At what position does the mass have the greatest acceleration?
(a.)-A
(6.)-42A
[(c.) 0
(d.)+12A
(e.)+A
Answers
At point +A, mass accelerates the most. When a mass attached to a spring is stretched and released, it undergoes simple harmonic motion, which is a type of oscillatory motion. The motion is periodic and can be described by a sine or cosine function. Option E is correct.
In simple harmonic motion, the restoring force acting on the mass is directly proportional to the displacement from the equilibrium position. The direction of the restoring force is opposite to the direction of the displacement. This results in the mass oscillating back and forth around the equilibrium position.
At the equilibrium position (position 0), the restoring force is zero and the acceleration of the mass is also zero. At this point, the velocity of the mass is at its maximum and the kinetic energy is also at its maximum.
As the mass moves away from the equilibrium position, the restoring force increases, causing the mass to decelerate and eventually come to a stop at the point of maximum displacement (position +A). At this point, the velocity of the mass is zero, and its kinetic energy is at its minimum.
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Related Questions
PLSS HELP NOWW!!!!!!(01.01 LC) Which is an example of the force of attraction between two objects that have mass? (2 points) a Magnetism b Gravity c Solar energy d Electricity
Answers
Answer:
pretty sure it is gravity
Answer:
Electricity
Explanation:
At which position is the northern hemisphere experiencing winter?
The image includes the position and tilt of Earth in its orbit around the sun. Earth is tilted away from the sun in position A. In position B, the sun shines evenly on Earth from pole to pole. Earth is tilted toward the sun in position C. In position D, the sun shines evenly on Earth from pole to pole.
Public Domain
Point A
Point B
Point C
Point D
Answers
When the Earth has tilted away from the sun, as seen in position A in the figure, the northern hemisphere experiences winter.
The northern hemisphere is tilted away from the sun at this position, receiving less direct sunshine and experiencing cooler temperatures.
In contrast, the southern hemisphere is inclined towards the sun and experiencing summer.
The Northern Hemisphere is the portion of the globe north of the Equator. It comprises the majority of North America, Europe, Asia, and parts of Africa. Because of the tilt of the Earth's axis relative to the plane of its orbit around the sun, the Northern Hemisphere experiences various seasons throughout the year.
Summer occurs when the Northern Hemisphere is oriented towards the sun, while winter occurs when it is slanted away from the sun. Spring and fall are the two seasons that fall between the extremes of summer and winter.
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suppose that a cannonball is shot at some speed from the ground at a certain angle from the horizontal. assuming there is no friction, show that the optimal angle to maximize the distance is 45 degrees. to do this, do a picture. decompose the velocity vector into horizontal and vertical components (in terms of the sine and cosine of and the speed ). then consider the horizontal and vertical positions of the ball separately. for the horizontal position, find the distance traveled in time with constant speed. for the vertical, you need to consider the initial speed and the acceleration of gravity, as in section 4.9.
Answers
The optimal angle to maximize the distance for a cannonball shot from the ground with no friction is 45 degrees.
Let's consider a cannonball shot from the ground at an angle θ from the horizontal with a speed v. We can decompose the initial velocity vector into its horizontal and vertical components.
The horizontal component of the velocity (v_x) is given by:
v_x = v * cos(θ)
The vertical component of the velocity (v_y) is given by:
v_y = v * sin(θ)
For the horizontal position, the cannonball will travel with a constant speed (v_x) horizontally for the entire duration of its flight. The time of flight can be calculated by considering the vertical motion.
In the vertical direction, the ball experiences a downward acceleration due to gravity, which is approximately 9.8 m/s². The initial vertical velocity (v_y) and the acceleration (g) allow us to calculate the time of flight (t) using the following equation:
v_y = g * t
Solving for t:
t = v_y / g
Now, we can find the horizontal distance traveled by the cannonball during the time of flight. The distance traveled (d) is given by the horizontal velocity (v_x) multiplied by the time of flight (t):
d = v_x * t
= (v * cos(θ)) * (v * sin(θ) / g) [substituting v_x and t]
To find the angle θ that maximizes the distance, we need to differentiate the distance equation with respect to θ and set the derivative equal to zero:
d' / dθ = 0
Differentiating the distance equation with respect to θ:
d' / dθ = (v / g) * [(cos(θ))^2 - (sin(θ))^2]
Setting d' / dθ equal to zero:
(v / g) * [(cos(θ))^2 - (sin(θ))^2] = 0
Since (cos(θ))^2 - (sin(θ))^2 = cos(2θ), we have:
(v / g) * cos(2θ) = 0
This equation is satisfied when cos(2θ) = 0. Solving for θ:
2θ = π/2
θ = π/4
Therefore, the optimal angle to maximize the distance is θ = 45 degrees.
The optimal angle to maximize the distance traveled by a cannonball shot from the ground, assuming no friction, is 45 degrees from the horizontal. This means that firing the cannonball at an angle of 45 degrees will result in the maximum horizontal range.
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A roller coaster goes from 10 m/s to 30 m/s in 5 seconds. What is it's acceleration?
Vf-Vi/T
Answers
=(30-10)/5
= 4m/s2
Hope this helps
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An airplane flies from Houston to New York City, which is a distance of 2280 kilometers. The trip takes 3.5 hours. What was the plane's average speed? Round to the nearest whole number.
a)603 km/hr
b)651 km/hr
c)760 km/hr
d)813 km/hr
Answers
Answer:
a)603 km/hr
Explanation:
The starting velocity was 0 m/s, and the final velocity was -7.68 m/s. Based on this, what was the average velocity of the rock
Answers
Formula: v = s+f/2
v = average velocity
s = starting velocity
f = final velocity
Use what we are given and solve.
v = 0+(-7.68)/2
v = -7.68/2
v = -3.84
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What is the cutoff (threshold) frequency for a metal surface that has a work function of 5.42 eV? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s)
A) 1.31 × 1015 Hz
B) 2.01 × 1015 Hz
C) 3.01 × 1015 Hz
D) 5.02 × 1015 Hz
E) 6.04 × 1015 Hz
Answers
Explanation:
The cutoff (threshold) frequency for a metal surface that has a work function of 5.42 eV is given by the formula f0 = (φ/h) × (1/e),
where φ is the work function of the metal, h is the Planck's constant, and e is the charge of an electron.1
eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ sHere,φ = 5.42 eV = 5.42 × 1.60 × 10-19 Jh = 6.626 × 10-34 J ∙ se = 1.60 × 10-19 C
Thus, the cutoff frequency is:f0 = (φ/h) × (1/e) = (5.42 × 1.60 × 10-19 J)/(6.626 × 10-34 J ∙ s) × (1/1.60 × 10-19 C)≈ 1.31 × 1015 Hz
Therefore, the cutoff (threshold) frequency for a metal surface that has a work function of 5.42 eV is 1.31 × 1015 Hz. The answer is A) 1.31 × 1015 Hz.
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Two students are running in a race. Student 1 has more kinetic energy than student 2. Who will win the race?
Answers
More kinetic energy= faster
What should be done to reduce refrigerant loss from a purge unit on a R-123 chiller
adding heat with circulated hot water or heating blankets
a leak test and repair the chiller.
Use the charge stated on the equipment nameplate
Answers
To reduce refrigerant loss from a purge unit on a R-123 chiller, the first step is to perform a leak test on the chiller to identify any leaks that may be present. Once the leaks are identified, they should be repaired immediately to prevent further refrigerant loss. It is important to use the charge stated on the equipment nameplate to ensure the chiller is operating at optimal capacity.
In addition to leak testing and repairs, regular maintenance of the chiller can help prevent refrigerant loss. This includes cleaning the chiller coils and replacing any worn or damaged components. Properly training personnel on the operation and maintenance of the chiller can also help reduce refrigerant loss by ensuring that any issues are identified and addressed promptly.
Finally, it is important to properly dispose of any refrigerant that is removed from the chiller during repairs or maintenance. This can be done by using a certified refrigerant reclaimer or disposal service, which will safely recover and recycle or dispose of the refrigerant according to regulations. By taking these steps, refrigerant loss from a purge unit on a R-123 chiller can be reduced, helping to protect the environment and ensure the continued efficient operation of the chiller.
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Which of the following is NOT used to classify soils? Depth, Texture, Color,
Structure
Answers
Answer: Depth does not classify soils. Soil color and other properties including texture, structure, and consistence are used to distinguish and identify soil layers.
Happy to help! (0.<)
Explanation:
The depth parameter is does not used to classify the soil in different region. Texture, color and structure are used to characterize the soil type.
What is soil classification?The method of classifying soil involves dividing it into groups where the behaviors of the soils within each group are the same under a certain set of physical conditions.
Engineers can use soil classification to comprehend and evaluate a particular soil's performance and determine whether the soil is suitable for particular engineering applications.
The classification of soli include based on grain size textural classification, AASHTO classification system, Unified soil classification system. AASHTO classification system is developed by Bureau of Public Roads for the classification of soil for the highway subgrade use.
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Which monomers make up carbohydrates?
Answers
Carbohydrates are biomolecules made up of monomers known as monosaccharides, which are simple sugars.
Monosaccharides are the building blocks of carbohydrates, and they can be linked together through a process known as dehydration synthesis to form more complex carbohydrates.
The most common monosaccharides that make up carbohydrates are glucose, fructose, and galactose. Glucose is the primary energy source for most living organisms and is used in cellular respiration to produce ATP, the molecule that fuels most metabolic processes in cells. Fructose is found in many fruits and is commonly used as a sweetener in processed foods. Galactose is less common and is typically found in milk and dairy products.
Monosaccharides can also be combined to form disaccharides, which are composed of two monosaccharides linked together. Examples of disaccharides include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
Overall, the monomers that make up carbohydrates are simple sugars, which can be combined to form more complex carbohydrates with a variety of functions in living organisms.
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a screen is placed 40.0 cm from a single slit, which is illuminated with light of wavelength 690 nm. if the distance between the first and third minima in the diffraction pattern is 2.60 mm, what is the width of the slit?
Answers
The width of the slit is 0.212 mm.
The wavelength of light is defined as “The distance between the two successive crests or troughs of the light wave”.
We know that the distance between minima is given by :
\(t = (m_{f} - m_{i} ) \alpha x/d\)
where, t = distance between minima
\(\alpha =\) wavelength
x = distance of screen
d = width of slit
\((m_{f} - m_{i} ) =\) difference between minima
Given, x = 40 cm = 0.4 m
\(\alpha = 690 nm = 690 * 10^{-9} m\)
t = 2.60 mm = \(2.60 * 10^{-3} m\)
\((m_{f} - m_{i} ) =\) 3 -1 = 2
Putting these values in above equation we get d = 0.212 mm
So the width of the slit is 0.212 mm.
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What is thermal energy
Answers
Answer:
Thermal Energy. Thermal energy is the internal energy of an object due to the kinetic energy of its atoms and/or molecules. The atoms and/or molecules of a hotter object have greater kinetic energy than those of a colder one, in the form of vibrational, rotational, or, in the case of a gas, translational motion.
Explanation:
Unpolarized light is incident onto three polarizers with their transmission axes oriented in such a way that the first and the last make a 39 angle between them, and the middle one makes the same angle with the first and the last one. Find the percentage of the incident light which passes through these three polarizers.
Answers
Answer:
I₃ = I₀ 0.395
Explanation:
Polarized light passing through a polarizer must comply with Malus's law
I = I₀ cos² θ
Before starting, let's analyze the angle between the polarizers, the second has the same angle with the first and the third, so it is at the midpoint
θ₂ = 39/2 = 19.5
now let's analyze the light that passes through each polarizer, as the incident is unpolarized through the first polarizer half the intensity comes out
I₁ = I₀ / 2
the second polarizer comes out
I₂ = I₁ cos² 19.5
I₂ = I₀ / 2 cos² 19.5
through the third polarized the intensity passes
I₃ = I₂ cos² 19.5
I₃ = (I₀ /2 cos² 19.5) cos² 19.5
I₃ = I₀ 0.395
How do you find average velocity during free fall?
Answers
When an electron falls from one energy level to a lower energy level, the result is the emission of:
Answers
Answer:
fsdfbfsdhfsfiic,dsiwe
Explanation:
The transfer of heat by the movement of a fluid is called:
A.
Conduction
B.
Radiation
C.
Convection PLS HELP ASAP!!!
Answers
Answer: C
Explanation:
Convective heat transfer, or convection, is the transfer of heat from one place to another by the movement of fluids, a process that is essentially the transfer of heat via mass transfer.
Yo, help will give brainliest
An un-stretched spring that is initially 20 centimeters long has a spring constant of 3.5 x 103 newtons per meter. What is the total length of the spring in centimeters when it is stretched to the point where 2.8 joules are stored in it?
Answers
Answer:
30
Explanation:
30
the total length of the spring in centimeters when it is stretched to the point where 2.8 joules are stored in it is 30.
What are the unit of length ?length can be defined as the measurement which is an act for the identification of the object's length in some standard or non-standard units.
