Which of the following has the lowest density?
A. Mineral water
B. Air
C. Water
D. Salt water
Answers
Answer:
Air.
Explanation:
Mineral water, Water, and Salt water all have density in high amounts. Air doesn’t. It’s literally air.
Hope this helps and pls mark me brainliest if it did :)
Related Questions
What two gases in the atmosphere do animals and plants need to breathe and grow?
Answers
Answer: Explanation:
Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.
Three blocks are shown: Three blocks are shown. Block A has mass 3 kilograms, length 6 centimeters, height 4 centimeters, and width 2 centimeters. Block B has mass 1 kilograms, length 6 centimeters, height 2 centimeters, and width 4 centimeters. Block C has mass 2 kilograms, length 2 centimeters, height 6 centimeters, and width 4 centimeters. Which statement is correct? Block A has the greatest density. Block B has the greatest density. The density of Block A is equal to the density of Block B. The density of Block B is equal to the density of Block C.
Answers
Answer:
Block A has the greatest density.
Explaination:
Block A density:0.0625 kg/cm3
Block B density:0.020833 kg/cm3
Block C density:0.041667 kg/cm3
state how you would calculate the moment about a pivot. Give the equation and appropriate units
Answers
Answer:
M = F × d
M = F × dM = moment in newton metres (Nm)M = F × dM = moment in newton metres (Nm)F = force in newtons (N)M = F × dM = moment in newton metres (Nm)F = force in newtons (N)d = perpendicular distance of the force to the pivot in metres (m)I hope it will be helpful for you.
Answer:
moment=force x perp. distance from the pivot
unit= Nm
Discuss one component of your school's recycling system that could be automated and predict the economic impact.
Answers
One component of my school's recycling system that could be automated is the sorting of recyclables. Currently, the school relies on students and staff to sort recyclables into the appropriate bins, which can be time-consuming and may result in contamination if materials are not sorted properly.
Automating the sorting process with a machine or conveyor belt system could improve the efficiency and accuracy of the recycling system. It could also potentially reduce labor costs associated with manual sorting.
The economic impact of automating the sorting process would depend on the initial cost of the equipment and any associated installation or maintenance costs. However, over time, the improved efficiency and accuracy of the system could result in cost savings for the school. Additionally, the increased efficiency of the system could potentially lead to increased recycling rates, which could result in cost savings for waste disposal and potentially generate revenue through the sale of recycled materials.
Answer:
Our school has color coded virtual trash cans. For example, a trash can for only paper will only accept paper items, if the item put inside is not paper, it will litter it out and all students have cleaning duties throughout the week so even if you or someone litters you’ll probably have to clean it up at some point anyways. I honestly think it’s very cool. (i wish this was true smh).
Does noise have a significant effect on streaming videos from the cloud? Why
or why not?
O A. Yes, because analog signals are used to stream from the cloud,
and analog signals are distorted by noise.
B. No, because digital signals are used to stream from the cloud, and
noise has a minimal effect on their reliability.
O C. No, because analog signals are used to stream from the cloud,
and analog signals are not distorted by noise.
D. Yes, because digital signals are used to stream from the cloud,
and noise makes the signals unreliable.
Answers
Answer:
B.)
Explanation:
No, noise does not have a significant effect on streaming videos from the cloud because digital signals are used to stream from the cloud, and
noise has a minimal effect on the reliability of the digital signals.
What is a sound wave?It is a type of mechanical wave composed of the disturbance caused by the movements of the energy. A sound wave travels through compression and rarefaction in an elastic medium such as air.
The microphone on an AM radio is not working properly means sound waves are not transforming into electrical signals.
Sound waves will not be transformed into electrical signals is the reason that microphone on an AM radio is not working properly.
Analog signals are very much affected by the noise but the digital signals have minimum variation due to the presence of the noise.
Noise does not have a significant effect on streaming videos from the cloud because digital signals are used to stream from the cloud, and
Noise has a minimum effect on the quality of the digital signals. Therefore the correct option is B.
Learn more about sound waves from here
brainly.com/question/11797560
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Which term is described as the height of a wave from its rest position to its crest?
