a hollow tennis ball and a lead filled tennis ball are dropped off a tall building. which reaches the ground first, the hollow ball, or the lead filled ball

Answers

Answer 1
Lead filled ball because it is less affected by air resistance

Related Questions

To determine the density of an object, which set of instruments would be helpful?

Answers

triple beam balance and meterstick

The set of instruments that would be helpful to determine the density of an object are triple beams balance and meterstick

Triple beam balance refers to an instrument that can be used to measure the mass of different objects. It is called triple beam balance because it is made up of three beams.  

Further Explanation

Each of the beams has different weights and their size matches the gradations of the notched scale present on each of the beam. The size of the beams varies, the middle beam has the largest size, the far beam has a medium size and the font beam is the smallest size.

The basic parts of a triple beam include:

Weight pan: the object to be weight is placed on the weight panBase: the base is beneath the weight pan and can be set up to properly fit on the workbenchBeam: the beams can be used to get the level of precisionRiders: they are on top of the beams and indicates the mass (g) of an objectPointers: the pointer marks the mass of the object on the scaleZero adjustment knob: the knob are used to set the beam balance to zero marks before use

Also, meterstick can be helpful to determine the density of an object

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To determine the density of an object, which set of instruments would be helpful?  https://brainly.com/question/6286782To determine the density of an object, which set of instruments would be helpful? https://brainly.com/question/14239000

KEYWORDS:

densityobjectmeterstickpointersknobtriple beams balance

A (n) ______ is a material that transfers heat well

Answers

A (n) conductor is a material that transfers heat well

Hope that helped
A CONDUCTOR is the material

a driver of a car traveling at 15.0m/s applies the brakes, causing a uniform acceleration of -2.0m/s^2. how long does it take the car to accelerate to a final speed of 10.0m/s? how far has the car moved during the breaking period?

Answers

V=V₀+at
at=V-V₀
t=(V-V₀)/a
t=(10-15)/(-2)=2.5 s
S=V₀t+at²/2
S=15*2.5-2*(2.5)²/2=31.25 meters

2.5 s and 31.25 m

Explanation:

Initial speed of the driver, u = 15 m/s

Acceleration of the driver, [tex]a=-2\ m/s^2[/tex]

Final speed of the driver, v = 10 m/s

Let t is the time taken by the driver to accelerate to the final speed. Using first equation of kinematics as :

[tex]t=\dfrac{v-u}{a}[/tex]

[tex]t=\dfrac{10-15}{-2}[/tex]

t = 2.5 seconds

Let d is the distance the car moved during the breaking period. Using the third equation of kinematics as :

[tex]v^2-u^2=2ad[/tex]

[tex]d=\dfrac{v^2-u^2}{2a}[/tex]

[tex]d=\dfrac{(10)^2-(15)^2}{2\times (-2)}[/tex]

d = 31.25 meters

Hence, this is the required solution.

How do consumers sometimes interact with producers?

Answers

We use them to survive, such as for oxygen, food, and shelter. 

Explanation:

The food chain consists of autotrophs (producers) and heterotrophs (consumers). All animals and plants fall into these categories.

The autotrophs are the first stage of the food chain. They are mostly plants. They use the radiation from the sun to fulfill their energy needs. In doing this process the autotrophs release oxygen. The process is known as photosynthesis. The plants take in carbon dioxide in the atmosphere released by heterotrophs during respiration and the plants in turn release carbon dioxide. Also, autotrophs provide a food source for the heterotrophs.

Every producer and consumer interact in some way, completing food chain.

Charcteristics          Similarities               Differences

Mercury
Venus
Earth
Mars

List and briefly describe the characteristics (interior and surface) of each terrestrial planet in the Characteristics column.

