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
N76 [4]
3 years ago
13

A spring scale hung from the ceiling stretches by 6.1 cm when a 2.0 kg mass is hung from it. The 2.0 kg mass is removed and repl

aced with a 2.5 kg mass.
Part A What is the stretch of the spring?
Physics
1 answer:
lapo4ka [179]3 years ago
8 0
To solve this problem, we need to use Hooke's Law. 

Hooke's Law: 

F = -kx

where F = mg
m = mass of the object
g = gravitational force
k = spring constant
x = length of stretch of the spring

Solve for the spring constant, k:

2.0 kg * 9.81 m/s^2 = -k*(6.1cm/100cm/m)

k = 321.64 

The stretch of the spring with mass of 2.5 kg is then determined: 

2.5 kg * 9.81 m/s^2 = -321.64 *(x)
x = 7.62 cm
You might be interested in
1. How many grams are in a dekagram?
zepelin [54]

Answer: 10

Explanation:

none just search it up

4 0
3 years ago
Read 2 more answers
explain the main reasons why pressure and temperature play a critical role in the stability of gas hydrates. Name two situations
Sloan [31]
Using the phase diagram of methane, the pressure and temperature play a critical role in its stability since a slight change in the pressure or temperature will cause a phase change. At low temperature and high pressure, methane hydrate becomes solid (methane hydrate + ice). When the temperature is increased, it becomes liquid. This is one of the main challenges in harvesting methane hydrate, its instability.  
4 0
3 years ago
"An empty cylindrical barrel is open at one end and rolls without slipping straight down a hill. The barrel has a mass of 19.0 k
Sophie [7]

Answer:

the acceleration due to gravity, g of the cylinder is 9.81m/s2

Explanation:

since the cylinder is rolling down from a hill, the acceleration due to gravity of any object coming down from the atmosphere is always constant which is g=9.8m/s2 or approximately 10m/s2

5 0
3 years ago
The "lead" in pencils is a graphite composition with a Young’s modulus of about 1×1010N/m21×1010⁢N/m2. Calculate the change in l
Tanya [424]

Answer:

b) 0.1 mm

Explanation:

Given that

E= 1 x 10¹⁰ N/m²

F= 4 N

d= 0.5 mm

L = 60 mm

We know that elongation due to force F given as

\Delta L=\dfrac{FL}{AE}

\Delta L=\dfrac{FL}{\dfrac{\pi d^2}{4}\times E}

\Delta L=\dfrac{4\times 60}{\dfrac{\pi \times 0.5^2}{4}\times 10^4}

ΔL = 0.12 mm

Therefore the answer is -

b) 0.1 mm

6 0
3 years ago
Which instrument is used to measure depth of ocean ?
skelet666 [1.2K]
Echo sounding is a type of SONAR used to determine the depth of water by transmitting sound pulses into water. The time interval between emission and return of a pulse is recorded, which is used to determine the depth of water along with the speed of sound in water at the time.
5 0
3 years ago
Other questions:
  • A rocket with a mass of 1,000 kilograms accelerates at 3 meters per second per second. Use the equation F = m × a to find the fo
    14·1 answer
  • A force of 6.0 N pulls a box 0.40 m along a frictionless plane that is inclined at 36°. What work is being done by the pulling f
    5·1 answer
  • An electron and a proton, moving side by side at the same speed, enter a 0.020-T magnetic field. The electron moves in a circula
    15·1 answer
  • All of the waves in the electromagnetic spectrum are _______ waves.
    7·1 answer
  • An electron has a velocity of 3.2 x 10^6 m/s. What is its’ momentum? (b) What is its’ wavelength? (c) What other objects/materia
    14·1 answer
  • Why use units with your number? Why is putting a unit with your number important?
    11·2 answers
  • An astronaut has a weight of 2000 kg elephant
    7·1 answer
  • Hey guys, I don't understand this. I am unable to find the answer, any help?
    8·2 answers
  • One way to provide artificial gravity (i.e., a feeling of weight) on long space voyages is to separate a spacecraft into two par
    9·1 answer
  • Why doesn't the moon turn black during a total lunar eclipse? Explain your answer​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!