All categories

3 years ago

Please help me with this question...

Physics

2 answers:

Yakvenalex [24]3 years ago

7 0

1) In first case, both the objects(hand & tea) are in direct contact, so heat will flow by the process of "Conduction"

2) In this case, objects are not in direct contact, and heat is transferring from one to another by "Convection"

3) Here, there is no contact between the objects (our body & sun), sun light with heat comes through the process of "Radiation"

In short, Your Answers would be:
1) Conduction
2) Convection
3) Radiation

Hope this helps!

Arturiano [62]3 years ago

4 0

The first is conduction.

This comes as the hot water spills on to your hand through contact.

The second is convection. The hot air rising is due to convection currents being set up.

The third is radiation. This is heat transfer through space.

You might be interested in

How do unemployment impact on an individual's psychological well being?

Natalija [7]

Answer:

Unemployment cause stress which ultimately has long-term physiological health effect

4 0

3 years ago

The planets Hox and Blox are near each other in the Dorgon system. The Dorgons have very advanced technology, and a Dorgon scien

dexar [7]

<h2>Answer: Decreasing the distance between Hox and Blox, increasing the mass of Hox, or increasing the mass of Hox and Blox. </h2>

Explanation:

According to the law of universal gravitation:

$F=G\frac{m_{1}m_{2}}{r^2}$

Where:

$F$ is the module of the attraction force exerted between both planets

$G$ is the universal gravitation constant.

$m_{1}$ and $m_{2}$ are the masses of both planets.

$r$ is the distance between both planets.

As we can see, the gravity force is directly proportional to the mass of the bodies and inversely proportional to the square of the distance that separates them.

In other words:

If we decrease the distance between both planets (Hox and Blox), the gravitational pull between them will increase.

On the other hand, if we keep the distance between Hox and Blox, but we increase the mass of one of them, or increase the mass of both, the gravitational pull between them will also increase.

7 0

3 years ago

Read 2 more answers

Everything in the world has the same density. True or False?

JulijaS [17]

False
Nothing has the same destiny everything has their own destiny to follow

4 0

3 years ago

Which would take more force to stop in 17. 3 seconds: a 3. 2 kg ball rolling in a straight line at a speed of 0. 3 m/sec or a 4.

Molodets [167]

The second one (4.1 kg ball)

This is because the mxv is greater than the other one.

For the 4.1kg ball, the force it’s moving on is 4.92N

As for the 3.2kg ball, it’s moving with a force of 0.9N. Much less than the other one.

4 0

2 years ago

If you and a friend are standing at opposites ends of a gymnasium and one of you claps, will the other hear the clap at the same

34kurt

Answer:

No. Your friend will not hear the clap when he/she sees it.

Explanation:

It takes time for sound waves to go through a large area. It takes longer if people are in the area rather than it is empty.

3 0

3 years ago