Answers
Answer:
The last question is one Liter (sorry that is the only question I know for now).
Explanation:
Mainly because 1000cm is the same volume and area for an answer from this equation which is the block of wood.
Sorry that that was the only answer I knew :(
I'll see what else I can find and I'll edit this question later and write the rest of the answers-or any of them that I will know later on :)
I hope this answer helps :)
-EarthGirl
Related Questions
1. Identify three things that are in motion and describe how you know they are in motion.
Answers
Answer:
Actually, There are 3 equation of motion
v=u+at
vsquare= usquare+ 2as
s=it+1/2atsquare
Some rules of motion are
When object starts from rest it's initial velocity is zero.
When object comes at rest It's final velocity is zero.
If a body moves with uniform velocity it's acceleration is zero.
Need help QUICK!!
What is the difference between force and work ?
Thanks for answering! :)
Answers
Answer:
Force is defined as the rate of change of momentum (momentum is mass multiplied by velocity) with respect to time. Work is the product of displacement and the component of force in the direction of displacement. If work is done, then the kinetic energy of an object changes.
Explanation:
That is the difference between force and work
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.
Match the Vocabulary terms with their definitions.
Answers
Answer:
1. convert=cause to change in form, character, or function
2. energy conversion=the process through which energy is changed into forms that are useful to humans
3. energy transformation=energy is changed from one form to another
4. energy can neither be created nor destroyed, it can only change forms. the amount of energy stays the same. energy in= energy out
Seymour's toy cart was sitting flat on the floor. Seymour started throwing his toys into it.
The cart started to roll away from Seymour.
What made the cart start to move?
Answers
Answer:
the answer is A
Explanation:
The cart is moving because of the force from the toys hitting it
Apparent brightness depends on which two properties?
A. Distance and temperature
B. Luminosity and distance
C. Luminosity and temperature
D. Luminosity and size
Answers
Answer:
I believe it is luminosity and distance
Explanation:
So B
At a particular Luminosity, the more distant an object is, the fainter its apparent brightness becomes as the square of the distance
So the correct ans is B
__________ properties explain how matter changes its identity to form a new substance.
phase
chemical
physical
reaction
Answers
Answer:
chemical properties explain how matter changes its identity to form a new substance.
The chemical properties explain how matter changes its identity to form a new substance. The correct option is B.
What is chemical property?A chemical property is any property of a material that emerges during or after a chemical reaction; that is, any quality that can only be established by changing a substance's chemical identity.
A chemical property is a property of a specific substance that can be observed during a chemical reaction.
Some of the most important chemical properties are flammability, toxicity, heat of combustion, pH value, radioactive decay rate, and chemical stability.
The chemical properties of matter describe how matter changes its identity to form a new substance.
The property of a substance that can be observed or measured when the substance undergoes a chemical change is referred to as its chemical property. A chemical reaction can be used to observe chemical properties.
Thus, the correct option is B.
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Hunter pushed a couch across the room. He did 800 J of work in 20 seconds.
The couch weighed 500 N. How much power did he have?
A. 16,000 W
B. 1.6W
C. 800 W
D. 40 W
Answers
Answer:
\(the \: answer \: for \: this \: question \: is \: d.40w\)
Explanation:
Greetings !Given values Work(W)= 800Jtime(t) = 20 secondWeight = 500Nrequired value power(P) = ?Solution:
Firstly, recall the work-power equation
work=power*timew=p*tsubstitute known values to the equation
(800)=P*(20)Solve, for P (power)
P=40.0wHunter had a power of 40 W while pushing the couch across the room. The correct answer is D. The correct answer is 40W.
Given:
Work (W) = 800 J
Time (t) = 20 seconds
Power is the rate at which work is done or the rate at which energy is transferred. It is calculated using the formula:
Power (P) = Work (W) ÷ Time (t)
Let's calculate the power:
Power (P) = 800 ÷ 20
Power (P) = 40 W
Therefore, Hunter had a power of 40 W while pushing the couch across the room. The correct answer is D.
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What object used for balance and pushing in skiing?
Answers
Answer:
I believe the answer is the poles you have while skiing, they both help with pushing & balance too.
