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ASHA 777 [7]
2 years ago
12

When a skeletal muscle fiber contracts during an isotonic concentric contraction, the distance between the Z bands of a sarcomer

e increases.True / False.
Biology
2 answers:
Orlov [11]2 years ago
8 0

Answer: False

Explanation: as the muscles shortens due to contraction, the actin filaments from opposite ends of the sarcomere approach each other. So the two Z bands come closer with reduction in length of the sarcomere

jonny [76]2 years ago
3 0

Answer:

False

Explanation:

The Z-line is a structure formed between adjacent sarcomeres and is found at each end of the sarcomere in striated muscle and defines the lateral boundaries of the sarcomere, its function is to give anchorage to titin and to the outer ends of the thin filaments.  Due to this anchoring function, the Z-lines are responsible for force of transmission and during contraction, as the sarcomere shortens, the distance between Z lines lessens

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terry physics pushes a 75kg lab cart so that is accelerates from rest with a velocity of 4.4m/s in 3.1 secounds. what is the for
svetlana [45]

106.5N

Explanation:

Given parameters:

Mass of cart = 75kg

Velocity = 4.4m/s

time taken = 3.1s

Unknown:

Force = ?

Solution:

To solve this problem, we are going to apply newton's second law of motion. The law states that "the acceleration of a body is directly proportional to the force on the body and inversely proportional to the mass".

      F = m  x   a

F = force on body

m = mass of body

a = acceleration of the body

 But we know that acceleration is the change in velocity with time of a body;

     a  = \frac{change in velocity }{time}

  F = m x \frac{V}{t}

V is the velocity

t is the time taken

   F = \frac{75  x  4.4}{3.1}   = 106.5N

learn more:

Newton's law brainly.com/question/11411375

#learnwithBrainly

6 0
2 years ago
Mattie found a tool that her dad left in the yard. A picture of the tool is shown below.
oksano4ka [1.4K]

Answer:

b

Explanation:

The answer is B becuase "where do people buy tools is not a scientific question, and neither is C.

5 0
3 years ago
Read 2 more answers
Question 1 of 10
padilas [110]

According to the research, the correct option is B. A <u>theory</u> is the element of the scientific process that would include the greatest amount of information about living things.

<h3>What is a theory?</h3>

It is a set of ideas or proven hypotheses that explain some phenomenon studied or a scientific description based on a set of observations or experiments.

In this sense, it is a logical system that is established from observations, axioms and postulates, and is formed by the set of concepts, propositions and definitions that are related to each other with the aim of explaining the given phenomenon.

Therefore, we can conclude that according to the research, the correct option is B. A <u>theory</u> is the element of the scientific process that would include the greatest amount of information about living things.

Learn more about a theory here: brainly.com/question/845963

#SPJ1

7 0
1 year ago
ANSWER ASAP PLEASE
spayn [35]
False. Continental slopes are fairly shallow and more of a gentle slope. Hope this helps!
7 0
3 years ago
Which of these is not a natural earth cycle?<br> rock<br> water<br> carbon<br> oil
Andrei [34K]

Answer:

The answer is oil .

Explanation:

<u>Oil</u> is not a natural Earth cycle.

(Correct me if I am wrong)

4 0
2 years ago
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