Which of the following has the lowest density?
A. Mineral water
B. Air
C. Water
D. Salt water​

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

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 :

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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.

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.  

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)

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

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.

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.

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Answer:

dogs and cats

Explanation:

hope this helps

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.

Answer:

M = F × d

I hope it will be helpful for you.

Answer:

moment=force x perp. distance from the pivot

unit= Nm

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

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.

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.

Answer:

2

Explanation:

Plants make food in the chloroplasts(photosynthesis) and

animals eat other organisms.

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.

Answer:

the body produces stem cells

Explanation:

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:

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.

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.

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:

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

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.

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

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.

Answer:

It increases the wavelength of the sound and gets softer if the amplitude decreases

Explanation:

And can i have brainlist??

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

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.

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.

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).