Calculate the acceleration of a train travelling from rest to 24 m/s in 12 seconds.
Answers
Answer:
2 m/s²
Explanation:
Acceleration is equal to velocity divided by the time taken.
24 / 12
= 2
The units for the acceleration is m/s².
The acceleration of the train traveling from rest to 24 m/s in 12 seconds is 2 m/s².
Related Questions
What is one way that an electric field is different from a magnetic field?
Answers
Answer:
The one of the major difference between the magnetic and electric field is that the electric field induces around the static charge particle which is either negative or positive, whereas the magnetic field produces around the poles (i.e., the north and south pole) of the magnet
Explanation:
Difference Between Electric Field And Magnetic Field. Magnetic field is an exerted area around the magnetic force. It is obtained by moving electric charges. The direction of the magnetic field is indicated by lines. While the electric fields are generated around the particles which obtains electric charge.
Explanation:
hope this helps
The reciprocal of 6 4/5 is _____.
Please help :(
34/5
29/5
5/34
15/5
Answers
Answer:
5/34
Explanation:
you have to multiply 6 and 5 then add 4 and that’s your numerator and 5 is you denominator
What needs to happen before the water in a pot begins to gain thermal energy?
Answers
Answer:
The heat needs to reach the pot so the water can boil?
Explanation:
Answer:
Through conduction.
Explanation:
Conduction is energy transferred through direct contact. There are two conduction processes going on here. First is the heat from the stove or whatever is the heat source going into the pot. Then it is the heat from the pot going into the water causing it to boil
A box rests motionless on the ground. One student is pushing the box to the right with a force of 2 Newtons. The other student is pushing to the left with a force of 5 Newtons. In which direction will the box move
A. It will move left.
B. It will move right.
C. The box will lift up off the ground.
D. The box will not move
Answers
A spring having a spring constant of 180 N/m is stretched 0.51 m from its equilibrium position. How much elastic potential energy does the spring possess?
Answers
Answer:
23.41 N
Explanation:
Formula to find elastic potential energy is, P.E=0.5*k*delta x^2
Where, P.E. = Elastic potential energy
k is the spring constant
delta x is the length of the stretched spring.
So, P.E.=0.5*180*0.51^2 = 23.41 N
potential energy stored in the spring at the position
stretched by 16.5 cm.
Since you know the spring constant k, 144 N/m and
the spring stretch from the equilibrium position x, is
16.5 cm, or 0.165, you find the spring's potential
1
energy from the equation PE
-ka?, which equals
2
1.96 Joules, or kg * m?/s? if you want SI units.
What will happen to the amount of force of an object if the mass of an object increases?
Answers
Answer: If you were too push a heavy item down a ramp, it would go faster than a lighter object because the heavier the object, the stronger the gravitational force.
Explanation:
What would happen if you touched an object that is the same temperature as your hand? Would any heat transfer happen? Explain your answer in 4-5 sentences.
Answers
Answer:
Explanation:
When two objects are in thermal equilibrium they are said to have the same temperature. During the process of reaching thermal equilibrium, heat, which is a form of energy, is transferred between the object
which means that it refers to transfer through a selectively permeable partition, the contact path.[1] For the relation of thermal equilibrium, the contact path is permeable only to heat; it does not permit the passage of matter or work; it is called a diathermal connection. According to Lieb and Yngvason, the essential meaning of the relation of thermal equilibrium includes that it is reflexive and symmetric. It is not included in the essential meaning whether it is or is not transitive. After discussing the semantics of the definition, they postulate a substantial physical axiom, that they call the "zeroth law of thermodynamics", that thermal equilibrium is a transitive relation. They comment that the equivalence classes of systems so established are called isotherms
plz dont be mad that i coppied it sounded so good so i wanted veryone to see it when they look bc i am dumb
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:
A driver is driving a 6371 kg lorry. After spotting a hazard, the driver applies the brakes. The lorry decelerates uniformly and comes to a stop 60 m after the brakes are applied. Estimate the braking force needed to stop the lorry.
Answers
Answer:
The estimated braking force needed to stop the lorry is zero, based on the given information and calculations. However, it's important to note that this result is likely not accurate, as some force is required to stop a moving object. It's possible that additional information or calculations are needed to obtain a more realistic estimate of the braking force.
Explanation:
To estimate the braking force needed to stop the lorry, we can use Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a).