Request: If this answer did truly help you(I hope), please give me brainliest.
Someone places a spoon in hot water. The spoon remains in the water till the water becomes room temperature, what temperature is the spoon handle?
Answers
Answer: Room temperature
Explanation: it makes sense (sorry if its wrong)
You will need a magnifying glass and a small piece of scrap paper for this demonstration.
a. Go outside on a sunny day and put the piece of paper on a patch of asphalt, concrete, or a large flat rock. Make sure there is no other combustible material or debris in the vicinity.
b. Hold the magnifying glass so it is close to the paper, with rays of sunlight shining through it. Move the magnifying glass side to side and close or away from the paper until the most concentrated ray of light is shining on the paper. This is the focal point for that magnifying glass.
c. Measure the distance between the focal point and magnifying glass. This is the focal length for that magnifying glass. (Be careful; if you hold the magnifying glass in that place for long enough, the paper will catch fire. Do not ever do this on your skin or clothing, as it can cause serious burns.)
d. Now take the magnifying glass inside and use it to look at the words in a book. What is the focal length now?
Answers
Answer: you did not ask a question baka
Explanation:
the question what is it
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:
Explain how scientists are able to estimate the age of the solar system.
They use radioactive dating with samples of meteorites.
They use relative dating with the layers of the moon's surface.
They use radioactive dating with samples of moon rock.
They use relative dating with the layers of the Earth's surface.
Answers
Scientists are able to estimate the age of the solar system by the use of radioactive dating with samples of meteorites. Hence, option A is correct.
What is Radioactive Dating?Radioactive isotopes are used in radioactive dating to determine the age of rocks and minerals. For igneous and metamorphic rocks, which cannot be dated using the stratigraphic correlation approach for sedimentary rocks, this method is helpful.
The atomic nucleus becomes unstable and releases bits and pieces during radioactive decay, which is a natural process. As radioactive particles, they are discharged (there are many types). The atom becomes stable when the number of protons and neutrons in the nucleus is balanced as a result of this decay process.
To try and determine the age of the Solar System, we can look at the oldest meteorites or those that exhibit the most severe lead ratios; if we do so, we find that the age is approximately 4.568 billion years. Rocks from the Moon, which have not experienced the same geological processes as rocks from Earth, are available for examination.
Hence, it concludes that option A is correct.
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1. Click Play ( ). You are looking down on the North Pole of Earth. From this perspective, do Earth and Venus revolve around the Sun in a clockwise or counterclockwise direction?
Answers
Answer:
Counterclockwise
Explanation:
Earth and Venus revolve around the Sun in a counterclockwise direction.
The planets of our solar system orbit the Sun in a counterclockwise direction (when viewed from above the Sun's north pole) because of the way our solar system formed.The influence of other Solar System bodies, Earth's orbit is an ellipse with the Earth-Sun barycenter as one focus and a current eccentricity of 0.0167. Since this value is close to zero, the center of the orbit is relatively close to the center of the Sun (relative to the size of the orbit).Learn more:
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Help me please- T^T. just put like 1 for the first and what fields go with it
Answers
Objects with iron or steel : magnetic
Objects with mass: gravitational
Would appreciate brainliest <33
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 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 :)
How much is the mass of aluminum with a volume of 1 m3 less than the mass of lead of the same volume?
Answers
Answer: the masses:mA=mFe or ρA1VA1=ρFeVFethen use the volume of a sphere. By substitution. The answer is (2.70∗103kg/m37.86∗103kg/m3)(2.00cm)3=23.3cm3
Explanation: you must go from left to right when solving substitutuing the first side then dividing
HOW ARE SOUND AND LIGHT WAVES ALIKE AND DIFFERENT?
short answer please
Answers
Answer:
Light waves are electromagnetic waves while sound waves are mechanical waves.
sound waves cant travel in vaccums while light wave can, hence why ppl say u can scream in space and ppl wont hear u.
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.
Acceleration - Opening the parachute
Answers
Erin is keeping a science journal. She wrote the following paragraph that explains how light travels through different mediums. But she’s made one mistake. Which sentence in Erin’s journal is incorrect?
