Question

1). Why does a muscle force have a greater external versus external force? 2). What's the...

1). Why does a muscle force have a greater external versus external force?

2). What's the difference between moment arm and lever arm?

3). What factors affect static equilibrium?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

1) check this question again... external vs external force ??? I didn't get that..

2)  Moment arm is the perpendicular distance from the axis to the line of action of force and the lever arm is the length of the line that connects the axis to the point of action of force.

3) static equilibrium is basically balance of all the forces. If there is at least one unbalance force then static equilibrium will no longer persists.

Factors can be location of center of gravity, base area of the object. Any unwanted torque on an object.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Why does a muscle have an optimum length which it generates the largest force? What happens...
Why does a muscle have an optimum length which it generates the largest force? What happens at the sarcomere when the length is less or greater than the optimal length?
Question 2 part 1 -Time rate of change in an angular displacement is called? Hint: part...
Question 2 part 1 -Time rate of change in an angular displacement is called? Hint: part 2 -What are the two types of acceleration in a Rigid-Body Rotation? part 3 -What depends on a body’s mass and how the mass is distributed? part 4 -When the moment of inertia is very large, what does this mean about the rotational kinetic energy of a rigid body? part 5 -Lever Arm or moment arm, Line of Action are taken into consideration when...
3.  What is a sarcomere? What are striations, and why does skeletal muscle have a striated appearance?...
3.  What is a sarcomere? What are striations, and why does skeletal muscle have a striated appearance? (1 pt) 4. Are cardiac muscle cells unbranched (like skeletal muscle cells) or branched? Are they multi-nucleated (like skeletal muscle) or with single nuclei? (1 pt) 5. Are smooth muscle cells long and fibrous (like skeletal muscle cells) or much shorter and compact? Are they multi-nucleated or with single nuclei? (1 pt)
1. Please provide a mechanistic basis for the decrease in the amount of force generated by...
1. Please provide a mechanistic basis for the decrease in the amount of force generated by the contracting muscle with time. 2. What are possible causes of gender differences in muscle strength and the potential difference in the time to peak force and onset of fatigue 3. Postulate on the possible causes and potential advantages of the differences in the force generation by different muscle finger types 4. What is the overall force differential between the dominant and the non-dominant...
1. How does depolarization affect Ca2+ concentration released within a muscle cell and how does this...
1. How does depolarization affect Ca2+ concentration released within a muscle cell and how does this affect contraction strength? 2. Why can a runner who is sprinting a 55-meter sprint hold her breath during the whole race?​ 3. What is the cause of soreness after a heavy strength training session at the gym?​
(1) Does a substance that evaporates more quickly (thus giving a greater ΔT) have a higher...
(1) Does a substance that evaporates more quickly (thus giving a greater ΔT) have a higher or lower force of attraction to other molecules in the liquid compared to a substance that evaporates more slowly (smaller ΔT)? Explain. 2) Does there seem to be a pattern to the strength of IMFs? If so, what is the pattern? 3) If the static electric charge is composed of negative electrons, which chemicals should be deflected more, polar or nonpolar ones? Explain. 4))...
Draw and explain the relationship between the internal and external moment arm with the gluteus medius...
Draw and explain the relationship between the internal and external moment arm with the gluteus medius across the hip. Why does someone with a painful hip side bend to the painful side in stance? How does a cane work to offset the side bend? Where would you use it? If you did not have a cane, what else could you do?
20200--PHYS- lab --Skeletal Muscle 1) What is the function of the sarcoplasmic reticulum? ______________________________________ ___________________________________________________________________________________ 2)...
20200--PHYS- lab --Skeletal Muscle 1) What is the function of the sarcoplasmic reticulum? ______________________________________ ___________________________________________________________________________________ 2) Describe the function of troponin and tropomyosin _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ 3) Why will overstretching a skeletal muscle result in less contractile force?________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 4) Which phase of skeletal muscle contraction is the most brief?________________________________ 5) Which type of skeletal muscle fiber is the most prevalent in everyone? ________________________ 6) Increasing voltage to a muscle will increase contraction force up to a limit-why? __________________...
1. Why does a price ceiling set above the equilibrium price have no effect on the...
1. Why does a price ceiling set above the equilibrium price have no effect on the market? 2. Why is an increase in the minimum wage apt to affect teenagers more than other age groups? 3. Suppose that you are a manager working for Yum in the Taco Bell division. Taco Bell employs many employees at the minimum wage. If the minimum wage is already set above the equilibrium wage rate and then the government raises it still higher, what...
1. A 6 N force and a 15 N force act on an object. The moment...
1. A 6 N force and a 15 N force act on an object. The moment arm of the 6 N force is 0.4 m. If the 15 N force provides 5 times the torque of the 6 N force, what is its moment arm? 2. What is the volume of a cube of gold having a mass of 80 kg? Which material will occupy a larger volume, 80 kg of gold, or 80 kg of Uranium? (Justify your choice)...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT