a. The magnitude of the acceleration is 30 m/s²
b. The net force on the block is 15 N and directed towards the negative x axis.
a. The acceleration of the block
The magnitude of the acceleration is 30 m/s²
The acceleration of the block is given by a = -ω²x where
ω = angular speed of block = k/m where k = spring constant = 50 N/m and m = mass of block = 0.5 kg and x = position of block = 0.3 mSo, a = -ω²x
a = -kx/m
Substituting the values of the variables into the equation, we have
a = - 50 N/m × 0.3 m/0.5 kg
a = -15 N/0.5 kg
a = -30 N/kg
a = -30 m/s²
So, the magnitude of the acceleration is 30 m/s²
b. The net force on the block
The net force on the block is 15 N and directed towards the negative x axis.
The net force on the block is given by F = ma where
m = mass of block = 0.5 kg and a = acceleration of block = -30 m/s²So, F = ma
F = 0.5 kg × -30 m/s²
F = -15 kgm/s²
F = -15 N
We see that the force is negative.
So, the net force on the block is 15 N and directed towards the negative x axis.
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While visiting white sands national park, you grab a piece of cardboard box and slide down a large sand dune from the top of the dune to the bottom of the dune. Friction is present; air resistance can be ignored. Which statement correctly describes the change in energy as you slide from the top of the dune to the bottom of the dune on the cardboard box?.
The statement that describes the change in energy as one slide from the top is the decrease in the gravitational potential energy is equal to the increase in kinetic energy.
What is Kinetic energy?This is known to be a kind of energy that is seen in an object or a particle due to its motion.
Based on the above scenario, As the block goes or slides down, its potential energy is known to lower or decreases and its velocity is said to increases and therefore, it's kinetic energy is increasing.
See options below
O The decrease in the gravitational potential energy is equal to the increase in kinetic energy.
O The sum of the kinetic energy and the gravitational potential energy changes by an amount equal to the energy dissipated by friction.
The gravitational potential energy and the kinetic energy must both decrease.
The gravitational potential energy decreases, and the kinetic energy is constant.
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In the context of the passage as a whole, the phrase "chief charm" (line 1) is best interpreted to mean.
The inference deduced regarding the phrase "chief charm" is best interpreted as unsurpassed elegance.
What is an inference?It should be noted that an inference simply means the conclusion that can be deduced from the evidence given.
In this case, in the context of the passage as a whole, the phrase "chief charm" is best interpreted to mean an unsurpassed elegance.
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The inference about the given passage phrase "chief charm" is best interpreted to be unsurpassed elegance.
What is an inference?An Inference is known to be the way of using observation and framework to reach a good and logical endpoint or conclusion.
Note that the phrase of "chief charm" was used by the context of the passage as a whorl to connote a form of unsurpassed elegance of the people or person involved.
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A bottle of ketchup holds 0. 946 liters. How many milliliters does it hold?.
Answer:
a bottle of ketchup
Explanation:
A company reported total stockholders' equity of $170,000 on its balance sheet dated december 31, 2018. During the year ended december 31, 2019, the company reported net income of $20,000, declared and paid a cash dividend of $4,000, declared and distributed a 10% stock dividend with a $5,000 total market value, and issued additional common stock for $40,000. What is total stockholders' equity as of december 31, 2019?
The total stockholders' equity as of December 31, 2019 is $226,000
What is stockholders' equity?Shareholders' equity is what show how much the owners of a company have invested in the business over a period of time.
Computation of ‘December 31, 2019 Stockholder’s Equity’ is given below;
= Stockholder’s Equity + (2019, Net Income – 2019, Cash Dividends Declarations) + 2019, Common Stock issued
= 170,000 + ($20,000 - $4,000) + $40,000
= $226,000
Hence, the total stockholders' equity as of December 31, 2019 is $226,000
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A 1,000-kilogram car traveling due east at 15 meters per second is hit from behind and receives a forward impulse of 6,000 newton-seconds. What would the new momentum of the system be after it experiences this impulse?.
Answer:
PLEASE Mark Me AS BRAINLIEST
Explanation:
distance : 1000
Time: 15m/s
total will be : 15000m/s
15000÷6000 will be 2.5m/s
this is the result
The elements in a star can be determined by analyzing the star's spectrum. Which statement explains why no two elements have the same spectrum?
Answer:
Each element has a unique arrangement of electrons.
Explanation:
i just took the test
Which is a key qualification for someone who assembles scientific engineering products?.
Answer:
ke y to the city
Explanation:
it is the only key
A circular disc has a diameter of 24 centimeters. What is the area of the disc?.
Answer:
452.39 I think...
Facts
Answer: D. 144πcm2
Explanation:
First you need to find the radius by deviding the diameter (24) by 2 wich is 12. Next, square 12 wich is 144.