Answers

All four planets: Mercury, Venus, Earth and Mars are inner planets or also referred as terrestrial planets. Those are the planets orbiting closest to the Sun.
Earth is the largest of the Inner Planets, with a diameter of 12,756 km and Mercury is the smallest with a diameter of 4,878 km (3,031 miles). They have solid surfaces and thin/no atmospheres. Mercury is one of the densest planets in the Solar System. Venus is the brightest object we see in the sky, has a thick toxic atmosphere and is the hottest planet. Earth is the only planet that has liquid water.Mars surface contains iron-rich materials and has the most interesting terrain: the surface is very old and filled with craters.

Scientists develop knowledge by making about the natural world that may lead to a scientific question

Answers

Hypothesis? 
There's my educated guess  

Answer:

Scientists develop knowledge by making observations about the natural world that may lead to a scientific question

Explanation:

Science has been able to change history and develop some elemental theories that explain how everything works by following some steps. These steps are known as the "scientific method", which can be described as a systmatic way of learning about the world and answering questions. The most basic step that allow scientists to develop questions about something is the observation, by observing things doubts will emerge. This will lead to the next step that is asking questions. In this way your research problem will be more accurate and therefore easier to study. The following steps are: form an hypotesis, make a prediction based on the hypotesis and test the prediction.

I need help with this physics question

Answers

It's impossible to describe WHERE a place is without mentioning ANOTHER place.

... Across the street from -- the bank.
... Next door to -- my house.
... 30 miles west of -- Chicago.
... Up above -- the tree.
... Two days ride out of -- Tulsa.
... Halfway home from -- school.
... Twice as far from Earth as -- the moon is.
... The first seat in -- the second row.
... Behind -- the dog's left ear.
... At the bottom of -- the pool.
... On the tip of -- my tongue.
... In the front seat of -- the car.
... I saw you in -- my dream.
... You're always on -- my mind.

The question is trying to get you to realize that to get from a reference point to a certain position, you have to know

How far
and
In what direction.

a boat is travelling at a velocity of 45m/s S. if the current of the river is moving at a velocity of 15m/s due east, what is the resultant velocity of the boat

Answers

vy = 10 m/s v2

y + v

2

x = v

2

ground

vx = 1.5 m/s (10)2 + (1.5)2 = v

2

ground

vground = 10.11 m/s

tan θ =

10

1.5

θ = 81.47

Answer:

Explanation:

31 m/s

23° north of east

Two examples of renewable energy resources

Answers

sunlight and wind because they never run out

what is a good hypothes is for this problem statement:Problem statement: Does changing the amount of water affect the time it takes water to boil?

Answers

1. Changing the amount of water will affect the time it takes to boil.
2. If you put a small amount of water on the stove, to boil, then the water will boil faster.
3. If you boil large amounts of water, then it will take longer for the water to reach boiling point.
Here's three you can use

Hypothesis:

Given the same air pressure and rate of heating, a greater quantity of water will take longer to boil.

The TTB (time to boil) varies directly (not inversely) with the quantity of water TBB (to be boiled).

[BWS.02] Jim plans to plant coffee beans on the farm. Coffee needs warm, moist, and sunny climate. It always snows for four months, starting from November, in the location where Jim lives. The temperature is generally moderate from June to October. Based on scientific knowledge, which of these would be the best month to plant coffee?

Answers

I believe the answer is July.

Final answer:

The optimal month for Jim to plant coffee beans is June, before the snow season and during the warm, moist climate period. Climatic factors and temperature changes due to climate change should also be considered in planning for coffee production.

Explanation:

The best month for Jim to plant coffee beans on his farm, considering the climate requirements for coffee growth (warm, moist, and sunny conditions) and the pattern of snow from November, would be June. This period, just after the moderate temperatures from June to October, would offer the newly planted coffee trees the optimal window for warm temperatures before the cold, snowy conditions set in. It's important for Jim to avoid the snow season and capitalize on the warm and moist period for the plantation.

Moreover, climate change has been an increasing concern for coffee production globally. In regions like Colombia, rising temperatures and changes in precipitation have adversely affected coffee output, requiring the development of new agricultural methods. Jim should be aware of and prepared to respond to these challenges by considering shade-grown coffee and soil health management to potentially mitigate climate change impacts.

