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
oksano4ka [1.4K]
3 years ago
8

A spring with a force constant of 120 N/m is used to push a 0.27-kg block of wood against a wall

Physics
1 answer:
kvv77 [185]3 years ago
4 0

Answer

given,

Spring force constant = 120 N/m

mass of the wooden block = 0.27 Kg

coefficient of friction = 0.46

a) we know,  

   μ N = mg

   0.46 x N = 0.27 x 9.8

   N = 5.75 Newton

This should be the normal force on the block by the wall. Thus minimum spring force should be 5.75 newton.

             F = k x d

k = spring constant,

d = compression in spring)

5.75 = 120 x d

  d = 0.048 m

  d = 4.8 cm

b)  answer will  change if the mass of block is doubled.

mass becomes = 0.54 kg

the normal force  needed = 11.4 newton.

the compression becomes  = 9.6 cm.

You might be interested in
which of the glass lenses above, when placed in air, will cause rays of light (parallel to the central axis) to converge?
777dan777 [17]

Convex lenses when placed in the air, will cause rays of light (parallel to the central axis) to converge.

Converging lenses, commonly referred to as convex lenses, have thicker centers and narrower upper and lower margins. The edges are outwardly curled. This lens has the ability to concentrate a beam of parallel light rays coming from the outside onto a spot on the opposite side of the lens.

The image created is referred to be a genuine image when it is inverted relative to the object. On a screen, this kind of image can be recorded. When the object is positioned at a point farther than one focal length from the lens, a converging lens creates a true image.

A virtual image is one that cannot be produced on a screen and is formed when the image is upright in relation to the object. When an item is positioned within one focal length of a converging lens, a virtual image is created. It creates an enlarged image of the object on the same side of the lens as the image. It serves as a magnifier.

Learn more about the convex lens here:

brainly.com/question/12847657

#SPJ4

3 0
1 year ago
What is the gravitational potential energy of a 15.0kg object that is 5.00m above the ground relative to a point 8.00m above the
Licemer1 [7]

Explanation:

an object's gravitational potential energy Eg is m×g×h where:

m=mass

g=9.8m/s²

h=height relative to the closest object below it (because it cannot potentially fall through it

so Eg = 15×9.8×5=735J

4 0
2 years ago
How can you drop two eggs the fewest amount of times, without them breaking?
MrMuchimi

Answer:

Both eggs are identical. The aim is to find out the highest floor from which an egg will not break when dropped out of a window from that floor. If an egg is dropped and does not break, it is undamaged and can be dropped again. However, once an egg is broken, that's it for that egg.

4 0
3 years ago
In a classroom, 4 out of every 6 students are female. If there are 27 students, how many of them are female?
icang [17]

Answer:

16 male students, 11 female students

7 0
2 years ago
Who will most likely have the lowest credit score. PLEASE HELP MEEE
dimulka [17.4K]

Answer:

A. usually 3 cards a year means you have little or no credit I believe

4 0
2 years ago
Other questions:
  • Changing the current changes the "what" of an electromagnet
    6·2 answers
  • A sailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5​​​​m​​/s2 for 4s. After t
    12·1 answer
  • 2. Does the amount of iron in the water affect plant growth?
    7·1 answer
  • As of December 31, 2013, Stand Still Industries had $2,500 of raw materialsinventory. At the beginning of 2013, there was $2,000
    12·1 answer
  • If a rigid body rotates about a fixed axis passing through its center of mass, the body's linear momentum is
    8·1 answer
  • A uniform cylinder of radius 40 cm and mass 28 kg is mounted so as to rotate freely about a horizontal axis that is parallel to
    13·1 answer
  • ASAP FIRST TO ANSWER CORRECTLY WILL BE BRAINLIEST
    6·1 answer
  • What kind of units as force measured by
    15·2 answers
  • A _____ magnetic field can create an electric current.
    10·1 answer
  • Please help!! :)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!