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Related Questions
When Deshawn returned to his experiment, he observed these results. Six bottles labeled from 1 to 6 with their opening holes covered by balloons. Balloons on second and fourth bottles are inflated. Part A Describe what you see in the results. Space used Part B Did your predictions match your results? Explain why or why not.
Answers
Answer:
Vinegar and baking soda.
Explanation:
That's all I got.. i dunno the full question so like-
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:
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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
the density of the suns core is about 160 g/cm3. the density of earths core is about 13.0 g/cm3. about how many times denser it the suns core than earths?
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Answer:
The sun's core is 12.3 times denser than Earth's core.
Explanation:
A speed skater goes around a turn with a 25 m radius. The skater has a velocity of 15 m/s and experiences a centripetal force of 720 N. What is the mass of the skater? (10 points – you must show your work
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Answer:
Explanation:
below i solved :)
Answer: 80kg
Explanation:
help i give brainilest
Which is the function of the exoskeleton in animals? (2 points)
a. Produces the sperm used in reproduction
b. Protects against different weather
Protects against their environment's (this answer is incorrect so don't choose it stoopid)
d. Works with muscles to allow movement
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Answer:
D
Explanation:
The Exoskeleton allows animals to move alot more freely.
When you drop something, first of all it accelerates.
The faster it falls, the bigger the force of ______ that acts on it.
choose from the list to complete the sentence:
friction gravity air pressure
note: apparently the answer is friction but it doesn't make sense to me so please explain.
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The faster an object is going, the more resistance there will be. An example of this would be if you're running the faster you run, the more air is going against you.
I hope this helps!
True or False
Babies have around 100 more bones than adults.
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Answer:
I would say it's true
Explanation:
when u get older we have less bones
Expiation
babies have more flexible cartilage
How does the agricultural activity most likely affect the surface water of the area?
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Answer:
Agriculture has been the cause of significant modification of landscapes throughout the world. Tillage of land changes the infiltration and runoff characteristics of the land surface, which affects recharge to ground water, delivery of water and sediment to surface-water bodies, and evapotranspiration.
Explanation:
Summarize what you learned this week about the electromagnetic spectrum
HINT: What is it? What does it organize? How do we use these EM waves in our lives?
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Answer:
I only really know the "How do we use these EM waves in our lives?" part srry
Explanation:
EM waves are used to make sure you cellphone, radio, TV, and etc. have service/ connection.
Radio waves
Microwaves
Infrared
Visible light
Ultraviolet
X-ray
Gamma ray
We use these everyday in our life however they also have dangers.
Radio waves - their long wavelength allows them to help with communication
Danger - exposure to a lot of radio waves can cause cancer or leukaemia
Microwaves - used for heating up food and transferring heat to the food.
Dangers - exposure can cause cancers and other diseases.
Infrared - can be used for remote controls and security cameras.
Danger - can cause damage to the cornea in your eye
Visible light - used for photography and optical fibres.
Danger - intense sources can cause permanent or temporary damage to the eyesight.
Ultraviolet - can be used to sterilise food and sterilise surgical equipment.
Danger - can cause skin damage and may lead to a cancer.
X-rays - used to see the internal structure of tissues and bones.
Dangers - can lead to mutations and May damage the cells
Gamma- can be used to sterilise food and surgical equipment and kill microorganisms and other bacteria.
Dangers - May reach your cells and cause cancer and cell mutations which could result in mutations.
What force is acting on the rainwater in the model?
the model shows water flowing down from the highest point to the lowest.
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What are the positive and negative effects of the mountain-climbing trade on the local environment and economy? 3-5 sentences, please thx
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Animals exhale _____.
oxygen
glucose
carbon
carbon dioxide
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Answer:
carbon dioxide
Explanation:
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.
(you can just say a color)
Answers
Answer:
I think its red
Explanation:
divide the distance 8000 by the hours 10 to get 800
Answer:
Red.
Explanation:
If you divide the distance by the time, you will discover that the airplane traveled 800 miles per hour.
Pls mark Brainliest with the crown.
Calculate the change in the kinetic energy (KE) of the bottle when the mass is increased. Use the formula
KE = one half.mv2, where m is the mass and v is the speed (velocity). Assume that the speed of the soda bottle falling from a height of
0.8 m will be 4 m/s, and use this speed for each calculation.