In this case, the lorry decelerates uniformly, so the acceleration is constant. The initial velocity is assumed to be zero since the lorry comes to a stop. The final velocity is also zero. Therefore, we can use the equation:
Final velocity squared (vf^2) = Initial velocity squared (vi^2) + 2 * acceleration (a) * distance (d)
Since vi = 0 and vf = 0, the equation simplifies to:
0 = 0 + 2 * a * d
Solving for acceleration (a), we have:
2 * a * d = 0
a = 0
Since the acceleration is zero, it means that the braking force needed to stop the lorry is also zero. This is likely not an accurate result as some force is required to stop the lorry. It's possible that additional information or calculations are needed to accurately estimate the braking force.
The braking force required to stop a 6371 kg lorry after spotting a hazard and applying the brakes is what the question is asking for. The lorry decelerates uniformly and comes to a stop 60 meters after the brakes are applied.
The following steps will guide you on how to calculate the braking force:
Step 1: Determine the mass of the lorry which is 6371 kg. This will be denoted as m.
Step 2: Determine the distance travelled by the lorry, which is 60 m.
Step 3: Determine the time taken by the lorry to stop. This can be done by using the formula for uniform deceleration, which is a = (v-u)/t where v is the final velocity, u is the initial velocity and a is the uniform deceleration. Since the lorry comes to a stop, its final velocity is zero and its initial velocity is unknown.
However, we can assume that the lorry was initially travelling at a constant speed before spotting the hazard. Therefore, we can assume that the initial velocity was equal to the average velocity of the lorry before the brakes were applied.
This can be calculated using the formula v = d/t where d is the distance travelled and t is the time taken. The average velocity can therefore be calculated as follows: v = d/t = 60 m/t
Step 4: Rearrange the formula for uniform deceleration, a = (v-u)/t, to find u which is the initial velocity. Since the lorry comes to a stop, we know that v = 0.
Therefore: u = v - at where a is the uniform deceleration and t is the time taken to stop which is also equal to the time taken for the lorry to travel the distance of 60 meters. Substituting for v, we get: u = - at
Step 5: Calculate the acceleration of the lorry using the formula a = (v-u)/t. Since the final velocity is zero, we get: a = -u/t = -(-at)/t = a The acceleration is negative since the lorry is decelerating.
Step 6: Calculate the braking force using the formula F = ma where F is the braking force and m is the mass of the lorry. Therefore: F = ma = (-ma) since a is negative = (-6371 kg) (a) Therefore, the braking force required to stop the lorry is -6371a N where a is the uniform deceleration calculated in Step 5.
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Answers
A 3-kg rock falls for 5 sec. What is its speed after falling for 5 sec? Reminder - Acceleration due to gravity, on Earth = 9.8 m/s/s
Please answer asap
Answers
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.
What would happen to the digestion process if enzymes were not present
Answers
Answer: It would take 2.3 billion years for the biological reaction without the presence of enzymes. It’s because, without them, your body can’t break down foods so that nutrients can be fully absorbed. Every organ, every tissue, and every 100 trillion cells in our body rely upon the reaction of metabolic enzymes and their energy component.
Explanation:
I hope this helps
Without enzymes, the body would not be able to break down complex carbohydrates, proteins, and fats into their component molecules. This means that these nutrients would not be absorbed by the body and would be excreted as waste.
Additionally, the lack of enzymes would make it difficult for the body to digest and absorb vitamins and minerals. This could lead to malnutrition and other health problems over time.
Overall, the absence of enzymes from the digestive process would severely impair the body's ability to extract nutrients from food and could have negative consequences for overall health and well-being.
Which is the definition of the equator?
A. The equator is half of a sphere, which is used to describe one half of the Earth.
B. The equator is the imaginary line that divides the Earth into two equal parts. It is also used as the basis for the word’s time zones.
The equator is the imaginary line that divides the Earth into two equal parts. It is also used as the basis for the word’s time zones.
C. The equator is an imaginary horizontal line drawn on the Earth equally between the North and South poles.
D. The equator is half of a circle used to describe the northern half of the Earth.
Answers
Answer:
D. The equator is half of a circle used to describe the northern half of the Earth.
Explanation:
hope it helps
Answer: C
Explanation: The equator divides the earth into North and South pole
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.
A pendulum reaches a height of 0.3 m at the top of its swing. If the
bob has a mass of 5 kg, what is the potential energy at the top of its
swing?
