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
iVinArrow [24]
3 years ago
12

What is the difference in forces and displacement when comparing positive and negative work?

Physics
1 answer:
8_murik_8 [283]3 years ago
7 0

Answer:

Explanation:

Work is the product of force and displacement.  Work is positive if force and displacement moves in the same direction. Work is negative if force and displacement moves in opposite direction.  Take for example, a load is to move from point A to point B in the forward direction. if you apply force on the load from point A to B work done on the load is positive. If it happens that the force you apply is to the opposite direction, the work done will be negative.

You might be interested in
Which of the following is NOT usually published with a scientific report?
dusya [7]

C cost (I need points)

5 0
3 years ago
A ball has a diameter of 3.79 cm and average density of 0.0838 g/cm3.
suter [353]

Answer: 0.258 N

Explanation:

As the density of the object is much less than the density of water, it’s clear that the buoyant force, is greater than the weight of the object, which means that in normal conditions, it would float in water.

So, in order to get the ball submerged in water, we need to add a downward force, that add to the weight, in order to compensate the buoyant force, as follows:

F = Fb – Fg

Fb= δH20* 4/3*π*(d/2)³  * g

Fg = δb* 4/3*π*(d/2)³ *g

F= (δH20- δb) * 4/3*π*(d/2)³*g

Replacing by the values of the densities, and the ball diameter, we finally get:

F= 0.258 N

3 0
3 years ago
For these pictures is more or less friction needed?
antiseptic1488 [7]

Answer:

8: More

9: More

10: More

11: Less

12: Less

12: More

4 0
2 years ago
The 5.5 million vinyl long-playing (LP) records sold in the United States per year pales in comparison with the 1.26 billion dig
miv72 [106K]

Answer:

decline

Explanation:

Based on the scenario being described within the question it can be said that these types of firms are in the decline stage of the product life cycle. This stage refers to when a product has already passed it's peak potential and sales begin to decline until production is ultimately halted and the product dies off. Which is exactly what is happening to the LP's since everyone has moved on to digital downloads.

4 0
3 years ago
If you see a sedimentary rock outcrop and red layers of sand are on top of pale yellow layers of sand, what do you know for sure
neonofarm [45]

Answer: The yellow layer is definitely older than the red layer

Explanation: According to Nicolaus Steno's law of superposition and original horizontality. Older rocks underlie younger rocks.

Sedimentary rocks are usually deposited in horizontal layers in which each stratigraphic layer is laid down before another can be deposited upon it.

The red layer, in addition to being older, is also likely to have undergone intense oxidation due to earlier exposure.

5 0
3 years ago
Other questions:
  • How are chargeable cells different from ordinary dry cells​
    13·1 answer
  • In orbit, gravity:
    9·1 answer
  • Feces is usually about 40 percent water and 60 percent solid matter. Reducing the water content to 20 percent would most likely
    10·1 answer
  • Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial spe
    8·1 answer
  • Why is it useful to know the net force?
    12·2 answers
  • In what medium does sound travel fastest​
    11·1 answer
  • A 4.0 kg ball is traveling at 3.0 m/s and strikes a wall. The ball bounces off the wall with a velocity of 4.0 m/s in the opposi
    5·1 answer
  • On a certain map, every 3 cm represents 6 km on earth surface. Which ratio represents the scale of the map, which shows how the
    12·1 answer
  • Substances will expand when they change from gas to a liquid. True False
    10·1 answer
  • Can someone please answer this, ill give you brainliest and your getting 100 points.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!