Kristin is going 90 mph. Kristin is 20 miles behind a truck that is driving 50 miles per hour. How long will it take her to catch up to the truck? How far will she go in that time? Time to catch up to truck:
Distance traveled in that time:
Answers
Answer:
She will go 50t miles, = 1000/(r-50) miles.
Explanation:
Depends oh her speed. If she goes r mi/hr, it will take t = 20/(r-50) hours to catch up. She will go 50t miles, = 1000/(r-50) miles.
Related Questions
Use the chemical reaction to answer the question.
Answers
Answer:
60 grams
Explanation:
What was the key element that caused Venus and Earth to have different environments?
a.) the way carbon is stored
b.) the presence of humans
c.) water and the oceans
d.) how close they are to the sun
Answers
Option D because the temperatures there are like 800 degrees Fahrenheit which means it is enough o melt lead so that's the key element that caused Venus and earth to have different environments because energy is key to life.
If you use the same force to push a motorcycle as you would to push a bike, which one will have more acceleration and why? Explain using Newton’s Second Law
Answers
Answer:
the bike would because it has less mass.
Explanation:
im learning newtons laws in class right now so that should be right
After water is heated up, its thermal enrgy becomes what energy?
Answers
After water is heated up, its thermal energy becomes kinetic energy. Kinetic energy is the energy of motion, and when water is heated, the energy of the heat causes the molecules in the water to move faster. This increase in movement results in an increase in kinetic energy.
Heat is a form of energy that is transmitted between two objects or systems that are at different temperatures. When heat is added to a substance, such as water, it increases the kinetic energy of the molecules in the substance, causing them to move faster and resulting in an increase in temperature. The thermal energy of the water is converted into kinetic energy as the molecules move faster and the water becomes hotter.
It is important to note that the transfer of heat between objects or systems is governed by the laws of thermodynamics, which dictate how energy can be transformed and exchanged.
Hope this helps
What two gases in the atmosphere do animals and plants need to breathe and grow?
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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.
How does the sport curling relate to Newton’s Second Law of Motion?
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Curling is a sport in which players slide stones across a distance of ice toward a target area. The purpose is to accumulate the loftiest score for a game by making monuments rest closest to the center of the target at the end of each side. There are two brigades. Each platoon is trying to keep the other platoon's monuments down from the target by knocking their monuments out of the way.
Newton's Second Law " The acceleration of an object is directly commensurable to the net force acting on it and is equally commensurable to its mass. The direction of the acceleration is in the same direction as the net force acting on an object." This relates to the formula F = ma. The mass of the determinedness monuments in curling is 38 to 44 pounds or 17.3 to 20 kg. The thing of the sweepers is to control the acceleration of the gravestone by reducing disunion on the ice, which affects the force with which the gravestone is suitable to impact the other monuments.
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Second law-
Newtons second law occurs during curling when the delivery man, such as Glenn Howard, applies force to the stone pushing down the lane to the target while friction pulls it back the other way to a slow stop. The mass of the stone is 40lbs and the net force of everything on item will give you its slowly decreasing acceleration. Otherwise known as, F=mA.
Third law-
This law can be exerted in the sport of curling when the force behind a stone being delivered is transferred into another stone that is at rest, where the energy and force of one moving object is transferred to another. This almost completely stops the original stone, and gives some speed to the stone(s) it collides with.
schematic of curling stone Formula for curling-
F=mA
Earth's atmosphere is composed of
A.
iron, oxygen, and silicon.
B.
nitrogen, oxygen, and trace amounts of other gases.
C.
water, liquid oxygen, and trace amounts of other liquids.
D.
carbon dioxide, ozone, and magnesium.
Answers
Answer: B
Explanation:
:)
Help
The way living things are organized can be represented on a chart. A portion of the organization chart is shown below:
A box labeled Cells has an arrow pointing right towards another box labeled X. The box labeled X has an arrow pointing right towards another box labeled Organs.
What best represents X?
Atoms
Molecules
Organisms
Tissues
Answers
Answer:
tissues
Explanation:
its cell, tissue, organ, organ system and organism.
Answer:
Explanation:
C
How is the frequency of a wave measured?
a. the number of complete back and forth vibrations of a particle of the object per unit of time
b. how loud the sound is
c. how many animals can hear the sound
d. how high do the sound waves go
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help me pls i need the answer
Answers
Discuss one component of your school's recycling system that could be automated and predict the economic impact.
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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).