Record your calculations in Table A of your Student Guide.
When the mass of the bottle is 0.125 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.250 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.375 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.500 kg, the KE is
kg m2/s2.
Answers
Answer:
The answers are the options 1, 2, 3, and 4
Explanation:
If you have any questions ask me please! :)
The kinetic Energy of the bottle falling from a height of 0.8m for different masses of (0.125,0.250,0.375,0.500)kg is (1,2,3,4) kgm*2/s*2 respectively.
Let's calculate the kinetic energy for different masses having a velocity of 4m/s in each case,
Using Formula:
K.E=\(1/2mv^{2}\)
When the mass of the bottle is 0.125 kg, the Kinetic Energy is
K.E=\(1/2(0.125)(4)^{2}\)
K.E=\(1/2(0.125)(16)\)
K.E=1/2(2)
K.E=1
When the mass of the bottle is 0.250 kg, the Kinetic Energy is
K.E=\(1/2(0.250)(4)^{2}\)
K.E=1/2(0.125)(16)
K.E=1/2(4)
K.E=2
When the mass of the bottle is 0.125 kg, the Kinetic Energy is
K.E=\(1/2(0.375)(4)^{2}\)
K.E=1/2(0.375)(16)
K.E=1/2(6)
K.E=3
When the mass of the bottle is 0.500 kg, the Kinetic Energy is
K.E=\(1/2(0.500)(4)^{2}\)
K.E=1/2(0.500)(16)
K.E=1/2(8)
K.E=4
Now we can calculate the change in kinetic energy (ΔKE):
ΔKE = KE(final) - KE(initial)
= 4 kg m*2/s*2 - 1 kg m*2/s*2
= 3 kg m*2/s*2
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How much is the mass of aluminum with a volume of 1 m3 less than the mass of lead of the same volume?
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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
In this activity, you modeled the Sun–Earth–Moon system. If you removed one object from this system model, would the model still explain the changes to the Moon’s appearance?
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The correct answer is NO because the moon appearance is relatively base on the positioning of Sun - Earth - Moon
What is the nature of Moon ?A moon is an opaque object. It does not give or illuminate light on its own, It reflects light from from the sun to the earth. The appearances of moon are;
waxing crescentwaxing gibbouswaning crescentwaning gibbousIn this activity, if you modeled the Sun–Earth–Moon system and you remove one object from this system model, would the model still explain the changes to the Moon’s appearance?
The answer is capital NO.
The reason is simply because the moon appearance is relatively base on the positioning of Sun - Earth - Moon relationship. That is, the moon appearances of waxing crescent, waxing gibbous, waning crescent and waning gibbous, all depend on the position of the Sun, Moon and the earth.
Therefore, If you removed one object from this system model, the model cannot explain the changes to the Moon’s appearance again.
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what is the answer i need answers now
Answers
Answer:
listening ,communication ,resolution
Explanation:
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
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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 :)
Help me please U-U..................................................
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Answer:
1. observation
2. (i think that sliced cheese...) hypothesis
3. results
4. (i keep four separate sets of cheese...) experiment
5. problem
6. (i was right: touching the...) conclusion
7. inference
Explanation:
yeah :)
Explanation:
write 20 physical Quantities with S.I unit and formula
100 POINTS AND BRAINLIEST NO CAP IF YOU WRITE THIS CORRECTLY AND DECENTLY IF YOU HAVE A QUESTION PUT IT IN THE COMMENTS NOT AN ANSWER PLS
You have learned that power is the speed, or rate of doing work. In this report you will learn more about James Watt or horsepower.
Here is your goal for this assignment:
Complete an activity on power
Complete one of these activities:
1. Research the life of James Watt. Report in about fifty words some of the important events in Watt's life leading up to the watt being named in his honor.
2. Conduct a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer. Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
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Power is the rate at which work is done. James Watt is a famous engineer and inventor who developed the steam engine.
Who is James Watt?He improved the efficiency of the engine by adding a separate condenser, which reduced the amount of fuel needed. In his honor, the watt was named after him as the unit of power.
