A 2.0-kilogram ball rolls down a ramp. if the ball accelerates at a rate of 12 m/s2, the net force causing the acceleration is:
a:6 newtons
b:10 newtons
c:12 newtons
d:24 newtons

Answers

Answer 1

Answer:

D

Explanation:

f = ma

2 x 12 = 24

answer could differ since it's rolling down a ramp. if an angle is given our approach differs.


Related Questions

The parenting style that can be described as restrictive and controlling is called __________. a. authoritarian b. permissive c. neglectful d. authoritative please select the best answer from the choices provided a b c d

Answers

The parenting style that can be described as restrictive and controlling is called authoritarian.

What is authoritarian?

The rejection of political plurality, the use of strong central power to maintain the political status quo, and reductions in the rule of law,

The separation of powers and democratic voting characterize authoritarianism.

Many typologies of authoritarian systems of administration have been developed by political scientists.

Authoritarian governments can be autocratic or oligarchic, and they can be founded on party or military authority.

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After a student shoves a book across a flat table, it begins to slow down. Why?

Answers

Answer:

The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down. When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object. The frictional force from a fluid is called a drag force.

When a dielectric slab is inserted between the plates of one of the two identical capacitors

Answers

Answer:(A-P,S;B-P,S;C-Q,S;D-P,S)

Solution

(A)→P,S,(B)→P,S,(C)→Q,S,(D)→P,S.

Explanation:

What two forces propel the acceleration of change in human societies today?

Answers

Answer:

Collective behavior and social movements

Explanation:

Social movements are a collective behavior but are organized efforts and goal driven. It can range from local to national and can even reach globally. Groups that are behind social movements usually want to either create or resist social, political, economic, or cultural change.

The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.

What are fossil fuels?

Fossil fuels are obtained beneath the earth's crust, which is formed due to buried plants and animals. The excessive heat under the earth crust heats the plants and animals.

The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.

Hence, the use of fossil fuels such as coal, oil, and natural gas, and technical advancements are two forces that propel the acceleration of change in human societies today

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What is current of 12 ohm? help me pleasee​

Answers

1 Ampere

Explanation:

1/R = 1/8 + 1/10 + 1/12
1/R = (30 + 24 + 20) / 240
1/R = 74 / 240
R = 240 / 37
R = 120/37 Ohms
We know that,
V = IR
I = V/R
I = 12 / (120/37)
I = 12 × 37/120
I = 37/10
I = 3.7 A
Now,
The current in 12 ohm resistor →
= 1 A
∴ The current in 12 ohm resistor is​ 1 ampere

If you were to build a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz. The speed of sound in air is 343 m/s

Answers

Building a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz will require the length of the shortest pipe to be 0.018m

What is Length?

This is defined as the measurement or extent of a substance from end to end. The formula is shown below:

L = v/f where v is speed , f is frequency

f1 = 25hz , f2 = 19khz

The length for both sides is seen below:

l1 = 343/25 = 13.72m

l2 = 343/19000 = 0.018m.

The length of the shortest pipe is therefore 0.018m.

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The frequency of a repeated event is the number of occurrences per unit of time. The length of the shortest pipe is 0.018 m.

What is the frequency?

The frequency of a repeated event is the number of occurrences per unit of time. It is also known as temporal frequency to distinguish it from spatial frequency, and ordinary frequency to distinguish it from angular frequency.

The formula of the length is given by the formula,

[tex]L=\dfrac vf[/tex]

where v is the velocity of the substance and f is the frequency.

Given that the speed of the sound in air is 343 m/sec, while the frequency is tanging from 25Hz to 19 kHz.

Therefore, the length of the pipe will be,

[tex]L=\dfrac vf\\\\L_1=\dfrac{343}{25} = 13.72\rm\ m[/tex]

[tex]L_2=\dfrac{343}{19 \times 1000} = 0.018\rm\ m[/tex]

Hence, the length of the shortest pipe is 0.018 m.

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How much force does the astronaut exert on his chair while accelerating straight up at 10.0 m/s2m/s2

Answers

Answer:

M a = Fc -M g

Use up as positive - a is the acceleration upwards

Fc = M (a + g)       force exerted by chair

Fc = 19.8 M m/s^2      where M is the mass of the astronaut

The force exerted by the astronaut accelerating straight up with an acceleration of 10 m/s² is m/5 Newton.

What is force?

If you want to accelerate a body of mass 'm' with acceleration 'a' than a force of magnitude given by the product of mass and acceleration is needed.

Given is an astronaut accelerating straight up with an acceleration of 10 m/s².

Since the astronaut is moving in upward direction, the resultant resultant force is in upward direction. Now, assume that the force exerted by the astronaut on the chair is F[A].  The normal reaction force on the astronaut will also be same. Mathematically -

F[N] = F[A]

Now, we can write the resultant normal reaction force as -

ma - mg = F[N]

F[N] = m(a - g)

F[N] = m(10 - 9.8)

F[N] = m(0.2)

F[N] = m/5

F[A] = F[N] = m/5

where m is the mass of astronaut.

