Physics Middle School

Ellen does an experiment by releasing a ball from a height of 1 m above each floor in a tall building. She records the time it takes the ball to reach the floor.

Which question is Ellen most likely investigating?

How does distance affect the gravitational force on objects?
How does distance affect the electromagnetic force on objects?
Does height affect the strong force acting on a moving ball?
Does height affect the weak force acting on a moving ball?

Answers

Answer 1

Answer:

The question that Ellen most likely investigating is "How does distance affect the gravitational force on objects?"

Explanation:

Answer 2

Answer is A because I got the question right

Related Questions

hen catching a football, your fingers should shape a

a W
b M
c Triangle
d Open circle

PLEASE ANSWER ASAP

Answers

Answer:

c.triangle

Explanation:

this is because I played football in be and the teacher told up it should be a triangle

your fingers should be in a triangle shape

How is energy connected? CORRECT ANSWER GETS BRAINILIEST!
a) Energy is connected through chemical bonds
b) Energy is not connected
c) energy is connected through light waves
d) Energy is connected as it constantly moves from one place to another

(Explanation is unnecessary, only answer! Thank you in advance!)

Answers

D) energy is connected as it constantly moves from one place to another

D is the correct answer

Isaac and Sakura are both doing a science experiment where they are measuring the temperature of a liquid over time. Graphs that represent each of their data are shown below.

A graph titled Isaac's Experiment has time (minutes) on the x-axis and Temperature (degrees Fahrenheit) on the y-axis. A line goes through points (0, 80) and (2, 70).

A graph titled Sakura's Experiment has time (minutes) on the x-axis and Temperature (degrees Fahrenheit) on the y-axis. A line goes through points (0, negative 80) and (8, 0).

Which statement is correct?
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is positive.
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is negative.
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is positive.
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is negative.In your own words, describe how matter is identified.

Answers

its c chile

Explanation:

Answer:

Explanation:

Image of page linked

Answers

One hydrogen and two nitrogen (H1N2)

One hydrogen two nitrogen (H1N2)

Now use the temperature change simulation to carry out your experiment. Record your data, as well as any necessary calculations, in the table. You can modify the table, if necessary, so it matches your experimental procedure.

Answers

Answer: Unable to answer.

Explanation: If you link the simulation, I can answer it for you.

Also unable to answer this is an odd question if you like the chart maybe I can help you.

The law of conservation of matter states that matter can be neither created nor destroyed. Your friend shows you the following chemical equation: The equation was CaCO3 →CaO+CO2
He says that because the oxygen atoms are split between two different molecules in the products, the equation does not support the law of conservation of matter. Is your friend right? Explain your answer. Draw a model showing the number of each type of atom in the reactants and products. Use your model to explain your answer.

PLEASE HELP

Answers

Yes, our friend is right, because there is no contradiction to the law of conservation of mass in the above equation. It just the mass of the product is equal to the mass of reactants.. and that is shown in the equation you have presented earlier

Answer:correct

Explanation:

help me pls i need the answer

Answers

The answer is position 3 because the water is dence and it won’t go that far

It’s either one or three

How can you make a sound louder?

adding more frequency

removing energy

removing frequency

adding more energy

Answers

Answer:

BY adding more energy

Explanation:

Because by adding energy it will cause the string/sound to vibrate more which can cause more air particles to more and longer making the sound louder.

Adding more energy the answer

Students have a small steel ball and a large steel ball, and they have a short ramp and a tall ramp.

The students want to find out if a ball's size affects how far it can roll. They also want to find out if the height of the ramp affects how far the ball can roll.
They do the following experiment: (second image)

The students finish conducting their tests and conclude that using a taller ramp and a larger ball will make the ball roll further. Is their conclusion based on a reliable experiment?

A.Yes, because they used the same color balls.

B.No. They did not do an additional test to compare the results using the short ramp.

C.No. The small ball should have been pushed with more force.

D.Yes, because they changed the height of the ramp.

Answers

I would say it’s “B” for the reason that the student did not experiment with a short ramp and large ball as well as a large ramp and a short ball. They have to do those experiments as well before drawing their conclusion.

