Which of the following answers describe how to calculate the acceleration of an object?
A. Divide the change in the objects velocity by the time it takes to make that change.
B. Divide the time the object travels by the distance it travels.
C. Calculate the distance the object travels and divide that by the time it takes to get there.
D. Calculate the velocity of an object and divide that by the time the object is in motion.

Answers

Answer 1
I think it's A I hope this is right but I just studied this so I think this is the right answer
Answer 2

A. Divide the change in the objects velocity by the time it takes to make that change.

Explanation:

Acceleration is a vector quantity whose magnitude is given by the following equation:

[tex]a=\frac{\Delta v}{\Delta t}[/tex]

where

[tex]\Delta v[/tex] is the change in velocity of the object

[tex]\Delta t[/tex] is the time it took to make the change in velocity

Therefore, we see that this equation corresponds to choice A.


Related Questions

Classify Use periodic table to classify the elements potassium (K) ,Bromine (Br) and argon, (Ar) according to know likely their atoms are to do the following

A-Lose electrons to form positive ions
B-Gain electrons to form negative ions
C-Neither gain or lose electrons

Answers

Final answer:

Potassium is likely to lose electrons to form positive ions, Bromine is likely to gain electrons to form negative ions, and Argon is neither likely to gain or lose electrons.

Explanation:

Potassium (K) is in Group 1 of the periodic table, which means it has one valence electron. It is highly likely to lose this electron to form a positive ion (K+).

Bromine (Br) is in Group 17, so it has seven valence electrons. It is highly likely to gain one electron to complete its octet and form a negative ion (Br-).

Argon (Ar) is in Group 18, a group of noble gases that have a full octet of valence electrons. These elements are stable and generally do not gain or lose electrons.

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List at least three things that can happen as plate spread apart.
b. Place these events in order by numbering them

Answers

Centre of Mass then axis of rotation and then moment of inertia. This was the toughest question for your level... happy to help ^_^. It was purely experimental question.

What is one difference between a window, a leaf, and a metal spoon?

Answers

They are all made up of at least one different element
The leaf is alive while the others are not.You can see out of a window but with a leaf and a metal spoon you can't.

compare the life cycles of flower less seed plant and flowering seed plants

Answers

Flower seeds go through germination

The life cycles of gymnosperms and angiosperms include seed germination and development stages; however, angiosperms are unique in their production of flowers and fruit-enclosed seeds, which distinguishes them from gymnosperms with exposed seeds on cones.

The life cycles of both non-flowering seed plants, like gymnosperms, and flowering seed plants, known as angiosperms, are characterized by a sequence of developmental stages from seed germination to the production of new seeds. However, there are fundamental differences between these two groups of plants. In the life cycle of a gymnosperm, seeds are not enclosed within a fruit but are often found on the scales of cones. In contrast, angiosperms produce seeds within a fruit, which develops from the flower.

The flower is the reproductive structure that typically includes petals, stamens, pistils, and is responsible for the sexual reproduction of these plants. Angiosperms are divided into two main groups: monocots and dicots. Basal angiosperms differ from other flowering plants in having traits that are more ancestral or less derived. The life cycle of an angiosperm involves alternating generations, with the sporophyte phase being the dominant generation.

The process of seed development in angiosperms is often characterized by the acronym RRAPP, signifying Reduction of the gametophyte, Retention of the gametophyte within the tissues of the parent plant, Arrested development of the seed until favorable conditions, Provisioning of the embryo with nutritive tissue, and Packaging of the seed with a protective coat.

Summarily, the distinctive flower structure and the protected seed development are key differentiators of angiosperms when compared with gymnosperms. Both life cycles show reduction in the haploid stage and growing complexity over time, but angiosperms have advanced further by incorporating flowers and encased seeds into their reproductive strategy.

a scientist discovers an object in the solar system .she describes it as bigger than an asteroid,smaller than mercury and farther than Neptune from the sun what is it explaine

Answers

it could be explained as space debris or as Pluto is explained, not big enough to be a planet.