Question 3 options:
A) amplitude
B) wave height
C) crest height
D) wavelength
Answers
Answer:
A)
Explanation:
amplitude is the amount of amps or decibals a sound wave is and is measured by going high and low depending on the sound.
Because it measures the height of decibels going high and low, hope this makes sense :)
What happens when you increase the amplitude of a sound?
it makes the sound travel faster
it makes the sound louder
it increases the wavelength of the sound
it increases the frequency of the sound
Answers
Answer:
It increases the wavelength of the sound and gets softer if the amplitude decreases
Explanation:
And can i have brainlist??
Students have a small steel ball and a large steel ball, and they have a short ramp and a tall ramp.
The students want to find out if a ball's size affects how far it can roll. They also want to find out if the height of the ramp affects how far the ball can roll.
They do the following experiment: (second image)
The students finish conducting their tests and conclude that using a taller ramp and a larger ball will make the ball roll further. Is their conclusion based on a reliable experiment?
A.Yes, because they used the same color balls.
B.No. They did not do an additional test to compare the results using the short ramp.
C.No. The small ball should have been pushed with more force.
D.Yes, because they changed the height of the ramp.
Answers
Answer the larger ball will reach late.
Explanation:the smaller ball will reach before because it's density is low because of its small size and the small ball will reach before because it's lighter
What does your body use to replace tissues and organs?
Answers
Answer:
the body produces stem cells
Explanation:
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answers
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
learn more about Potential Energy :
https://brainly.com/question/14404024?referrer=searchResults
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How can removing thermal energy afect the state of matter? (Check all that apply)
a). When thermal energy is removed from water vapor the temperature decreases and condensation can occur.
b).When thermal energy is removed from a liquid the particles slow down and a water vapor is formed.
c). When thermal energy is removed from a liquid the temperature decreases, the particles slow down, and freezing occurs forming a solid.
d). When thermal energy is removed from water vapor the particles slow down and evaporation occurs.
Answers
List three evidences that show that the Bible is the Word of God.
Answers
Answer:1.God tells us that He is the Author (2 Peter 1:20-21 Open in Logos Bible Software (if available) & 2 Timothy 3:15-17 Open in Logos Bible Software (if available))
1.The Old Testament and New Testament Authors understood they were writing the Word of God. Common Old Testament phrase – “Thus saith the Lord”. The Apostle Peter confirmed the Apostle Paul’s writings as Scripture (2 Peter 3:16)
3.Its Historical Accuracy – as verified by archeology, which has never contradicted the Bible, but only confirms and silences its critics.
Explanation:
Answer:
Many people question who the author of the Bible is and wonder if the Bible is really the Word of God. I want to give you five reasons to affirm that the Bible is God's Word.
The Word of God: Evidence that Scripture is Divine
First, I believe the Bible is the Word of God because of its scientific accuracy. The Truth of the Word of God tells us that God “hangeth the earth upon nothing” (Job 26:7). How did Job know that the earth hung in space before the age of modern astronomy and space travel? The Holy Spirit told him. The scientists of Isaiah’s day didn’t know the topography of the earth, but Isaiah said, “It is [God] that sitteth upon the circle of the earth” (Isaiah 40:22). The word for “circle” here means a globe or sphere. How did Isaiah know that God says upon the circle of the earth? By divine inspiration.
Secondly, the Bible is affirmed through historical accuracy. Do you remember the story about the handwriting on the wall that is found in the fifth chapter of Daniel? Belshazzar hosted a feast with a thousand of his lords and ladies. Suddenly, a gruesome hand appeared out of nowhere and began to write on a wall. The king was disturbed and asked for someone to interpret the writing. Daniel was found and gave the interpretation. After the interpretation, “Then commanded Belshazzar, and they clothed Daniel with scarlet, and put a chain of gold about his neck, and made a proclamation concerning him, that he should be the third ruler in the kingdom.” (Daniel 5:29). Basing their opinion on Babylonian records, the historians claim this never happened. According to the records, the last king of Babylon was not Belshazzar, but a man named Nabonidas. And so, they said, the Bible is in error. There wasn’t a record of a king named Belshazzar. Well, the spades of archeologists continued to do their work. In 1853, an inscription was found on a cornerstone of a temple built by Nabonidas, to the god Ur, which read: “May I, Nabonidas, king of Babylon, not sin against thee. And may reverence for thee dwell in the heart of Belshazzar, my first-born favorite son.” From other inscriptions, it was learned that Belshazzar and Nabonidas were co-regents. Nabonidas traveled while Belshazzar stayed home to run the kingdom. Now that we know that Belshazzar and Nabonidas were co-regents, it makes sense that Belshazzar would say that Daniel would be the third ruler. What a marvelous nugget of truth tucked away in the Word of God!
