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
Slav-nsk [51]
2 years ago
15

You exert a 138 N push the leftmost of two identical blocks of mass 244 g connected by a spring of stiffness 605 kg/s2. After pu

shing the block a distance 15 cm, you release it; by this time the rightmost block has moved a distance 5 cm. (a) What is the energy in the oscillations between the blocks
Physics
1 answer:
Reil [10]2 years ago
6 0

Answer:

the energy in the oscillations between the blocks is 3.025 J

Explanation:

Given the data in the question;

Force f = 138 N

stiffness of spring k = 605 kg/s²

mass of block = 202 g = 0.202 kg

pushing the block a distance 15 cm, the rightmost block has moved a distance 5 cm

i.e

x₁ = 15 cm

x₂ = 5cm

the energy in the oscillations between the blocks will be;

E_A = E_B = \frac{1}{2}k( Δx )²

we substitute

= \frac{1}{2} × k( 15 - 5 )² × 10⁻⁴

= \frac{1}{2} × 605 × ( 10 )² × 10⁻⁴

= \frac{1}{2} × 605 × 100 × 10⁻⁴

= 3.025 J

Therefore, the energy in the oscillations between the blocks is 3.025 J

You might be interested in
A feather is dropped on the moon from a height of 1.40 meters. The acceleration due to gravity on the moon is 1.67 m/s2. Determi
RoseWind [281]

Distance = (1/2) (acceleration) (time)²

1.4m = (0.835 m/s²) (time)²

(time)² = (1.4/0.835) s²

<em>time = 1.295 s</em>

7 0
3 years ago
In a candy factory, the nutty chocolate bars contain 20.0 % pecans by mass. If 4.0 kg of pecans were used for candy last Tuesday
ladessa [460]

Answer:

44.09 pounds

Explanation:

We got that 20 % of the mass of a nutty chocolate bar its pecans, if 4.0 kg of pecans were used, we need to find the X in the equation

0.2 * X = 4.0 \ kg

where X its the total mass of nutty chocolate bars produced. So, we can just divide by 0.2 on both sides, and we find:

X = 4.0 kg / 0.2

X = 20.0 \ kg

Of course, we need the total mass produced in pounds, and not in kilograms.  Looking at an conversion table, we can find that 1 kg its 2.20462 pounds, multiplying the value for total mass produced by the conversion factor we get:

X = 20.0 \ kg * 2.20462 \ \frac{pounds}{kg}

X = 44.0924 \ pounds

Now, we just need to round off to two significant figures. This is:

X = 44.09 \ pounds,

the total mass of nutty chocolate bars  made last Tuesday to two significant figures.

5 0
3 years ago
Friction occurs when microscopic hills and valleys stick together<br><br> true or false
Reika [66]

Answer:

true

Explanation:

Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

4 0
2 years ago
Read 2 more answers
What material structure explanation lies behind the fact that the propagation velocity of longitudinal waves is the lowest in ga
Lina20 [59]

Answer:

What material structure explanation lies behind the fact that the propagation velocity of longitudinal waves is the lowest in gases and the highest in solids?

8 0
2 years ago
During the deceleration of an ascending elevator, the normal force on the feet of a passenger is _____ her weight. During the de
gizmo_the_mogwai [7]

Answer: Smaller than ; larger than

Explanation:

When the elevator is moving in the upward direction, then the force acting on it is negative in nature because of

N= mg +ma, (g is gravity and a is acceleration)

here ma is negative so the N= mg-ma

Hence, it feels smaller than its original weight.

When the elevator is moving downward , then the force acting will be positive in nature

N= mg+ma,

here ma will be positive so it feels larger the original weight of passenger.

7 0
2 years ago
Other questions:
  • Technician A states that accidents avoidance is an additional feature on some electronic stability control systems. Technician B
    7·1 answer
  • A spring has a spring constant of 115 N/m. How much energy is stored in the
    9·2 answers
  • In which situation is no work being done?
    8·1 answer
  • What is the thermal efficiency a carnot engine operating between the highest and lowest temperatures reached by this engine?
    6·1 answer
  • What causes a ray of white light to split into seven colors when passed through a prism? A. refraction B. reflection C. filterin
    7·2 answers
  • Can someone please tell me how to solve the question below. Thank you!! If 550-nm light is incident normally on a diffraction gr
    10·1 answer
  • "A pendulum is pulled back from its equilibrium (center) position and then released. When the pendulum bob is halfway between th
    11·1 answer
  • The outer core is thought to be a solid layer of the Earth's core. <br><br> True or False?
    5·2 answers
  • Pls someone help me
    7·1 answer
  • One of the major differences between our common Physics models of energy change and realistic models of them is:
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!