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olga55 [171]
3 years ago
12

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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What affect does doubling the net force have on the acceleration of the object (when
Triss [41]
<h3>Answer: The acceleration doubles</h3>

===========================================================

Explanation:

Consider a mass of 10 kg, so m = 10

Let's say we apply a net force of 20 newtons, so F = 20

The acceleration 'a' is...

F = ma

20 = 10a

20/10 = a

2 = a

a = 2

The acceleration is 2 m/s^2. Every second, the velocity increases by 10 m/s.

---------------

Now let's double the net force on the object

F = 20 goes to F = 40

m = 10 stays the same

F = ma

40 = 10a

10a = 40

a = 40/10

a = 4

The acceleration has also doubled since earlier it was a = 2, but now it's a = 4.

---------------

In summary, if you double the net force applied to the object, then the acceleration doubles as well.

8 0
2 years ago
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Why is the unit of work is a derived unit<br>​
masha68 [24]

Answer:

Since energy can be measured as work, we can write energy = force x distance. Thus SI derived unit of energy has the units of newtons x meter or kg m2/s2.

Explanation:

5 0
2 years ago
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What happens to the strength of the magnetic field as you come closer to the current carrying wire
Leokris [45]
Form concentric circles around the wire

6 0
3 years ago
You could use newton’s second law to calculate the force applied to an object if you knew the objects mass and its _____.
olga2289 [7]

Answer:

You could use newton’s second law to calculate the force applied to an object if you knew the objects mass and its <u>acceleration.</u>

Explanation:

By, Newtons second law, the force applied on an object directly varies with the acceleration caused and the mass of the object.

This is given by :

F=m\ a

Where F represents force applied on the object , m represents mass of the object and a represents the acceleration.

In order to calculate force applied on object we require the mass of the object and its acceleration. The force can be calculated by finding the product of mass and acceleration of the object.

4 0
3 years ago
you ride your bike for a distance of 30km. you travel ata a speed of 0.75km/minute.how many minutes does it take
mihalych1998 [28]
Distance for which the bike is ridden = 30 km
Speed at which the bike is driven = 0.75 km/minute
Let us assume the number of minutes taken to travel the distance of 30 km = x
Now we already know the formula of speed can be written as
Speed = Distance traveled/ Time taken
0.75 = 30/x
0.75x = 30
x = 30/0.75
  = 40 minutes
So the time taken for riding a distance of 30 km will be 40 minutes. I hope this procedure is simple enough for you to understand.
7 0
3 years ago
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