This is a science question
Answers
The air currents across the continents would determine the distribution of the air.
What are air currents?Air currents across the continents are primarily driven by temperature differences and the rotation of the Earth. The warm air near the equator rises and flows towards the poles, while the cooler air near the poles sinks and flows towards the equator.
This creates large-scale circulation patterns known as Hadley cells, Ferrell cells, and Polar cells. These cells are responsible for the trade winds, westerlies, and easterlies, respectively. Additionally, there are also local winds caused by differences in terrain, such as sea breezes and valley breezes.
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Did you notice that you could use the magnet to get the paper clip to move without
touching it?How was this similar to the floating plant?A change in motion can only happen when a force is acting on an object.What force was acting on the paper clip?Using the paper clip and the magnet as an example, make a claim how magnets can make an object move without touching the object.
Answers
Yes, I noticed that a magnet could be used to move the paper clip without touching it.
It is similar to the floating plant because both processes involve a force acting on an object without having a direct physical contact.
The force acting on the paper clip is described as the magnetic force,
The claim can be made that magnets could move an object without physical contact by using the magnetic force to exert a force on the object.
What is magnetic force?A magnetic field is described as a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.
In this case , the magnetic force arose due to the interaction between the magnetic fields of the magnet and the paper clip.
The magnet has a magnetic field around it, which exerts a force on any nearby magnetic material, such as the paper clip.
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Answer:
Yes, I noticed that a magnet could be used to move the paper clip without touching it.
It is similar to the floating plant because both processes involve a force acting on an object without having a direct physical contact.
The force acting on the paper clip is described as the magnetic force,
The claim can be made that magnets could move an object without physical contact by using the magnetic force to exert a force on the object
Explanation:
Can someone please help? Thanks! The answer that I have marked is incorrect, im making corrections
Answers
Answer: It is D.
Explanation:
The compass needle pointed in the direction of the current's magnetic field.
HELP WITH THIS Q PLEASE?
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Answer:
specific heat capacity = heat transferred /change in temperature
=2.11 •10^4/6.8-98
=0.02 • 10^4
plz hurry How fast can work be done by a 7 horsepower engine?
Answers
Answer:
It will go about 45-50 mph.
Explanation:
Depending on what you are hauling.
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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Pls help me all dew in 5 minutes!
Answers
Answer:
1. The field of biology concerned with the relationships between species and their physical environments.
2. Abiotic components are non-living chemical and physical factors in the environment that influence ecosystems in ecology and biology. The term "biotic" refers to a living part of an ecosystem, such as plants and animals.
3. Since photosynthesis is the primary source of oxygen in the atmosphere, it is vital to living organisms. Photosynthesis is the process by which green plants and trees produce food from sunlight, carbon dioxide, and water in the atmosphere: it is their primary source of energy.
4. Decomposers break down dead plants and animals and return nutrients to the soil. Carnivores get their nutrition by eating other species. Herbivores obtain their energy from the plants they consume. Plant and animal forms of nutrition are used by omnivores.
5. Energy is required for all living organisms to develop and reproduce, sustain their structures, and react to their surroundings. Metabolism is a series of life-sustaining chemical processes that enable organisms to convert chemical energy stored in molecules into energy for cellular processes.
6. Organisms compete for resources such as air, water, food, and space in order to live. In areas where these are sufficient, organisms coexist peacefully, and in areas where resources are plentiful, the ecosystem boasts a diverse range of species (diversity).
7. The word "niche" is used in ecology to describe the role that an organism plays in a group. The physical and environmental conditions that a species needs (such as temperature or terrain) as well as the relationships it has with other species make up a species' niche (like predation or competition).
8. Prey animals are species that serve as food for predatory animals. Many predators could end up as food for larger predators. The top predator is a predator species that does not prey on other animals.
Hope this helps
this is the first page
There is no Science section so I'm going to as the question here.
In science, scale is the relationship between a...
Answers
Answer:
Generally, in science scale is used to describe the size or volume of something.
Explanation:
I'm not sure what science you're talking about but in chemistry, scale the range in mass or volume of a chemical reaction.
Also there isn't a 'science section' but there are separate sections for different types of sciences like chem and bio.
Which phrase best describes a gravitational force?
A. a force that spins objects
B. a force that pulls objects toward each other
C. a force that can make objects both attract and repel each other
D. a force that eats only when two objects are in contact with each other
Answers
Answer:
I'm pretty sure it should be B
Explanation:
When you think of gravity, it pulls objects towards the ground by force. So, gravitational force should be pulling objects towards each other. Please let me know if this isn't right! I hope that helps! ^^
The phrase that describes a gravitational force is a force that pulls objects toward each other. Thus, option B is correct.