Answer: Probably the dwarf planet - Pluto

Explanation:

Pluto was once a planet and was demoted to a dwarf planet.  It has size smaller than mercury ( 25 times smaller) but larger than asteroid. Pluto has 5 moons. It lies beyond the orbit of Neptune in the Kuiper belt. It was discovered by Clyde Tombaugh in 1930. Pluto revolves around sun in 248 years.

The object discovered by the scientist is most likely to be Pluto.

what is friction. what does friction do as an ice skater slide across the ice?

Answers

Friction - force resisting the motion. 
This force will finally stop him (change his initial velocity to zero)

Final answer:

Friction is a force that opposes motion between surfaces in contact. When an ice skater slides across the ice, friction between the skates and the ice slows them down and eventually brings them to a stop.

Explanation:

Friction is a force that opposes relative motion between surfaces in contact. When an ice skater slides across the ice, friction between the skates and the ice slows down the skater and eventually brings them to a stop. The ice skates exert a force on the ice, and the ice exerts an equal and opposite force on the skates, creating friction.

red fox
sage shrub
fence lizard
grasshopper
If these organisms were arranged in a food pyramid, which organism would have the LEAST amount of total energy available?
A. red fox
B. sage shrub
C. grasshopper
D. fence lizard

Answers

In a food pyramid, the organism that has the least amount of total energy available is the one that is in the bottom or last. In this case, given the list of organisms above, the organism that would have the least amount of total energy available would be the RED FOX. The answer is option A. Hope this answer helps.

Answer:

The answer is A: red fox

Explanation:

1. A student studying a circuit diagram of a lightbulb, battery, and a switch correctly identifies it as a closer circuit. In this diagram, The lightbulb would be
a. an insulator
b. on
c. disconnected
d. off

2. The force of gravity on an object on the surface of Mars is less than the force of gravity on an identical object on the surface of earth. Which of the following is a example why this is true?
a. Mars has more volume than earth
b. Earth has more volume then mars
c. Mars has less mass than earth
d. Earth has less mass then mars

Answers

a. an insulator


c. Mars has less mass than earth

How is momentum conserved in a system in which two satellites connect?

Question 19 options:

The one satellite has all the momentum before they connect, and then afterwards they share it.


Both satellites have momentum before they connect, and afterwards they have less momentum.


Both satellites have momentum before they connect, and afterwards they have more momentum.


Momentum is not conserved when the two satellites connect.

Answers

Answer:

The one satellite has all the momentum before they connect, and then afterwards they share it.

Explanation:

I took the test and I got it correct.

Hope this helps! :)

Final answer:

Momentum is conserved in a system where two satellites connect. Before the connection, both satellites have momentum, and after the connection, the total momentum of the system remains the same.

Explanation:

Momentum is conserved in a system in which two satellites connect. Before the connection, both satellites have momentum, and after the connection, they continue to have momentum. However, the total momentum of the system remains the same before and after the connection. This means that if one satellite gains momentum, the other satellite must lose an equal amount of momentum to maintain conservation of momentum

Therefore, the correct option is option A The one satellite has all the momentum before they connect, and then afterwards they share it.

what are some non examples of proton

Answers

An example of something that is not a proton would be an electron. It has a negative charge and has a charge of 1.6X10^-19 Coulombs.

The element oxygen, represented by the symbol O, is classified as

Answers

Hi , the element oxygen is classified as a nonmetal.
A pure substance. Oxygen is a element and cannot be a solution compound or a mixture.

suppose you want to build a house on the edge of a hill that overlooks a deep valley. what measures could you take to be sure your home will not have problems due to weathering or erosion

Answers

Well you could drive stakes or piers down into the bedrock to anchor it, but you would still need to be cautious of erosion.

Which of the following is NOT a developer of an atomic model?
A- Dalton
B- Planck
C- Rutherford

Answers

Planck is the only one that is not a developer of the atomic model

a 6 pack of undershirts cost 13.98. This is 3.96 less than the cost of buyng 6 individual shirts if each undershirt cost the same amount , how much does each undershirt cost when purchased individually.

Answers

So you know the pack is 13.98 and is 3.96 less that 6 shirts individually. So you add 13.98 and 3.96 together and then divide that by 6 which will give you the individual shirt amount. The answer will be 2.99 per shirt.