For the activity, here is a suggestion; conducting a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer.
Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
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PLEASE HELP ASAP
How are force and velocity related? Give evidence to support your answer.
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Light with a wavelength of 5.0 · 10-7 m strikes a surface that requires 2.0 ev to eject an electron. Calculate the energy, in joules, of one incident photon at this frequency.
_____ joules
4.0 x 10 -19
9.9 x 10 -32
1.1 x 10 -48
4.0 x 10 -49
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Answer:
They are: -14 joules.
And the other answer is: 9.9 x 10-32.
Explanation:
Since to convert to joules it is necessary to add 4 with 9 decimal places to the first number and to the second number 25 decimal places are added.
--- Since 5.0 plus 4 and 9 decimals is: 9.9
--- As 10 - 7 plus 25 decimals: 10 - 32
--- And 9.9 in joules is 8.0 x 10 - 32 = - 22 and 8.0 x -22 is - 14. So they are - 14 joules.
--- And the other answer is: 9.9 x 10- 32
I hope I have helped.
state how you would calculate the moment about a pivot. Give the equation and appropriate units
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Answer:
M = F × d
M = F × dM = moment in newton metres (Nm)M = F × dM = moment in newton metres (Nm)F = force in newtons (N)M = F × dM = moment in newton metres (Nm)F = force in newtons (N)d = perpendicular distance of the force to the pivot in metres (m)I hope it will be helpful for you.
Answer:
moment=force x perp. distance from the pivot
unit= Nm
BRAINLIEST
Now that you have done
some research, write a
hypothesis based on the
relationship between zinnias
and the sun. Write it as an
“If ________, then__________”
statement.
Answers
Answer:
If zinnias are exposed to direct sunlight for a sufficient amount of time each day, then they will grow and bloom more successfully compared to those that do not receive adequate sunlight.
Hope my answer helps you ✌️
Mark BRAINLIEST
Compare and contrast acids and bases. Tell what happens when they are mixed together. (with reason)
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Answer#2:
When mixed, acids and bases neutralize one another and produce salts, substances with a salty taste and none of the characteristic properties of either acids or bases.
Explanation:
Answer#1
Acids give off H+ (Hydrogen) ions in water; bases give off OH- (Hydroxide) ions in water. Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion; but they may have other tastes depending on the other part of the molecule. ... Acids have a pH less than 7 ; Bases have a pH greater than 7.
What are the four forms of matter that waves can travel through?
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Answer:
It can be a solid, liquid, gas,plasma,etc. When waves travel through a medium, the particles of the medium are not carried along with the wave.For example, water waves have to travel in water. Sound waves need a solid, a liquid or a gas to travel in.
The four states of matter are gas, liquid, solid and plasma. Waves can travel through all these states of matter but by different transfer modes.
What are waves?Waves are energy transfer through matter. There are two types of waves namely, mechanical waves and electromagnetic waves. Mechanical waves can travel through a medium only whereas, electromagnetic waves can travel through vacuum also.
The four states of matter are liquid , gas , solid and plasma. All of these states are allotting waves to pass through. Through solids the energy is transferred by conduction. and in gases and liquids, convection is the mode for energy transfer.
Only electromagnetic waves can pass through plasma state of matter. When the frequency of the waves is greater than the plasma frequency, then electromagnetic waves can pass through it.
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Complete this sentence. If the mass of object A is __________ than object B, then the weight of object A will be _______________ the weight of object B.
greater, heavier than
less, heavier than
greater, the same as
less, the same as
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Answer:
Complete this sentence. If the mass of object A is greater than object B, then the weight of object A will be heavier the weight of object B.
Explanation:
If the mass of Object A is more/greater than object B then it would be "heavier"
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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A book on a table presses downward with a force equal to the upward force exerted by the table. This is an example of Newton's ___ law of motion.
Answers
Answer: Newton's 3rd law of motion.
Explanation: Because the book is pressing with an equal as the table it is the 3r law. Newton's 3rd law of motion states that for every action there is an equal and opposite reaction.
A book on a table presses downward with a force equal to the upward force exerted by the table. This is an example of Newton's third law of motion.
Newton's 3rd law states for every action, there is an equal and opposite reaction.