Explanation:
explain why severe storms occur along front
Answers
Answer:
Violently rising air ahead of cold fronts often leads to powerful thunderstorms.
Explanation:
Answer:
Stormy weather as the warm air mass at the surface rises above the cool air mass,
Explanation:
vigorous rising motion is often produced, leading to the development of showers and occasionally severe thunderstorms.
Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. ... These clouds form in the warm air that is high above the cool air. As the front passes over an area, the clouds become lower, and rain is likely.
How can you make an item that is made of magnetic material become a permanent magnet instead of a temporary magnet?
a.You can leave it in the magnetic field of an actual magnet for a long time.
b.You can heat it while it is being influenced by a magnetic field.
c.You can put it in a very strong magnetic field.
d.You can do any of the above.
Answers
Answer:
C
Explanation:
think of it this way. Have you ever tried to pick up paperclips with a magnet then get more paperclips attached? the paperclips are in the magnetic field amd are temporary charged.
Give me 2 animals to combine their inherited traits
Answers
Answer:
dogs and cats
Explanation:
hope this helps
A pendulum with a period of 1.8 s on Earth is moved to another planet. On the new planet, its period is 2.5 s. What can you conclude about this new planet?
Answers
Answer:
The force of gravity on the new planet is less than it is on Earth.
Explanation:
The period of a pendulum is inversely related to acceleration due to gravity. Therefore, if the period of the given pendulum increases, it must be due to a decrease in the force of gravity.
Why do organisms eat food? Be sure to explain your answer.
Answers
Answer:
Explanation:
Why do organisms eat food? Be sure to explain your answer.
Organisms need to eat food to get energy. They need the energy to perform an activity or function. To add on, it develops the immunity to fight against infectious diseases. It contains essential nutrients to maintain life and growth.
Sample Response: Organisms eat to obtain carbohydrates, lipids, and proteins, which are found in food. They then use these molecules for energy and growth.
What did you include in your response? Check all that apply.
Organisms eat food to obtain carbohydrates, lipids, and proteins, which are found in food.
Organisms use these molecules for energy and growth.
Answer:
Organisms need to eat food to get energy. They need the energy to perform an activity or function. To add on, it develops the immunity to fight against infectious diseases. It contains essential nutrients to maintain life and growth.
Explanation:
Which item produces the magnetic field in the electromagnet?
Answers
The magnet produces a magnetic field. Item A makes the magnetic field in the electromagnet.
Explanation:
Item A is called a magnet. It has a North pole and a South pole. The electrons move from the North to the south poles, creating a magnetic force.
This Magnetic field creates a magnetic field around a magnet.
Answer: D
Explanation: it is made of metal which attracts the magnetic force field
Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity
Answers
Answer:
C. Beats
Explanation:
When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.
Answer:
beats
Explanation:
got it right
Compare how plants and animals get food.
1. Plants make food in the mitochondria and
animals eat other organisms.
2. Plants make food in the chloroplasts and
animals eat other organisms.
3. Plants make food in the chloroplasts and
animals make food in the mitochondria.
Answers
Answer:
2
Explanation:
Plants make food in the chloroplasts(photosynthesis) and
animals eat other organisms.
How has the car affected the way people live? Give three ways
Answers
2. The automobiles (cars) gave people access to jobs, places to live, and services.
3. Being able to travel from one to place to another in just a matter of minutes.
2. companies, like Amazon can deliver packages by car.
3. You can easily listen to music or de stress while in the car.
that 3rd is bad but the other two are good. :)
The law of conservation of energy states that energy can neither be created nor destroyed. What does “conservation” mean in this law?
