A 1,000 kg truck moving at 10 m/s runs into a concrete wall. it takes 0. 5 seconds for the truck to completely stop. what is the magnitude of force exerted on the truck during the collision?.
The amount of force applied to the truck during the collision is
F = ma= 1000 N.
The truck's mass is m = 100kg
The truck's initial velocity vi = 10m/s
The truck's final velocity, v f= 0
The time interval t = 1.0s
Then the acceleration a = -vi/t = -10m/s
As a result, the magnitude of force applied to the truck is
F = ma
= (100)(10)
F= 1000 N
Magnitude is a scalar quantity it simply refers to the size of something. Scalars are quantities with only one magnitude, such as mass, volume, density, and distance. Force, velocity, and field now have magnitude (size) and direction. These are vector variables.
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Which is an accurate statement about the different types of radiation emitted by the sun.
Answer:
Radiation with the shortest wavelengths is most likely to cause wide variation in Total Solar Irradiance. Radiation with the longest wavelengths is emitted steadily and constantly from the sun.
Explanation:
Read the sentence. Once the scientist completed to assemble the components, she tested her new device to see if it performed as expected. What is the best word to replace the infinitive in the sentence? assembling assemble assembled assembly
Answer:
Assemble
Explanation:
The others dont fit the sentence and its tense
In the sentence, the best word to replace the infinitive in the sentence is assembling. The correct option is a.
What is grammar?Grammar is generally understood to be a set of rules that enable us to structure sentences. It covers a variety of language-related topics, such as: Parts of speech (verbs, adjectives, nouns, adverbs, prepositions, conjunctions, modifiers, etc.) Clauses (e.g. independent, dependent, compound) (e.g. independent, dependent, compound).
A basic sentence typically consists of a subject, a verb, and maybe an object and modifiers. It only has one independent clause, though. After putting the parts together, the scientist tested her creation to see if it worked as intended.
Therefore, the correct option is a, assembling.
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how is pixar one of the best production group in the world but only made 22 movies
A problem associated with path-goal theory is that.
Answer:
A. it has received less research support than other contingency leadership models.
Explanation:
The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 92 pounds. A random sample of 90 newly manufactured cables has a mean breaking strength of 1700 pounds. Based on this sample, find a 95% confidence interval for the true mean breaking strength of all cables produced by this manufacturer. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place
Answer:
To find the 95% confidence interval for the true mean breaking strength of all cables produced by the manufacturer, we can use the formula:
Confidence Interval = Sample Mean ± (Critical Value * Standard Error)
First, let's calculate the standard error, which is the standard deviation divided by the square root of the sample size:
Standard Error = Standard Deviation / √(Sample Size)
= 92 / √(90)
≈ 9.685
Next, we need to determine the critical value corresponding to a 95% confidence level. Since the sample size is large (n > 30), we can use the z-table. The z-value for a 95% confidence level is approximately 1.96.
Now we can calculate the confidence interval:
Confidence Interval = Sample Mean ± (Critical Value * Standard Error)
= 1700 ± (1.96 * 9.685)
Lower Limit = 1700 - (1.96 * 9.685)
≈ 1679.69
Upper Limit = 1700 + (1.96 * 9.685)
≈ 1720.31
Therefore, the 95% confidence interval for the true mean breaking strength of all cables produced by this manufacturer is approximately (1679.7, 1720.3). The lower limit is 1679.7 pounds, and the upper limit is 1720.3 pounds.
What triggers a emotion in the brian?
Explanation:
Limbic cortex. This part contains two structures, the cingulate gyrus and the parahippocampal gyrus.
Answer:
the optic nerve triggers the emotion in the brain
If you wanted too find the jet stream where would you go
Answer:i honestly don’t know
Explanation:
Answer:
i met u in califonya you said you loved him in gorgia your herat is frozen over in supernova
Explanation:
What is the perimeter of parallelogram wxyz? units units units units.
Answer:
D
Explanation:
because I just got it right, trust me
Answer:
D
Explanation:
I just took the test on edge
Can someone help me get kylerdagaminggod to reply to me thanks :)
Answer:
whos that Imao
A country that creates a subsidy for domestic goods is most likely to experience which benefit
Answer:
C.
Domestic companies will be better able to compete against foreign businesses.
Explanation:
a p e x
If Jorge wanted to measure the distance between the Sun and the closest star to it, which unit should he use?
kilometer
light year
astronomical unit
meter
Note that If Jorge wanted to measure the distance between the Sun and the closest star to it, the unit to be used is "Light Years" (Option B)
What is the rationale for the above response?If Jorge wanted to measure the distance between the Sun and the closest star to it, he should use the unit "light year." Light year is a unit of measurement commonly used in astronomy to express the distance between stars and galaxies.
