What happens when you sit in a chair?

How does a substance's temperatura chanté when the average kinetic energy of its particles increases? When it decreases?

Aleks [24]

Kinetic energy means movement. This means that the more something moves, the more kinetic energy it will have! And the faster something moves, the more heat it produces! Altogether, this means that the more Kinetic energy something has, the hotter it will be!

The opposite is also true. The less something moves, it will have less Kinetic energy and the colder it will get.

If you're having trouble understanding this, think of it like how the particles in water move compared to how the particles in ice move. The particles in water are free flowing and can move wherever they want. If they get colder, they won't move as much, and eventually they'll stop flowing around, forming a solid and staying colder than the water will get.

7 0

3 years ago

The weakest gravitational force caused by the Moon is called the __________, which is found at the point on Earth farthest from

skad [1K]

This is called Nadir.

4 0

2 years ago

Place thermometers near the edge of the table for easy retrieval.

Maurinko [17]

This is a true and false question correct or did you accidentally put two truths ??

7 0

3 years ago

An incompressible fluid is flowing through a horizontal pipe with a constriction. The velocity of the fluid in the wide section

lapo4ka [179]

The Bermoulli's equation allows us to find the pressure in the narrow part of the pipe through which water circulates is:

P = 500 Pa

Bernoulli's equation is the work-energy relationship for fluids that are liquids and gases.

$P_1 + \frac{1}{2} \rho v_1^2 + \rho g y_1 = P2 + \frac{1}{2} \rho v_2^2 + \rho g y_2$

Where the subscripts 1 and 2 represent points of interest, P is the pressure, ρ the density of the fluid, v the velocity and y the height.

They indicate that the pipe is horizontal, that the pressure in the wide part P₁ = 200 kPa and the velocity is v₁ = 5 m / s and in the narrow part v₂=8.00 m/s, see attached.

Since the pipe is horizontal y₁ = y₂

P₁ + ½ ρ v₁² = P₂ + ½ ρ v₂²

P₂ = P₁ + ½ ρ (v₁² - v₂²)

Let's calculate

P₂ = 200 10² + ½ ρ (5² - 8²)

P₂ = 2 10⁴ - 19.5 ρ

For a specific calculation the value of the density of the fluid is needed, suppose that the fluid is water ρ = 1000 kg / m³

P₂ = 2 10² - 19.5 1000

P₂ = 500 Pa

In conclusion using the Bermoulli equation we can find the pressure in the narrow part of the pipe through which water circulates is:

P = 500 Pa

Learn more here: brainly.com/question/9506577

3 0

3 years ago

Why would ash from a volcano make the temperature drop?

Komok [63]

First, volcanic eruptions produce major quantities of carbon dioxide (CO2), a gas known to contribute to the greenhouse effect. ... The small ash particles decrease the amount of sunlight reaching the surface of the earth and lower average global temperatures.

7 0

3 years ago