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
77julia77 [94]
3 years ago
7

What is the best explanation of work?

Physics
2 answers:
9966 [12]3 years ago
7 0

Answer:

In  physics, work is defined as a  force  causing the movement—or displacement—of an object. In the case of a constant force, work is the scalar product of the force acting on an object and the displacement caused by that force.

Contact [7]3 years ago
7 0

Answer: option D

Explanation:  In physics, you say that a force is "doing work" when the force is acting on an object and causes a movement in the said object. This means that if you start pushing a wall, and the wall does not move, there is no work generated, indifferent of the amount of force applied.

Under this viewpoint, the right option is D.

"Work occurs when a force acts on an object and causes a displacement of that object."

You might be interested in
Which is the best example of increasing entropy?
andreev551 [17]

Answer:A campfire

Explanation:

3 0
3 years ago
Read 2 more answers
When two plates of differing densities collide, how might the density of each plate affect which plate is pulled beneath the oth
OlgaM077 [116]
Pull the plates apart and you will knwo what it is lmaoo
5 0
3 years ago
A wheel of radius R, mass M, and moment of inertia I is mounted on a frictionless, horizontal axles. A light cord wrapped around
Alex_Xolod [135]

Answer:

\alpha =\frac{m*g*R}{I-m*R^2}

a = \frac{m*g*R^2}{I-m*R^2}

T=\frac{I*m*g}{I-m*R^2}

Explanation:

By analyzing the torque on the wheel we get:

T*R=I*\alpha    Solving for T:   T=I/R*\alpha

On the object:

T-m*g = -m*a    Replacing our previous value for T:

I/R*\alpha-m*g = -m*a

The relation between angular and linear acceleration is:

a=\alpha*R

So,

I/R*\alpha-m*g = -m*\alpha*R

Solving for α:

\alpha =\frac{R*m*g}{I+m*R^2}

The linear acceleration will be:

a =\frac{R^2*m*g}{I+m*R^2}

And finally, the tension will be:

T =\frac{I*m*g}{I+m*R^2}

These are the values of all the variables: α, a, T

8 0
3 years ago
At what point does the external energy enter the system?
Phoenix [80]
The correct answer as the first one above !
8 0
3 years ago
I need the science answer step by step
sukhopar [10]
What is the question
7 0
3 years ago
Other questions:
  • what was the mass of a cannkn ball whose velocity is 200m/s if it were shot from 1000kg that recoils a 2m/s. Solve step by step​
    5·1 answer
  • Sally goes on a hike. The distance she walks compared to the amount of time she walks is shown on the graph. Which statement is
    10·1 answer
  • Give 2 examples of mountain ranges in the world that have been caused by folding
    7·1 answer
  • A charge of 1.5 µC is placed on the plates of a parallel plate capacitor. The change in voltage across the plates is 36 V. How m
    15·2 answers
  • What does overloading your muscles accomplish?
    12·2 answers
  • Match the half life and time information to the percentage of radioactive isotope left.
    12·1 answer
  • Calculation using Ohm's Law: If a circuit has a voltage of 500 V and a resistance of 250 ohms, what is the current?
    14·2 answers
  • (20 points) You are at the center of a boat and have been rowing the boat for a long time. You weigh only 80 kg and your 120 kg
    6·1 answer
  • HELP!!!<br><br> i’ve been stuck at this question for a whole day
    10·2 answers
  • What is measurements?​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!