One light year is the distance that light travels in one year, which is approximately 9.46 trillion kilometers or 5.88 trillion miles. The distance between the Sun and the closest star to it, Proxima Centauri, is about 4.24 light years.
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If you could change one rule a school, what would it be?
Answer: I personally would change less school hours
Explanation:
:)
Answer:
Homework only on Wednesday's and due Friday.
anyone has last minute tips for the SAT on saturday?
Answer:
Start early. We know that ideally you'd like all the time in the world to prepare for a test, but that's not a luxury high school students have. ...
Study with Official SAT Practice on Khan Academy. ...
Take a full-length practice test. ...
Pay attention in class. ...
Know what to expect on test day.
Explanation:
Which of the following demonstrates how Earth systems interact over large periods of time and different-sized spaces?
Plate tectonics is an example that demonstrates how Earth systems interact over large periods of time and different-sized spaces. (Option A)
How is this so?It involves the movement and interaction of Earth's lithospheric plates,which cover the planet's surface.
Plate tectonics influences various geological processes, such as the formation of mountains,earthquakes, and volcanic activity.
These interactions occur over long periods,shaping the Earth's surface and affecting regions across different spatial scales, from local to global.
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Full Question:
Although part of your question is missing, you might be referring to this full question:
Which of the following demonstrates how Earth systems interact over large periods of time and different-sized spaces?
A) Plate tectonics
B) Geographic Entities
C) Astronomy
D) Biochemical cycles
S2
Which device is used to determine the volume of a liquid?
А
anemometer
B
graduated cylinder
С
test tube
D
thermometer
how can we find distance between x intercepts
Answer: count units between zeros
Explanation:
meaning, say one x1 = (-4,0) and x2 = (3,0) count from -4 all the way to 3 and see how many units it took (7units) thats how u find the distnace between the x intercepts
A 0. 2 kg rubber ball is dropped from the window of a building.
Answer:
200grams rubber ball is dropped from the window of a building
explain physical changes
Answer:
A physical change is a change to the physical—as opposed to chemical—properties of a substance. They are usually reversible. The physical properties of a substance include such characteristics as shape (volume and size), color, texture, flexibility, density, and mass.
Explanation:
Examples of physical change include changes in the size or shape of matter. Some of the processes that cause physical changes include cutting, bending, dissolving, freezing, boiling, and melting.
Two construction cranes are used to lift identical 1200-kilogram loads of bricks the same vertical distance. The first crane lifts the bricks in 20. Seconds and the second crane lifts the bricks in 40. Seconds. Compared to the power developed by the first crane, the power developed by the second crane is.
The power developed by the second crane is half that of the first crane.
PowerPower is the ratio of the amount of energy to the total time. It is given by:
Power = Energy / time
Energy = mass * g * h
Let g represent the acceleration due to gravity and h the vertical height, for the first crane:
Power = 1200gh/20
For the second crane:
Power = 1200gh/40
Ratio of power in second crane to that of first = (1200gh/40) / (1200gh/20) = 0.5
The power developed by the second crane is half that of the first crane.
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Write a formula what does begin with?
Answer:the beginning of a formula is a = sign
Explanation: hoped that helped and do great on your SAT
Describe the transformation
F(×+5)
Answer: You subtract 5 from each x coordinate, and plot it on the graph. Or in other terms move each x coordinate 5 to the left.
Explanation: For example if i take one x coordinate and substitute it into f(x+5). In this explanation ill use (6,3). The transformation would change it to (1,3). Because we subtract 5 from the x coordinate.
What is a benefit of physical activity and fitness?
O they help you improve your fitness to be physically fit
O they make you sore
O they put stress on your body
O they make your heart rate go down
Answer:
answer is 1
Explanation:
its very obvious
Candice is examining a cell under a microscope. She has identified a cell wall, a nucleus, and a chloroplast.
-Cell wall
Nucleus
Chloroplast
What type of organism does this cell most likely belong to?
A. a plant
B. a fungus
C. an animal
D. a bacterium
20ax - x= 5 in the equation above, a is a constant if the equation has no solution, what is the value of a ?
A spherical balloon is inflating with helium at a rate of. How fast is the balloon's radius increasing at the instant the radius is ft? how fast is the surface area increasing?.
