Answers
Explanation:
40 m/s2
Formula for acceleration will be:
F = m*a
Force = mass*acceleration
•
•
F = m*a
= 40 * 180 - 140 = a
1600 = a
1600/40 = a
40 = a = 40 m/s2
Related Questions
Rank the balls in terms of their mass, lightest first, and acceleration, slowest first. Upload your data table to support your ranking.
Answers
Answer:
this may help
Explanation:
A track is made from a piece of channel iron as shown. A ball released at the left end of the track continues past the various points. Rank the speeds of the ball at points A, B, C, and D, from fastest to slowest.
help
Nicole has 2 glasses on the counter: one of water and one of sugar-water. She is baking a cake and needs to use the sugar-water for the glaze. Both glasses look identical, but one contains a mixture and the other contains a compound.
Is sugar-water a mixture or a compound? Define mixtures and compounds, and explain how, without tasting it, Nicole can test to make sure she is using the sugar-water in the glaze.
Answers
Answer:
sugar-water is a mixture not a compound.(homogeneous mixture.)
Explanation:
Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.
The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)
Answer: Nicole can take a small amount of sample from both of the glasses, she can place the samples in two separate containers and leave them out in the sun, so that the water gets evaporated. One of the two containers will contain a residue of sugar. The one containing the sugar residue, is the sugar-water solution.
Please write an introduction for a SHE task of Fire-Stick Farming.
Answers
Fire stick Managing the environment through farming Aboriginal people routinely burned grass to minimise fuel and promote new growth in order to attract grazing animals for hunting.
Why is farming important?Among the various ways that agriculture has an impact on society are the provision of food, habitat, and employment opportunities; the provision of raw materials for food and other goods; and the development of robust economies through commerce.
Why is farming beneficial to the environment?A large number of species use pasture and crops as both a habitat and a source of food, making up around 50% of the planet's livable land. Sustainable management of agricultural operations has the potential to safeguard watersheds, restore significant habitats, and improve the quality of the soil and water supply.
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PLEASE HELP ME Research ten stars from the list below and create a completed chart like the example provided.
Write a conclusion based on the data you collected.
Assignment Directions
Choose ten stars from the list to research and classify using apparent magnitude, size (compared to our sun), distance from the Earth, star location (constellation), and color.
Sirius
Canopus
Vega
Alpha Centauri
Procyon
Beta Centauri
Achernar
Alpha Crucis
Capella
Altair.
Create a chart like the example below for the stars you chose. The star example will help you to better understand how to fill in the information.
To help you analyze your data and write a conclusion, answer the following questions in paragraph form.
Which of the 10 stars that you chose was the largest?
Which of the 10 stars that you chose was the brightest?
Which star(s) would you be able to see without the aid of a telescope? Give a reason for this.
Was there a connection between the size of a star and a star's magnitude? Give an example from your data to support your answer.
Name a different property other than the ones in the chart that can also be used to classify stars.
Submission Requirements
Upload the completed chart.
Write a conclusion paragraph based on the five questions.
Answers
Answer:
A glance at the night sky above Earth shows that some stars are much brighter than others. However, the brightness of a star depends on its composition and how far it is from the planet.
Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs. (A light-year is the distance light travels in one year — about 6 trillion miles, or 10 trillion kilometers.) Astronomers also measure luminosity — the amount of energy (light) that a star emits from its surface.
Measuring star brightness is an ancient idea, but today astronomers use more precise tools to obtain the calculation. Specifically, they use the electromagnetic spectrum, focusing on the wavelengths visible to the human eyes. Every star has a distinctive spectrum of light, which to our eyes is rendered as a color.
Explanation:
A balance and a graduated cylinder are used to determine the density of a mineral sample. The sample has a mass of 16 g and a volume of 2 cm3. What is the density of the mineral sample?
Answers
Answer:
8g/cm³
Explanation:
density is mass per unit volume , it is measured in grams per unit volume
In 3 paragraphs, describe how weathering changes the earth's surface. Please do not copy and paste.
Answers
Answer:
Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time.
The effects of weathering disintegrate and alter mineral and rocks near or at the earth's surface. This shapes the earth's surface through such processes as wind and rain erosion or cracks caused by freezing and thawing. Each process has a distinct effect on rocks and minerals. Mechanical weathering increases the rate of chemical weathering. As rock breaks into smaller pieces, the surface area of the pieces increases Figure below. With more surfaces exposed, there are more surfaces on which chemical weathering can occur. Mechanical weathering may increase the rate of chemical weathering.
Weathering, erosion, and deposition are processes that act together to wear down and build up the Earth's surface. These processes have occurred over billions of years. Weathering is any process that breaks down rocks and creates sediments. Weathering causes the disintegration of rock near the surface of the earth. Plant and animal life, atmosphere and water are the major causes of weathering. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice.
