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
Elena L [17]
3 years ago
8

The free length of the spring that is attached to the 0.3-lb slider is 3 in. If the slider is released from rest when x = 6 in.,

calculate its initial acceleration. Neglect friction.
Physics
1 answer:
hichkok12 [17]3 years ago
5 0

Answer:

a = 64 ft / s²

Explanation:

The force in a spring is given by Hooke's law

          F = -k x

Let's use the initial data to calculate the spring constant

         k = F / x

Reduscate to the English system

          x = 3 in (1foot/12 in) =0.25 foot

         k = 0.3 / 0.25

         k = 1.2  lb / foot

Now we can use Newton's second law

        F = ma

        a = F / m

        a = -k x / m

        m = w / g

        m = 0.3 / 32 = 0.009375

         x= 6 in (1foot /12 in)= 0.5 foot

        a = - 1.2  0.5  / 0.009375

        a = 64 ft / s²

You might be interested in
Will you travel in 3.0 minutes running at a rate of 6.0 m/s
aalyn [17]

Answer:

1080 meters

Explanation:

60sec in 1 minute

So, 3x60=180

  • 6m/s (one second is 6 meters)

So, 6x180=1080 meters

5 0
3 years ago
What are rocks formed from sediment called?
kherson [118]

a rock that is formed form sediments is called sedimentary rocks

please give brainlyist if correct

5 0
3 years ago
Read 2 more answers
A long distance runner sees the finish line and accelerates at a rate in 1.2 m/s2 for
Nuetrik [128]

Answer: he did travel 15 meters.

Explanation:

We have the data:

Acceleration = a = 1.2 m/s^2

Time lapes = 3 seconds

Initial speed = 3.2 m/s.

Then we start writing the acceleration:

a(t) = 1.2 m/s^2

now for the velocity, we integrate over time:

v(t) = (1.2 m/s^2)*t + v0

with v0 = 3.2 m/s

v(t) = (1.2 m/s^2)*t + 3.2 m/s

For the position, we integrate again.

p(t) = (1/2)*(1.2 m/s^2)*t^2 + 3.2m/s*t + p0

Because we want to know the displacementin those 3 seconds ( p(3s) - p(0s)) we can use p0 = 0m

Then the displacement at t = 3s will be equal to p(3s).

p(3s) = (1/2)*(1.2 m/s^2)*(3s)^2 + 3.2m/s*3s = 15m

6 0
3 years ago
Describe J.J Thomson's plum pudding model,and explain how it compares to the modern day atomic theory.​
juin [17]

The correct answer to this open question is the following.

The J.J Thomson's plum pudding model establishes that when he researched the atom, he found that electrons are positively charged. Because he observed that electrons were embedded like plums. Electrons are negative. However, compared to the modern-day atomic theory, scientist Ernest Rutherford established that the space between an atom is empty, the nucleus of the atom is positive, and negative electrons have fixed motion paths.

8 0
3 years ago
Read 2 more answers
Which is true about atoms?
tiny-mole [99]

Answer:

A

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • List the three products of radioactive decay from the most penetrating to the least penetrating
    6·1 answer
  • How does the Earth's Tilt affect the Earth
    15·1 answer
  • Which of the following graphs correctly represents the relationship between the pressure and the volume of an ideal gas that is
    14·2 answers
  • If a man has a mass of 83 kg on Earth what will the force of gravity on his body be on the moon
    14·2 answers
  • A particle moving along the y-axis has the potential energy u =4y3j, where y is in m. what is the y-component of the force on th
    13·1 answer
  • A 5 kg ball travels at a velocity of 10 m/s, what is the momentum of the ball
    12·2 answers
  • An LDR was placed near a light source. The following results were
    13·1 answer
  • As fuel is burned in an electrical generator, the chemical energy of the fuel is converted into thermal energy that is used to b
    5·1 answer
  • The 75.0 kg hero of a movie is pulled upward with a constant acceleration of 2.00 m/s2 by a rope. What is the tension on the rop
    8·1 answer
  • What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 525 c
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!