PHYSICS
HIGH SCHOOL

Answer:

This is another application of Newton's second law of motion

Force = (mass) x (acceleration).

The quantities are a little more complicated in circular motion than

they are in plain old straight-line motion. In circular motion, the 'force'

is the centripetal force on the object, always pointing toward the center

of the circle. And the 'acceleration' is the centripetal acceleration, also

pointing toward the center of the circle, and equal to

(speed)² / (radius).

The only thing we really need to find is the centripetal acceleration, and

then we'll have everything needed to plug into the formula and calculate

the centripetal force.

Acceleration = (speed)² / (radius).

Speed = (distance) / (time) =

(3 circumferences) / (minute) =

(3 x 2pi x radius) / minute =

(6 pi x 8 meters) / (60 sec) = 0.8 pi m/s .

Acceleration = (speed)² / (radius) =

0.64 pi² m²/s² / (8 meters) = 0.08 pi² m/s² =

0.79 m/s² (rounded) .

Force = (mass) x (acceleration) =

(15 kg) x (0.79 m/s²) = 11.84 newtons

(about 2.66 pounds) .

I would not say that she "exerts this centripetal force". The fact of

the matter is much simpler: This is the force that something must

exert on her, pointing toward the center, in order to keep her revolving

around the center at that speed. It could be the friction between her

shoes and the platform, if she's standing on the merry-go-round.

It could be a rope tied between her ankle and something at the center

of the rotating platform. It could be the safety belt on the horse that

she's riding. Whatever it is, something has to constantly pull her toward

the center of the platform, with a force of 11.84 newtons, otherwise her

15kg body will not travel in that circular path.

This is another application of Newton's second law of motion

Force = (mass) x (acceleration).

The quantities are a little more complicated in circular motion than

they are in plain old straight-line motion. In circular motion, the 'force'

is the centripetal force on the object, always pointing toward the center

of the circle. And the 'acceleration' is the centripetal acceleration, also

pointing toward the center of the circle, and equal to

(speed)² / (radius).

The only thing we really need to find is the centripetal acceleration, and

then we'll have everything needed to plug into the formula and calculate

the centripetal force.

Acceleration = (speed)² / (radius).

Speed = (distance) / (time) =

(3 circumferences) / (minute) =

(3 x 2pi x radius) / minute =

(6 pi x 8 meters) / (60 sec) = 0.8 pi m/s .

Acceleration = (speed)² / (radius) =

0.64 pi² m²/s² / (8 meters) = 0.08 pi² m/s² =

0.79 m/s² (rounded) .

Force = (mass) x (acceleration) =

(15 kg) x (0.79 m/s²) = 11.84 newtons

(about 2.66 pounds) .

I would not say that she "exerts this centripetal force". The fact of

the matter is much simpler: This is the force that something must

exert on her, pointing toward the center, in order to keep her revolving

around the center at that speed. It could be the friction between her

shoes and the platform, if she's standing on the merry-go-round.

It could be a rope tied between her ankle and something at the center

of the rotating platform. It could be the safety belt on the horse that

she's riding. Whatever it is, something has to constantly pull her toward

the center of the platform, with a force of 11.84 newtons, otherwise her

15kg body will not travel in that circular path.

HIGH SCHOOL

Form of communication that reaches large audiences without personal contact.

Socialization is the process of internalization of the norms and ideologies of society by an individual. It encompasses learning and teaching to attain social and cultural continuity. It also has various forms. One of which is the MASS MEDIUM/MEDIA which is a form of communication that does not need personal contact to relay or convey and information. Examples of which are books, films, internet, magazines and so forth.

The form of communication that doesn't require personal contact and capable of getting to a large audience is referred to as mass media.

What is Communication?This is the process in which information is transferred from one person to another.

Mass media which comprises of newspapers, internet etc reach large audiences without personal contact and is the commonest means in these present day.

Read more about Mass media here brainly.com/question/17658837

HIGH SCHOOL

A factor that influences your resting metabolic rate is

Gender....................

Answer:

ITS GENDER

Explanation:

MEN TEND TO HAVE A FASTER METABOLISM DUE TO HORMONAL CHANGES.

HIGH SCHOOL

Micah knows that a car had a change in velocity of 15 m/s. To determine acceleration, Micah also needs the_______________ of the total trip in seconds.

Answer:

Duration of the total trip

Explanation:

Acceleration is defined as the rate of change of velocity of an object:

where

is the change in velocity

is the duration of the change in velocity

Acceleration is measured in meters per squared seconds, . Also, we should note that acceleration is a vector quantity, so in order to completely define acceleration we also need to specify the direction.

Answer: Time

Explanation: Took the test and got it right! :)

HIGH SCHOOL

Ionic metallic and covalent bonds are examples of what type of forces

Intramolecular forces

Answer: intramolecular forces .

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