PLEASE HELP ASAP!!!! 15PTS
How are 2,2-butanediol and 2,3,4-pentanetriol similar? Pick two.
EXPLANATION
2,2-butanediol is a four carbon chain with two hydroxyl groups both on the second carbon. 2,3,4-pentanetriol is a five carbon chain with three hydroxyl groups; one on carbon 2,3 and 4.
SELECT ALL THAT APPLY
Neither contain a hydroxyl group on an end chain carbon.
Neither contain four carbons in the parent chain.
Both contain a hydroxyl group on the second carbon.
Answers
Answer:
Both contain a hydroxyl group on the second carbon.
Neither contain a hydroxyl group on an end chain carbon.
Explanation:
2,2-butanediol Formula: C4H10O2
2,3,4-pentanetriol Formula: C5H12O3
Both contain a hydroxyl group on the second carbon.
Neither contain a hydroxyl group on an end chain carbon.
HELP! BEST ANSWER GET A FOLLOW AND BRAINLIEST
40.2 grams of Hydrogen Chloride (HCl) is decomposed. 12 grams of Chlorine (Cl) is formed. How many grams of Water (H2O) was formed?
(please give an explanation if you can, itś ok if you can either though)
Answers
Name and Title:
Include your name, instructor's name, date, and name of lab.
Objectives(s):
In your own words, what is the purpose of this lab?
Hypothesis:
In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.
Data:
Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element.
Hydrogen Helium Lithium Sodium Carbon Nitrogen
Moon One
Moon Two
Planet One
Planet Two
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.
Using two to three sentences, summarize what you investigated and observed in this lab.
Astronomers use a wide variety of technology to explore space and the electromagnetic spectrum; why do you believe it is essential to use many types of equipment when studying space?
If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth? Explain why. (Hint: Think about the carbon cycle.)
We know that the electromagnetic spectrum uses wavelengths and frequencies to determine a lot about outer space. How does it help us find out the make-up of stars?
Why might it be useful to determine the elements that a planet or moon is made up of?
Answers
Bart believes that mice exposed to radio waves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice near a radio for 5 hours. He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. he found that 8 out of 10 of the radio-waved mice were able to push the block away. 7 out of 10 of the other mice were able to do the same.
In Bart's Experiment, identify the Independent Variable.
Group of answer choices
Amount of Time for Test
Exposed Time to Radio Waves
Number of Mice in each Group
Number of Mice that pushed block away
Size of Blocks
In Bart's Experiment, identify the Dependent Variable.
Group of answer choices
Amount of Time for Test
Exposed Time to Radio Waves
Number of Mice in each Group
Number of Mice that pushed block away
Size of Blocks
In Bart's Experiment, identify the three Controlled Variables. (must choose all three!)
Group of answer choices
Amount of Time for Test
Exposed Time to Radio Waves
Number of Mice in each Group
Number of Mice that pushed block away
Size of Blocks
Answers
can i have brain?.........................................................................
What are all the breeds of dogs and how many breeds of dogs are there?
Answers
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed
There are currently more than 340 different breeds of dogs recognised throughout the world.
If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?
Answers
if i have 17 apples and i eat 17 apples how many pears do i have?
Answers
Answer:
If you eat all 17 apples, you will not have any apples left. However, the number of pears you have is not related to the number of apples you ate. So, the number of pears you have is unknown and not affected by the number of apples you ate.
What is the name given to this group of elements?
a.
halogens
c.
transition metals
b.
alkali metals
d.
noble gases
Answers
Answer: The answer is A. Halogens
Explanation:
I hope this helps you :)
Based on the evidence, write a scientific explanation of what type of wave is being exhibited when crowds at stadiums do “the wave."
Answers
Answer Transverse wave.
Explanation: People in the crowd stand (move upward)
to keep the wave going. This is a transverse
wave because the motion of the people is up
and down, and the wave travels around
How are the dark reactions that occur in plants dependent on the light reactions?
a.
The chemical energy used in the dark reactions is produced in the light reactions.
b.
The light reactions produce the oxygen necessary for the dark reactions to proceed.
c.
Light energy absorbed during the light reactions is used directly in the dark reactions.
d.
During the light reactions, carbon dioxide is converted to sugars, which are used during the dark reactions.
Answers
True or False: In cellular respiration, carbon dioxide and water are the reactants, and fuel and oxygen are the products.
Answers
Answer:
The statement is false.
Explanation:
In cellular respiration, the fuel (glucose) and oxygen are the reactants, and carbon dioxide, ATP and water are the products.