All of the following are possible sources of error in a scientific investigation except for
A. Measuring the change in temperature incorrectly
B. Manipulating the wrong variables in the experiment
C. Reviewing previously published studies before the experiment
D. Completing only one trial in the experiment

Answers

"c" reviewing previously published studies before the experiment

Your answer would be C my friend

You exert a force of 15 newtons while you move a rock 2 meters. How much work did you perform?


a) 17 n-m


b) 30 meters


c) 7 1/2 newtons


d) 30 n-m

Answers

The formula to find work is [tex]Work = Force * Distance[/tex]. In this case, the force exerted on the rock is 15 Newtons and the distance the rock moved was 2 meters, so 15 * 2 = 30. The answer to your question is D) 30 n-m.

Can you tell me at least three states of matter that are fluids?

Answers

Liquid, Gases, and plasmas.

Which type of bond (ionic, covalent, or metallic) does the phrase "opposite attract" apply to best? Explain.

Answers

Ionic is where the bonding of elements attract opposites
I think the answer is ionic bonding. 

who participates in sport more? women or men and why?

Answers

More women ...........I'm not sure why
Men play more sports than women, considering that men began sports and games before women were able to play anything at all......hopefully i helped and if i gave best answer plzz give brainliest!! Have a great day!!

The Apollo missions ended with what mission?

Answers

The missions ended with Apollo 13 

The Apollo missions ended with Apollo 17, which landed on the Moon in December 1972 and included a geologist among its astronauts.

The Apollo missions concluded with Apollo 17, which was the last mission to land on the Moon. This historic mission took place in December of 1972 and marked the culmination of NASA's lunar landing efforts. While there were a total of nine Apollo flights to the Moon, six of which successfully landed while the others orbited the Moon, it was Apollo 17 that closed this pioneering chapter in space exploration.

The mission was not only significant for its successful lunar landing but also because it included a scientist, geologist Jack Schmitt, among the astronauts, enhancing the mission's scientific contribution.

John and Daniel are playing tug-of-war together. John is exerting 10 N of force. Daniel is exerting 12 N of force. What is their net force

Answers

We assume that they're pulling in opposite directions ...
that's how this game works.

Daniel completely cancels out John's whole 10N, and he
still has 2N left over.

The NET force on the rope is 2N in the direction of Daniel.
So the rope accelerates in Daniel's direction.

an unbalanced force moving everyone in Daniel and Maria's direction

Table salt (NaCl) dissolves in water. What happens when saltwater is made? A) The salt crystals sink to the bottom of the water. B) The salt crystals split into ions. C) The salt crystals float to the top of the water. D) The water molecules split into ions

Answers

b. the salt crystals will dissolve so they will split into ions

b the salt will split into ions 

All scavengers are consumers but not all consumers are scavengers true or false explain your answer.

Answers

This is true. Scavengers are organisms that eat dead matter, and they can't produce their own food, so they are consumers. On the other hand, not all consumers are scavengers, because a leopard doesn't eat dead things (unless it's desperate). Some consumers eat things they just caught that haven't been sitting there for a few days, dead and decaying.
Hope this helps!

Which BEST describes the difference between speed and velocity?
A) Velocity is instantaneous.
B) Speed is a vector quantity.
C) Speed includes rate of change and direction.
D) Velocity includes rate of change and direction.

Answers

Answer : The correct option is, (D) Velocity includes rate of change and direction.

Explanation :

Speed : Speed is defined as the distance traveled by an object with respect to the time taken. It is a scalar quantity that means it tell us about the magnitude of an object not direction.

Velocity : Velocity is defined as the rate of change of position of an object with respect to the time. It is a vector quantity that means it tell us about the magnitude and direction of an object.

The only difference between the speed and the velocity is that the velocity tell us about magnitude and direction but speed tell us about magnitude only.

Hence, the correct option is, (D) Velocity includes rate of change and direction.


Final answer:

Speed is a scalar quantity that only considers the magnitude of movement, while velocity is a vector quantity that includes both the magnitude and direction of movement.