The most common units of length are U.S. customary units and the metric units include SI and non-SI units, others are British Imperial units are also still used in some countries.
Other units of length include kilometres, nanometre, millimetres, centimetres, metres, decimetres where as the Imperial and U.S. customary systems, basic unit of length is the yard.
other units are thou (1⁄1000 of an inch), line (1⁄12 of an inch), inch (25.4 mm), foot (12 inches, 0.3048 m)
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Why is the air temperature shown on Sensor 4 different from Sensor 5, even though they are at the same latitude?
Answers
Answer:
Hello your question lacks some information but i will give you a more General answer about differences in temperature of bodies on same latitude
answer : Continentality is the reason
Explanation:
Sensors or objects on the same latitude are supposed to have the same air temperatures but in some cases this might not be true. This is because of the proximity of the bodies to an Ocean or any water body.
Areas close to water bodies experience modest temperatures even if they are on the same latitude with Areas experiencing harsh temperatures. This effect is termed as Continentality
Suman climb a 5 metre high ladder in 10 second calculate his power the mass of his body is 50 kg
Answers
Answer:
245W
Explanation:
Given parameters:
Mass of his body = 50kg
Height of climb = 5m
Time = 10s
Unknown:
Power = ?
Solution:
Power is defined as the rate at which work is done;
Mathematically,
Power = \(\frac{work done}{time}\)
Work done = mgh
m is the mass
g is the acceleration due to gravity
h is the height
Work done = 50 x 9.8 x 5 = 2450J
Power = \(\frac{2450}{10}\) = 245W
What is the charge of the particle on an aluminum rod with a 0. 946 that you pass between the poles of a 0. 41-T permanent magnet at a speed of 4. 05 m/s at a 90o angle?
Answers
The charge of the electron on aluminum rod is approximately\(1.61 * 10^{-19}\) Coulombs.
We can use formula for magnetic force on a moving charged particle to solve this problem. The magnetic force is given by:
\(F = qvB*sin(theta)\)
We are given the velocity of electron, v = 4.05 m/s, and magnetic field strength, B = 0.41 T. The angle between velocity vector and magnetic field vector is 90 degrees, so sin(theta) = 1.
The force can be found using formula above:
\(F = qvB*sin(theta)\)
Plugging in given values:
\(F = q * 4.05 m/s * 0.41 T * 1\)
F = 1.663 q N
The magnitude of the force Keeping the electron moving in a circle is :
F = m*a
The centripetal acceleration is:
a = v^2 / r
F = qvB
Substituting the expression , we get:
r = mv / (qB)
\(r = (9.11 * 10^{-31 }kg) * (4.05 m/s) / (q * 0.41 T)\)
Solving for q, we get:
\(q = (9.11 * 10^{-31} kg) * (4.05 m/s) / (0.946 * 0.41 T * 1.663)\\q = 1.61 * 10^{-19} C\)
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The most common form of a Retail channel is
__________________________ .
a catalog
a store
a mobile device
social media
Answers
The most common form of a retail channel is a store. A store refers to a physical location where goods or services are sold directly to customers. It serves as a place where customers can browse, touch, and try products before making a purchase.
In a store, customers can interact with sales representatives, receive personalized assistance, and get immediate answers to their questions. Examples of retail stores include supermarkets, clothing boutiques, electronics stores, and department stores. Stores offer a wide range of benefits for both customers and retailers. For customers, they provide a tangible and immersive shopping experience, allowing them to see, touch, and try products before buying.
Additionally, stores often have knowledgeable staff who can provide guidance and recommendations. For retailers, stores provide a physical presence in the market, enabling them to build brand awareness, establish customer relationships, and offer additional services such as returns and exchanges. Overall, stores are a fundamental and widely utilized form of retail channel.
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Will mark brainliest for the first person who answered correctly Which of the following is an example of non-renewable energy? Hydroelectric Gas Solar Wind
Answers
Answer:
gas is non-renewable resource
Explanation:
Answer:
Gas
Explanation:
There are two types of energy sources, renewable and non-renewable.
Solar energy, wind energy, and hydroelectric are an example of renewable energy.
Fossil fuels like gas, coal, and petroleum are an example of non-renewable energy.
What is Kepler’s first law?
Answers
Answer:
Kepler's First Law: each planet's orbit about the Sun is an ellipse. The Sun's center is always located at one focus of the orbital ellipse. The Sun is at one focus. The planet follows the ellipse in its orbit, meaning that the planet to Sun distance is constantly changing as the planet goes around its orbit.
