Which equation determines the acceleration of an object moving in a straight line?

You must calculate the change in speed per unit of time.

Group of answer choices

Acceleration = ( initial speed - final speed ) / time

Acceleration = time / ( initial speed - final speed)

Acceleration = time / ( final speed - initial speed)

Acceleration = ( final speed - initial speed ) / time

Answers

Answer 1

Answer:

Option D

Last option

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Related Questions

What happens to the arrangement of atoms in matter as it is heated?

Answers

Answer:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance.

Explanation:

Atoms speed up and create more energy/heat.

A tugboat is pulling a barge into a harbor. The barge is exerting a force of 3000 N against the tugboat.

Answers

Available options are:

A. –4500 N

B. –2500 N

C. 2500 N

D. 4500 N

Answer:

-4500 N

Explanation:

Given that we have F₁ = 3000N? (force of the barge)

the force of the tugboat is F '

To pull the barge, the force of the tugboat must be greater than or equal to the force of the barge.

Hence, according to Newton's third law which states that for every action or force in nature, there is an opposite reaction.

Therefore considering the available option the correct answer is "- 4500N, " this is because it is greater than the force of the barge and it's in opposition to the force exerted.

Answer:

The answer is -4500 N

Explanation:

A box weighs 25N. How much mass does it have?

Answers

Explanation:

If box weight 25N on ground

MA=F

M(10)=25

M=2.5Kg

does uranium use steam?

Answers

Answer:

Yes.

Explanation:

Reactors use uranium for nuclear fuel. The uranium is processed into small ceramic pellets and stacked together onto sealed metal tubes called fuel rods. The heat created by fission turns the water into steam.

(answer fast and correctly and i will give you brainiest and 5 star's. )

The law of conservation of energy states:



Energy increases exponentially with time


Total energy decreases due to energy output.


Energy cannot be created or destroyed.


Energy always remains in the same form.

Answers

Answer:

Energy cannot be created or destroyed.

Explanation:

its in the name, law of "conservation" of energy. energy can only change forms not be destroyed

Answer: Energy cannot be created or destroyed.

Explanation: The law of conservation of energy states that energy can neither be created nor be destroyed due to energy loss. It can only change its states from one energy state to another.

The efficiency is defined as the ratio of output work to the input work. The efficiency of the fan is not 100%. Because some of the energy is lost in the form of heat and sound. No machine is 100% efficient. There is always some loss of energy takes place.

I really hope this helps and sorry it's late.

The first mineral to melt from a rock is

Answers

Answer:

Quartz

Explanation:

Answer:

Quartz

Explanation:

The temperature must be high enough to melt at least some minerals in the rock. The first mineral to melt from a rock will be quartz

Help! y’all get brainliest

Answers

Answer:

True

Explanation:

Dietary fiber contains an indigestible material known as cellulite. This is false statement.

What is Dietary fiber?

Plant substances that are not broken down by human digestive enzymes are referred to as dietary fiber.

Only lignin and a few polysaccharides were recognized as meeting this criterion in the late 20th century, but resistant starch and oligosaccharides were listed as dietary fiber components in the early 21st century.

The phrase "all polysaccharides and lignin, which are not digested by the endogenous secretion of the human digestive tract" is commonly used to define dietary fiber.

At the moment, the majority of animal nutritionists either use a physiological definition, which states that "dietary components resistant to breakdown by mammalian enzymes," or a chemical definition, which states that "the sum of non-starch polysaccharides (NSP) and lignin."

Learn more about  Dietary fiber here:

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HELP ME PLEASE I need the answer now and I will give all my brain lists

Answers

Answer:

I'd say it's B

Sorry if I get you wrong-

Joel uses a force of 50 Newtons to hold two weights 0.60 meters above his head. How much work is Joel doing on the weights?

Answers

30 J w=(force)(displacement) so W=(50N)(.6m) which equals 30J

i have finals! pls help​

Answers

(2). a = v/t

but v =s/t

a =s/t÷t

a=s/t×t

a=s/t²

a=220/5.21²

a=8.10m/s²

Explanation:

For the question 1, just imput the value of t into the equation

CAN A BRAINLEST HELP PLEASE!!!


The diagram below represents a rope along which
two wave pulses of equal amplitude, A, approach
point P

Answers

Might be A good luck

plaque contains billions of bacteria true or false

Answers

Answer:

true

Explanation:

Answer: True

Explanation:

A 0.144 kg baseball approaches a batter with a speed of . The batter lines the ball directly back to the pitcher with a speed of . Find the impulse exerted on the ball . If the bat and ball were in contact for 0.012 sec , find the average force exerted on the ball by the bat 20 m/s 30 m/s.

Answers

Answer:

What you say ¡

no pagal

Mayur is very very shame

Sorry

Correct the following statement:
Wind is caused by the revolution of the Earth around the Sun.
O Wind is caused by the rotation of the Earth.
O Wind is caused by the differences in air pressure on Earth's surface.
This statement is already correct.
O Wind is caused by the greenhouse effect.

Answers

Answer:

It's the 3rd option

Explanation:

Wind is caused by the differences in air pressure on Earth's surface.

What has more kinetic energy 15 kg ball rolling north at 15 m/s or a 15 kg ball rolling backwards at 7m/s

Answers

Answer:

15 kg ball

Explanation:

Please help!!!!!!!!

Answers

Answer:

Option C. 83.8 J

Explanation:

From the question given above, the following data were obtained:

Mass (m) of object = 2 Kg

Velocity (v) of the object = 5 m/s

Height (h) = 3 m

Mechanical energy =.?