Pressure increases with depth towards the center of earth. In which layer would you expect pressure to be the greatest.

Answers

the inner core because IT is the center of earth
it will be the inner core hope this helps

Why would machine-operated stopwatches be used at sports events instead of hand-operated stopwatches?

Answers

Probably to be more accurate. With hand-operated stop watches there is more room for (human) error.
Because they would be more accurate. And they would start and stop instantly. A human being.

List 2 examples of poor scientific mythology found in the student lab report

Answers

 1. Record the barometric pressure.  2. Measure about 10 g of ice using the chemical balance and place it into a 100 mL beaker. 

A miner of mass 90kg travels down a slide calculate the potential energy of the miner when he moves15m vertically downwards

Answers

The potential energy of the miner when he moves 15 meters vertically downward is 13,230 Joules.

How to solve for the potential energy

To calculate the potential energy of the miner as he moves 15 meters vertically downward, you can use the formula for gravitational potential energy:

Formula is given as m x g x h

Now, calculate the potential energy:

[tex]\[PE = 90 \, \text{kg} \cdot 9.8 \, \text{m/s²} \cdot 15 \, \text{m} = 13,230 \, \text{Joules}\][/tex]

The potential energy of the miner when he moves 15 meters vertically downward is 13,230 Joules.

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If the mass of a material is 43 grams and the volume of the material is 14 cm^3, what would the density of the material be

Answers

Density is the mass of a substance every a unit of volume. Therefore, the formula to count density would be mass/volume. The calculation for this problem should be:

density= mass/volume
density= 43 grams / 14 cm^3= 3.07gram/cm^3 or 3.07 gram/ml

Please i really need to get this done today..

Describe the role of producers in a food web. Are producers the basis of all food webs? Justify your answer.

Answers

Producers generate food for primary consumers. They are the basis of the food web because without them, there would be no food web.
Producers are plants, they really are the base of all food webs. This is because with out them everything would just fall apart. When you think of a food web you might think about Bunny>Snake>Hawk but the base of that food web is the plants that the Bunny eats. Without the plants everything else in the food web would starve.

Sam and Ben stand on either side of box. They use equal force to push on the box. They observe the box does not move. How did they get this result? A) Balanced forces do not affect an object's motion. B) Unbalanced forces do not affect an object's motion. C) Balanced forces do affect an object's motion by changing its position. D) Unbalances forces do affect an object's motion by changing its position.

Answers

A) Balanced forces do not affect an object's motion

12080 gallons per month into liters per hour

Answers

62 liters or 62.640 if you need decimal.


Cookware companies have been using a chemical called C-8, which helps to create a nonstick coating to pans. However, the Environmental Protection Agency (EPA) recently claimed that the use of C-8 in the manufacturing of nonstick cookware should be discontinued because studies show it causes cancer.

Answers

cookware manufactures who make pans out of steel only

The one who might benefit financially, the most from the EPA's claim are  cookware manufactures who make pans out of steel only.

What is chemical?

A compound or element which reacts with the other element to form a product.

Chemicals are generally toxic because they harm our skin, when they come in contact with the body. When exposed to a toxic substance, gasoline can affect your health. Since, drinking gasoline can cause burns, vomiting, diarrhea and can cause death.

Cookware companies which have been using a chemical called C-8, that helps to create a nonstick coating to pans. Since, the Environmental Protection Agency (EPA) recently claimed that the use of C-8 in the manufacturing of nonstick cookware should be stopped. The reason for this discontinuation is that studies show it causes cancer.

There are also the companies who made cookware out of steels only. They are most benefited by this claim.

Thus, Steel cookware manufactures are benefited by EPA claim.

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Which of the following is true?
A.
The Earth exerts a gravitational force on the Moon, but the Moon does not exert a gravitational force on the Earth.
B.
The Moon exerts a gravitational force on the Earth, but the Earth does not exert a gravitational force on the Moon.
C.
The Earth and Moon do not exert gravitational forces.
D.
The Earth and Moon both exert a gravitational force on each other.

