Holly is conducting an experiment in which she changes the voltage across a circuit and records the relative brightness of a light bulb in the circuit. She takes notes in the notebook below.


How might these notes be useful?
A.
They could help her teacher to understand what she did in the experiment.

B.
They could help someone interested in conducting the same experiment.

C.
They could help her remember the experiment in the future.

D.
all of these
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Answer:

~3°

Explanation:

x^2 + 0.16^2 = 3^2

x^2 + 0.0256 = 9

x^2 = 8.9744

x = sqrt(8.9744) = 2.99... = ~3

Answer:

eye ,mouth,and,ears face

Answer:

knee, elbow, and wrist

Explanation:

Answer:

There is 18

Explanation:

The gravitational potential energy of a falling apple is similar to the potential difference of a battery because both are energy stored in the object

The gravitational potential energy of a falling apple is maximum when the apple is at maximum height. As the apple begins fall to the ground the potential energy decreases and it will be transformed to kinetic energy.

[tex]P.E_i + K.E_i = P.E_f + K.E_f[/tex]

The potential difference in a battery is total energy stored in the battery.

Thus, the gravitational potential energy of a falling apple is similar to the potential difference of a battery because both are energy stored in the object.

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The similarity is that both the battery and the falling apple have stored energy.

We define the potential energy of an object as stored energy in that object.

A battery has potential energy, it is stored until you connect it to something and allow that energy to flow.

Similarly, when the apple is in the air it has potential energy, that will be transformed into kinetic energy as it falls (as the apple falls, its velocity increases, thus, the kinetic energy increases).

So both, the apple and the battery have stored energy, and that is the similarity between these two.

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Answer:

PE = 58.8J

Explanation:

potential energy = mgh

mass = 2kg

g = 9.8m/s^2

h = 3m

Answer:

1. the one with the raito

2. the one that stubbed their toe

Explanation:

Answer:

Gravity

EXPLANATION:

In the vertical or y direction, however, the projectile experiences the effect of gravity. As a result, the y component of the velocity  is not constant, but changes. The y component of the acceleration ay is the downward acceleration due to gravity.

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Answer:

A and B and D and C

Explanation:

Answer: I would say (A) (D) and (C)

Explanation: I am doing the same thing in my class as well.

Hope this helped.  :-)

Have a wonderful day!!

We have thatThe options that define Speed, Velocity,Acceleration.

Options

B,D,E

From the question we are told

Choose the correct definitions of speed, velocity, and acceleration. Check all that apply.

Speed is used to describe how fast the object is moving and tells us in which direction it is going.

Generally

Hence

The options that define Speed, Velocity,Acceleration.

Options

B,D,E

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Answer:

The saddle joint allows movement in different directions but only a small amount of rotation. The thumb is the only organ that has a saddle joint.

It should be noted that the bones that are in the saddle joint ensure the back and forth movement of the thumbs.

The pivot joint is the joint that's responsible for ensuring that one bone rotates around another bone. Ball and socket joint can be found in the shoulder and the hip and it allows for greater freedom of movement.

When compared to other movable joints, the saddle joint is prone to dislocation because it's free-moving and rotates on its own axis alone.

In conclusion, if the thumb contained a pivot joint or a ball and socket joint, it'll be able to move more freely.

A materiel that allows electricity to flow easily is called an conductor

Answer:

The first is that the object moves

Answer:

p c o e

Explanation:

Answer:

Explanation:

pcoe

Answer:

im in hardvard dont cheat and get good grades and become a graduate

it is c

Explanation:

Answer:

10m

Explanation:

Answer:

sorry I don't know the answer for this question

Answer:

When we can get the Kinetic energy from this formula KE= 1/2 M V^2and we can get the potential energy from this formula PE =  M g H

we can set that the kinetic energy at the bottom of the fall equals the potential energy at the top so, KE = PE

1/2 MV^2 = M g H

1/2 V^2 = g H

when V is the velocity, g is an acceleration of gravitational force (9.8 m^2/s) and H is the height of the fall (8 m).

