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
Aleksandr [31]
2 years ago
10

1- A car engine's cooling system con-

Physics
1 answer:
postnew [5]2 years ago
4 0

The temperature change in water is 9.95°. The temperature change in methanol is 20.65°. Water removes the thermal energy from the engine better.

<h3>What is a cooling system?</h3>

A cooling system is a system that is design to reduce the temperature of a car engine as the car in in operation.

For water;

H = mcθ

H = heat added

m = mass of water

c = heat capacity of water

θ = temperature rise

θ = H/mc

θ = 836.0 ×  10^3 J/20 Kg × 4200

θ =  9.95°

For methanol;

mass = density × volume = 0.80 g/cm3 × 20000cm^3 = 16Kg

Hence;

θ =  836.0 ×  10^3 J/16Kg × 2530J

θ = 20.65°

The thermal energy that is removed is higher with water.

Learn more about specific heat capacity:brainly.com/question/2530523

You might be interested in
Multiple Choice
Digiron [165]

Answer:

What was not required by the Massachusetts Education law of 1642 is;

Children were to be sent to designated schoolmaster for their learning

Explanation:

The Law of 1642 required that parents and master see to it that their children knew the principles of religion and the capital laws of the commonwealth.

The important aspects of the 1642 Law includes;

1) The responsibility for the basic education and literacy of a child are those of the parents and masters of child apprentices

2) Reading and writing competency of all children and servants are a requirement

3) It is the duty of the government, where a parent or master are unable to meet their tutoring responsibility, to see that a child is placed where the basic educational requirement will be met.

The role of a schoolmaster or the setting of a formal school were yet to be formed as at that time.

8 0
3 years ago
PLEASE HELP <br> IS THIS CORRECT?
Umnica [9.8K]

Answer:

yes!

Explanation:

7 0
2 years ago
Read 2 more answers
HELP PLEASE FOR BRAINLIEST!
anastassius [24]

Answer:

Density = Mass/Volume => Volume = Mass/Density = 12/3.1 = 3.87ml

Explanation:

8 0
2 years ago
Read 2 more answers
What is the likelihood that black holes exist in our galaxy? Explain your response.
Mashcka [7]
Black holes are great amounts of matter packed into a small space. When massive stars collapse upon themselves. When stars aren't able to fuel themselves they become compact. Which turn into black holes.
4 0
3 years ago
Read 2 more answers
A large aquarium of height 5.00 m is filled with fresh water to a depth of 2.00 m. One wall of the aquarium consists of thick pl
earnstyle [38]

Answer:

total force =   4.704 × 10^5 N

Explanation:

given data

height = 5 m

depth = 2 m

thick plastic = 8.00 m

depth = 4.00 m

solution

first we get here force in which aquarium fill with depth 2 m

dF = PdA   ......1

F = ∫PdA

F = ∫ϼgy(wdy)

F = ϼgw ∫ y dy

F =  ϼgw × \frac{y^2}{2}    .................2

F = 1000 \times 9.8 \times 8 \times \frac{2^2}{2}  

F = 1.568 × 10^5 N

and

now we get here force for depth 4 m

put here value in equation 2

F = 1000 \times 9.8 \times 8 \times \frac{4^2}{2}  

F = 6.272 × 10^5 N  

so that here

total force will be

total force =  6.272 × 10^5 N   -  1.568 × 10^5 N

total force =   4.704 × 10^5 N

6 0
2 years ago
Other questions:
  • Imagine two billiard balls on a pool table. Ball A has a mass of 2 kilograms and ball B has a mass of 3 kilograms. The initial v
    5·2 answers
  • How do cells and atoms relate?
    15·2 answers
  • A constant torque of 29.1 N · m is applied to a grindstone whose moment of inertia is 0.142 kg · m2 . Using energy principles, a
    10·1 answer
  • a wire of a certain material has resistance r and diameter d a second wire of the same material and length is found to have resi
    14·1 answer
  • How do i turn 36 m/s into mph
    12·1 answer
  • A battery has an electric potential of 1.5V and transfers 10.0 C between the two terminals. How much work was done?
    15·1 answer
  • Mechanical energy is the sum of ________ energy and potential energy.apex
    6·1 answer
  • Other quanto
    6·1 answer
  • when a metal ball is heated through 30°c,it volume becomes 1.0018cm^3 if the linear expansivity of the material of the ball is 2
    5·1 answer
  • Identify the law, write the equation and calculate the answer to the problem below.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!