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3 years ago

Which statements best describe the atoms of the gas neon? Check all that apply.

Physics

2 answers:

Anni [7]3 years ago

5 0

What are the statements?

RUDIKE [14]3 years ago

4 0

Answer;

They move at high speeds.

They move freely in all directions.

They move constantly.

They are far apart.

Explanation;

-Neon is a chemical element with symbol Ne and atomic number 10, which means an atom of neon has 10 electrons and 10 proton. It is a noble gas.

-Neon is a colorless, odorless, inert monatomic gas under standard conditions.

- Neon is a light, very inert gas as it does not form compounds with other substances and is odorless. Neon glows when a high electrical voltage is passed through it.

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The weight of a metal bracelet is measured to be 0.10400 N in air and 0.08400 N when immersed in water. Find its density.

Anna007 [38]

Answer:

The density of the metal is 5200 kg/m³.

Explanation:

Given that,

Weight in air= 0.10400 N

Weight in water = 0.08400 N

We need to calculate the density of metal

Let $\rho_{m}$ be the density of metal and $\rho_{w}$ be the density of water is 1000kg/m³.

V is volume of solid.

The weight of metal in air is

$W =0.10400\ N$

$mg=0.10400$

$\rho V g=0.10400$

$Vg=\dfrac{0.10400}{\rho_{m}}$ .....(I)

The weight of metal in water is

Using buoyancy force

$F_{b}=0.10400-0.08400$

$F_{b}=0.02\ N$

We know that,

$F_{b}=\rho_{w} V g$ ....(I)

Put the value of $F_{b}$ in equation (I)

$\rho_{w} Vg=0.02$

Put the value of Vg in equation (II)

$\rho_{w}\times\dfrac{0.10400}{\rho_{m}}=0.02$

$1000\times\dfrac{0.10400}{0.02}=\rho_{m}$

$\rho_{m}=5200\ kg/m^3$

Hence, The density of the metal is 5200 kg/m³.

6 0

3 years ago

Electromagnetic radiation consists of particles called:

Westkost [7]

Photons are particles of electromagnetic radiation.

8 0

3 years ago

What causes the rider on a roller coaster to experience the + or - g’s if gravity always remains the same on earth

MA_775_DIABLO [31]

Answer:

Yes both = and - g can be felt by a rider in a roller coaster.

Explanation:

It is crucial to understand how we feel gravity in this case.

We humans have no sensory organs to directly detect magnitude and direction like some birds and other creatures, but then how do we we feel gravity?

When we stand on our feet we feel our weight due to the normal reaction of floor on our feet trying to keep us stand and our weight trying to crush us down. In an elevator we feel difference in our weight (difference magnitudes of gravity) but actually we are feeling the differences in normal reactions under different accelerations of the elevator.

In the case of roller coaster you will feel +g as you sit on a chair in it, but will feel -g when you are in upside down position as roller coaster move.

When you are seated you will feel the normal reaction of seat on you giving you the feeling +g and the support of the buckles to stay in the roller coaster when you are upside down will give you the -g feeling.

<u>This is just the physics approach</u>, a biological approach can be given in association with sensors relating to ears.

8 0

3 years ago

Mountain Ecosystems Assignment Answer each question below in complete sentences.1) Identify a predator from an Ethiopian Highlan

Marta_Voda [28]

An example of a a predator in the Ethiopian Highlands ecosystem is the

Wolf.The wolf is a carnivore which acts as a predator to other smaller

animals in the ecosystem.

Preys are mostly smaller animals in which the predators feed on for food.

They are usually herbivores and primary consumers in the ecosystem.

Examples of Preys include:

Rodents

Deer

Bison etc.

Read more about Feeding relationship here brainly.com/question/9852437

8 0

2 years ago

calculate the distance in km that alex can run in 2.0 hours if she maintains the constant average speed of 8.00 km/h

Tema [17]

16 kilometers is the answer i came up with. hope this helps.

4 0

4 years ago