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
miskamm [114]
3 years ago
15

The relative angle at the knee changes from 0 to 85 degrees during the knee flexion phase of a squat exercise. If 10 complete sq

uats are performed, what is the total angular distance undergone at the knee (in degrees)?
Physics
1 answer:
strojnjashka [21]3 years ago
6 0

Answer: the total angular distance undergone at the knee is 1700°

Explanation:

You know that in a knee flexion, the angle goes from 0° to 85.

Now, in one squat, the knee flex and the angle goes from 0° to 85° (85° of angular distance) and when the knee straigthens, the angle goes from 85° to 0° (another 85° of angular distance)

So in one squat, the total angular distance undergone at the knee is d = 85° + 85° = 170°

and if in one squat, the angular distance is 170°, in ten, the angular distance will be ten times that number:

d = 10*170° = 1700°

You might be interested in
Why does a rolling sphere slows down?​
Iteru [2.4K]
There’s frictional force acting on the sphere, which causes it to gradually slow down, and eventually come to a stop.
4 0
3 years ago
In at least 150 words, discuss how Chang's use of personification, metaphor, or connotation express one his themes in "Garden of
Kay [80]
<span>Poet Kuangchi Chang did not remain in China long enough to be "re-educated." Following the Communist takeover he fled to the United States. His poem "Garden of My Childhood" describes China before the revolution as a peaceful, idyllic garden with a violent horde rapidly approaching. A vine, the wind, and the sea are each personified, and each beckons for him to run. It is not until "eons later," when he is "worlds away," that his "running is all done," and he finds himself at his destination: another garden, just like the one he had left behind.</span>
6 0
3 years ago
Which of the following describes the efficiency of real machines?
Leokris [45]
Choice-B is the true one.
3 0
3 years ago
Read 2 more answers
A 1.0 kg ball falls from rest a distance of 19.6 m.
Nimfa-mama [501]

Answer:

192.08J

19.6m/s

Explanation:

Since there will be no potential energy when the ball is on the ground, the change in potential energy is equal to the potential energy at the start when the ball is 19.6m above the ground.

PE=mgh

=(1)(9.8)(19.6)

=192.08J

v²=u²+2as, where v is the final velocity, u is initial velocity, a is acceleration and s is distance. Initial velocity is 0 since it starts at rest.

v²=u²+2as

v²=0²+2(9.8)(19.6)

v=√384.16

=19.6m/s

6 0
2 years ago
What is it that makes a magnet different from a piece of iron that is not mangetic?​
Alisiya [41]

Answer:

Under normal conditions, a magnetic material like iron doesn't behave like a magnet because the domains don't have a preferred direction of alignment. On the other hand, the domains of a magnet (or a magnetized iron) are all aligned in s specific direction.

7 0
3 years ago
Other questions:
  • Which statement is most likely true?
    9·1 answer
  • Which of the following units could be used for the average speed of an object? A. kilometers per hour (km/hr) B. miles per hour
    7·1 answer
  • Which situation describes the best example of rotational motion?
    8·2 answers
  • How is lightning related to static electricity?
    9·1 answer
  • In the Millikan oil drop experiment the measured charge of any single droplet was always a whole number multiple of -1.60 x 10-1
    8·1 answer
  • Whether or not bricks slide down the bed of the dump truck depends on. A) the mass of the bricks. B) the angle of the bed. C) th
    9·1 answer
  • Increasing excitatory signals above threshold levels for neural activation will not affect the intensity of an action potential.
    5·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST
    12·1 answer
  • Can a physical quantity have units but still be dimensionless?
    14·2 answers
  • How could you know that a chemical change has taken place?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!