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
OLga [1]
3 years ago
7

What is the length of a spring that has 450J of potential energy and a spring constant of 650N/m?

Physics
1 answer:
11111nata11111 [884]3 years ago
4 0

Answer:

Δx = 1.2 m

Explanation:

The CHANGE of spring length) (Δx) can be found using PS = ½kΔx²

Δx = √(2PS/k) = √(2(450)/650) = 1.17669... ≈ 1.2 m

The actual length of the spring is unknown as it varies with material type, construction method, extension or compression, and other variables we have no clue about.

You might be interested in
50200 J of heat are removed from
Dmitry_Shevchenko [17]

Correct Answer:

3.1375

Explanation:

Use equation Q=mcΔT to find m

Plug in all variables -50200=x\cdot 2000\cdot -8

Answer: 3.1375

4 0
3 years ago
Convert 13.1 miles to feet. Using one step conversion
Marat540 [252]

Answer:

69,168 ft

Explanation:

6 0
3 years ago
A 0.10-kg ball, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19 m/s. What is the 7) magnitude of the change
IRISSAK [1]

Answer:

Change in momentum will be -4.4 kgm/sec

So option (A) is correct option

Explanation:

Mass of the ball is given m = 0.10 kg

Initial velocity of ball v_1=25m/sec

And velocity after rebound v_2=-19m/sec

We have to find the change in momentum

So change in momentum is equal to =m(v_2-v_1)=0.1\times (-19-25)=-4.4kgm/sec ( here negative sign shows only direction )

So option (A) will be correct answer

5 0
2 years ago
Compare a wedge and a screw with an inclined plane
Jlenok [28]

a wedge is a small inclined plane

a screw is an inclined lane wkich goes round a centrral axis  ... like a 'spiral' or helical staircase


easier per step ... more steps

3 0
2 years ago
Where does most of earths available carbon come from
cupoosta [38]
Rocks and sediments I believe
6 0
3 years ago
Other questions:
  • Modern wind turbines generate electricity from wind power. The large, massive blades have a large moment of inertia and carry a
    9·1 answer
  • Which equation shows the correct relationship between mechanical energy, kinetic energy, and potential energy
    8·2 answers
  • A transformer is to be used to provide power for a computer disk drive that needs 6.0 V (rms) instead of the 120 V (rms) from th
    5·1 answer
  • Two protons are aimed directly toward each other by a cyclotron accelerator with speeds of 1200 km/s , measured relative to the
    10·1 answer
  • What is the definition of Newton and could you leave an example of it too?
    12·1 answer
  • A two slit pattern is viewed on a screen 1.00m from the slits if the two third-order minima are 22.0 cm apart what is the width
    5·1 answer
  • Please help asap!99 points
    14·2 answers
  • According to Newton’s first law of motion what will an object in motion do when no external force acts on it ?
    14·1 answer
  • Explain why a roller coaster’s second hill cannot be taller than the first hill.
    8·2 answers
  • A 30,000-kg freight car is coasting at 0.850 m/s with negligible friction under a hopper that dumps 110,000 kg of scrap metal in
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!