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olga55 [171]
4 years ago
8

On a particle level, what happens when thermal conduction occurs within a liquid?

Physics
2 answers:
Kay [80]4 years ago
5 0

Answer:

a) When fast particles rise to the top.

Explanation:

Heat is a form of energy that can be studied through the thermal agitation of the molecules that a material involves. When heat is delivered to a body, its temperature increases, the mobility of its molecules increases. In this way, the system is not in thermal equilibrium: the temperature at each point of the body is different and the variations over time.

There are three forms of heat transmission: conduction, convection and radiation. In conduction, heat is transferred only because of molecular movement and shocks between fast and slow molecules, without displacement of matter. Convection is due to the global movement of matter and is only important in liquids and gases. Radiation is an electromagnetic interaction between bodies and does not require the existence of a material means to transmit heat from one to another. The conduction of heat in a medium can be more or less favorable according to the material.

Elodia [21]4 years ago
4 0

B sounds perfect to me

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How does the amount of resistors affect the current in a series circuit
Yuki888 [10]
The current in a series circuit decreases as the TOTAL RESISTANCE increases. Resistors come in many values, so the total resistance has nothing to do with the number of resistors. There could easily be one single resistor with greater resistance than 500 resistors with smaller values.
5 0
3 years ago
A tube 1.20 m long is closed at one end. A stretched wire is placed near the open end.The wire is 0.330 m long and has a mass of
Alinara [238K]

Answer:

Explanation:

tube:

f=v/4L = 343/(4*1.2)= 71.4583Hz tube's fundamental frequency  

wire:  

f=v/2L -> v=2Lf

v= 2*0.323*71.4583= 46.162m/s  

ρ= 0.0095/0.323= 0.02941kg/m  

v=√(T/ρ) -> T=v^2*ρ

T= 46.162^2*0.02941= 62.67[N] Tension of wire.

6 0
3 years ago
What is the magnitude of force required to accelerate a car of mass
mart [117]

Answer:

<h2>The answer is 8075 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

<h3>force = mass × acceleration</h3>

From the question

mass = 1.7 × 10³ kg = 1700 kg

acceleration = 4.75 m/s²

We have

force = 1700 × 4.75

We have the final answer as

<h3>8075 N</h3>

Hope this helps you

3 0
3 years ago
What is an appraisal of an employee's performance in the workplace?
Diano4ka-milaya [45]

Answer:

B. evaluation

Explanation:

An employee can be defined as an individual who is employed by an employer of labor to perform specific tasks, duties or functions in an organization.

Basically, an employee is saddled with the responsibility of providing specific services to the organization or company where he is currently employed while being paid a certain amount of money hourly, daily, weekly, or monthly depending on the contractual agreement between the two parties (employer and employee).

Hence, while an employer may be the owner of a business firm or company, an employee is a subordinate employed to provide unwavering services to the employer while also, being professional and diligent at all times.

Human resources management (HRM) can be defined as an art of managing, controlling and improving the number of people (employees or workers), functions, evaluation of employees, activities which are being used effectively and efficiently by an organization.

Hence, human resources managers are saddled with the responsibility of recruiting, evaluating, managing and improving the welfare and working conditions of the employees working in an organization.

Basically, the human resources manager carry out appraisals on the performance of the various employees working in an organization. These informations about employees are typically used for promotional purposes, allowances and other benefits or form of rewards.

6 0
3 years ago
Directions: Fill in the blank with the correct word. Choose from the list of possible answers in the word bank below:
Alexxx [7]

Answer:

1).atoms (3). mixture. (5). Element

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3 years ago
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