A ray of light passes through the air and enters the water inside a metal container. The light ray bends as it crosses the boundary between air and water. Once it hits the bottom of the container, the ray gets reflected. The reflected ray passes back through the water and enters the air without bending. In this example, the ray of light is both reflected and refracted.
Answers
Answer: The first part I think
Explanation:
Im not too sure on this one
Why do you lose balance while standing on a bus often. Need a expert to answer this. Must choose if 1st 2nd or 3rd Newton Law. And explain Please help.
Answers
Answer:
The loss of balance while standing on a bus often is due:
The third Newton law.Explanation:
The third Newton law from Latin says: "Action is always opposed an equal reaction: or the two bodies on each other are always equal, and in opposite directions," which means that when a force is exercised in a direction by a body, the other body in the interaction exercises a force in the other direction. In the case of the person on the bus, when the bus makes a force forward, your body makes a force in the other direction (back), in a similar case, when the bus stops, its force in directed to the back, in that time your body make a force forward, in each case your body can lose balance because your center of gravity is directed in the same direction in which the opposite force to that of the bus moves.
If a 1,500 kg car and a 4,000 kg truck were moving at the same speed down a steep hill, what statement is false?
A: The truck will have greater kinetic energy and be more difficult to stop.
B: The car has less mass, and therefore less kinetic energy, when compared to the truck.
C: Both vehicles would have their greatest kinetic energy as they reached the base of the hill.
D: The car's potential energy will be greatest when at its highest speed.
Answers
Answer:a
Explanation:because if you have a bigger or heavier truck I can be harder to stop then a car
The car kinetic energy not potential energy is greatest when at its highest speed.
Kinetic Energy:
It is the energy of the object which is due to the motion of object. The formula of kinetic energy is
\(\bold {KE = \dfrac 1{2} m v^2}\\\)
Where,
m - mass
v - velocity
The kinetic energy of the object is directly proportional to the mass of the object and square of the velocity of the object.
So, A, B and C are correct statement.
Therefore, the car kinetic energy not potential energy is greatest when at its highest speed.
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did you guys know that Elastic potential energy is due to an object’s shape? It results when an elastic object is stretched or compressed. The more it is stretched or compressed, the greater its elastic potential energy is.
Answers
Answer:
i knew since ive been in8th grade
Explanation:
n/a
Two identical negative charges exert a repellent force of 150 N on each other when they are 40 cm apart. that is the magnitude of each negative charge?
a. 2.7 nC
b. 51.6 microC
c. 0.67 microC
d. 0.82 mC
Answers
A physics teacher performed a demonstration for a science class by pulling a crate across the floor and measuring the force with a spring scale. While she pulled, a student measured the acceleration of the crate with a handheld electronic device. The results of three trials are shown below. The teacher asked the class to calculate the acceleration of the crate based on the crate’s mass and the force she applied. What conclusion can be made about the difference between the CALCULATED acceleration and the ACTUAL acceleration that occurred in the trials?
Answers
Answer:
1. A 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at2 1.2 m/s, which force is closest to the net force acting on the vehicle?
-9,600 N
-1,300 N
-900 N
-94 N
Explanation: Awnser is 1,300
Describe 3 factors an engineer should take into consideration when choosing material for building the pipes in a pipeline
Gr. 8
Think it has something to do with Viscosity, Density, and Pressure but not sure what
Answers
Answer: 1. Material being transported 2. The temperature of the material being transported 3. How long the pipes will be there (lifespan)
Explanation: 1. - The pipe builder should consider the material being transported to choose the correct material of the pipes to use, so they last long and can hold the material.
2. - Similar to 1, the pipe builder should consider the temperature of the material to choose the correct material of the pipes to use, so the pipes don’t break and function properly.
3. - If the pipe builder uses a material that can hold the material, that’s great! If that material will last a short time, it would not work if the pipes were to be used for a long time.
The things you said before about viscosity, density, and pressure are also correct. The correct answers are mainly talking about factors of the material being used in the pipes.
hope this helped :)
Please help me with this science question.
What are meteor showers?
Answers
Answer: I think meteor showers are astroids falling into the earth.
(Hope this helps).
what is the answer i need answers now
Answers
Answer:
listening ,communication ,resolution
Explanation: