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
Veseljchak [2.6K]
2 years ago
8

Two identical 0.50-kg carts, each 0.10 m long, are at rest on a low-friction track and are connected by a spring that is initial

ly at its relaxed length of 0.50 m and is of negligible inertia. You give the cart on the left a push to the right (that is, toward the other cart), exerting a constant 6.0-N force. You stop pushing at the instant when the cart has moved 0.60m . At this instant, the relative velocity of the two carts is zero and the spring is compressed to a length of 0.30 m. A locking mechanism keeps the spring compressed, and the two carts continue moving to the right. By what amount do you change the system's kinetic energy?
Physics
1 answer:
Keith_Richards [23]2 years ago
8 0

Answer:

The system's kinetic energy changes by 3.6 J

Explanation:

The given parameters are;

The number of cart = 2

The mass of each cart = 0.5kg

The initial length of the spring = 0.50 m

The final length of the spring =T0.3 m

The change in position of the first cart = 0.6 m

The energy given to the first cart = Work done by the force = Force × Displacement

The initial kinetic energy of the two cart moving together = Energy given to the first cart = 6.0 × 0.2 = 1.2J

The kinetic energy given to the two cart combined = The applied force × The total displacement of the two cart as they move together

The kinetic energy given to the two cart combined = 6.0 × (0.6 - 0.2)

The kinetic energy given to the two cart combined = 6.0 × 0.4 = 2.4 J

The total kinetic energy given to the two cart = 1.2 + 2.4 = 3.6 J

The total kinetic energy given to the two cart = 3.6 J

The system's kinetic energy changes by 3.6 J.

You might be interested in
Is this right?? please help me. IT IS SOCIOLOGY!!
Westkost [7]

Answer:

Yes, it is correct : )

Explanation:

Hope this helps!

8 0
2 years ago
Read 2 more answers
A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, typically 2
butalik [34]

Answer:        

Number of turns in secondary will be 7

Explanation:

We have given primary voltage V_p=120volt

Number of turns in the primary is N_p=3575

Secondary voltage is given V_s=235mV=0.235volt

We have to find the number of turns in secondary

We know that \frac{N_p}{N_s}=\frac{V_p}{V_s}

So \frac{3575}{N_s}=\frac{120}{0.235}

N_s=6.60

As the number of turns can not be in decimal so number of turns will be 7

6 0
3 years ago
1. li took 2 } seconds for a car's vclocity to change from 20 m/s to 15 m/s. The mass of the car was 1370 kg. What force was req
Pani-rosa [81]

Answer:

Do you still need help??

Explanation:

3 0
3 years ago
Stella's respiratory system is not working well why is this a problem for her ability to exercise
GarryVolchara [31]

Explanation:

Her cells will not work well when they have low levels of oxygen.

4 0
3 years ago
Any help with these? I’ve tried to answer some but I’m really confused.
Eva8 [605]

Top left: The slope of the line gives the (constant) acceleration of the moving object because the plot describes the velocity of some moving object. It's hard to tell what points the line passes through in the picture you took, but whatever slope/acceleration you find, that value will stay the same regardless of the time.

Top middle: The slope of the line is negative, which means acceleration has a negative sign. And because the line describes velocity over time, the fact that velocity is linear means that acceleration is constant.

Top right: The acceleration is the slope of the tangent line to the parabola at t=10. You can visually confirm that the slope of this line would be positive. Now, the average velocity between t=10 and t=11 is

\bar a=\dfrac{v(11)-v(10)}{11-10}\approx16-14=2

Judging by the plot, 2\,\dfrac{\mathrm m}{\mathrm s^2} seems like a pretty reasonable choice among the answers.

Bottom left: The slope of the tangent line at any point on the plot would be negative. Because velocity is non-linear, a will not be constant.

Bottom middle: Opposite situation as in [bottom left].

Bottom right: The acceleration can only be negative for t, which means t=2\,\mathrm s must be the correct answer.

7 0
3 years ago
Other questions:
  • Two identical cars collide head on. Each car is traveling at 100 km/h. The impact force on each car is the same as hitting a sol
    13·1 answer
  • A car initally at rest accelerates in a straight line at 3 m/s2 what will be its speed after 2 seconds
    12·1 answer
  • What were four of Galileo’s discoveries that were important to astronomy?
    13·1 answer
  • A 5.0-kg rabbit and a 12-kg Irish setter have the same kinetic energy. If the setter is running at speed 4.9 m/s, how fast is th
    7·1 answer
  • Descreva sucintamente como ocorre a formação do raio x pela ampola ou tubo
    6·1 answer
  • Find the angle of prism if the ray just fail to emerge from 2nd face When ray of light falls normallly on the face of prism of R
    7·1 answer
  • What value is needed to create a motion diagram? a. position c. time interval b. velocity d. both a and c
    8·1 answer
  • One clue we can observe that means a chemical reaction has occurred is the formation of light. What is one chemical reaction you
    7·1 answer
  • If an object's surface area is smaller does it create more or less pressure?
    9·1 answer
  • The Gulf Stream has a cooling effect on the climate of nearby land areas. True or False
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!