Therefore, the force exerted by the astronaut accelerating straight up with an acceleration of 10 m/s² is m/5 Newton.

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Jessie hits a foul ball
straight up in the air
during a softball game.
Assuming all energy is
conserved, at what height
did the 3 kg ball travel if it
had a velocity of 11 m/s?

Answers

Answer:

GPE=(3*11^2)/2

(3*121)/2

363/2

GPE=181.5J

Explanation:

Pure substances can be made of atoms that are attracted to each other or atoms that are not attracted to each other. Which type of pure substance can create elaborate structures? (1 point)

Atoms that are attracted to each other because the bonds that form between them can support the creation of the structure.

Atoms that are attracted to each other because they will mix together to form a mixture with a different structure.

Atoms that are not attracted to each other because they will form bonds with each other and create a larger structure.

Atoms that are not attracted to each other because they will stay still and end up laying on top of each other. ​

Answers

Answer: atoms that are attracted to each other because the bonds that form between them can support the creation of the structure

Explanation:

Is it possible For dogs to be gray

Answers

Answer:

Yes, it is possible for dogs to be grey

Explanation:

Whippets are gray and they are a type of dog

Answer: Like humans, dogs tend to go gray as part of their natural aging process.

Explanation: Just like us, humans, dogs tend to go gray as part of their natural aging process. And just like us, as dogs get older, the pigment cells responsible for color (specifically, melanin) stop being produced; this causes the strands to come out at a lighter shade, like gray or white.

                            Hopes this helps you out!

                                 Have a nice week!

Which best describes an action related to interdependence?
A. limiting the amount of fish harvested to ensure future availability
B. finding methods for extracting oil with minimal damage to the environment
C. using calculations to ensure that lumber is used efficiently
D. predicting the profits from selling metal that is extracted from ore

Answers

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

Which best describes an action related to interdependence?

A. limiting the amount of fish harvested to ensure future availability

B. finding methods for extracting oil with minimal damage to the environment

C. using calculations to ensure that lumber is used efficiently

D. predicting the profits from selling metal that is extracted from ore

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

The living things in an ecosystem are interdependent. This means that living things depend on their interactions with each other and also nonliving things for survival. For example, a tree depends on sunlight for energy and food.

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

-PoliteCat

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ᴄʟɪᴄᴋ ᴛʜɪs ↓

Which change is an example of transforming potential energy to kinetic energy?

Answers

Answer:

Changing nuclear energy to radiant energy

Explanation:

   Conversely, potential energy is a type of energy stored in an object, which can be converted to kinetic energy.

   Nuclear energy is a type of potential energy because this energy is stored in the atomic nucleus.

In conclusion, changing nuclear energy to radiant energy is an example of transforming potential energy into kinetic energy.

Answer:

if you stand still, that's potential energy, and if you move that's kinetic energy.

Explanation:

When standing still, you aren't moving, which the potential energy now is enact, but if you move a muscle, even the tiniest one, it will cause a transformation into kinetic energy.

Is an electron cloud bigger than an atom?

Answers

Answer:

no

Explanation:

An electron is one of the components of an atom, so it cannot be larger than that.

Answer:

No, it's not.

Explanation:

The tightly packed nucleus is 100,000 times smaller than the electron cloud.

What will happen to the fringe spacing if the wavelength of the light is decreased?.

Answers

Answer:

The formula is the form -

m λ = d sin Θ

As the wavelength λ is decreased sin Θ will also decrease.

One can see from the derivation that as the wavelength, being considered,

is decreased the dispersion will also decrease.

Scientists have organized all forms of energy into two types—kinetic and potential. Kinetic energy is the energy of motion, and potential energy is stored energy.

Raise the pendulum again. Carefully watch the Energy Graph on the left. It shows the amount of energy the pendulum has as it moves.

At the top of its swing, does the pendulum have kinetic energy or potential energy?
PLEASE HELP!

Answers

Answer:

Potential energy only

Explanation:

at the top of its swing the pendulum stops moving , (therefore it has no KINETIC energy)  thus all of the energy is stored as potential energy.

The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba

Answers

Answer:

The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba

Explanation:

The potential difference across the terminals of a battery is `8.4 V` when there is a current of `1.50 A` in the battery from the negative to the positive terminal. When the current is `3.50 Air`, the reverse direction, the potential difference becomes `9.4 V`. <br>(a) What is the internal resistance of the battery? <br>(b) What is the emf of the battery?

A student makes this statement before conducting an experiment on electromagnetic radiation: "We expect the laser to diffract when passed through a slit." Which of the following explains why the student's statement is not a claim?


(1 point)

It is a prediction or hypothesis.


It cannot be verified experimentally.


It is part of the evidence to support a claim.