Answers
Answer:
The word “conservation” refers to an amount that is unchanged. The total amount of energy in the universe remains the same. The energy in the universe is in balance.
↑
This is the Sample Response.
Explanation:
I did the assignment on Edge, 2022.
(See the attachment below.)
Hope this helped! Remember to check the 2 boxes: "Conservation refers to a total that stays the same" and "The total amount of energy in the universe is always the same"! <3
Question is in the uploaded photo
Answers
Answer:
1) Mass of the string = 0.0267kg
Explanation:
1) In the above question, we are given:
Length of guitar string = 60cm
Wave speed = 30.0m/s
Tension = 50N
9.81 N = 1 kg
50N = 50/9.81
= 5.10kg
We have the formula
v = √(F/μ)
Where F = the tension in the string in newtons,
v = the wave speed in m/s
μ = the mass per unit length of the string in kg/m
The formula for μ is derived as
v = √(F/μ)
Square both sides
v² = [√(F/μ)]²
v² = F/μ
μ = F/v²
From the question,
μ = 40/ 30.0²
μ = 0.044kg/m
To calculate the mass of the string we use the formula
μ = Mt / Lt = total mass/total length.
Total length = 60cm
In meters = 0.60m
0.044kg/m = Mt/ 0.60m
Mt = 0.0266666667kg
Mass of the string = Approximately 0.0267kg
2)
Can you help me? I don't quite understand this
Answers
Answer:
Explanation:
Input is when something is going in. For example the condenser is putting the steam into the compartment. Output is putting out. For example the steam going out of the cooling tower.
At summer camp, the swimming course runs the length (L) of a small lake. To determine the length of the course, the camp counselors measure the two "dry" legs of a right triangle. What is the length in meters of the swimming course in the figure below?
Answers
Answer:
47 m
Explanation:
Data obtained from the question include the following:
Length of dry leg 1 (L1) = 40 m
Length of dry leg 2 (L2) = 25 m
Length of swimming course (L) =..?
The length of the swimming course can be obtained by using pythagoras theory as shown below:
L² = L1² + L2²
L² = 40² + 25²
L² = 1600 + 625
L² = 2225
Take the square root of both side.
L = √2225
L = 47.1 ≈ 47 m
Therefore, the length of the swimming course is approximately 47 m.
One of your friends read online that a city near a fault has experienced an earthquake every 10 years. The last earthquake in this city happened 10 years ago so your friend says that another one will happen this year. Is your friend correct? Why or why not?
Correct answer gets brainly,
Answers
Answer
your friend is correct.
Explanation
If the fault has experienced an earthquake every 10 years and that the last one was 10 years ago then this year would be the year it goes off again.
Write a complete paragraph explaining how soccer will help enhance my dancing skills. (also it is in the physics category cuz PHYSICial education)
Answers
Answer:
Explanation: soccer Will Help your dancing skills tremendously because Soccer builds up the mussels in your legs that you would need for dancing as well.
how does a free fall drop ride work with newtons 3rd law?
Answers
Answer:
A falling object is in free fall when the only force acting on the force is gravity.
Explanation:
Because the only force acting on you is gravity, the scale no longer is pushing your cart up. Or in other words - your no longer pushing down onto the scale.
Which of the following explains the energy transformation in a hydroelectric power plant like the Buford Dam?
A.
Kinetic energy --> potential energy --> electrical energy
B.
Chemical energy --> electrical energy
C.
Nuclear energy --> chemical energy --> electrical energy
D.
Gravitational potential energy --> kinetic energy --> mechanical energy --> electrical energy
P.S Sorry if i ask a lot of questions im confused on my work!!
Answers
Answer:
A
Explanation:
The hydropower stations uses the energy from the falling water from the river or dam to generate electricity. The kinetic energy of the waves of water is used to move the turbine. This way the kinetic energy of water is converted into mechanical energy.
Why does a nucleus always have a positive charge?
Answers
Answer:
Explanation:
The nucleus is positive because only protons live in the nucleus. Electrons (which have a minus charge ) orbit around the nucleus, but only the nucleus has positive charges.