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
timurjin [86]
3 years ago
10

A box that has a weight of 40 N is hung from a spring. The spring constant of the spring is 400 N/m. How many centimeters will t

he spring stretch? 0.1 cm 1 cm 10 cm 100 cm
Physics
2 answers:
suter [353]3 years ago
7 0

the correct answer is c. 10 cm

Andrej [43]3 years ago
5 0
The mathematical relationship between force and extension for a spring is F = -kx , where F is the restoring force, k is the spring constant and x is the extension. If a box that weighs 40 N is hung from a spring of content 400 N/m, then the extension is equal to x = -F / k = -400 / 40 = -10 cm. The negative sign simply shows the extension and restoring force are in opposite directions. The answer is 10 cm. 
You might be interested in
The defense is the team that is trying to score a goal.<br> A. True<br> B. False
larisa86 [58]

Answer:

true

Explanation:

5 0
3 years ago
Read 2 more answers
A 70 kilogram hockey player skating east on an ice rink is hit by a 0.1 kilogram hockey puck moving toward the west. The puck ex
guajiro [1.7K]

Given:

70 Kilogram hockey

Hit by 0.1 kilogram

50 Newton

Description:

So in this case this bacially means that one object is experiencing a force then another object.  So the answer to the question will be 50N.

Answer: 50N (3rd Law)

Hope this helps.

4 0
3 years ago
A coin released at rest from the top of a tower hits the ground after falling 1.5 s. What is the speed of the coin as it hits th
Inessa05 [86]

initially coin is at rest and then it drop for total time t = 1.5 s

so here the speed of the coin at which it will hit the floor is to be find

v_f = v_i + at

here we know that

v_i = 0

a = 9.8 m/s^2

t = 1.5 s

now from above equation

v_f = 0 + 1.5 (9.8)

v_f = 14.7 m/s

so it will hit the floor with speed 14.7 m/s

3 0
3 years ago
In Paul Hewitt's book, he poses this question: "If the forces that act on a bullet and the recoiling gun from which it is fired
Sauron [17]
They have different accelerations because of their masses. According to Newton's Second Law, an objects acceleration is inversely proportional to its mass. Therefore the object with the larger mass, in this case the gun, will have a smaller acceleration. In the same way, the less massive object, being the bullet, will have a higher acceleration.

Hope this helps :)
4 0
3 years ago
Which of the following equations is balanced correctly? A. 3 H2O → H2 + 3 O2 B. Cl2 + 2 KBr → KCl + Br2 C. 2 C2H2 + 5 O2 → 4 CO2
posledela
A. the carbons are unbalanced B. the hydrogens are unbalanced. D. the chlorines are unbalanced. That leaves C. to be correctly balanced.
8 0
2 years ago
Read 2 more answers
Other questions:
  • A nonuniform beam 4.50 m long and weighing 1.40 kN makes an angle of 25.0° below the horizontal. It is held in position by a fri
    6·1 answer
  • Examples were friction is not useful
    11·1 answer
  • Mrs. Smith walks from her house 11.2 m to the grocer. Then she walks from the grocer 5.7 m to the pet store. Then she walks 32.7
    14·1 answer
  • Marissa uses a cart to haul flowers at her job with a landscaper. She pushes a 12-kilogram cart a distance of 6 meters with a fo
    13·2 answers
  • What happens to speed when wavelength decreases
    9·1 answer
  • Develop expression for equation for uniform motion in a straight line
    12·1 answer
  • What is one advantage of doing a feild experiment instead of a lobortory expirament
    6·1 answer
  • The intensity of sunlight reaching the earth is 1360 w/m2. Assuming all the sunligh is absorbed, what is the radiation pressure
    14·1 answer
  • What is a molecule?
    15·2 answers
  • Difference between the fertility rate and mortality rate of developed and least development countries
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!