Next, we shall determine the kinetic energy of the object. This can be obtained as shown below:

Mass (m) of object = 2 Kg

Velocity (v) of the object = 5 m/s

Kinetic energy (KE) =?

KE = ½mv²

KE = ½ × 2 × 5²

KE = 1 × 25

KE = 25 J

Next, we shall determine the potential energy of the object. This can be obtained as shown below:

Mass (m) of object = 2 Kg

Height (h) = 3 m

Acceleration due to gravity (g) = 9.8 m/s²

Potential energy (PE) =.?

PE = mgh

PE = 2 × 9.8 × 3

PE = 58.8 J

Finally, we shall determine the mechanical energy of the object. This can be obtained as shown below:

Kinetic energy (KE) = 25 J

Potential energy (PE) = 58.8 J

Mechanical energy =?

Mechanical energy = KE + PE

Mechanical energy = 25 + 58.8

Mechanical energy = 83.8 J

Law of superstition which was deposited first

Answers

Answer:

E is the answer.

Explanation:

A food has 2 grams of protein, 2 grams of carbs, and 2 grams of fat. How many total calories does this food have? HELP

Answers

Answer: 6 grams

Explanation:

Cause 2+2+2=6

create a formula giving the strength of the induced field (B) i terms of current (I) and the distance from the wire to the probe (d)

Answers

If this is a long straight wire, then you probably mean:
B = μ₀I/(2πd)

What is the geocentric angle of the earthquake focus?​

Answers

Answer:

epicenter

Explanation:

the epicenter Is d point directly above it at the structure of the earth

1 point
Question 11
A swimmer feels cold after leaving warm water on a warm, windy day.
Why does she feel cold even though the air is warm?
A. The less energetic water molecules on her skin escape quickly.
B. The more energetic water molecules on her skin do not escape quickly.
С The water on her skin does not evaporate quickly enough to keep her warm.
D. The water on her skin evaporates quickly and cools her skin.

Answers

Answer:

D. The water on her skin evaporates quickly and cools her skin.

Explanation:

What will happen when two neutral objects are rubbed together?

Answers

Answer:

I hope this will help you

Explanation:

When two neutral objects come into contact--especially in a dry environment--electrons can be knocked loose from one object and picked up by the other. The object that gains electrons becomes negatively charged, while the object that loses electrons becomes positively charged. Objects with like charges repel each other, while those with opposite charges attract each other. This phenomenon--in which objects acquire an electric charge and exert a force on one another--is what we call static electricity.

Whether or not the information on an online source is credible and factual, is up to the user to decide. Please select the best answer from the choices provided T F

Answers

Answer:

this statement is True

Explanation:

Deciding whether an information is credible or factual from an online source is up to the user: True

Meaning of Information and factual information

Information can be defined as facts given or acquired through learning about a topic.

Information can also be said to mean a processed data.

Factual or credible information is an information that deals with only facts. this type of information do not deal with predictions or assumptions, but rather they state fact.

In conclusion, In Deciding whether an information is credible or factual from an online source, it is True that it is up to the user

Learn more about information: https://brainly.com/question/4231278

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How are gamma rays used for communication?​

Answers

Answer:

No

Explanation:

Electromagnetic radiation is used for communications and transmission of information. The waves that are used in this way are radio waves, microwaves, infrared radiation and light.

which of the following is an example of potential energy:
(choose 1)

- a printer that is not connected
- your cellphone, when you make a call to someone

Answers

A printer that is not connecting

Which of the following best completes the sentence for Newton's Third Law? In every interaction,
forces occur in

A. specific places
B. single units
C. one direction only
D. pairs

Answers

Answer:

D in pairs

Explanation:

Forces always come in pairs - equal and opposite action-reaction force pairs.

D , it comes in pairs

The hot resistance of a 125V filament lamp is 500Ω. Determine the current taken by the lamp and its power rating.

Answers

Answer:

0.25 amps

Explanation:

V = IR

125 = I(500)

I = 0.25 amps

Why are images reflected from a rough surface not as clear as those reflected from a smooth
surface?

Answers

Answer:

Just as images are reflected from the surface of a mirror, light reflected from a smooth water surface also produced a clear image. ... Consequently, the outgoing rays are reflected at many different angles and the image is disrupted. Reflection from such a rough surface is called diffuse reflection and appears matte.

Explanation:

hi po I hope it's help you

Speed = Distance Time Velocity = 1. Find the velocity of a truck that travels 75miles north in 2.5 hours? List: Equation: Substitution: Answer with units:​

Answers

Answer:

187.5 m/s (i think)

Explanation:

If you use the formula V= T times displacement you can find this out by doing the following-

Displacement equals 75 m

T equals 2.5 hrs

75x2.5= 187.5

and since velocity is measured in m/s, it becomes

187.5 m/s

The current in the wires of a circuit is 60.0 milliAmps. If the
voltage impressed across the ends of the circuit were
doubled and the resistance were tripled, then its new current
would be ___ milliAmps.

Answers

Answer:

I' = 40 mA

Explanation:

Given that,

The current in the wires of a circuit is 60.0 mA.

If the  voltage impressed across the ends of the circuit were  doubled and the resistance were tripled such that,

V' = 2V and R'=3R

The relation between current, voltage and resistance is given by :

V = IR

Let I' be the new current. So,

V'=I'R'

⇒ [tex]I'=\dfrac{V'}{R'}\\\\I'=\dfrac{2V}{3R}\\\\I'=\dfrac{2}{3}\times \dfrac{V}{R}\\\\I'=\dfrac{2}{3}\times I\\\\I'=\dfrac{2}{3}\times 60\\\\I'=40\ mA[/tex]

So, the new current would be 40 mA.

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