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leva [86]
3 years ago
14

What are two parts of an atom

Physics
1 answer:
seraphim [82]3 years ago
7 0

Answer:

Nucleus And electron cloud

Explanation:

Hope this helps

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---------is a gas law that describes the direct relationship between the volumes of a gas and the number of gas particles it con
Ad libitum [116K]

Answer:

The answer is Avogadro's Law.

Explanation:

Avogardo's law states that "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules." The derivation of Avogadro's law follows directly from the ideal gas law is:

P*V=n*R*T

where ;

V is the volume of the gas;

n is the amount of substance of the gas (measured in moles);

k is a constant for a given temperature and pressure

P is pressure of the environment

T is temperature of the environment

3 0
3 years ago
6) Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4
Studentka2010 [4]

Answer:

Amy's speed is 2/3 faster than Bill's

Explanation:

can't believe you don't know how to do this.

3 0
3 years ago
Physical activity increases your risk for coronary artery disease. true false
goldfiish [28.3K]

Answer:

false here is why :)

Explanation:

Regular, moderate-intensity physical activity reduces the risk of developing coronary heart disease and can reduce the likelihood of dying from heart disease.

hope this helped.

7 0
3 years ago
A force of 400-N pushes on a 25-kg box horizontally. The box accelerates at 9 m/s? Find the coefficient of kinetic friction betw
umka2103 [35]

Answer:

<h3>0.69</h3>

Explanation:

Using the Newtons law of motion;

\sum Fx = ma_x\\Fm - Ff = ma_x

Fm is the moving force = 400N

Ff is the frictional force = μR

μ is the coefficient of kinetic friction

R is the reaction = mg

m is the mass

a is the acceleration

The equation becomes;

Fm - \mu R = ma_x\\Fm - \mu mg = ma_x\\400- \mu (25)(9.8) = 25(9)\\400 - 254.8 \mu = 225\\- 254.8 \mu = 225 - 400\\- 254.8 \mu = -175\\ \mu = \frac{-175}{- 254.8} \\\mu = 0.69

Hence the coefficient of kinetic friction between the box and floor is 0.69

7 0
3 years ago
How many phase changes does ice undergo when it changes to water vapor in the water cycle?
Dmitriy789 [7]
Let's see.. 

- Melting
-Evaporation.

Two.
4 0
3 years ago
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