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3 years ago

Through which of the following ways can heat be transferred?

Physics

2 answers:

yKpoI14uk [10]3 years ago

8 0

Answer:

Heat can be transfered through a material and non-material medium.

Explanation:

Through a material medium it could be solids, liquid and gas.

In solids the heat transfer process is referred to as conduction. Solids atoms are tightly packed so heat moves on the principle of contact the hotter object warms up the object in contact with. The process continues till all particles of the solid is saturated with a common temperature.

In liquids or gases the heat transfer process is referred to as convection. Here warm particles becomes less dense and become lighter creating room for other cooler particle to fall and fill in the position occupied by the particle before till the whole fluid is saturated with a common temperature.

In a non material medium the heat transfer process is referred to as radiation. Here heat is transferred from source in form of electromagnetic rays.

Fittoniya [83]3 years ago

5 0

Answer:

Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation).

Explanation:

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A 5.0 kg block hangs from the ceiling by a mass-less rope. A Second block with a mass of 10.0 kg is attached to the first block

gayaneshka [121]

The tension in the first and second rope are; 147 Newton and 98 Newton respectively.

Given the data in the question

Mass of first block; $m_1 = 5.0kg$

Mass of second block, $m_2 =10kg$

Tension on first rope; $T_1 =\ ?$

Tension on second rope; $T_2 =\ ?$

To find the Tension in each of the ropes, we make use of the equation from Newton's Second Laws of Motion:

$F = m\ *\ a$

Where F is the force, m is the mass of the object and a is the acceleration ( In this case the block is under gravity. Hence ''a" becomes acceleration due to gravity $g = 9.8m/s^2$ )

For the First Rope

Total mass hanging on it; $m_T = m_1 + m_2 = 5.0kg + 10.0kg = 15.0kg$

So Tension of the rope;

$F = m\ * \ g\\\\F = 15.0kg \ * 9.8m/s^2\\\\F = 147 kg.m/s^2\\\\F = 147N$

Therefore, the tension in the first rope is 147 Newton

For the Second Rope

Since only the block of mass 10kg is hang from the second, the tension in the second rope will be;

$F = m\ * \ g\\\\F = 10.0kg \ * 9.8m/s^2\\\\F = 98 kg.m/s^2\\\\F = 98N$

Therefore, the tension in the second rope is 98 Newton

Learn More, brainly.com/question/18288215

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As the sun sets on horizon, its rays are____ by the ocean water

valentinak56 [21]

Answer:

Reflected

Explanation:

I do not have much context here, but reflection is what happens when the sun sets on the water. The rays hit the surface of the water and bounce off, known as refelction.

Have a nice day!

I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

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A 55 newton force applied on an object moves the object 10 meters in the same direction as the force. What is the value of work

kifflom [539]

Answer: Option D: 5.5×10²Joules

Explanation:

Work done is the product of applied force and displacement of the object in the direction of force.

W = F.s = F s cosθ

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W = 55 N × 10 m × cos 0° = 550 J = 5.5 × 10² J

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