Answers

I believe the answer is D. The reason the moon orbits around the earth is because of the earth's gravitational force on the moon. 

Answer:D.

The Earth and Moon both exert a gravitational force on each other.

Explanation: 100% right

Which law represents a balanced chemical equation? Avogadro’s hypothesis, ideal gas law, law of conservation of mass, Newton’s first law of motion, Newton’s second law of motion

Answers

Answer:

Law of conservation of mass.

Every chemical equation adheres to the law of conservation of massIt state that "Matter cannot be created nor destroyed. Therefore there must be the same number of atoms of each element on each side of chemical equation.

CO2,NaCl,HCl these maybe classified as a) elements and compounds b) elements and molecules C) elements and pure substances D) compounds and pure substances

Answers

D) compounds and pure substances
because none of them are elements

What are the two factors that affect the frictional force between two surfaces?

Answers

Answer:

The amount of force and the angle between them.

Explanation:

When the thermal energy of a material decreases, _____.

it melts

its temperature decreases

its temperature increases

the surrounding environment cools off

Answers

The surrounding environment cool off is the answer

D. The surrounding environment cools off



Please i really need help..

What energy transformation occurs when a battery-powered flashlight is switched on?

A.) chemical to light to electrical
B.) electrical to light to chemical
C.) chemical to electrical to light
D.) electrical to chemical to light

Answers

C.) chemical to electrical to light

Answer:

its chemical to electrical to light, I took the test and it was right, hope this helps!

Explanation:

A galaxy, such as the Milky Way Galaxy, is very small compared to
A.
the Solar System.
B.
the planet Jupiter.
C.
the Sun.
D.
the Universe.

Answers

Answer:

D. The universe

Explanation:

just got it correct

We may observe a sphere with a diameter of around 28 billion light years because the cosmos is enormous and has been expanding for about 13.8 billion years at a rate that is only a small fraction of the speed of light. Thus, option D is correct.

What Milky Galaxy, is very small compared to the Universe?

Even just exploring our galaxy would take countless millennia, let alone the entire universe. The Hyperion Supercluster galaxy supercluster is another old formation.

The largest and most numerous galaxy is the universe. A galaxy is a massive cluster of gas, dust, billions of stars, and their solar systems that are all bound together by gravity.

Therefore, No, every solar system and galaxy can be found in the cosmos. The Milky Way Galaxy contains hundreds of billions of stars, including our Sun, while the universe itself is made up of billions of galaxies.

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WILL MARK BRAINLIEST AND THANK
Two locations have different water vapor content in their atmosphere. Which of these is likely to be recorded?

Difference in rates of runoff
Difference in air pressure
Same humidity levels
Same temperature

Answers

same temperature and difference in air pressure
Answer:

Difference in air pressure

Explanation:

Humid air has lower air pressure because humid air contains lots of water. As more and more water enters the atmosphere it displaces other, heavier molecules. As a result air that is humid is much lighter. Since humid air is lighter, it has less weight to press down with so it has lower pressure.

Element of thunderstorms heavy rain

Answers

Lightning
Thunder
Rain
Winds
Hail

' should be presented—a succinct paragraph that encapsulates your main points and directly addresses the question asked. Secondly, an '

When crafting your answer, it is crucial to address all parts of the question and to support your points with evidence from provided readings or relevant knowledge. Aim for an in-depth exploration of the question rather than surface-level commentary. Avoid long rambling answers that stray from the main points. As per the instructions, a thorough response should contain a minimum of 3 to 4 well-developed paragraphs, with each paragraph consisting of at least 5 to 6 sentences. This format demonstrates a robust engagement with the question and reflects a high level of effort in constructing a considered response that is free of spelling and grammar errors.

Which of the following is a method of purifying water?


A. Fixation
B. Adding iodine
C. Freezing
D. Aeration

I’m between c & d

Answers

C. Freezing.
You slowly freeze the water.
D. aeration the other ones don't purify the water
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