∴ v^2 = 2 * 9.8 * 8 = 156.8

∴ v= √156.8 = 12.5 m/s

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The Correct choice is D

An individual’s mental predisposition that influences perceptual expectations is one’s perceptual set .

Answer:

F=ma

a= acceleration

F= force

m= mass

16N = 8m/s² x m

m= 16N/ 8m/s²

m= 2kg

Answer:

indepent valuable and random variable

Answer:

Control variable

Random variable

If two objects are dropped, they both hit the ground at the same time.

Answer:

1.Cells are the basic structural unit of all living organisms.

Answer:

It has three main parts:

1. All living things are made up of cells.

2. Cells are the basic building blocks of life.

3. All cells come from preexisting cells created through the process of cell division.

Explanation:

As science evolved, three more components were added to the theory. Some biology classes don’t require you to know these parts of the cell theory because they weren’t part of the original definition, but it’s still useful to be aware of them:

4. Energy flow occurs within cells.

5. Hereditary information is passed from cell to cell.

6. All cells have the same basic chemical composition.

So what does the cell theory actually mean? Let’s break it down. The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.

The cell theory definition states that cells are the building blocks of life. Cells both make up all living things and run the processes needed for life. Your hair, skin, organs, etc. are all made up of cells. In fact, each person is estimated to be made up of nearly 40 trillion cells! Each part of a cell has a different function, and your cells are responsible for taking in nutrients, turning nutrients into energy, removing waste, and more. Basically, everything your body does, it does because cells are directing the actionThe third part of the cell theory definition states that all cells come from preexisting cells. This means that cells don’t just appear out of thin air (known as “spontaneous generation”). New cells are always made from current cells. This means that all current life on the planet is descended from the very first cells, which first made an appearance on Earth roughly 3.5 billion years ago. Cells have been replicating themselves continuously ever since.

And what does the newer part of the cell theory state? Part four refers to the fact that, in all living cells, energy is continuously transformed from one type to another. Examples of these processes include photosynthesis (where plant cells convert light energy into chemical energy) and cellular respiration (where both plant and animal cells convert glucose into energy). Part five refers to DNA and the fact it is passed from parent cell to child cell. Finally, part six of the cell theory tells us that all cells are made up of the same chemicals: water, inorganic ions, and organic molecules.!

Answer:

The object will have an acceleration and the object's velocity will change.

Explanation:

If there is a net force acting on an object, the object will have an acceleration and the object's velocity will change. Newton's second law states that for a particular force, the acceleration of an object is proportional to the net force and inversely proportional to the mass of the object.

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Answer:

its C

Explanation:

its (C)

Answer:

The answer would be 1800W

Explanation:

P=15a × 120 V

F = F⁰ - Ff

F = 360 N - 340 N

F = 20 N

F = m × a

20 N = 50 kg × a

a = 20 N / 50 kg

a = 0.4 m/s²

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The acceleration of the box when the frictional force of 340 N is applied to the box will be 0.4 m/s².

In mechanics, acceleration is the measure of how quickly the velocity of an object changes with respect to time. The magnitude of accelerations as a vector. The acceleration of an object depends on the direction of the net force acting on it.

It is a vector quantity because acceleration has both a magnitude and a direction. Additionally, velocity is a vector quantity. The change in the vector of velocity during a period of time divided by the period of time is the definition of acceleration.

According to the question,

F = F⁰ - [tex]F_f[/tex]

F = 360 N - 340 N

F = 20 N

Force = m × a

20 N = 50 × a

a = 20 N / 50 kg

a = 0.4 m/s²

So, the acceleration of the box will be 0.4 m/s².

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#SPJ2

It would take about 8,300 hours to walk around the entire earth without stopping, which in days is 345.83, almost a full year.

Explanation:

I think that full 5 or 6 years

Answer:

[tex]resolving \: \\ (\downarrow_{ + }) \: s = ut + \frac{1}{2} g {t}^{2} \\ u = 0 ,\: g = 9.81m. {s}^{ - 2} , \: t = 5s \\ s =h= \frac{1}{2} g {t}^{2}, = \frac{1}{2} (9.81){5}^{2}\\=4.9\times25 \\ h=122.6m[/tex]

Answer:

2

Explanation: