Momentum is a vector quantity because it includes velocity, which is also a
vector quantity.
A. True
B. False
please:(
Answers
Answer: A; True
Explanation: Momentum is known to be a vector quality, and thus has been proven by modern scientists and resulting in this answer being true.
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Related Questions
why is it difficult for a car to round a curve at high speed
Answers
Answer:
Because the force required to produce this acceleration equals the mass of the car x acceleration, the group of the car is the same but the acceleration is a lot more hence a much bigger force is required. So this is why it's harder for cars to corner at a high speed rather than lower.
Answer:
Vehicles are heavy and have a lot of inertia. This means that if you drive too fast on a curve, your vehicle will keep going straight instead of going around the curve, no matter how hard you drive or slow down to keep it in your lane. Centrifugal force creates a strong outward pull on your vehicle. So all you need to do is slow down before entering a corner. Reducing your speed when you are already on a bend can cause your car to skid.
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MERRY CHRISTMAS! HAPPY HANUKKAH ALL THAT
Answers
The velocity of the vehicle is equal to 406.5 m/s. The velocity in Km/hr is 1463.4 Km/hr.
What is the velocity?Velocity can be demonstrated as a vector measurement of the direction of the object and the rate of motion of an object. The velocity of an object can be described as the change in the body's position w.r.t. time.
Velocity can be expressed as a vector quantity as it consists of magnitude as well as direction. A mathematical formula common and simplest way to find velocity.
v = d / t
Where v is the velocity, d is the distance covered and t is the time taken by the body.
The S.I. unit for velocity can be represented as m/s and can be expressed in terms of miles per hour (mph), and kilometers per hour (kph).
Given, the distance traveled by the vehicle, d = 100 m
The time taken by vehicle = 0.246 sec
The velocity of the vehicle, v = 100/0.246 = 406.5 m/s
We know that 1km = 1000m then 1 m = 10⁻³ Km
1 hour = 60 ×60 = 3600 s
1s = 1/3600 hr
Therefore, velocity, \(\displaystyle v = 406.5 \times \frac{3600}{1000} Km/hr\)
v = 1463.4 Km/hr
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Velocity = Distance / Time = 100 m / 0.246 s = 406.50 m/s
To convert m/s to km/hr, we need to multiply the velocity by 3.6:
Velocity in km/hr = Velocity in m/s x 3.6 = 406.50 m/s x 3.6 = 1463.80 km/hr
The steps I took to convert from m/s to km/hr were to multiply the velocity in m/s by 3.6, which is the conversion factor between meters per second and kilometers per hour.
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:
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
Sound travels fastest through
Answers
Answer: sound travels fastest only through solids.
What is Energy Transformation? (answer ASAP)
Answers
Answer: Energy transformation is the change of energy from one form to another.
Explanation: I explained it in the answer ^^
Energy transformation is the process by which energy is converted from one form to another. This conversion can occur in many different ways, such as through mechanical, thermal, electrical, or chemical processes. Energy transformation is a fundamental principle of the physical world, and it is central to our understanding of how the universe works. Energy cannot be created or destroyed, but it can be transformed from one form to another, and this is what allows us to harness energy for various uses in our daily lives. Examples of energy transformations include the conversion of electrical energy into mechanical energy in an electric motor, or the conversion of chemical energy into heat energy during a combustion reaction. Understanding energy transformations is important in fields such as physics, chemistry, and engineering, as it is essential for the design and optimization of energy systems and technologies.
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
For the effective radiation of heat from an electric heater. Why should we polish it to shine but not keep it clean or paint it green or black?
Answers
Answer:
Polish it to shine
Explanation:
why some materials allow to flow more easily than others
Answers
Answer:
Explanation: Typically, atoms are 'reluctant' to let go of their electrons, and this makes them bad conductors, and more like insulators. However, some atoms have their electrons bound loosely, and electricity can flow easily, make these types of atoms best of conducting electricity.
Answer: Bc some have more density than others
Explanation:
A student rolls a 3-kilogram ball down the same ramp used in Setup 2. The speed of the ball after 2 seconds was 4 meters per second. The student concludes that the kinetic energy of the 3-kilogram ball is identical to the 1-kilogram ball after it has rolled down the ramp for 2 seconds.
Explain whether the student’s conclusion is correct or incorrect. Use evidence from the investigation to support your answer.
Answers
Answer:
The conclusion is incorrect, according to the text.
Explanation:
the small small that is 1 kilogram must go more fast,because begin with more kinetic energy, and can roll more faster by it's light weight, the 3 kilogram ball must be more late for roll down, because have more potential energy than kenetic energy, so in conclusion the light ball go more fast and have more kenetic energy that the heavy ball.
Place the parts of the human circulatory system in order from highest to lowest degree of internal organization.
→ → →
Answers
Answer: The human circulatory system can be arranged from the highest to the lowest degree of internal organization as follows: Heart, Blood Vessels, Arteries, Veins, and Capillaries.
Explanation: The human circulatory system can be arranged from the highest to the lowest degree of internal organization as follows:
Heart: The heart is a vital organ responsible for pumping oxygenated blood to the body and deoxygenated blood to the lungs. It consists of chambers (atria and ventricles) and valves that regulate blood flow.