It is a description of the experimental results.

Answers

Answer:

it is a prediction or hypothesis4

When does sound become damaging to the human ear?

Answers

when someone yells in it

Use the drop-down menus to complete the statement. if an electric circuit has 0 a of current running through it, then the must be .

Answers

If an electric circuit has zero Ampere (0A) of current running through it, then the voltage must be zero.

What is ohm's law?

At constant temperature, Ohm's law says that the current flowing through an electric circuit is directly proportional to the voltage

Also, the current flowing through an electric circuit is inversely proportional to the resistance in the electric circuit.

This means that the magnitude of voltage (potential difference) is significantly reliant on the value of current flowing through an electric circuit.

This formula expresses Ohm's law mathematically.

V=IR

Where:

V is the voltage is measured in volts.

I denote the current in amperes.

R denotes the resistance in ohms.

Finally, if an electric circuit has zero ampere (0A) of current flowing through it, the voltage must also be zero.

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Answer:

voltage, zero

Explanation:

Differentiate between transverse wave and longitudinal wave​

Answers

Explanation:

Transverse wave

The wave in which the particles of the medium vibrate up and down perpendicularly to the direction of the wave is called transverse wave...It consists of crests and troughs...It can be produced only in solids and surface of liquids...

Longitudinal wave

The wave in which the particles of the medium vibrate to-and-fro in the direction of the wave is called longitudinal wave..It consists of compressions and refractions...It can be produced in solid , liquid and gas...

What do you think about Turkey??​

Answers

very good very nice lolllllllllllllllll

What led to Henry Ford’s success as an entrepreneur?


His personal wealth.
His innovative production methods.
His commitment to improving labor laws.









What happens when volcanoes release greenhouse gases into the atmosphere?

The climate gets warmer.
The climate gets cooler.
Winter becomes longer.
Summer becomes longer.





His desire to pay high wages.

Answers

What led to Henry Ford’s success as an entrepreneur?

His innovative production methods

What happens when volcanoes release greenhouse gases into the atmosphere?

The climate gets warmer
How innovative production methods

Convert 95°F into degree centigrade.​

Answers

35

Explanation:

95 =9/5*x +32

63=9/5x

9x=63*5

x=35

Blue, green, and red are _______ colors of light.

Answers

Answer:

the answer is white they combine to give white

Answer:

they are primary colors of light.

(pls don't delete this answer because I am just trying to help)

If a star is 720 , 000 , 000 , 000 , 000 meters from Earth, how many seconds does it take light to travel from the Earth to the star

Answers

Answer:

anywhere between 100000 to about 400000 human years .

Explanation:

Knowing the direction of heat flow, explain why if you leave a hot bowl of soup out in the open on the countertop, it eventually gets cold. Where is the heat going?

Answers

The heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.

Where does the heat go?

We know that when two bodies of different temperatures there will be a flow of heat between the objects, from the hotter one to the colder one.

In this case, we have the bowl of soup as the hot object, and the ambient (the countertop, the air surrounding the bowl, etc) itself will be the cooler object.

Then the heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.

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Why does the law of conversion of mass make sense?​

Answers

Explanation:

If u mix 1g of salt with 100 ml of water, both dissolves but at the same time the mass of the solution increases.

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction

Answer:

The law of conservation of mass was crucial to the progression of chemistry, as it helped scientists understand that substances did not disappear as result of a reaction as they may appear to do; rather, they transform into another substance of equal mass.

Explanation:


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[tex] \text{What is ideal-gas equation?}[/tex]

Answers

Answer:

PV = nRT

Explanation:

The Ideal Gas Equation shows the relation between 4 factors :-

Pressure Volume moles Temperature

⇒ R is the molar gas constant included so they are equal to each other, without it, they would just be proportional

The equation :-

⇒ PV = nRT

what are various paradox related to time travel?​

Answers

Answer:

This is a paradox — an inconsistency that often leads people to think that time travel cannot occur in our universe." A variation is known as the "grandfather paradox" — in which a time traveler kills their own grandfather, in the process preventing the time traveler's birth

Explanation:

hope this Wil help ....

Why do comets only have tails when they are near the sun?.

Answers

When far from the sun, a comet is like a stone rolling around the universe. But when it approaches the sun, the heat evaporates the comet's gases, causing it to emit dust and micro particles, electrons and ions.
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Is this better, worse, or basically the same as allocating to each of the 7 billion people on Earth 10 pounds of untradeable emissions permits per year?a. better, because it lowers the cost of emissions abatementb. worse, because it raises the cost of emissions abatementc. about the samed. It is impossible to say. Why is transmission successful for Gabriel but not for Lilly?book: the giver Estimate the difference 7 3/4-2/25 Show your work. A thin uniform disk of mass m and radius r has a string wrapped La Corrida de TorosRead through the following description of bullfighting. Although it is in Spanish, try to get the main ideas of the paragraph. 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