In formula this is 144πcm2
Explain the process to solve the equation 1/4x=-5/8.
Answer:
[tex]x=-\frac{5}{2}[/tex]
Explanation:
Given the following question:
[tex]\frac{1}{4} x=-\frac{5}{8}[/tex]
To find the value of x we have to multiply both sides by 1/4.
[tex]\frac{1}{4} x=-\frac{5}{8}[/tex]
[tex]\frac{1}{4} x\div\frac{1}{4} =x[/tex]
[tex]\frac{1}{4} x=-\frac{5}{8}=-\frac{5}{8} \times\frac{1}{4} =-\frac{5}{2}[/tex]
[tex]x=-\frac{5}{2}[/tex]
Hope this helps.
Identify one piece of evidence that moser uses in the passage to support his claim regarding nationalist perceptions of liberal economic policies.
One piece of evidence that moser uses in the passage to support his claim regarding nationalists is; That the US government had to develop protectionist policies to tackle the attack on economic liberalism
What is the piece of evidence?This question is taken from an article written by John.E.Moser about how global commerce which was a very important characteristic of economic liberalism, was severely under attack and how the crisis spread through to other countries.
Finally, The U.S government made use of protectionist policies that helped in safeguarding its economy, and other governments imposed retaliatory tariffs which made the crisis worse.
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A 72° sector in a circle has an area of 16. 4π yd². What is the area of the circle? use 3. 14 for pi. Enter your answer as a decimal in the box.
Answer:
257.48
I took the quiz
Luis repairs air conditioners. He earned a certificate in 6 months and paid for it with one loan. He earns a good salary now and will pay off his loan in two years. What kind of return on investment (roi) does luis demonstrate?
The kind of ROI Luis demonstrates is : Positive ROI
Positive ROI
A positive ROI is defined as when the cost of a financial decision/step is lower than the gain of a financial decision.
Luis takes a loan to help him earn a certificate, the certificate he earns has helped him earn a good salary job which he can use to repay the loan.
Therefore in the long term Luis will have a positive return on investment on his financial decision.
Hence we can conclude that the kind of ROI Luis demonstrates is Positive ROI.
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A marketing company wants to estimate the proportion of consumers.
Answer:
what's the ❓❓❓ I
question
The proof for the power property of logarithms appears in the table with an expression missing. Step reason mc027-1. Jpg given mc027-2. Jpg substitution properties of exponents mc027-3. Jpg logarithm property mc027-4. Jpg mc027-5. Jpg substitution mc027-6. Jpg commutative property of multiplication which expression is missing from the proof?.
Proofs are used to confirm or disprove mathematical statements
The missing expression in the proof is : [tex]\log_b((b^{xy})[/tex]
How to complete the proofFrom the question, the first two steps are:
[tex]\log_b(M^y)[/tex]
[tex]\log_b((b^x)^y)[/tex]
By the properties of exponents, we have:
[tex]\log_b((b^{xy})[/tex]
The above expression represents the missing expression in the proof of the logarithmic expression
Hence, the missing expression is : [tex]\log_b((b^{xy})[/tex]
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Answer:
a
Explanation:
The number of credits awarded for the CLEP exam is determined by:
A. the high school.
B. the ACT
c. the College Board.
D. the college or university.
Answer: The college or university
Explanation:
The number of credits awarded for the CLEP exam is determined by the College Board.
What is College Board?In order to increase access to higher education, the College Entrance Examination Board (CEEB), a nonprofit American organization, was founded in December 1899.
The College Board manages a membership association of institutions with nearly 6,000 schools, colleges, universities, and other educational organizations, despite the fact that it is not an association of colleges.
To encourage college readiness and as a part of the college admissions process, K–12 and post–secondary educational institutions use standardized examinations and curriculum created and administered by The College Board.
Therefore, The number of credits awarded for the CLEP exam is determined by the College Board.
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What is the difference between an introduced and an invasive species?(1 point).
Answer:
An introduced species is not necessarily harmful to the environment; an invasive species has a negative effect.
Explanation:
I hope this helps you!
Clarify why is it important to present your answers according to the marks allocated to assessment question.
It is necessary to present your answers according to the marks allocated to assessment question so as to get awarded full marks
Assessment and Presentation of answers.Assessment is an integral part of the teaching that shows if the learning process has been achieved to estimate the student’s ability to demonstrate full Knowlege of the lesson or subject taught.
Examiners set questions and allocate marks according to how they expect the questions to appear.
it is important that students present answers accordingly so as not to miss on the full marks.
for example. if a questions asks "Explain the processes of water purification" with 30marks allocated.Upon answering, and a student decides to list instead of explaining, Then he or she will not be awarded the full marks.
