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
Galina-37 [17]
3 years ago
11

In the graph, which two regions show the particle undergoing zero acceleration and negative acceleration respectively?

Physics
1 answer:
Eduardwww [97]3 years ago
3 0

Answer:

BC shows zero acceleration , and CD shows negative acceleration ⇒ C

Explanation:

Acceleration is the rate of change of velocity

So in the time velocity graph the slope of a line represents the

acceleration because the slope of the line is the change in y (velocity)

for the change of x (time)

If the line has positive slope, then the acceleration is positive

If the line has negative slope, then the acceleration is negative

If the line has zero slope, then the acceleration is zero

A line has positive slope if y increased when x increased

A line has negative slope if y decreased when x increased

A line has zero slope if it is a horizontal line, that means y constant and

x increased

Lets look to the graph

x-axis represents the time in seconds

y-axis represents the velocity in meters per second

→ Line AB:

y increased from 0.5 m/s to 1 m/s

x increased from 0 to 3 seconds

The slope of line AB is positive

<em>Line AB shows positive acceleration</em>

→ Line BC:

Y in the same value 1 m/s

x increased from 3 seconds to 4 seconds

The slope of line BC is zero

<em>Line BC shows zero acceleration</em>

→ Line CD:

y decreased from 1 m/s to 0 m/s

x increased from 4 to 6 seconds

The slope of line AB is negative

<em>Line CD shows negative acceleration</em>

<em></em>

<em>BC shows zero acceleration , and CD shows negative acceleration</em>

You might be interested in
What property do the following elements have in common? Li, C, and F A) They are poor conductors of electricity. B) Each element
Aloiza [94]

Answer: Option (D) is the correct answer.

Explanation:

The given elements Li, C and F are all second period elements. So, when we move from left to right across a period then there occurs increase in number of valence electrons as there occurs increase in total number of electrons.

So, it means more electrons are added to the same energy level.

Thus, we can conclude that a property of valence electrons for each element is located in the same energy level is common in the given elements.

7 0
3 years ago
Read 2 more answers
You can keep a 1kg apple from falling to the ground by placing it on a table. What reaction force is resisting the force of the
Gnom [1K]

The equilibrium condition allows finding the correct answer for the force that is resisting the weight of the apple is:

        3. Normal force

Newton's second law gives the relationship between <em>force, mass</em> and acceleration of bodies, in the special case that the acceleration is is called the equilibrium condition.

            ∑ F = 0

Where F is the external force.

The free body diagram is a diagram of the forces on bodies without the details of the shape of the body, in the attached we can see a scheme of the forces.

Let's write the equilibrium condition for the apple

          N - W = 0

          N = W

.

We can see that the only forces acting on the apple are its weights and reaction from the table called Normal.

Let's analyze the different answers:

1. False. The apple is not moving therefore the resistance is zero

2. False. The apple is not moving  so friction it with the table is  

3. True. The free-body diagram shows that the normal and the weight are equal

4. False. There is nothing to pull the apple so there is no tension

5. False. Gravity is the weight of the apple that is applied to the table, not from the table to the apple.

In conclusion using the equilibrium condition we can find the correct result for the force that is resisting the weight of the apple is:

        3. Normal force

Learn more here: brainly.com/question/2872207

8 0
3 years ago
A 49 N coconut is in a 15 m tree. What is te potential energy of the coconut?
eduard

Answer:

735 J

Explanation:

From the question given above, the following data were obtained:

Weight (W) = 49 N

Height (h) = 15 m

Potential energy =?

Potential energy is simply defined as the product of weight of the object and height to which the object is raised. Mathematically, it is expressed as:

Potential energy = weight × height

With the above formula, we can obtain the potential energy of the coconut as follow:

Weight (W) = 49 N

Height (h) = 15 m

Potential energy =?

Potential energy = weight × height

Potential energy = 49 × 15

Potential energy = 735 J

Thus, the potential energy of the coconut is 735 J

4 0
2 years ago
A 100 Newton force applied to a machine lifts a 400 N object. What is the actual mechanical advantage of
uranmaximum [27]

Answer:

m = 4

Explanation:

It is given that,

A 100 Newton force applied to a machine lifts a 400 N object.  

We need to find the mechanical advantage of  this machine.

The mechanical advantage of a machine is given by the ratio of output force to the input force.

Here, output force is 400 N and input force is 100 N

So, mechanical advantage becomes :

m=\dfrac{400}{100}\\\\m=4

So, the mechanical advantage of this machine is 4.

7 0
3 years ago
If the child has a mass of 13.9 kg, calculate the magnitude of the force in newtons the mother exerts on the child under the fol
bagirrra123 [75]

Answer:

hi how are you doing today Jasmine

4 0
2 years ago
Other questions:
  • A baseball is thrown vertically up to a height of 30 m on Earth. If the same ball is thrown up on the moon with the same initial
    6·1 answer
  • Please help with this!!!!!
    7·1 answer
  • As a car heads down a highway traveling at a speed v away from a ground observer, which of the following statements are true abo
    7·1 answer
  • the ocean floor is, on average, 4267 m below sea level. What is the pressure in the atmosphere at this depth?
    6·1 answer
  • Why does cold water have less thermal energy than hot water?
    9·1 answer
  • For heat transfer purposes, an egg can be considered to be a 5.5-cm-diameter sphere having the properties of water. An egg that
    5·1 answer
  • Can you walk on the moon
    15·2 answers
  • Can the volume of a gas be measured?
    8·1 answer
  • A certain superconducting magnet in the form of a solenoid of length 0.56 m can generate a magnetic field of 6.5 T in its core w
    10·1 answer
  • Which accurately completes the statement? Conduction involves the transfer of electric charge or due to the movement of particle
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!