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4 years ago

What do conduction, radiation, and convection work together to do?

1 answer:

6 0

Well, conduction is the passing of heat by touch. Convection is the passing along of heat by movement (e.g. hot air rising from a radiator to heat the rest of the room), and radiation is the heating of something through electromagnetic rays without any contact. For example, the earth absorbs the heat radiated from the son (radiation). The air that touches the earth gets warmed up (conduction), and rises, and as it rises, it passes its heat along to more air around it (convection).

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A piston releases 18 J of heat into its surroundings while expanding from 0.0002 m^3 to 0.0006 m^3 at a constant pressure of 1.0

Elodia [21]

Answer:

value of heat is 18 J

2. step by step

formular w=p(volume1-volume2)

w= 1.0×10^5(0.0006-0.0004)

w= 40 J

8 0

3 years ago

Action and reaction forces are described by which of Newton's laws of motion?

Ilia_Sergeevich [38]

Answer:

The first one

Explanation:

4 0

4 years ago

Read 2 more answers

Give v=120m/s north and t = 10.2, calculate the displacement

Sedbober [7]

Answer:

Displacement from the starting position is 1224m

Explanation:

The object is moving at 120 meters per second, it does this for 10.2 seconds. Use multiplication to find the answer.

$120 \times 10.2 = 1224$

4 0

3 years ago

A periodic wave travels from one medium to another. Which pair of variables are likely to change in the process?

Travka [436]

A velocity and wavelength

Explanation:

When a periodic wave travels from one medium to another, its velocity and wavelength changes in the process.

A periodic wave is a wave with repeating pattern.

When a wave crosses different medium with different densities, their velocity and wavelength changes.
This implies that wave causes disturbances in different ways.
This change in wavelength and velocity as a wave crosses two medium is known as refraction.
When a wave moves from a less dense medium to a denser one, the velocity reduces and the wavelength increases.

learn more:

Refraction brainly.com/question/12370040

#learnwithBrainly

4 0

4 years ago

A single conservative force acts on a 5.30-kg particle within a system due to its interaction with the rest of the system. The e

cupoosta [38]

Answer:

Given that

m = 5.3 kg

Fx = 2x + 4

We know that work done by force F given as

w= ∫ F. dx

Given that x=1.08 m to x=6.5 m

Fx = 2x + 4

w= ∫ F. dx

$w=\int_{1.08}^{6.5}(2x+4) .dx$

$w=\left [x^2+4x \right ]_{1.08}^{6.5}$

$w=(6.5^2-1.08^2)+4(6.5-1.08)\ J$

w=62.7 J

We know that potential energy given as

$F=-\dfrac{dU}{dx}$

∫ dU = -∫F.dx ( w= ∫ F. dx)

ΔU= -62.7 J

We know that form work power energy theorem

Net work = Change in kinetic energy

W= KE₂ - KE₁

62.7 =KE₂ - (1/2)x 5.3 x 3²

KE₂ = 86.55 J

This is the kinetic energy at 6.5m

8 0

3 years ago