all constituent particles have properties which vary randomly. They are direct opposite to continuous systems, which are smooth arrangement of particles which cannot be individually taken into consideration.
Was this answer helpful
5 0
3 years ago
Read 2 more answers
Other questions:
  • An object is moving at 10 m/s slows to 6 m/s in 4 seconds. What is its average acceleration?? Help pls!!
    13·1 answer
  • Read the scenario, then answer the questions. a 2 kg ball is thrown upward with a velocity of 15 m/s. what is the kinetic energy
    10·2 answers
  • Which type of friction keeps a mound of rocks from falling away from each other
    6·2 answers
  • Which of the following is a method used to prevent soil erosion?
    6·1 answer
  • PLEASE ANSWER FIRST GETS BRAINLIEST
    10·2 answers
  • How are average speed and velocity related to each other for an object in uniform motion?
    5·1 answer
  • A 7.0kg skydiver is descending with a constant velocity
    14·1 answer
  • How does heat transfer? (Think temperature)​
    10·1 answer
  • FILL IN THE BLANKS QUESTION WITH WORDS TO PLACE IN THE BLANKS PLEASE HELP
    5·1 answer
  • A plank of length L=2.200 m and mass M=4.00 kg is suspended horizontally by a thin cable at one end and to a pivot on a wall at
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!