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Related Questions
I NEED A SCIENCE EXPERT TO GIVE ME THE RIGHT ANSWER TO THESE ASAP
Answers
Answer:
Control variable
Random variable
If two objects are dropped, they both hit the ground at the same time.
someone help me please
Answers
Answer:
F=ma
a= acceleration
F= force
m= mass
16N = 8m/s² x m
m= 16N/ 8m/s²
m= 2kg
Which of the following wavelengths of light from distant stars and other objects are
observable from the ground? (More than one may be observable)
(a) Ultraviolet (400 to 1 nm wavelength)
(b) Gamma-ray wavelength (0.001 nm and shorter wavelength)
(c) Visible (Optical) (700 to 400 nm wavelength)
(d) X-ray wavelength (1 to 0.001 nm wavelength)
(e) Near-infrared (10 ffm to 0.7 ffm wavelength)
(f) Long-wavelength radio (100 km to 10 m wavelength)
(g) Far- and mid-infrared (about 100 to 10 ffm wavelength)
(h) Intermediate-wavelength radio (10 m to 1 cm wavelength)
(i) Microwave radio (1 cm to about 100 ffm wavelength)
Answers
Answer:
its C
Explanation:
its (C)
Which option is a key point of cell theory?
the answers are
1. Cells are the basic structural unit of all living organisms.
2. Some cells can burn food molecules to release energy, but some cannot.
3. Cells can repair neighboring cells, but not themselves.
4. All cells that make up an organism are similar to each other.
helppppppp I am doing a quiz
Answers
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.!
Physics acceleration
A force of 360 N [East] was applied by a student on a box with a mass of 50 kg.
What is the acceleration of the box if a frictional force of 340 N acts in the
opposite direction?
Answers
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.
What is acceleration?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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If a virus were to infect and destroy only the chloroplast in a cell, how would that affect plants cells ability to make ATP
Answers
Answer:
por ver cp
Explanation:
sisisi cp osea caldo de pollo
Which form of energy provides power for a gas stove?
A. nuclear energy
B. electrical energy
C. chemical energy
D. sound energy
Answers
Answer:
The gas, which is usually a hydrocarbon fuel, provides the energy. So when the fuel burns with oxygen in the air, it creates heat energy.
Explanation:
Therefore, chemical energy in carbon is released during the combustion process. Carbon dioxide is created, because the carbon-oxygen chemical bonds in the carbon dioxide form which releases heat.
Hope this helps! Have a good day :)
Gas stoves transforms chemical energy from natural gas into heat energy.
Hurry Plz 50 points and possibly Brainlest.
Your thumb contains the only saddle joint in the entire body. How would your hand function differently if your thumb contained a pivot joint? What if it contained a ball and socket joint? Describe four consequences of having a different type of joint in the thumb.
P.S. Detailed Response plz
Answers
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.
what is the difference between a respirator and a ventilator
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mark me as BRAINLIEST
A 15 kg chunk of ice falls off the top of an iceberg. If the chunk of ice falls 8m to the surface of the water what is its velocity?
Answers
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
please help i'll mark the brainlest
What are two projects that X decided to "kill"? Why did they abandon these projects
Answers
sorry,pls I don't understand
an apple has a mass of 2kg. it is 3 m above ground. What is its potential energy?
Answers
Answer:
PE = 58.8J
Explanation:
potential energy = mgh
mass = 2kg
g = 9.8m/s^2
h = 3m
what are the condition required work to be done
Answers
Answer:
The first is that the object moves
why are astronauts weightless in the space station?
Answers
Answer:
Astronauts float around in space because there is no gravity in space. Everyone knows that the farther you get from Earth, the less the gravitational force is. Well, astronauts are so far from the Earth that gravity is so small. This is why NASA calls it microgravity.
Explanation:
proposed amendment on no more federal income tax
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An object is traveling at a constant velocity of 8 m/s when it experiences a constant acceleration of 3.5 m/s2 for a time of 40 s. What will its velocity be after that acceleration? *
Answers
Answer:
140 m/s
Explanation:
v = u + at
v = 8 + 3.5(40) = 140 + 8 = 140
which transition will lead to the emission of light with longer wavelength?
Answers
Answer:
(C)
Explanation:
its C ok
The transition that will lead to the emission of light with longer wavelengths is n = 3 to n = 2. The correct option is c.
What is the emission of light?The largest energy change, and hence the shortest wavelength, x nm, would occur during the transition from the highest to the lowest energy levels. When an electron moves from the n = 5 to the n = 1 level, an atom emits yellow light.
The Bohr model of the atom is named for Niels Bohr, who created a model of the electron in which electrons were arranged into energy levels using observations of atomic spectra.
Because electrons can only exist in the energy levels and not in the intermediate states, they must absorb or emit a certain amount of energy to change energy levels.
Therefore, the correct option is c. n = 3 to n = 2.
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The question is incomplete. Your most probably complete question is given below:
a. n = 1 to n = 3
b. n = 4 to n = 3
c. n = 3 to n = 2
d. n = 3 to n = 1
e. n = 2 to n = 3
A silica bulb of negligible expansivity holds 0.3kg of mercury at 00 C when fall. Some steel balls are introduced and remaining space is occupied at 00 C by 250gm of mercury. On heating the bulb and its contents to 1000 C, 5gm of mercury overflow. Find the linear expansivity of the steel.[γ=1.8*10- 6 / 0 C]
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Answer:
sorry I don't know the answer for this question
Identifying the Parts of an Ecosystem
Animals at a water hole in a barren area. Gazelles are on the near shore, zebras are in the water, and giraffes are at the far edge.