Answer the larger ball will reach late.

Explanation:the smaller ball will reach before because it's density is low because of its small size and the small ball will reach before because it's lighter

List an example of matter in each of the three states.

Answers

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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Please help! It has to deal with Newton's 3rd law! 30 points! and if right brainliest!

Answers

Answer:

Newton's Third Law

His third law states that for every action (force) in nature there is an equal and opposite reaction

Explanation:

i think the answer is b :)

Black to move and capture a hanging piece . Select the best move

A) Nxg3
B) Bxg3
C) Qxg5

Answers

Answer: A

Explanation:The Pawn moves directly forward, never backward or to the side. Pawns capture a piece that is one square diagonally forward. Though Pawns normally cannot move diagonally, this is the only way they capture.

Based on the information provided, the best move to capture a hanging piece would be: A) Nxg3

What would be the best move to capture a hanging piece ?

Nxg3 would be the best move to capture a hanging piece.

This move involves sacrificing the knight to capture the hanging piece, which could be a bishop or pawn, depending on the position of pieces. After Nxg3, the opponent may capture the knight with different piece, but the player who made the move will have successfully captured the hanging piece.

However, it's important to note that the best move ultimately depends on the overall strategy of the player and the position of the other pieces on the board.

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What are all the parts of a microscope?

Answers

1.eve piece tube or body tube
2.nosepiece
3.objective lenses
4.stage clips
5.stage
6.diaphragm
7.illuminator
8.evepiece/ ocular lens
9. arm
10. coarse focus
11. fine focus
12.base

Answer:

Eyepiece Eyepiece tube Objective lenses Nose piece The Adjustment knobs StageApertureMicroscopic illuminator Condenser Diaphragm Condenser focus knob Abbe Condenser The rack stop

You left some papers on a picnic table in the park on a windy, sunny day. When you returned, the papers were scattered all over the park. What can you conclude about the flow of energy in this situation?

The heat energy from the sun was transformed to sound energy, which moved the papers.
The heat energy from the sun was transformed into kinetic energy, which moved the papers.
The mechanical energy in the wind was transferred to the papers, which caused the papers to move.
The mechanical energy in the wind was transferred to the table, which caused it to shake and move the papers.

Answers

3rd option is correct

Answer: Option c

Explanation: Wind has kinetic energy to move objects from their places. It is vastly used across the world for the production of electricity.

By turning the kinetic energy of moving air into electrical, the wind is used to generate power. Wind drives the rotor blades of contemporary wind turbines, which transform kinetic energy into rotational energy. A shaft transmits this rotational energy to the generator, which generates electrical energy. More than a century ago, the first wind turbines appeared. After the electric generator was developed in the 1830s, engineers began experimenting with harnessing wind power to create electricity. However, modern wind power is thought to have been invented in Denmark, where horizontal-axis wind turbines were built in 1891 and a 22.8-meter wind turbine started operating in 1897. Wind power generation occurred in the United Kingdom and the United States in 1887 and 1888.

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A magnifying glass uses a convex lens of focal length 5.25 cm. When it is held 5.00 cm in front of an object, what magnification does it create? pls help

Answers

It creates a abecedarian

Answer:

Explanation:

A car that brakes suddenly comes to a screeching halt. Is the sound energy produced in this conversion a useful form of energy? Yes or No------ Then explain why or why not. This is due tomorrow so please help!

Answers

Answer:

No, the sound produced by screeching brakes is not a useful form of energy, because it does not contribute to stopping the car.

Which choice best describes why a solution is called a special type of mixture?
A. The substances in a solution can only be separated through the method called filtration.
B. The substances in a solution are mixed equally throughout it and are unable to be easily separated like those in a regular mixture.
C. The substances in a solution are mixed unequally but they can still easily be separated just like those in a regular mixture.
D. The substances in a solution look as if they mixed equally but they always separate into layers when left sitting still a long time.
please hurry thank you!!!! worth 15 points

Answers

Answer:

Explanation:

In a solution, one part has to dissolve into the other.

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.

