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
STatiana [176]
3 years ago
13

A horizontal spring with stiffness 0.5 N/m has a relaxed length of 19 cm (0.19 m). A mass of 22 grams (0.022 kg) is attached and

you stretch the spring to a total length of 26 cm (0.26 m). The mass is then released from rest. What is the speed of the mass at the moment when the spring returns to its relaxed length of 19 cm (0.19 m)?
Physics
1 answer:
lawyer [7]3 years ago
6 0

Answer:

 v = 0.0147 m / s

Explanation:

For this exercise let's use energy conservation

Starting point. Fully stretched spring

            Em₀ = Ke = ½ k (x-x₀)²

Final point. Unstretched position

          Emf = K = ½ m v²

          Emo = Emf

         ½ k (x- x₀)² = ½ m v²

           v = √m/k    (x-x₀)

Let's calculate

            v = √(0.022 / 0.5)      (0.26-0.19)

            v = 0.0147 m / s

You might be interested in
Enumerar 5 actividades en casa o en el trabajo en la que usualmente se mantenga una postura corporal incorrecta
ludmilkaskok [199]

Answer:

Existen cinco actividades en las que se mantiene una postura corporal incorrecta:

1) Sentarse en una silla.

2) Agacharse y levantar una objeto del piso, especialmente cuando es pesado.

3) Sentarse en un escritorio, especialmente frente a una computadora.

4) Llevar una mochila, especialmente si está sobrecargada.

5) Dormir sobre una cama en una posición inadecuada.

Explanation:

Existen cinco actividades en las que se mantiene una postura corporal incorrecta:

1) Sentarse en una silla.

2) Agacharse y levantar una objeto del piso, especialmente cuando es pesado.

3) Sentarse en un escritorio, especialmente frente a una computadora.

4) Llevar una mochila, especialmente si está sobrecargada.

5) Dormir sobre una cama en una posición inadecuada.

5 0
3 years ago
Which does a reference point provide
mr_godi [17]
Point of reference - an indicator that orients you generally; "it is used as a reference for comparing the heating and the electrical energy involved"
5 0
3 years ago
Plants absorb WHAT from the atmosphere and release WHAT to the atmosphere.
makvit [3.9K]
Plants absorb water and release o2
6 0
3 years ago
Read 2 more answers
A small asteroid with a mass of 1500 kg moves near the earth. At a particular instant the asteroid’s velocity is ⟨3.5 × 104, −1.
zalisa [80]

Answer:

P_{f} =(5.7 x 10^{7 i - 2.24 x 10^{7 j) kgm/s

Explanation:

Due to earths gravity, force on asteroid is given by:

F= \frac{Gm_{1}m_{2} }{r^{2} } r^

Plugging in the values, we have

F= [(6.67x10^{-11})(1500)(5.97 x 10^{24})(8x10^{6}i + 9x10^{6 j)] / ((8x10^{6})² + (9x10^{6 )²)^{1.5}

F= 2736 i^ + 3078 j^

In order find the final momentum of the Asteroid, apply impulse momentum theorem

P_{f} = P_{i + FΔt

P_{f} = 1500(3.5 x 10^{4 i - 1.8x10^{4 j) + (2736i + 3078j)(1.5x10^{3)

P_{f} =(5.7 x 10^{7  i- 2.24 x 10^{7 j)kgm/s

4 0
4 years ago
What is the formula of kinetics?​
snow_lady [41]

Answer:

KE = 1/2 mv v^{2}

Explanation:

Sorry if this didn't helped you.

4 0
3 years ago
Other questions:
  • A parallel plate capacitor contains a positively charged plate on the left, and a negatively charged plate on the right. An elec
    5·1 answer
  • Pluto's orbit brings it inside the orbit of _____.<br><br> Neptune<br> Saturn<br> Venus<br> Uranus
    15·2 answers
  • The oxygen molecule, O2, has a total mass of 5.30×10-26 kg and a rotational inertia of 1.94×10-46 kg-m2 about an axis perpendicu
    13·1 answer
  • A disk rotates freely on a vertical axis with an angular velocity of 50 rpm . An identical disk rotates above it in the same dir
    5·1 answer
  • Define Miller index, and the recipe for how to find the Miller index for a particular lattice plane
    12·1 answer
  • When two mechanical waves have a displacement in opposite directions, and they overlap, what will the resulting wave look like a
    15·2 answers
  • Two swimmers A and B, of weight 190 lb and 125 lb, respectively, are at diagonally opposite corners of a floating raft when they
    8·1 answer
  • If gravity is the only force present, what is the total mechanical energy of a
    15·1 answer
  • Question about generators and electrical currents. Please, no absurd answers! Thank you
    11·2 answers
  • this bar is 0.12 meters long and moving 29.6 m/s through a magnetic field of 58 mt. what is the induced electromotive force in t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!