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2 years ago

What type of heat transfer is used to fry an egg in a pan and how can you tell?

Physics

2 answers:

Deffense [45]2 years ago

6 0

Answer: Option (B) is the correct answer.

Explanation:

A process in which transfer of heat occurring when one object touches another object is known as conduction.

For example, when a pan is heated and then an egg is placed over the pan. Then there will be transfer of heat from pan towards the egg.

As a result, the egg gets cooked because the egg was touching the pan.

Hence, we can conclude that it is conduction because the egg is touching the pan.

Scilla [17]2 years ago

6 0

The answer would be B. its is conduction because the egg is touching the pan.

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I need this type out answer question.

AveGali [126]

Answer:

The ball has 7.35 joules of energy at position B.

The velocity of the ball at position A is 3.13 meter/second

Explanation:

Kinetic and Gravitational Potential Energy

Kinetic energy is the form of energy that an object or a particle has by reason of its motion. An object of mass m and speed v has kinetic energy calculated by:

$\displaystyle K=\frac{1}{2}m.v^2$

Gravitational Potential Energy is the form of energy that an object has by reason of its height h relative to a certain reference. It can be calculated as follows:

$U=m.g.h$

Where g is the acceleration of gravity.

The figure shows a pendulum with a bob (ball) of mass m=1.5 Kg. When it's pulled to point B, it has a height of h= 0.5 m and set to rest.

The potential energy at that point is:

$U=1.5\ Kg\cdot 9.8 \ m/s^2\cdot 0.5\ m$

$U=7.35\ J$

The ball has 7.35 joules of energy at position B.

When the ball is released, all of the potential energy is transformed into kinetic energy when reaches point A. Thus:

K=7.35 J

From the equation of kinetic energy, we solve for v:

$\displaystyle v=\sqrt{\frac{2K}{m}}$

$\displaystyle v=\sqrt{\frac{2\cdot 7.35}{1.5}}$

$\displaystyle v=\sqrt{\frac{14.7}{1.5}}$

$\displaystyle v=\sqrt{9.8}$

v = 3.13 m/s

The velocity of the ball at position A is 3.13 meter/second

8 0

2 years ago

Wire A carries 4 A into a junction, wire B carries 5 A into the same junction, and another wire is connected to the junction. Wh

nydimaria [60]

Answer:9A

Explanation:

let the last wire be wire C

According to Kirchhoff's rule

the sum of all currents entering a junction must be equal to the sum of all currents leaving a junction

Ic=Ia+Ib

Ic= 4+5

Ic=9A

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2 years ago

The ability to react with air is a

seraphim [82]

I already said it but its reactivity

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2 years ago

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What are laws of newton

Black_prince [1.1K]

Answer:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction

Explanation:

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2 years ago

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An object with a mass of 5kg accelerates at 2m/s2. How much force in Newtons(N) is needed to cause this to happen??

Reptile [31]

Answer: The formula of Newtons second law of motion is F=MA so therefore it would be written like this Force = Mass X Acceleration

F = 5 x 2

F = 10 N

6 0

2 years ago