Carbon Dioxide for plants and Oxygen for animals

Oil stores ______ energy.
A Heat
B Chemical
C Mechanical
D Electrical
NO LINKS I WILL PERSONALLY SEND YOU USERNAME TO BRAINLY'S EMAIL ADDRESS!

Answers

Answer:

B. Chemical

Explanation:

The energy in fossil fuels (coal, oil, gas) is Chemical Potential Energy. Fossil fuels come from decayed living matter that has stored energy in its chemical bonds (bonds of atoms and molecules). Coal, petroleum, natural gas, and propane are examples of fossil fuels that store chemical energy.

The correct answer is b:))!!
Have a great day

In this longitudinal wave, label the arrow that shows the direction the wave travels with a T. Label the arrow that shows how the spring is disturbed with a D.
please help

Answers

The picture I added shows the answer.

Person above me correct

Please can someone help me need help with these 5 questions!! and QUICK!

I need it done REALLLLLYYYYY soon!! (more like now but-)
(20 points for the answer to all of them)

Answers

Answer:

10. dependent as a change has occurred which has affected something else which is measurable.

11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.

12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.

13. Dependent as the animal's and plants' survival is reliant on the environment.

14. Dependant as the plants require sunlight for photosynthies

Answer:

All are dependent

Explanation:

whats can shot up faster a small or a big parachute????

Answers

i think a small one would

If you use no parachute then you would fall faster, the size affects the speed of falling, large has more air it was go slow. So a small one would go faster

If a liquid is heated and the temperature at which it boils is measured, the _____ property is being measured.

molecular

atomic

chemical

physical

Answers

Answer: atomic think so

Explanation:

Answer:

Physical.

Explanation:

It is physical because atomic is dealing with something with the elements constructing the substance. Molecular is similar. Chemical is changing the chemical makeup of a substance. So through the process of elimination, it is physical.

How does the agricultural activity most likely affect the surface water of the area?

Answers

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:

Since people throw away things like trash and some oil and other polluting stuff it polluts the ocean

Determine the kinetic energy of a 10 Kg roller coaster car that is moving with a speed of 2m/s.

Answers

In this question all required information's are already provided. Based on these details the answer to the question can be easily determined. Let us now write down all the information's that are already given.

Mass of the roller coaster = 1000 kg

Velocity of the roller coaster = 20.0 m/s

We know the formula for finding the kinetic energy is

Kinetic energy = 0.5 * mass * (velocity) ^2

= 0.5 * 1000 * (20)^2

= 0.5 * 1000 * 400

= 200000 Joules

So the Kinetic energy of the roller coaster is 200000 joules.

i hope this helps you friend good luck on your quiz or lesson

Please someone help with all of these 3

Answers

Answer: Because they all share the same square root

Explanation:

h = 6.63 × 10−34 J.s = 4.136 × 10-15 eV.s

Answer:

A=12 B=36 C=1 D=36

Explanation:

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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Explain why it is difficult to remove lid from a preserving jar which was closed when the food was full of steam?

Answers

Answer:

As the contents cool, the pressure of the air left inside the jar falls and the metal on the lid pops downwards. The greater atmospheric pressure outside the jar keeps the metal button depressed and makes it more difficult to open the jar.

As it cools, the air in the space above the conserving contracts, forcing the safety button on the lid to drop. This forms a tight seal that makes the lid harder to remove. This is the seal that prevents the fear going off and is essential to give it a long shelf life.

A Tug Boat's engines can exert 10,000 N of Force to drag another ship 1 kilometer. How much work was done to drag the ship 1000 meters?

Answers

force = 10,000 N

distance= 1000 meters or 1 km

work done = Force * Distance

work done= 10000* 1000 = 10000000 Nm or 10000 kNm

10,000 N im 50% positive

why might parents allow their kids to opt out of gym class?

a. They think kids should take other subjects in school.

b. They think exercise in school is important.

c. They want their kids to learn teamwork in school.

d. They don’t want to pay for school equipment.

Answers

I think its A

i like your username btw

Answer:

I thinks d because some parents don't want to pay all the fees

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