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
Citrus2011 [14]
3 years ago
14

The diagram shows a person using a piece of gym equipment to lift weights.

Physics
2 answers:
Lelechka [254]3 years ago
5 0

Answer:

C. The lower legs are levers, and the knees are fulcrums. The ankles hold the loads.

Explanation:

As we know that while the person is doing exercise the weight is hold by the ankles as it is placed there.

Now the lower legs are bend while doing the exercise so we can say that lower legs are acting like lever which can rotate about one end and at the other end it is holding the weight

Now the knees are acting like fulcrum here because they are supporting the lower legs in such a way that they can rotate about its one end connected to knees

so correct answer will be

C. The lower legs are levers, and the knees are fulcrums. The ankles hold the loads.

ki77a [65]3 years ago
3 0

Answer:

C. The lower legs are levers, and the knees are fulcrums. The ankles hold the loads.

Explanation:

You might be interested in
A pendulum bob executing simple harmonic motion has 2cm and 12Hz as amplitude and frequency respectively. Calculate the period o
Jobisdone [24]

Answer:

Explanation:

The amplitude is extraneous information for this question.

Period (T) is simply a measure of time (how long it takes to complete a full cycle).

The frequency (f), is the reciprocal (how many cycles it can complete per unit of time).

The frequency reported is 12Hz.  Hz is a unit meaning "cycles per second"

Thus 12cycles = 1second.

To find the number of seconds per cycle, simply create the other unit fraction and simplify:

T=\frac{1second}{12cycles}\\T=0.8\bar{3}\frac{seconds}{cycle}\\

T=0.83seconds

7 0
2 years ago
Intro to Springs and Hooke’s law
wel
A spring is an object that can be deformed by a force and then return to its original shape after the force is removed.
Springs come in a huge variety of different forms, but the simple metal coil spring is probably the most familiar. Springs are an essential part of almost all moderately complex mechanical devices; from ball-point pens to racing car engines.
There is nothing particularly magical about the shape of a coil spring that makes it behave like a spring. The 'springiness', or more correctly, the elasticity is a fundamental property of the wire that the spring is made from. A long straight metal wire also has the ability to ‘spring back’ following a stretching or twisting action. Winding the wire into a spring just allows us to exploit the properties of a long piece of wire in a small space. This is much more convenient for building mechanical devices.
6 0
3 years ago
Explain what happens to the pitch of a cell phone ringing when the amplitude of a sound wave increases.
rewona [7]
As the amplitude of a sound wave increases the pitch of the ringing would be much higher (like if you were to inhale helium.. just with a phone)
3 0
3 years ago
Read 2 more answers
Two trains are traveling side-by-side along parallel, straight tracks at the same speed. In a time t, train A doubles its speed.
sergij07 [2.7K]

Answer:

derdddrdickdd

Explanation:

3 0
3 years ago
a ball is thrown straight up with an initial speed 40m/s.a) how high does it go? b) what will be its velocity be in 7 secs?c) ho
Vinil7 [7]

By how much would its speed reading increase with each second of fall? ... Ex 3.24 For a freely falling object dropped from rest, what is its acceleration at the end of the 5th second ... Pb 3.3 A ball is thrown straight up with an initial speed of 30 m/s. How high does it go, and how long is it in the air (neglecting air resistance)?.


4 0
3 years ago
Other questions:
  • While planets are smaller than stars, planets are generally larger than which of the following?
    15·2 answers
  • Final exam answers for physical science apex?
    10·1 answer
  • Which of the following statements is true?
    6·2 answers
  • Consider the medium of air as defined by the use of radio frequency. What made some of the early standards so slow compared to t
    15·1 answer
  • 1 km = 100 m. how many meters are in 2500 km?
    5·2 answers
  • Which of newtons laws does F=MA represent
    11·2 answers
  • Radio transmissions show observers in Houston that the International Space Station is 323 miles away, the Chi- nese space statio
    13·1 answer
  • Which exoplanet has the most Earth-like orbit?​
    15·1 answer
  • Describe a situation where an object would have potential energy transformed into kinetic energy?
    12·2 answers
  • ) The angular acceleration of the disk is defined by ???? = 3t 2 + 12 rad/s, where t is in seconds. If the disk is originally ro
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!