Explanation:

D) Velocity includes rate of change and direction.

Speed and velocity are both terms used to describe how fast an object is moving. However, there is a key difference between the two. Speed is a scalar quantity, meaning it only considers the magnitude or size of the movement. Velocity, on the other hand, is a vector quantity. This means it includes both the magnitude and direction of the movement.

For example, if a car is traveling at a speed of 60 miles per hour, that only tells us how fast it is going. However, if we say the car is traveling at a velocity of 60 miles per hour northeast, that tells us both the speed and the direction.

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which of the following accurately shows how to calculate the weight of a 20kg object
20kgx9.8m/s
20kg/mass of the earth
20kg/9.8m/s
20kgxmass of the earth

Answers

The answer to your question is "20kgx9.8m/s" because weight is the force an object is exerting on another object, and the formula used to calculate force is Force = Mass * Acceleration.

Answer:

[tex]\Huge \boxed{\mathrm{20\ kg \cdot 9.8\ m/s^2}}[/tex]

Explanation:

[tex]\sf Weight \ (N)= mass \ (kg) \times acceleration \ of \ gravity \ (m/s^2)[/tex]

[tex]W=mg[/tex]

The mass of the object is 20 kg.

The acceleration of gravity is approximately 10 m/s².

[tex]W=20 \times 10[/tex]

[tex]W=200[/tex]

The weight of the object is 200 N.

Explain how the first three steps of scientific inquiry are related.

Answers

The first three steps in scientific inquiry are related in that they are all equivalent to being on a fact finding mission. The three steps are to find or develop the question that must be answered, to study all related academic literature on the subject, and then to make a guess as to what the answer is.
I hoped I helped!

Answer:

Explanation:

The scientific inquiry is a fact finding inquiry for determining the cause or occurrence of the natural processes, events or phenomena. The three steps of the scientific inquiry are related such a making a background research for the desired topic, observation of the natural process, and making hypothesis based on the observation. These three steps are basic for conducting a research and for finding the facts associated with the research.

Amy has a mass of 30 kg, and she is riding a skateboard traveling 5 m/s. What is her momentum

Answers

We Know, P = m*v
Here, m = 30 Kg
v = 5 m/s

Substitute it into the expression, 
P = 30*5 Kgm/s
P = 150 Kgm/s

So, your final answer is 150 Kg.m/s

Hope this helps!

The momentum of Amy of mass 30 kg travelling at a speed of 5 m/s is 150 Kg m/s²

What is momentum?

Momentum is defined as the product of mass and velocity of a body. Mathematically, we can write vector as -

p = mv

It is a vector quantity. In a three dimensional coordinate, the momentum vector can be resolved as -

[p] = p[x] a[x] + p[y] a[y] + p[z] a[z]

[p] = m {v[x] a[x] + v[y] a[y] + v[z] a[z]}

Given is Amy of mass 30 kg and she is riding a skateboard traveling 5 m/s.

Mass of Amy = [m] = 30 Kg

Velocity of Amy = [v] = 5 m/s

Now, the momentum of Amy will be -

p[A] = mv = 30 x 5  = 150 Kg m/s²

Therefore, the momentum of Amy of mass 30 kg travelling at a speed of 5 m/s is 150 Kg m/s²

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Using Hooke's law, F spring=k delta x, find the distance a spring with an elastic constant of 4 N/cm will stretch if a 2 newton force is applied to it.
A.) 2 cm
B.) 1/2 cm
C.) 4 cm
D.) 8 cm

Answers

Hello!

Using Hooke's law, F spring=k delta x, find the distance a spring with an elastic constant of 4 N/cm will stretch if a 2 newton force is applied to it.

Data:

Hooke represented mathematically his theory with the equation:

F = K * Δx  

On what:

F (elastic force) = 2 N

K (elastic constant) = 4 N/cm

Δx (deformation or elongation of the elastic medium or distance from a spring) = ?

