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3 years ago

Is boiling a pot of water an example of Thermodynamics?

Physics

1 answer:

garri49 [273]3 years ago

7 0

Answer: I think I have the answer to your problem!!

A pot of boiling water is a nice everyday example to explain internal energy, heat, and work. However, it's not a good choice for applying the first law of thermodynamics, because the boiling pot isn't a closed system.

Explanation:

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Anon25 [30]

A transverse wave is characterized by peaks and dips.

6 0

4 years ago

Read 2 more answers

If cake baking is compared to protein synthesis, what genetic structure would be analogous to the flour, sugar, and eggs?

galina1969 [7]

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7 0

3 years ago

A 1459 kg car is traveling WEST at 43 m/s. A 9755 kg truck is traveling EAST at 11 m/s. They collide head-on, and stick together

otez555 [7]

Answer:

Both vehicles move east at 3.97 m/s

Explanation:

Law Of Conservation Of Linear Momentum

It states that the total momentum of a system of bodies is conserved unless an external force is applied to it. The formula for the momentum of a body with mass m and speed v is:

P=mv.

If we have a system of two bodies, then the total momentum is the sum of both momentums:

$P=m_1v_1+m_2v_2$

If a collision occurs and the velocities change to v', the final momentum is:

$P'=m_1v'_1+m_2v'_2$

Since the total momentum is conserved, then:

P = P'

$m_1v_1+m_2v_2=m_1v'_1+m_2v'_2$

Assume both masses stick together after the collision at a common speed v', then:

$m_1v_1+m_2v_2=(m_1+m_2)v'$

The common velocity after this situation is:

$\displaystyle v'=\frac{m_1v_1+m_2v_2}{m_1+m_2}$

Assuming east direction to be positive, we have an m1=1459 kg car traveling west at v1=-43 m/s. An m2=9755 kg truck is traveling east at v2=11 m/s. They collide head-on and stick together after that.

Computing the resultant velocity after the collision:

$\displaystyle v'=\frac{1459*(-43)+9755*11}{1459+9755}$

$\displaystyle v'=\frac{44568}{11214}$

v' = 3.97 m/s

Both vehicles move east at 3.97 m/s

4 0

3 years ago

What is natural magnets and artificial magnets ? give examples

Luden [163]

NATURAL MAGNETS

A natural magnet is one that occurs naturally in nature. All natural magnet are permanent magnets , meaning they never lose their magnetic power.

Natural magnet can be found in Sandy deposits in various part of the earth .

The strongest natural magnetic material is LODESTONE also called magnetite.

ARTIFICIAL MAGNETS

These are magnets made by people.

It's these magnets that is in our refrigerator doors, which have extra-stronge magnetic power. There are two types of of artificial magnets. Temporary and Permanent Magnets.

Examples of artificial magnets are; electromagnet and the paper clip.

Examples of Permanent Magnets are; Alnico

4 0

3 years ago

hich of the following statements are true for magnetic force acting on a current-carrying wire in a uniform magnetic field?Check

leonid [27]

Explanation:

The magnetic force acting on a current carrying wire in a uniform magnetic field is given by :

$F=I(L\times B)$

$F=ILB\ sin\theta$

Where

$\theta$ is the angle between length and the magnetic field

The magnetic force is perpendicular to both current and magnetic field. It is maximum when it is perpendicular to both current and magnetic field.

So, the correct options are :

The magnetic force on the current-carrying wire is strongest when the current is perpendicular to the magnetic field lines.
.The direction of the magnetic force acting on a current-carrying wire in a uniform magnetic field is perpendicular to the direction of the field.
The direction of the magnetic force acting on a current-carrying wire in a uniform magnetic field is perpendicular to the direction of the current.

7 0

4 years ago