Using implicit differentiation, and considering that the inflation rate is of 200 cubic feet per minute and the radius is of 5 feet, it is found that:
The radius is increasing at a rate of 0.6366 feet per minute.The surface area is changing at a rate of 80 feet squared per minute.The volume of an sphere of radius r is given by:
\(V = \frac{4\pi r^3}{3}\)
Applying implicit differentiation, the rate of change is given by:
\(\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}\)
For this problem:
Inflation rate of 200 cubic feet per minute, hence \(\frac{dV}{dt} = 200\)Radius is of 5 feet, hence \(r = 5\)Then:
\(\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}\)
\(200 = 4\pi (5)^2\frac{dr}{dt}\)
\(\frac{dr}{dt} = \frac{200}{100\pi}\)
\(\frac{dr}{dt} = 0.6366\)
The radius is increasing at a rate of 0.6366 feet per minute.
The surface area is:
\(S = 4\pi r^2\)
Hence, the rate of change is:
\(\frac{dS}{dt} = 8\pi r\frac{dr}{dt}\)
Hence:
\(\frac{dS}{dt} = 8\pi (5)(0.6366) = 80\)
The surface area is changing at a rate of 80 feet squared per minute.
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What is a goal of the mission of the James Webb Space Telescope?
to find evidence of life on Mars
to study how solar flares of our sun affect Earth
to find evidence of events in the history of the universe
to study how Venus and Earth diverged as planets
(33 points)
Answer:
to find evidence of events in the history of the universe
Explanation:
A goal of the mission of the James Webb Space Telescope is to find evidence of events in the history of the universe.
The correct answer to the given question is option C.
The James Webb Space Telescope has several objectives and goals, with the primary aim of its mission being to identify the events that led to the formation of the universe.
In addition, it aims to collect data on various galaxies, stars, and planets that will help scientists determine the evolution of these entities.The primary objective of the James Webb Space Telescope is to identify the early universe's formation by collecting data on the stars, galaxies, and planets.
It is also aimed at gathering data on various celestial objects such as exoplanets and black holes.The James Webb Space Telescope aims to collect data that will allow astronomers to determine the events that led to the formation of the universe.
It will collect data on distant galaxies, stars, and planets to provide insights into the evolution of these entities. The telescope will have advanced capabilities such as infrared vision that will allow it to collect data on some of the universe's earliest structures.
Additionally, the James Webb Space Telescope aims to collect data on exoplanets, which could provide insights into how life in the universe developed. The telescope's ability to identify the atmospheric composition of exoplanets will be crucial in determining their habitability.
Ultimately, the telescope's primary goal is to contribute to the advancement of our understanding of the universe.
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read this sentence from the article.i think it is vital to consider the scientific definition of life, however, and to take the recent excitement with a grain of salt.explain the meaning of the phrase “with a grain of salt” as it is used in the sentence. use details from the article to support your answer.
Poetry best communicates ideas and topics. Through poetry, deep and intense thoughts and emotions can be conveyed directly to the reader. In drama, the audience can only watch the actions and outward displays of emotion of a character. However, in poetry, the audience is able to see directly into the author's mind and fully grasp their meaning. It is clear that poetry is the more direct, moving, and effective way to communicate.
Answer:
Poetry is a vast subject with a rich history. Here are some interesting facts about poetry:
One of the most popular forms of writing short poems is the haiku.
The longest poem in the world is the Mahabharata, an Indian epic poem dating from the 4th century BC or earlier, with about 1.8 million words.
The oldest surviving epic poem is the Epic of Gilgamesh, which dates from the 3rd millennium BC in Sumer (now Iraq).
Poetry can be as short as a few words or as long as a book.
L 8.1.2 Exam: Semester Exam
Which statement best summarizes the following portion of the Declaration of
Independence?
We hold these truths to be self-evident, that all men are
created equal, that they are endowed by their Creator with
certain unalienable Rights, that among these are Life,
Liberty and the pursuit of Happiness.. That to secure
these rights, Governments are instituted among Men,
deriving their just powers from the consent of the
governed, That whenever any Form of Government
becomes destructive of these ends, it is the Right of the
People to alter or to abolish it, and to institute new
Government, laying its foundation on such principles and
organizing its powers in such form, as to them shall seem
most likely to effect their Safety and Happiness.
-
O A. Governments tend to interfere with people's rights.
B. All human beings are equal and should have an equal share of the
land.
ty
O
C. People have certain rights and it is the role of government to
protect those rights.
The statement that best summarizes the following portion of the Declaration of Independence is "People have certain rights and it is the role of government to protect those rights." (Option C)
How is this so?The statement emphasizes that all individuals are inherently equal and possess unalienablerights such as life, liberty, and the pursuit of happiness.
It asserts that governments are established to safeguard these rights and derive their power from the consent of the governed.
If a government fails to upholdthese principles, the people have the right to change or replace it with a new government that prioritizes their safety and well-being.
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