All categories

3 years ago

What is atom and what are its particles

Physics

2 answers:

beks73 [17]3 years ago

6 0

Answer:

An atom is a smallest particle of an element.

Explanation:

It's particles are proton , electron and neutron.

MissTica3 years ago

3 0

Atoms are the building blocks of all matter and the smallest part of a chemical element. All matter, from our bodies and the air we breathe, the Eiffiel Tower, books,

Atoms are mostly empty space. At its center, there is a nucleus which is where the majority of its mass is located. Tiny particles called protons and neutrons make up the nucleus. Protons have a positive electric charge while neutrons don't have any charge. Electrons circle around the nucleus just like all the planets in our solar system orbit orbit around the brightest star in the sky, the sun.

You might be interested in

Ligaments are important because they provide joints with:

lora16 [44]

Answer:

the answer is B. it's too easy

4 0

3 years ago

The innermost satellite of jupiter orbits the planet with a radius of 422 × 103 km and a period of 1.77 days. what is the mass o

FinnZ [79.3K]

The mass of Jupitar is obtained from the calculations as 5.8 * 10^-14 Kg.

<h3>What is the mass of Jupitar?</h3>

There are nine planets in the solar system and the sun lies at the enter of our solar system. This is the heliocentric model of the solar system.

Given that;

T^2 = GMr^3/4π

T = period

G = gravitational constant

r = radius

M = mass of Jupitar

Now;

1 day = 86400 seconds

1.77 days = 1.77 days * 86400 seconds/1 day

= 152928 seconds

Making M the subject of the formula;

M =4πT^2/Gr^3

M = 4 * 3.142 * (152928)^2/6.67 × 10^-11 * (422 × 10^9)^3

M = 2.9 * 10^11/5.0 * 10^24

M = 5.8 * 10^-14 Kg

Learn more about mass of a planet:brainly.com/question/13851553

#SPJ1

5 0

2 years ago

An apparatus like the one Cavendish used to find G has large lead balls that are 8.4 kg in mass and small ones that are 0.061 kg

garik1379 [7]

Answer:

The gravitational force is $1.05\times10^{-8}\ N$

Explanation:

Given that,

Mass of large ball = 8.4 kg

Mass of small ball = 0.061 kg

Separation = 0.057 m

Gravitational constant $G= 6.67\times10^{-11}\ Nm^2/kg^2$

We need to calculate the gravitational force

Using formula of gravitational force

$F= \dfrac{Gm_{1}m_{2}}{r^2}$

Put the value into the formula

$F=\dfrac{6.67259\times10^{-11}\times8.4\times0.061}{(0.057)^2}$

$F=1.05\times10^{-8}\ N$

Hence, The gravitational force is $1.05\times10^{-8}\ N$

6 0

3 years ago

A wave with a frequency of 60 hertz would generate 60 wave crests every

VashaNatasha [74]

Answer:

A wave with a frequency of 60 hertz will have 60 successive wave crests occurring every second

Explanation:

A crest is the highest point the medium rises to in a wave. That means that the crest is a point on the wave where the displacement is at a maximum.

Frequency is the number of oscillations of a wave in one second. Hence, frequency of a wave is the number of successive crests occurring in a second.

Therefore a wave with a frequency of 60 hertz will have 60 successive wave crests occurring every second.

3 0

3 years ago

Which scientific theory explains that the universe originated from a small, country densely packed space?

andrey2020 [161]

<h2>Answer: The Big Bang theory</h2>

Explanation:

The Big Bang theory explains that billions of years ago, before the current universe was born, matter was concentrated in an infinitely small and highly dense point. Then, a large explosion caused this matter to expand in all directions, creating the universe we now know (including space and time).

In addition, this theory explains that our universe still continues its expansion process.

8 0

4 years ago