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
zloy xaker [14]
3 years ago
9

Suppose you exert a 400-N force on a wall but the wall does not move. The work you are doing on the wall is : unknown, because t

he mass of the wall is not given
zero, because the wall is not moving
3920 J
400 J
Physics
1 answer:
Ilya [14]3 years ago
6 0

Answer:

W = 0 :The work done on the wall is zero,because the wall is not moving

Explanation:

Work theory

Work is the product of a force applied to a body and the displacement of the body in the direction of this force.

W= F*d Formula (1)

W: Work (Joules) (J)

F: force applied (N)

d=displacement of the body (m)

The work is positive (W+) if the force goes in the same direction of movement.

The work is negative (W-)if the force goes in the opposite direction to the movement

Data

F= 400-N

d= 0

Problem development

We apply formula (1) to calculate the work done on the wall:

W= 400*0

W=0

You might be interested in
During physical activity of high intensity, your heart will beat at a percentage of its maximum rate. Whi
Maurinko [17]

Answer:

D

Explanation:

If it is of very high intensity it will be 85-100%

8 0
3 years ago
The process of achieving fitness in the human body is almost instant and can occur overnight. True or False
777dan777 [17]
This statement is false nothing in the human body can occur overnight
3 0
3 years ago
What happened to the maximum height of consecutive swings
GarryVolchara [31]

Answer:

we need more info

Explanation:

3 0
3 years ago
In Ch. 1.6, the authors point out that interstellar space is not actually as empty as it seems. There is actually a lot of diffu
wel

Answer:

very small solid particles called interstellar dust.

Explanation:

In the space between the stars there is gas and dust, which represent at least 20% of the mass of our galaxy. In the Milky Way it is considered that there is a gas density of approximately 0.2 to 0.5 atoms / cm3 in the surroundings of the Sun; with respect to the dust an average of 1 g / cm3 is estimated.

Gas is about atoms and molecules, mainly hydrogen; In order of abundance, helium, carbon, oxygen, nitrogen and iron follow. On the other hand, the dust is tiny particles, generally smaller than 10 microns; the dust does not shine and therefore it is only distinguished when it is projected on bright regions (nebulae or clusters).

Interstellar matter is mainly concentrated towards the plane of the galaxy, in the strip corresponding to the Milky Way; there you can see bright nebulas of diffuse character called nebulas. These nebulae are classified according to three types: (a) bright or emission nebulae, (b) reflection nebulae and (c) planetary nebulae.

Hydrogen appears both ionized and neutral; The bright nebulae are composed of ionized hydrogen and other ionized elements. Non-ionized (neutral) hydrogen is found in the spiral arms of the Milky Way and can be detected through radio waves.

6 0
3 years ago
What is the length of a simple pendulum with a period of 11.5 s?
givi [52]
Using the equation for period length for a pendulum, you get 32.829 meters.
4 0
3 years ago
Other questions:
  • Calculate the wavelength of the electromagnetic radiation required to excite an electron from the ground state to the level with
    5·2 answers
  • A 2.0 kilogram cart moving due east at 6.0 meters per second collides with a 3.0 kilogram cart moving due west. the carts stick
    6·1 answer
  • a bird has a mass of 0.2kg and is flying 10m above the ground with a speed of 7 m/s.What is the total mechanical energy of the b
    13·1 answer
  • A technical machinist is asked to build a cubical steel tank that will hold 60L of water.Calculate in meters the smallest possib
    12·1 answer
  • In Dante Controller’s Clock Status tab, you see reports of more than one clock master. The Dante Controller Log also shows devic
    9·1 answer
  • Providing that it does not collide with another object, what is the most likely reason that an object moving through space would
    15·1 answer
  • What is 541.2 mg in grams
    11·2 answers
  • What type of magnetism is present in a bar magnet?
    11·2 answers
  • Which of the following is not a way that astronomers can find how much dark matter there is in cluster of galaxies?
    14·1 answer
  • Which of the following is the keyboard shortcut for saving a document?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!