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What is the purpose of the outside source used in this excerpt? to illustrate japan’s isolation in the 1800s to educate readers about japanese screens to introduce readers to a musical by stephen sondheim to argue against american aggressiveness
The purpose of the outside source used in this excerpt is to illustrate Japan's isolation in the 1800s.
What was the Japan's isolation in the 1800s about?In the 17th- 19th century, the Japanese government was said to have adopted a policy that isolated the whole country from the outside world.
This long timeframe of national isolation is known as the sakoku. In this time, no Japanese is able to leave the country or they will have to face the penalty of death. Here, only some few foreign nationals were able to t trade with Japan.
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Answer:
the answer to your question is
A. to illustrate Japan's isolation in the 1800s
Explanation:
brainliest pls?
Which of the following best explains why the painting was seen as a challenge to social conventions when it was painted?
The painting was seen as a challenge to social conventions because women were rarely the subject of European art during the period.
What is a painting?A painting can be defined as an artwork that is typically used by an artist to express and depict an idea or thought about a place, thing, people, etc.
In this scenario, the reason which best explains why the particular painting was considered or seen as a challenge to social conventions is because women were rarely the subject of European art during the period.
However, paintings of women were later embraced as a tool to influence social changes when female artist began to draw and paint.
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Answer:
The correct answer is number B)
Explanation: )
A food worker needs to thaw a package of ground pork
Answer:
Put it in a clean sink w hike running COLD water on it until thawed
What would happen militarily if there was an alien invasion?.
A team of 17 softball players need to choose three players.
The introduction of the cotton gin meant that enslaved workers on southern plantations no longer had to weave cotton cloth. Plant cotton seeds. Harvest cotton plants. Separate seeds from cotton.
Answer:
D. Separate seeds from cotton
Explanation:
Edge. 2022. Good luck!
Answer:
D) Pick cotton seeds
Explanation:
it's right
What is the best definition of the word emulate in this sentence? the cashier was ambitious and wanted to emulate the achievements of her manager, so she asked questions to find out how the manager had reached his position of leadership
Answer:
attempt to equal
Explanation:
i took the test :)!
What is the total number of grams of naoh formula mass 40
Answer:
8 gram
Explanation:
in case of NaOH, normality=molarity
so normality=molarity×acidity or basicity(in case of NaOH it's 1)
then
weight of NaOH required = volume in ml × equivalent weight × normality / 1000
so
1000× 40× 0.2/1000
=8 gram
When graphing motion on a distance-time graph, _____ is on the vertical axis and______ is on the horizontal axis.
Answer:
distance
time
Explanation:
What are the therapeutic effects of the said activity
The therapeutic effects of physical exercise include the following:
Decreased blood pressureMuscle developmentWhat is Exercise?This comprises of physical activities that involves movement of parts of the body with a corresponding increase in heart rate.
Exercise is therapeutic as it helps to lower blood pressure in individuals with risk of hypertension and also for muscle development.
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Sneha is, by nature, a nervous person. She has been having a hard time concentrating and seeks the help of a counselor, amanda. Amanda begins by being very warm. She does not direct sneha with regards to what she should talk about. Instead, amanda primarily focuses on empathizing with sneha and accepting her for who she is. Which therapeutic orientation is amanda most likely using?.
Client-centered therapy is a form of therapeutic orientation based on acceptance, therapist congruence (authenticity), and empathic understanding.
What is Client-centered therapy?It is a psychological theory applied in therapeutic work that deals with the ways in which people consciously perceive themselves.
Characteristics of Client-centered therapyThe therapist accepts the client without judging her actions or thoughts, allowing the client to perceive her experiences without the distortion of everyday relationships.Empathy is used, which implies the ability to enter the client's perspective and to perceive the world from it, as well as to experience the client's feelings.Therefore, we can conclude that Client-centered therapy is based on the therapist's understanding, which makes it easier for the client to accept herself and her experiences.
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Which statement is not true about the figure at the right.
Answer:
wdym is there any pictures?
The locally linear approximation of the differentiable function f at x=3 is used to approximate the value of f(3. 2). The approximation at x=3. 2 is an overestimate of the corresponding function value at x=3. 2. Which of the following could be the graph of f ?
The linear approximation to f(x) at x = 3 is
L(x) = f(3) + f'(3) (x - 3)
so that
f(3.2) ≈ L(3.2) = f(3) + f'(3) (3.2 - 3)
f(3.2) ≈ f(3) + 0.2 f'(3)
The approximation is an overestimate, which means
f(3.2) - f(3) > 0
so that
f(3.2) ≈ f(3) + 0.2 f'(3) ⇒ f'(3) ≈ (f(3.2) - f(3))/0.2 > 0
and this in turn mean f(x) is increasing as x grows larger than 3. Pick the graph that shows an increasing function.
