1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
puteri [66]
3 years ago
11

Which change is the best example of a physical change?

Physics
1 answer:
murzikaleks [220]3 years ago
3 0
The answer would be a nail rusting, but really it could be any of these.
You might be interested in
¿Qué resistencia debe ser conectada en paralelo con una de 20 Ω para hacer una
Lisa [10]

Answer:

La resistencia que debe ser conectada en paralelo con una de 20 Ω para hacer una  resistencia combinada de 15 Ω tiene un valor de 60 Ω

Explanation:

Las resistencias son aquellos dispositivos en los circuitos eléctricos que suelen emplearse para oponerse al paso de la corriente eléctrica.

Se denomina resistencia resultante o equivalente al valor de la resistencia que se obtiene al considerar un conjunto de ellas.

Cuando tenes resistencias en paralelo la corriente se divide y circula por varios caminos.

La resistencia equivalente de un circuito de resistencias en paralelo es igual al recíproco de la suma de los inversos de las resistencias individuales:

R=\frac{1}{\frac{1}{R_{1} } +\frac{1}{R_{2} } +...+\frac{1}{R_{N} }}

Esto también puede ser expresado como:

\frac{1}{R} =\frac{1}{R_{1} } +\frac{1}{R_{2} } +...+\frac{1}{R_{N} }

Entonces, en este caso sabes:

  • R= 15 Ω
  • R1= 20 Ω
  • R2=?

Reemplazando:

\frac{1}{15} =\frac{1}{20}+\frac{1}{R2}

y resolviendo:

\frac{1}{R2} =\frac{1}{15} -\frac{1}{20}

\frac{1}{R2} =\frac{1}{60}

se obtiene:

R2=60 Ω

<u><em>La resistencia que debe ser conectada en paralelo con una de 20 Ω para hacer una  resistencia combinada de 15 Ω tiene un valor de 60 Ω</em></u>

6 0
3 years ago
Why is my 2002 dodge caravan 3.3 liter disabling my electric components?
VARVARA [1.3K]
Alright guys I’m back sorry for being gone but I had to deal with stuff in my life like school and I had to do a lot of things at once so I didn’t have time to get on but I am officially now back!
8 0
3 years ago
What is net force explain with an example
xeze [42]

Answer:

Net force is the vector sum of forces acting on a particle or body. ... Its associated torque, the net force, becomes the resultant force and has the same effect on the rotational motion of the object as all actual forces taken together. It is possible for a system of forces to define a torque-free resultant force.

Explanation:

In a tug of war, a fat man pulls with a force of 100 N on one side, and a man pulls with 90 N on the other side. Compute the net force.

Solution:

Given:

Force F1= 100 N,

Force F2 = -90 N.

The net force formula is given by,

F_NET = F_1 + F_2F  

N

​  

ET=F  

1

​  

+F  

2

​  

 

F_NET = (100 ) +(– 90)F  

N

​  

ET=(100)+(–90)

F_NET= 10 NF  

N

​  

ET=10N

Therefore, the net force is 10 N.

4 0
3 years ago
Graphing data is most used to help you to observe_____ *
kotykmax [81]

Answer: Graphing data is used to display data because it is easier to see trends in the data when it is displayed visually compared to when it is displayed numerically in a table.

5 0
3 years ago
A number has a atomic number of 9 and an atomic mass of 19 amu. how many protons and how many neutrons are present in the atom
adelina 88 [10]
I think the answer to this is 28.
6 0
4 years ago
Other questions:
  • How does the mass of an object affect its inertia?
    7·1 answer
  • A spring whose spring constant is 850 N/m is compressed 0.40 m. What is the maximum speed it can give to a 500 g ball? ____m/s
    12·1 answer
  • A driver of a car traveling 12 m/s applies the breaks. After 2 seconds the speed drops to 8 m/s what is the cars acceleration?
    5·2 answers
  • When compared to coastal regions, solar energy extends ________ into the water column and concentrations of nutrients are ______
    15·1 answer
  • A free body diagram of a brick on an inclined plane is shown below. What is the mechanical advantage of the inclined plane?
    9·1 answer
  • An airplane flies 58 miles in 5 minutes. What is its average speed in miles per hour?
    11·2 answers
  • What are the negative aspects of using nuclear energy? Select all that apply.
    5·2 answers
  • Describe how fallacies can be created and spread
    12·1 answer
  • Describe how air resistance would affect a falling object ​
    14·1 answer
  • 1. A satellite (mass = 4.44 x 109 kg) travels in orbit around the Earth at a distance of 1.9 x 10'm above
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!