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
atroni [7]
2 years ago
11

a student pushes a 40-N block across the floor for a distance 0f 10 m how much work was done to move the block?

Physics
2 answers:
slava [35]2 years ago
6 0
W=f*d
= 40N * 10m
work= 400 joules
bearhunter [10]2 years ago
3 0
We don't know how much force s/he had to use to push the block.
If the floor was smooth and wet, it needed very little force.
If there was sandpaper or stones on the floor, it took a lot of force.

Whatever amount of force s/he needed to use, the work done was

          Work  =  (amount of force, in Newtons) x (10 m)

          The unit is Joules.
You might be interested in
The legend that Benjamin Franklin flew a kite as a storm approached is only a legend; he was neither stupid nor suicidal. Suppos
UNO [17]

Answer:

The current on the water layer = 1.64×10^-3A

Explanation:

Let's assume that the radius given for the string originates from the centre of the string. The equation for determining the current in the water layer is given by:

I = V × pi[(Rwater + Rstring)^2 - (Rstring)^2/ ( Resitivity × L)

I =[ 166×10^6 ×3.142[(0.519×10^-4) + (2.15×10^-3])^2 - ( 2.15×10^-3)^2] / ( 183 × 831)

I =[ 521572000(4.848×10^6)- 4.623×10^-6]/ 154566

I = 252.83 -(4.623×10^-6)/ 154566

I = 252.83/154566

I = 1.64× 10^-3A

3 0
3 years ago
Which of the following statements about the problem of object recognition is false?
alexandr1967 [171]

Answer:

The answer is: letter c, in object recognition, the goal is recognizing the proximal stimulus.

Explanation:

Letter c is a "false" statement about object recognition because the goal is recognizing the distal stimulus and "not the proximal stimulus."

Distal stimulus refers to <em>an event or an object in the world that provides information to the proximal stimulus. </em>The proximal stimulus is a pattern of these events and objects that reaches to your senses. They can be registered in the person via<em> "sensory receptors." </em>

We need to recognize the distal stimulus and not the proximal stimulus. For example, when a lemon (distal stimulus) is being cut, it brings out a fragrance (proximal stimulus) that goes to the person's sense of smell. This gives the person a hint on where the smell is coming from and what it is. Then, the person recognizes that it is a lemon.

6 0
3 years ago
What is a definition for reactivity with vinegar?
STALIN [3.7K]
The answer to this is Chemical property. 
6 0
3 years ago
1 point
iren [92.7K]

Answer:

i need a girlfreind

Explanation:

4 0
3 years ago
Can an object's average velocity equal zero when object's speed is greater than zero.
notsponge [240]
No, because the magnitude of the velocity is always greater than speed.
6 0
2 years ago
Other questions:
  • The number of protons and neutrons in an atom is that atom’s _____________ number.
    7·2 answers
  • The conductors that carry the current to electrical devices and ? equipment are the heart of all electrical systems. There are a
    5·1 answer
  • If a scale of the solar system was built where 1 mm equaled 1 mile, could the model be practically built in a city?
    10·2 answers
  • Which isotope is use to date ancient artifacts such as fossils?
    14·1 answer
  • How are stars formed
    11·1 answer
  • During each cycle of operation a refrigerator absorbs 56 cal from the freezer compartment and expels 81 cal tothe room. If one c
    6·1 answer
  • Why do sound waves move faster through the ground than through the air?
    14·1 answer
  • -Starts to suck on ur neck giving you hickeys n runs my hand down your body biting my lip against your neck
    12·1 answer
  • HELP PLEASE
    5·1 answer
  • A plane leaves with an acceleration of 6.34 m/s squared and takes 1.5 hours to stop. What is the speed of the plane? What was th
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!