answer.
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
Kryger [21]
2 years ago
8

Calcular la resistencia de una varilla de grafito de 170 cm de longitud y 60 mm2. Resistividad grafito 3,5 10-5 Ωm

Physics
1 answer:
ozzi2 years ago
3 0

Answer:

R = 0.992 Ω

Explanation:

En esta pregunta, dada la información que contiene, debemos calcular la resistencia de la varilla de grafito.

Matemáticamente,

Resistencia = (resistividad * longitud) / Área De la pregunta;

Resistividad = 3,5 * 10 ^ -5 Ωm

longitud = 170 cm = 1,7 m

Área = 60 mm ^ 2 = 60/1000000 = 6 * 10 ^ -5 m ^ 2

Conectando estos valores a la ecuación anterior, tenemos;

Resistencia = (3.5 * 10 ^ -5 * 1.7) / (6 * 10 ^ -5) =

(3.5 * 1.7) / 6 = 0.992 Ω

You might be interested in
Explain why is not advisable to use small values of I in performing an experiment on refraction through a glass prism?
Svetradugi [14.3K]
Explain<span> why it is </span>not advisable to use small values<span> of incident ray in </span>performing experiment<span> on the</span>refraction through a glass prism<span>.</span>
6 0
2 years ago
Read 2 more answers
Nora tied a string around a tennis ball, and then she swung it in a circle in front of her to demonstrate a planet orbiting the
777dan777 [17]

<em>Choice-A </em>is a true statement. The string holding the ball in orbit is a contact force, whereas gravity is a non-contact force.

Choice-C is half-true.  The string keeps the distance between the bodies constant, but gravity doesn't "MAKE" the distance vary.

8 0
2 years ago
Read 2 more answers
An earth satellite in an elliptical orbit travels fastest when it is
Serggg [28]
ANY orbiting object travels fastest when it's closest to the central body.
4 0
2 years ago
Which one of the following statements is true concerning the magnitude of the electric field at a point in space? It is a measur
IceJOKER [234]

Answer:

It is a measure of the electric force per unit charge on a test charge.

Explanation:

The magnitude of the electric field is defined as the force per charge on the test charge.

Since we define electric field as the force per charge, it will have the units of  force divided by the unit of charge. This implies that the SI unit of electric field is given as Newton/Coulomb (N/C).

5 0
1 year ago
Spasticeesha throws a ball into the air. After the ball leaves her hand it accelerates in the upward direction until it reaches
Irina18 [472]

Answer:

E ) False.

Explanation:

When a body is thrown in upward direction , it accelerated in downward direction and not in upward direction . It is so because , force of gravitation acts in downward direction.

Even if some invisible force pulls it in upward direction , it may have an acceleration in upward direction .  In case it accelerates in upward direction, it will never stop so its maximum height will lie at infinity. In this way, the statement appears to be false.

3 0
2 years ago
Other questions:
  • Tyler stands at rest on a skateboard. He has a mass of 120 kg. His friend (m = 60 kg) jumps into his arms at a speed of 2 m/s. I
    8·1 answer
  • Which of the following ways is usable energy lost?
    14·2 answers
  • A 60.0 kg object is moving east at 8.00 m/s, and then slows down to 4.00 m/s. How much work was done?
    8·2 answers
  • Four students measured the acceleration of gravity. The accepted value for their location is 9.78 m/s2. Which student's measurem
    9·2 answers
  • A child wants to pump up a bicycle tire so that its pressure is 1.2 × 105 pa above that of atmospheric pressure. if the child us
    11·2 answers
  • a marine biologist wants to know the total vertical distance a dolphin travel during a jump with the surface of the water being
    9·2 answers
  • The Palo Verde nuclear power generator of Arizona has three reactors that have a combined generating capacity of 3.937×109 W . H
    14·1 answer
  • The energy stored in a wooden log transforms when the log is burned. Which of the following explanations BEST describes how the
    13·1 answer
  • Starting at t = 0 a net external force in the +x-direction is applied to an object that has mass 5.00 kg. A graph of the force a
    7·1 answer
  • Which of the following agricultural advancements have had unforeseen adverse effects?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!