Use the image and the drop-down menus to match the parts of an ecosystem to each description.
All the zebras:
Zebras, gazelle, giraffes, trees:
A giraffe:
Gazelle, zebras, giraffes, water, trees, soil:
Answers
Answer:
p c o e
Explanation:
Answer:
Explanation:
pcoe
Choose the correct definitions of speed, velocity, and acceleration. Check all that apply. Acceleration tells us in which direction the object is going. Speed is the rate of change of velocity in time. Acceleration is the rate of change of velocity in time. Velocity is used to describe changes in the movement direction of the object. Acceleration tells us how far the object will go in a certain amount of time. Velocity is used to describe how fast the object is moving and tells us in which direction it is going. Speed is used to describe how fast the object is moving. Velocity is the rate of change of speed in time. Speed is used to describe how fast the object is moving and tells us in which direction it is going.
Answers
We have thatThe options that define Speed, Velocity,Acceleration.
Speed is used to describe how fast the object is moving.Acceleration is the rate of change of velocity in time.Velocity is used to describe how fast the object is moving and tells us in which direction it is going.Options
B,D,E
From the question we are told
Choose the correct definitions of speed, velocity, and acceleration. Check all that apply.
Acceleration tells us in which direction the object is going. Speed is the rate of change of velocity in time. Acceleration is the rate of change of velocity in time. Velocity is used to describe changes in the movement direction of the object. Acceleration tells us how far the object will go in a certain amount of time. Velocity is used to describe how fast the object is moving and tells us in which direction it is going. Speed is used to describe how fast the object is moving. Velocity is the rate of change of speed in time.Speed is used to describe how fast the object is moving and tells us in which direction it is going.
Generally
Acceleration is the rate of change of velocity in time.Velocity is used to describe how fast the object is moving and tells us in which direction it is going.Speed is used to describe how fast the object is moving without its direction in considerationHence
The options that define Speed, Velocity,Acceleration.
Speed is used to describe how fast the object is moving.Acceleration is the rate of change of velocity in time.Velocity is used to describe how fast the object is moving and tells us in which direction it is going.Options
B,D,E
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WHAT FITNESS INJERIES ARE AMOUNG THE EASIEST TO AVIOD
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Answer:
eye ,mouth,and,ears face
Answer:
knee, elbow, and wrist
Explanation:
If you can please help thanks
Answers
Answer:
2
Explanation:
3.1 Two waves A and B have frequencies 256 Hz and 1024 Hz respectively have amplitude in ratio 3:1 1.What is their ratio of frequencies? Which wave represents a higher pitch
2.which sound is louder
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Answer:
1. the one with the raito
2. the one that stubbed their toe
Explanation:
if a hot air balloon is seen rising above the top of a hill, what is the top of the hill called?
Answers
Answer:
If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called?
A. delta point
B. distance system
C. coordinate system
D. reference point
It is reference pointhope it helps :)
HELP PLZZZZZZZZZZZZZ
Answers
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!!
a ball is thrown at an original speed of 8.0 m/s at an angle of 35° above the horizontal. if there is no air resistance, what is the speed of the ball when it returns to the same horizontal level?
Answers
The speed of the ball when it returns to the same horizontal level is 8 m/s.
The given parameters;
initial speed of the ball, u = 8 m/sangle of projection, θ = 35⁰During the motion of a projectile, the speed of the projectile reduces as the projectile moves upwards and eventually becomes zero at the maximum height.
As the projectile moves downwards, the speed of the projectile starts to increase and it will become maximum (equal to the initial speed) before the projectile hits the ground.
Thus, we can conclude that the speed of the ball when it returns to the same horizontal level is 8 m/s.
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What affects the vertical (y-component) of a projectile?
A. Gravity
B. Air resistance
C. Velocity
D. Speed
Answers
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.
PLS MARK BRAINLIEST
1. Width of A postage stamp is one m, 15 cm, or 20 mm
2. A thickness of ACD 0.1 m 0.01 m or 0.001 m
3. Height of a bus 152.4 mm, 20M, or 250 cm
4 Length of an inch worm 25.4 mm, 25.4 cm or 0.254 m
5. Length of a football field 91.44 m 200 m or one km
Will give brainless
Answers
2 - 0.001 m
3 - 20 m
4 - 25.4 mm
5- 91.44
Hope this helps :)
An individual’s mental predisposition that influences perceptual expectations is one’s perceptual __________. A. bias B. knowledge C. assumption D. set
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[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
The Correct choice is D
An individual’s mental predisposition that influences perceptual expectations is one’s perceptual set .
How can we show magnetic field lines?
Answers
Answer:
Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.
Explanation:
have a beautiful day ahead
Magnetic fields can be mapped out using small plotting compasses : place the plotting compass near the magnet on a piece of paper. move the plotting compass to many different positions in the magnetic field, marking the needle direction each time. join the points to show the field lines.