Answer:
Explanation:
Kepler 's first law - sometimes referred to as the law of ellipses - explains that planets are orbiting the sun in a path described as an ellipse. An ellipse can easily be constructed using a pencil, two tacks, a string, a sheet of paper and a piece of cardboard. Tack the sheet of paper to the cardboard using the two tacks.
What is true about cooling down?
A.
It causes blood to pool in your feet.
B.
It is not an important part of exercising.
C.
It keeps your blood flowing evenly.
D.
It will cause you to do stiff and sore.
Answers
Answer:
C
Explanation:
because cooling down makes your blood flow through your body much easier and fatser.
Answer:
C.It keeps your blood flowing evenly.
Explanation:
The pitchers mound in baseball is 85 meters from home plate . If it takes 4.1 seconds for a pitch to reach the plate , how fast is the pitch is m/s.
Answers
Answer: 20.73m/s
Explanation:
The question simply wants us to calculate the speed of the pitch. The speed will be calculated as:
= Distance/Time
where,
Distance = 85 meters
Time = 4.1 seconds
Speed = Distance/Time
Speed = 85/4.1
Speed = 20.73m/s
Therefore, the speed of the pitch is 20.73m/s.
A population of a tree snail species has different patterns in their shells. These slight differences in appearance among the individual members of the species are called variations. How do you think these variations get passed on from one generation of tree snails to the next? Select the answer that best matches your thinking.
Answers
The variations get passed on from one generation of tree snails to the next from both parents to offspring and through the environment (Option C is correct).
What is genetic variation?The expression of genetic variation refers to differences in the nucleotide sequences between individuals of the same special which are passed across generations from parents to offspring and are selected by natural selection.
In conclusion, the variations get passed on from one generation of tree snails to the next from both parents to offspring and through the environment (Option C is correct).
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The development and use of alternative energy source is very necessary in present day world. Explain this statement.
Answers
Answer:
In today's world pollution is very high so alternative energy such as solar energy help us to make pollution free world. So it is necessary to use alternative energy.
Some Body Help!
Change 129°F to Celsius scale?
Answers
129°F
to find:129°F as Celsius
solution:\(c = (f - 32) \times \frac{5}{9} \)
\(c = (129 - 32) \times \frac{5}{9} \)
\(c = 53.8889 \: degrees \: celsius\)
4. A motorbike increases its velocity from 20 m/s [W] to 30 m/s [W] over a distance of 200 m. Find the acceleration and the time it takes to travel this distance.
Answers
Initial velocity, u = 20 m/s , v = 30 m/s ,Displacement (s )= 200 m , Acceleration, a = ? Time taken, t = ? Using the formula, s = ut + 1/2 at²
Here, u = 20 m/st = ? a = ? s = 200 m Putting these values, we get 200 = 20t + 1/2 a t² ---(1)Using the formula, v = u + at Here, u = 20 m/s v = 30 m/s a = ?t = ?
Putting these values in above formula, we get 30 = 20 + a t...[2]
Now, putting this value in equation [1], we get:200 = 20t + 1/2 × 5t²200 = 20t + 2.5t²
Now, simplifying this,2.5t² + 20t - 200 = 0...[3]
Now, solving this quadratic equation using the formula,t = (-b ± √(b² - 4ac)) / 2a
Here, a = 2.5, b = 20 and c = -200So, we get,t = 5 seconds or -16 seconds As the time taken cannot be negative, so the time taken by the bike to travel this distance is 5 seconds. Now, using equation [2], we can find the value of acceleration.
30 = 20 + a × 5a = 2 m/s² Hence, the acceleration is 2 m/s² and the time taken to travel 200 m is 5 seconds.
The acceleration of the bike is 2 m/s² and the time taken by the bike to travel this distance is 5 seconds.Explanation:It is given that the motorbike increases its velocity from 20 m/s [W] to 30 m/s [W] over a distance of 200 m. We have to find the acceleration and the time it takes to travel this distance.The formula used to solve this problem is,s = ut + 1/2 at²andv = u + atwhere,s = displacementt = time takenu = initial velocityv = final velocitya = accelerationPutting the given values in these formulas, we can find the acceleration and time taken by the bike to travel 200 m. The acceleration of the bike is 2 m/s² and the time taken by the bike to travel this distance is 5 seconds.
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