Solving:


[tex]F = K * \Delta{x}[/tex]

[tex]2\:N = 4\:N/cm*\Delta{x}[/tex]

[tex]4\:N/cm*\Delta{x} = 2\:N[/tex]

[tex]\Delta{x} = \dfrac{2\:\diagup\!\!\!\!\!N}{4\:\diagup\!\!\!\!\!N/cm}[/tex]

simplify by 2

[tex]\Delta{x} = \dfrac{2}{4}\frac{\div2}{\div2}[/tex]

[tex]\boxed{\boxed{\Delta{x} = \dfrac{1}{2}\:cm}}\Longleftarrow(distance)\end{array}}\qquad\checkmark[/tex]

Answer:

B.) 1/2 cm

_______________________

I Hope this helps, greetings ... Dexteright02! =)

Final answer:

Using Hooke's Law and the given force and spring constant, we can calculate that a spring will stretch 1/2 cm when a force of 2 Newtons is applied.

Explanation:

In this problem, we're tasked with using Hooke's law, which in mathematical terms is expressed as F = k delta x. Here, F denotes force, k is the spring constant, and delta x represents the distance the spring moves or is stretched from its original position.

This law shows the relationship between the force applied to a spring and the distance it stretches. The greater the force applied, the further the spring stretches. The spring constant, meanwhile, represents the spring's resistance to distortion.

Given that the force 'F' is 2 Newtons, and the spring constant 'k' is 4 Newtons per centimeter, we substitute these values into Hooke's law:

2 = 4 * delta x

By rearranging the equation to solve for delta x, we can find that the distance the spring stretches is 0.5 cm. Therefore, the correct answer is:
B.) 1/2 cm

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At the beach, describe where or when you would see wave
fronts. How are wave fronts useful to surfers?

Answers

Kim did u do your concepts?

Final answer:

Wave fronts at the beach are observable as waves approach the shore and become nearly parallel due to refraction, which is significant for surfers as it creates larger waves off points and headlands, ideal for surfing.

Explanation:

At the beach, wave fronts are observed especially where ocean waves formed by winds reach the shallower waters near the shore. Due to the phenomenon of wave refraction, as waves travel from deeper to shallower water, their speeds decrease, causing the wave fronts to realign almost parallel to the shoreline. This process is critical for surfers as the refraction of wave fronts concentrates wave energy towards points and headlands, offering larger and more consistent waves suitable for surfing.

Surfers benefit from understanding wave fronts and wave refraction because it helps them identify the best spots for larger waves, particularly off of points and headlands where wave energy is focused. Meanwhile, bays will have calmer waters due to the dispersion of wave energy, making them less ideal for surfing. This knowledge is crucial for surfers when choosing locations to surf, as the geometry of the coastline significantly influences wave characteristics.

A car is traveling at a constant velocity of 60 km/h for 4 hours. Choose the correct statement about the acceleration of the car. A) The acceleration of this car is zero. B) The acceleration of this car is positive. C) The acceleration of this car is negative. D) The acceleration of this car is 15 m s .

Answers

You really need to learn the definition for acceleration. That's where one begins in learning physics, the definitions. 

In this case, acceleration is defined to be the change in velocity over an interval of time. 

You have an interval of time dT = 4 hrs, but do you have a change in velocity, dV? No. Why? Because you have "a constant velocity" which means no change. In math talk that's dV = 0. 

So by definition and in math talk, A = dV/dT = 0/4 = 0 acceleration. ANS. A
The best we can say about this question is that it's ambiguous ...
we can't be sure that it gives us enough information to answer it.

You start by saying that the car's velocity is constant.  But then you
seemingly illustrate that by telling us only its speed, and nothing about
the direction it's driving. 

'Velocity' means its speed AND direction.  (You and I need to tell Mr. Plz
below that he should focus more attention on learning his definitions.)

If velocity is constant, then speed AND DIRECTION are constant. 
'Acceleration' means ANY change in speed OR direction.  That's right ! 
Going around a curve at constant speed is accelerated motion.

We know that the car in the question never changes its speed for 4 hours.

If its DIRECTION never changes during the same time, then there has been
no acceleration.

If it ever changes direction ... turns a corner or goes around a curve in the
road ... then there has been acceleration, during the time its direction was
changing.
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