Select one:
14.7)
7.35 J
0.45 J
1.5 J
Answers
Answer: A
Potential energy = 14.7 J
Explanation:
Given that the
Mass M = 5 kg
Height h = 0.3 m
Let us take acceleration due to gravity g = 9.81 m/s^2
Potential energy = mgh
Substitute all the parameters into the formula above
P.E = 5 × 9.81 × 0.3
P.E = 14.715 J
P.E = 14.7 J approximately
The correct option is therefore A
What is the acceleration of the car at segment C? 30 m/s2, –30 m/s2, 40 m/s2, or –40 m/s2
Answers
Answer:
wait i did this before
Explanation:
Answer:
A, C, E
Explanation:
Which phase of mitosis is shown in the illustration? prophase
metaphase
anaphase
telophase
Answers
The phase of mitosis is shown in the illustration - anaphase
AnaphaseThe third phase of the M-phase of cell division is anaphase. It is characterized by the event in which centromeres will split that separates the chromatid pair.
They are now called chromosomes. The significance of anaphase is the sharing of chromosomes to each of the chromatids.
Learn more about M-phase:https://brainly.com/question/12037936
What is a Box Camera
Answers
A box camera is a simple type of camera, the most common form being a cardboard or plastic box with a lens in one end and film at the other. They were sold in large numbers during the late 19th and early 20th centuries. The lenses are often single element designs meniscus fixed focus lens, or in better quality box cameras a doublet lens with minimal (if any) possible adjustments to the aperture or shutter speeds. Because of the inability to adjust focus, the small lens aperture and the low sensitivity of the sensitive materials available, these cameras work best in brightly lit day-lit scenes when the subject is within the hyperfocal distance for the lens and of subjects that move little during the exposure. Eventually, box cameras with photographic flash, shutter and aperture adjustment were introduced, allowing indoor photos.
Learn more about Pinhole Cameras
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1) Advantages of Pinhole Cameras https://brainly.in/question/2724158
2) Is working of camera is similar to that of pin hole camera?brainly.in/question/14388967?referrer=searchResults
3) Uses of pin hole camera?
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Mark BRAINLIEST
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Answer:
a simple box-shaped hand camera, typically lacking an adjustment for shutter speed.
What is friction? Help plsss. Most accurate one will get brainliest!
Answers
Answer:
Explanation:
Friction is a force which opposes the relative motion of two objects in contact.
Answer: The resistance that one surface or object encounters when moving over another
Explanation: The action of one surface or object rubbing against one another.
Example: Sally rubbed the two sticks TOGETHER that is an example of friction.
Remembering the Battle of Bunker Hill what did general Harry and his troops do
Answers
A white blood cell that destroys pathogens by engulfing them and breaking them down is called please help
A Antigen
B B-cell
C Antibody
D Phagocyte
Answers
Answer: D
Explanation: Its a type of white blood cell that moves by amoeboid
Homework: What happens when you kick the bottom of the ball in soccer?
Answers
Answer:
It will move due to force.
Explanation:
Answer: You hurt your Toe :))
Explanation:
2. hlep ={
Which of these are examples of negative tropism? (Select all that apply.)
a plant’s stem growing upward out of the ground due to gravitropism
a plant’s leaves growing away from the sunlight due to phototropism
a plant’s roots growing toward a water source due to hydrotropism
a plant’s roots growing away from a water source due to hydrotropism
a plant’s leaves growing toward the direction of the sun due to phototropism
a plant’s roots growing down into the soil due to gravitropism
Answers
Answer:
d
Explanation:
Help please answer my previous and question and this one! Random answers and links will be reported.
Heat can be transferred from one object to another by ______.
A Conduction
B Translation
C Condition
D Restriction
Answers
Heat can be transferred in three ways: by conduction, convection, and by radiation. Only conduction is on the options so it would be A
Conduction is the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Who likes horses? i mean LOVES Horses?
Answers
PLEASE HELP ASAP BEST ANSWER WILL BE MARKED BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The total mass of a pizza is 160 grams. When the pizza is cut into pieces, what parts equal the whole?
10 grams, 30 grams, 40 grams, 40 grams, and 30 grams
25 grams, 25 grams, 25 grams, 25 grams, and 25 grams
30 grams, 30 grams, 30 grams, 30 grams, 40 grams
50 grams, 30 grams, 30 grams, 30 grams, and 10 grams
Answers
Answer:
It is the 3 one
Explanation:
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Now that you have done
some research, write a
hypothesis based on the
relationship between zinnias
and the sun. Write it as an
“If ________, then__________”
statement.
Answers
Answer:
If zinnias are exposed to direct sunlight for a sufficient amount of time each day, then they will grow and bloom more successfully compared to those that do not receive adequate sunlight.
Hope my answer helps you ✌️
Mark BRAINLIEST
i have used it before but i dont know what it means WTH DOES AI MEAN
Answers
Answer:
It stands for Artificial Intelligence
Explanation:
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