Answer:
It's False
Explanation:
Which tools do meteorologists use to help create weather forecasts? Choose ONE answer:
guesses
weather service maps
opinions from weather watchers
personal observations
Answers
Answer:
weather service maps
Explanation:
what is the net force required to give an automobile of mass 1600kg an acceleration of 4.5m/52?
Answers
Explanation :
It is given that,
Mass of an automobile, m = 1600 kg
Acceleration produced,
The second law of motion gives the relationship between the force acting and the acceleration as :
F = ma
So, the net force acting on the automobile is 7200 N.
I hope this helps!!
Part H In parts E, F, and G, which data sets (corrective lenses, glasses, or contacts) show the most similar variation between Doctors?
Answers
Answer: Doctor A Corrective Lenses: 745, 726, 769, 765, 756, 742, 757, 748, 770,
Explanation: I took the test! i have a great day :)
help me with this I only have one more
1156 g/L
= ________ kg/mL
Answers
The Answer is 0.001156.
1156 g/L = 1.156 kg/L
Since 1 L is equal to 1000 mL, we can convert kg/L to kg/mL by dividing by 1000:
1.156 kg/L = 1.156/1000 kg/mL
1.156/1000 kg/mL = 0.001156 kg/mL
Therefore, 1156 g/L is equal to 0.001156 kg/mL.
write a short story using the characteristics of the subatomic particles and their locations in the atom. For example, you need a positive character, a neutral character, and a negative character. You need two different locations. One to be the center location of the story and the other to be outside the center. At a minimum you should have at least 1 paragraph with about 5 sentences. Make sure that you use complete sentences.
Make sure it is school appropriate!!
Answers
If you put a hot dog into piranha solution, what happens?
it dissolves
becomes electroplated with salt
noithing - nonreactive
produces carbon triethylium oxide gas
Answers
Answer:
3
Explanation:
More scientificly explained
Pls answer it will be really helpful
Answers
Answer:
304 because 76% - 400 is 96, subtract 400 by 96
Blank blank is what causes the movement of Tetonic plate these take place in the mantle
Answers
Answer:
Radioactive Heat
Explanation:
(this should be right) it causes pressure to build and the plates to move.. correct me if im wrong
Complete the sentence
Ice crystals forming on a
window is a
physical change
chemical change
Answers
Answer:
Explanation:
physical change
What is a difference between how ants and elephants primarily use grouping for survival?
A. Ants use grouping for better chance of mating, and elephants use grouping for better access to food
B. Elephants use grouping for better chance of mating, and ants use grouping for better access to food.
C. Ants use grouping for cooperation, and elephants use grouping for protection of the young.
D. Elephants use grouping for cooperation, and ants use grouping for protection of the young.
Answers
Elephants use grouping for better chance of mating, and ants use grouping for better access to food. Thus option B is correct.
What is grouping for survival?Grouping for survival is defined as individuals of the same species (conspecifics) maintain spatial proximity with one another over time through social attraction mechanisms.
It can also be defined as the animals live in groups can assist each other in raising the young, hunting, keeping watch, gathering food, finding shelter, and surviving.
Furthermore, because the group increases the chances of survival for its members, group survival means personal survival. The individual benefits from supporting the group, and the group benefits from the individual's support. Such cooperative strategies increase the group's ability to gather the resources required for survival.
Our findings, when combined with previous research in this system, suggest that larger groups confer survival benefits by reducing predation rather than improving access to food or buffering against physiological stress.
Thus, Elephants use grouping for better chance of mating, and ants use grouping for better access to food. Thus option B is correct.
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How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
You are to write a poem or song about the planets and the information you submit have to be true about each planet.
Answers
Answer:
our solar system includes the sun and all the planets moons dwarf planets and asteroids that orbit around it the four planets closest to the sun include mercury venus earth and mars these inner planets are made of rock and metals they are quite small compared to the outer planets the four outer planets are called gas giants because they are made mostly of gases the outer planets include jupiter saturn uranus and neptune the most well-known dwarf planet in our solar system is Pluto
When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.
Answers
Answer:
Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.
Table B: Calculation of Kinetic Energy (KE)
Table B: Calculation of Kinetic Energy (KE)
Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500
To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.
For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2
Perform similar calculations for the other velocities and record the results in Table B.
Answer:
Explanation:mass of the bottle in each case is M = 0.250 kg
now as per given speeds we can use the formula of kinetic energy to find it
1) when speed is 2 m/s
kinetic energy is given as
2) when speed is 3 m/s
kinetic energy is given as
3) when speed is 4 m/s
kinetic energy is given as
4) when speed is 5 m/s
kinetic energy is given as
5) when speed is 6 m/s
kinetic energy is given as