Blood Vessels: Blood vessels form a network of tubes that transport blood throughout the body. They can be classified into three types: arteries, veins, and capillaries.
Arteries: Arteries are thick-walled blood vessels that carry oxygenated blood away from the heart to various parts of the body.
Veins: Veins are blood vessels that transport deoxygenated blood from the body back to the heart. They have thinner walls compared to arteries and contain valves to prevent backflow.
Capillaries: Capillaries are tiny, thin-walled blood vessels that connect arteries and veins. They facilitate the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.
Please note that this arrangement is based on the internal organization of the circulatory system, with consideration given to the hierarchical structure and function of each component.
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Answer:
Cell, tissue, organ and organ system
Explanation:
The correct order from the lowest to the highest degree of internal organization is the following Cell, tissue, organ, and organ system then at last whole body. It is because the cells are produced in order to form the tissues in the body and in order for an organ to be produced tissues are essential and are formed and in order for a system.
For each of the following four topics, write a paragraph answering the questions below each topic. This exercise should help you decide which topic on which you would prefer to write.
1.Compare and contrast a sport that is played in two different parts of the world. Describe how differently it is played in the two regions, and the impact it has on the two societies.
a. What interests you about this topic?
b. What sport and regions do you think you would choose and why?
c. How would you go about getting information on this topic?
Answers
Being interested in a certain topic wants to study (or emerge as concerned with) that subject matter for its personal sake.
Describe how differently it is played in the two regions.dual sports activities are performed by two human beings opposing every different, while crew sports contain prepared companies of people competing in opposition to every different.twin sports are performed through two people opposing every different, while team sports activities involve organized businesses of humans competing with every other.Many sports activities rely on desires, which might be points scored in soccer, lacrosse, and floor hockey, whilst other sports activities depend upon points with a landing, runs, or falls.Learn more about team sports here:-
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A spaceship fires a movement thruster, releasing gases at high pressure.
What are the forces in the force pair for this example?
a) the force the gasses apply to the ship
the force the ship applies to the gasses
b) the force the gasses apply to space
the force the ship applies to the gasses
c) the force the gasses apply to space
the force the ship applies to gasses
d) the force the gasses apply to the ship
the force the ship applies to space
Answers
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
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Which method of separation would you use when working in the garden and trying to separate the dirt from the weeds?
filtration , distillation, evaporation, or sifting?
Answers
Sifting is the best method cuz all the dirt will be carried by wind.
brick has a mass of 100 G and a volume of 25 cm squared, if you chop the brick in half what is the density of one half of the brick?
Answers
Answer: Density is defined as mass divided by volume, therefore: 100g/25cm3 = 4 g/cm3.
Explanation:
Answer:
Density is defined as mass divided by volume, therefore: 100g/25cm3 = 4 g/cm3.
What does the amplitude of a light wave determine?
Answers
Hope this helps :)
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.
What is electrolytes and what does it look like?
Answers
Explanation:
Electrolytes are minerals that carry an electric charge They're found in your blood, urine and sweat and are vital to specific processes that keep your body functioning as it should.
They're often talked about in association with dehydration and mentioned in ads for sports drinks that promise to replace electrolytes lost through sweat.
Lab Report
Motion and Forces
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U4_ Lab_MotionAndForces_Alice_Jones.doc).
Introduction
What was the purpose purpose of the experiment?
The purpose of the experiment is to test the hypothesis.
What were the independent, dependent, and control variables in your investigation? Describe the variables for each part of the experiment.
Write a hypothesis based on observations and scientific principles.
Type your answer here:
Experimental Methods
What tools did you use to collect your data?
Questionnaires and observations.
Write your procedure. List each step so that another student could follow the procedure and repeat your experiment.
Type your answer here:
Data and Observations
Record your observations.
Type your answer here:
Conclusions
What conclusions can you draw about how the sum of forces acting on an object affect its motion? Write an evidence-based claim.
Type your answer here:
Which mass, A, B, or C, was the greatest? Use the observations from your experiment and your knowledge of Newton’s laws of motion to write an evidence-based claim.
Type your answer here:
Make a model that shows the forces acting on two blocks on a flat, frictionless surface:
A 1 N block at rest
A 1 N block with 2 N of force applied in one horizontal direction
Include arrows to represent the forces and labels to indicate the magnitude of each force. Use your model to compare and explain the motion of each block.
Type your answer here:
Answers
Answer's C
Explanation: The matter that surrounding this whole planet or time and frequencies the motion and forces that people can't determine unless made a hypothesis
Use the data in the table to explain how you could determine the volume of the block.
Answers
To find the volume of the block, subtract the initial water volume from the final water volume, convert the change in water volume to cubic centimeters, and consider it as the volume of the block.
To find the volume of the block using the measurements provided.
1. Calculate the change in water volume:
The initial water volume is given as 62.3 mL, and the final water volume is given as 89.5 mL. To determine the change in water volume, we subtract the initial volume from the final volume: 89.5 mL - 62.3 mL = 27.2 mL. This value represents the increase in water volume caused by placing the block in the graduated cylinder.
