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
olya-2409 [2.1K]
2 years ago
15

Three identical 6.67-kg masses hang at rest from three identical springs, numbered as in the figure. Each spring has an unstretc

hed length of 0.23 m and a spring constant of 8.13 kN/m. How long, L , is spring 2?
[Hint: Draw some FBDs and apply Newton's second law. Remember to account for both the spring's stretch and its unstretched length.]

Physics
1 answer:
Karolina [17]2 years ago
5 0

The length of the spring 2 due to arrangement of the equal masses is determined as 0.238 m.

<h3>Extension of the spring 2</h3>

The extension of the spring 2 is determined from the net force acting on spring 2.

F(net) = Kx

<em>Net force on spring 2 = sum of forces acting downwards - sum of forces acting upwards.</em>

Net force on spring 2 = (force on 2 + force on 3) - (force on 1)

F(net) = (m₂ + m₃)g - (m₁)g

F(net) = (6.67 + 6.67)9.8  -  (6.67)9.8

F(net) = 130.732 - 65.366

F(net) = 65.366 N

x = F/k

x = (65.366)/(8130)

x = 0.00804 m

The length of spring 2 = x + 0.23 m

                                     = 0.00804 m + 0.23 m = 0.238 m

Thus, the length of the spring 2 due to arrangement of the equal masses is determined as 0.238 m.

Learn more about extension of elastic material here: brainly.com/question/26838571

You might be interested in
A 5,000 kg truck moving at 8 m/s has the same momentum as a 2,500 kg car. What is the velocity of
a_sh-v [17]

Answer:

16m/s

Explanation:

Mv=mv

5000x8=2500x v

V=5000x8/2500

V=40000/2500

= 16m/s

8 0
2 years ago
When electric current is flowing in a metal, the electrons are movinga. at nearly the speed of light.b. at the speed of sound in
yaroslaw [1]

Answer:

Option (d)

Explanation:

The electrons in a conductor moves with the drift velocity when the electric current is flowing through the conductor.

The drift velocity is due to the applied electric field across the conductor.

8 0
3 years ago
Question 11 of 11 | Page 11 of 11
KiRa [710]

Answer:

Decreases the time period of revolution

Explanation:

The time period of Cygnus X-1 orbiting a massive star is 5.6 days.

The orbital velocity of a planet is given by the formula,

                                        v = √[GM/(R + h)]

In the case of rotational motion, v = (R +h)ω

                                         ω = √[GM/(R + h)] /(R +h)

Where 'ω' is the angular velocity of the planet

The time period of rotational motion is,

                                     T = 2π/ω

By substitution,

                                      <em>T = 2π(R +h)√[(R + h)/GM] </em>

Hence, from the above equation, if the mass of the star is greater, the gravitational force between them is greater. This would reduce the time period of revolution of the planet.

3 0
3 years ago
Give two examples of gravity in the solar system
Nikolay [14]
The planets revolving around the sun, The moon revolving around the Earth.

6 0
3 years ago
A sample of a solid nonmetal is compared to a sample of a solid metal. Both samples have the same volume. What is the most likel
KATRIN_1 [288]
The weight could be different, metals have a higher mass than nonmetals, so when occupying the same amount of space, the weight of the metal is far more.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is created when the ice of a comet starts to melt into gases?
    12·1 answer
  • A 40.0-$kg$ body is moving in the direction of the positive x axis with a speed of 238 $m/s$ when, owing to an internal explosio
    10·1 answer
  • What is the measurement of electrical pressure?
    14·1 answer
  • Please Help! A ball is thrown straight up from the ground. What way does its acceleration point at the top?
    12·1 answer
  • What is force magnifier​
    11·1 answer
  • A conducting sphere contains positive charge distributed uniformly over its surface. Which statements about the potential due to
    6·1 answer
  • The length of a brick is 30cm,breadth 20 cm and volume 9000 cm³.Find the height of the brick.
    11·1 answer
  • A 0.017-kg acorn falls from a position in an oak tree that is 18.5 meters above the ground. Calculate the velocity of the acorn
    15·1 answer
  • Ewxrdctfvgybhjnkml,;kjffff
    14·1 answer
  • The learning about Universe is<br> called ________ ...​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!