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
Doss [256]
3 years ago
11

A 250 kg engine block is being dragged across the pavement by a sturdy chain with a tension force of 10,000 N, as seen in the fr

ee body diagram. Four students make claims about what the motion of the engine block will be based on the information in the diagram. Which student has the correct claim and reasoning? (3c4)
Question 10 options:

Deshaun says, “Since the friction force is greater than the tension force, the object will accelerate to the left.”


Jane says, “Since the tension force is greater than the friction force, the block will move to the right at a constant velocity.”


Kora says, "Since the tension force is greater than the friction force, the block will accelerate to the right.”


Jorge says, “Since the tension force is equal to the friction force, the object will remain at rest.”
Physics
1 answer:
Musya8 [376]3 years ago
4 0

Answer:   B

Explanation:

The friction force is less than the tension force

You might be interested in
A particle executes simple harmonic motion with an amplitude of 2.18 cm.
Bogdan [553]

Answer:

The positive displacement from the midpoint of its motion at the speed equal one half of its maximum speed is 3.56 cm.

Explanation:

Maximum speed is  :

                          v (max) = Aω

Speed v at any displacement y is given by  

v^{2} = w^{2} (A^{2} - y^{2})   ........................................................  i

And,

               v = \frac{1}{2} v (max)  

          or,  2 × v = Aω     ....................................................   ii

Eliminating  ω from equations i and ii,

                       \frac{1}{4} A^{2}  w^{2}  =  w^{2}  ( A^{2}  - y^{2})

                     or, y^{2} =  (\frac{3}{4}) A^{2}  =(\frac{3}{4}) 2.18^{2}

                    or,  y =  3.56 cm.

3 0
2 years ago
Why the unit of power is called derived unit? <br>​
Lilit [14]
A :-) it was given the name Newton (N). from this, the derived unit of energy (or work) is defined ,as the work produced when the unit of force causes a displacement equal to the unit of length of its point of application along its direction . It was given the name Joule (J).
7 0
2 years ago
Water boiling<br><br> Which one is shown? (Look at pic)
Mkey [24]

Answer:

conduction.

Explanation:

Hoped I helped! Im Eve btw have a great day and consider marking this brainliest if you do thank you in advanced!

4 0
3 years ago
How do you calculate change in position? A. initial position times two B. final position plus initial position C. final position
e-lub [12.9K]
The answer is C. Final position minus initial position.
5 0
3 years ago
An object starts at rest. Its acceleration over 30 seconds is shown in the graph below:
ddd [48]

Answer:

The instantaneous speed of the object after the first five seconds is 12.5 m/s.

(C) is correct option.

Explanation:

Given that,

An object starts at rest. Its acceleration over 30 seconds.

We need to calculate the instantaneous speed of the object after the first five seconds

We know that,

Area under the acceleration -time graph gives speed.

According to figure,

speed = area\ of\ tringle

speed=\dfrac{1}{2}\times b\times h

speed =\dfrac{1}{2}\times5\times5

speed-12.5\ m/s

Hence, The instantaneous speed of the object after the first five seconds is 12.5 m/s.

6 0
3 years ago
Other questions:
  • ENVIROMENTAL SCIENCE -the united states is a leading producer of which of the following fossil fuels????please help
    10·2 answers
  • Please someone help me plz I don’t understand 1 or 2 plz help me plz plz plz
    10·1 answer
  • How did the southeastern United States drought affect the bottling operations of Pepsi and Coca-cola?
    14·1 answer
  • How does mechanical energy relate to the work an object can do
    13·1 answer
  • Use the diagram to answer the question. What happens at night?
    8·2 answers
  • A ball is thrown horizontally from a high cliff with a velocity of 5 m/s. Ignoring the slowing of the ball due to air resistance
    13·2 answers
  • How long does a car (1000 kg) have a speed of 30 m/s from a rest if the engine power is 10kw
    11·1 answer
  • Please help me with a speech.The topic of my speech is Passion.​
    5·1 answer
  • A 1700 kg car is moving with a velocity of 20 m/s and stops.
    11·1 answer
  • What would be the Elastic Potential Energy (EPE) stored in a spring with a constant k = 200 N/m that is pulled to stretch 0.45m?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!