2. Convert the change in water volume to cubic centimeters:
Since 1 mL is equivalent to 1 cubic centimeter (cc), we can directly convert the change in water volume from milliliters to cubic centimeters. In this case, the change in water volume is 27.2 mL, which is also equal to 27.2 cc.
3. Determine the volume of the block:
When the block is placed in the graduated cylinder, it displaces some amount of water, resulting in an increase in water volume. By measuring this increase in volume, we can determine the volume of the block itself. In this case, the change in water volume of 27.2 cc represents the volume of the block.
By following these steps, we can find the volume of the block based on the provided measurements.
Therefore, By deducting the initial water volume from the final water volume and converting the difference in water volume to cubic centimeters, the block's volume can be calculated. the volume of the block is 27.2 cc.
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•Then I should :calculate the time of the block to fall
the photo shows a metal spoon just after it is placed in a bowl of hot soup. what will happen over time?
a. the kinetic energy of particles in the spoon will increase as thermal energy moves from the soup to the spoon
b. the kinetic energy of particles in the soup will increase as thermal energy moves from the spoon to the soup
c. the kinetic energy of particles in the spoon will decrease as thermal energy moves from the soup to the spoon
d. the kinetic energy of particles in the spoon will decrease as thermal energy moves from the spoon to the soup
Answers
Explanation: When an object is placed in the presence of a another hot object, the particles from the hot object transfers over to the object. So the kinetic energy of particle will increase in the spoon
im pretty sure, let me know if it’s wrong or if it’s correct.
How did the angel of the pendulum affect the period
Answers
Answer:The starting angle of a pendulum does not affect its period for .
Explanation: however, the period increases with increasing . The starting angle of a pendulum does not affect its period for.
A group of students gather for some fun during their summer break from school. Kendall and Jacoby have a water balloon fight during one of those “lazy” days of summer.
Marie, Gary, and Lois remember a video about work that their science teacher, Ms. Lewis, showed them before they left for vacation.
Marie says: “If Kendall throws a water balloon at Jacoby, there is no work being done. It’s just boys being boys.”
Gary says: “If Kendall throws a water balloon at Jacoby, there is work being done by Jacoby because he has to run.”
Lois says: “If Kendall throws a water balloon at Jacoby, there is work being done because Kendall had to exert a force that made the water balloon travel a certain distance to hit Jacoby.”
Which one of them is correct and why? Answer in complete sentences! You can type on this document and turn in.
Answers
Answer:
lois is right because throwing the water balloon is exerting a force running is not
Which statement would be an example of a climate report for Texas?
a. The average annual temperature in San Antonio is 20°C.
b. There is a good chance that severe thunderstorms will move through Dallas late tonight.
c. Tomorrow will be the hottest day of the year for residents of Houston.
d. People in Galveston can expect the temperature to drop into the low 60s later in the week
Answers
Hope it helped and if it did then pls mark brainliest. Also have a nice day : )
wrong im so sorry but i had this question on my test and got it right if this helped mark as brainiest please:)
Which is the definition of the equator?
A. The equator is half of a sphere, which is used to describe one half of the Earth.
B. The equator is the imaginary line that divides the Earth into two equal parts. It is also used as the basis for the word’s time zones.
The equator is the imaginary line that divides the Earth into two equal parts. It is also used as the basis for the word’s time zones.
C. The equator is an imaginary horizontal line drawn on the Earth equally between the North and South poles.
D. The equator is half of a circle used to describe the northern half of the Earth.
Answers
Answer:
D. The equator is half of a circle used to describe the northern half of the Earth.
Explanation:
hope it helps
Answer: C
Explanation: The equator divides the earth into North and South pole
help me pls i need the answer
Answers
1. A student practicing for a track meet ran 263 m in 30 sec. What was her average speed?
2. On the following day she ran 310 m in 30 sec, by how much did her speed increase?
Please answer both-
Answers
Answer: By 47
Explanation: subtract 310 and 263
A scientist uses a camera to study the stars.
How would the scientist most likely use this technology?
1 to replace all of the old data about stars
2 to predict the star count over a broad area
3 to write observations about what the sky looks like
4 to count the number of visible stars in the sky
Answers
Answer:
It would most likely be 3!
Explanation:
A scientist taking photos of the stars would be using those photos as a sort of documentation. The only reason to record this is for data or research purposes, meaning that 1 and 2 are incorrect. While 4 is a possibility, it is a fruitless endeavor, as even if you managed to count all the stars in the night sky at one point, it would completely discount every star not visible from that part of the globe, making the data false/pointless. Again, this is just my educated assumption, but I do think the answer is 3. Good luck :D
I'LL MARK BRAINLIEST PLZ HELP MEH I NEED IT RN I'LL BE YOUR FRIEND TOO *sniff*
what is a fossil fern providing evidence the continents once were joined (science)
Answers
Lets say a plant native to greenland is in canada (fossilized against canada's shore line) it's proof that at one moment they where actually connecting. <3
Animal remains (of one animal) found on two different continents.