What is the Gravitational force?Gravitational force is defined as the force that attracts each other when the object has mass. Gravitational force is directly proportional to the product of masses and inversely proportional to the square of the distance between them.
The force, F ∝ m₁×m₂ / r², where F = G ( m₁×m₂ / r²). G is the gravitational constant and is equal to 6.67×10⁻¹¹ N.m²/kg². m₁ and m₂ are the masses of two objects and r is the distance between two objects.
This force is derived by Newton and it is called Newton's law of gravitation. This law is called Universal law as it is applicable to all the objects having masses in the Universe. Hence, the unit of force is Newton(N).
Thus, the gravitational force is a force that pulls objects toward each other. Hence, option B is correct.
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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.
How do you think the weather and climate might change in the area around Mt. Everest?
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Answer:
It does change if the weather is bad then very soon the climate will turn bad when the climate is unfavourable then the sourrounding will be affected. For example if the area around the Mt. Everest is Hot & Humind the ice would start melting & it would lead to way more issues.
List an example of matter in each of the three states.
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The example of matter in the three states is brick in solid state, water in liquid state and oxygen gas in gaseous state.
1. Solid: A brick is a solid object that maintains a fixed shape and volume.
2. Liquid: A glass of water is a liquid that conforms to the shape of its container but maintains a definite volume.
3. Gas: Oxygen gas in the atmosphere is a gas that does not have a fixed shape or volume, filling the available space.
The three states of matter are solid, liquid, and gas. Solids have a fixed shape and volume, such as an ice cube. Liquids have a definite volume but take the shape of their container, like water. Gases have neither a fixed shape nor volume and fill the entire space available to them, such as the air we breathe.
In summary, the states of matter describe the physical properties of substances based on the arrangement and movement of their particles, with solids having a fixed shape, liquids taking the shape of their container, and gases being free-flowing and filling all available space.
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Solid: An object that keeps a constant shape and volume is a brick.
Thus, Liquid: A glass of water is a liquid that keeps a consistent volume while taking on the shape of its container. Gas: Oxygen gas fills the available space in the atmosphere and does not have a defined shape or volume.
Gas, liquid, and solid matter can exist in any combination. Solids, like an ice cube, have a set shape and volume.
Like water, liquids have a set capacity but adopt the shape of their container. Gases, like the air we breathe, have neither a set shape nor volume and fill all available space.
Thus, Solid: An object that keeps a constant shape and volume is a brick.
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How many total atoms in the chemical formula CaCO2?
A.2
B.3
C.4
D.5
E.6
Answers
Explanation:
Calcium carbonate is a molecule that contains one atom of calcium, one atom of carbon, and three atoms of oxygen.
A bowling ball
travels at 2.0 m/s. It has 16 J of kinetic energy. What is the mass of the bowling ball in kilograms?
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Answer:
E=mv2/2 use a relationship
Answer:
8.0 kg
Explanation:
Please complete this in 3-5 sentences.
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Answer:
Magnetic forces are stronger closer to magnets. The Wednesday launch stored more potential energy, and launched the spacecraft at a faster speed because the stronger magnetic field closer to the magnet resulted in a greater increase in potential energy.
<3 appreciate brainliest
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
Please help will give brainiest if right to best answer:
Scientists have discovered a new planet. The planet is in a solar system whose star is similar in size to the sun and is about as far from the star as Venus is from the sun. The planet is similar in size to Earth, and its atmosphere is similar in thickness to Earth’s atmosphere. The atmosphere is composed almost entirely of carbon dioxide and methane.
In three to five sentences, make a hypothesis about the temperature on the planet’s surface. Explain your answer using information about the planet’s location and atmosphere.
how does a thick methane and carbon dioxide filled atoposeshere effect the temp. It makes it hot right since it abosorbes the suns heat but doesn't let it go well?
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Answer:
My hypothesis about the planet's temperature would be that it is hot. the reason i say this is because Venus is the second planet from the sun so it should fairly hot. Also if the atmosphere is as thick as earth's then it should get hot fast around the planet as well.
Explanation:
List at least 3 ways for you to represent your data graphically
Answers
2. Bar graph
3. line graph
hope this helps
Pie graph
Line graph
what is liquidity preferences?
Answers
non-liquid assets such as government bonds.