What is the mechanical layer of Earth that has the most active convection
currents?
OA. Lower mantle
OB. Crust
OC. Lithosphere
OD. Asthenosphere
SUMIT
Answers
Option D. The mechanical layer of Earth that has the most active convection currents is Asthenosphere.
What is Asthenosphere?The asthenosphere is the mechanically weak and ductile region of the upper mantle of Earth.
The asthenosphere, zone of Earth's mantle lying beneath the lithosphere and believed to be much hotter and more fluid than the lithosphere. It is the most active layer for convection current.
Thus, the mechanical layer of Earth that has the most active convection
currents is Asthenosphere.
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Related Questions
10. Duncan needs to lift a 31.0kg rock. If he exerts an upward force of 500 N on the rock, what is the rock's acceleration?
Answers
Explanation:
(taking g = 10 m/s^2)
F - W = m * a
500 - 310 = 31 * a
190 = 31 * a
a (Acceleration of rock ) = 6.12 m/s^2
A new piece of exercise equipment has been added to your gym, and you try it out. To use this machine, you lie horizontal on a mat with your feet against a platform perpendicular to the mat. The platform is held by a stiff spring that is compressed when the platform moves. Your workout invovles compressing the spring by pushing on the platform with your feet. After testing compressions of the equipment, you determine that you must do 85.0 J of work to compress the spring a distance 0.170 m from its uncompressed length.What magnitude of force must you apply to hold the platform stationary at the final distance given above
Answers
Answer:
500 N
Explanation:
Since the work done on the spring W = Fx where F = force applied and x = compression length = 0.170 m (since the spring will be compressed its full length when the force is applied)
Since W = 85.0 J and we need to find F,
F = W/x
= 85.0 J/0.170 m
= 500 N
So, the magnitude of force must you apply to hold the platform stationary at the final distance given above is 500 N.
two people are trying to push a refrigerator. one person is pushing at an angle that is parallel to the floor and 70° to the front plane of the refrigerator with a force of 400 n, and the other is pushing at an angle that is parallel to the floor and 110∘ to the front p
Answers
Answer: As friction force is less than the Resultant
force so they will be able to move the fridge
Explanation:
top view of fridge
Angle between forces B= 180- 70- (186-110 )
= 170 - 70 = 40 -
Resultant of forces .
R = 1 ( FOR + ( 82 ) 2 + 2 FIF2 COS B .
J (40B) " + ( 375 ) 2 + 2 x 400 * 375 x Cos 40 "
7 28 - 31 1 N .
() friction force = 600.
As friction force is less than the Resultant
force so they will be able to move the fridge
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There is 728.311N force acting on the front plane. while two individuals attempt to push a refrigerator. Pushing with a force of 400 N, one person is positioned with their back.
Angle between forces B= 180- 70- (186-110 )
= 170 - 70 = 40
R= \(\sqrt{(F1^{2} )+(F2^{2})+2F1F2cos\alpha }\)
Here F1= 400
F2=375
alpha = 40
Resultant of forces .
728 . 31 1 N
friction force = 600.
friction force.
The refrigerator can be moved since the friction force is smaller than the resultant force.
Force's Definition. When an object interacts with another object, it experiences a push or pull that is known as a force. Every time two things interact, a force is applied to each of them.
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A ball is thrown from a hot air balloon that is at rest 245 m above the ground. How long will it take for the ball to reach the ground? How fast will the ball be traveling when it reaches the ground?
Answers
Answer:
7.07 s
69.3 m/s
Explanation:
Taking the negative direction to be down and the positive direction to be up:
We have 3 variables in the y-direction and can solve for time.
v₀ = 0 m/sa = -9/8 m/s² Δy = -245 m t = ?Use this kinematics equation to solve for time.
Δx = v₀t + 1/2at² -245 = 1/2(-9.8)t² -245 = -4.9t² t² = 50t = 7.07106781187It will take the ball 7.07 s to reach the ground.
We can solve for final velocity using the same variables in the y-direction:
v₀ = 0 m/sa = -9/8 m/s² Δy = -245 m v = ?Use this kinematics equation to solve for final velocity.
v² = v₀² + 2aΔxv² = 2(-9.8)(-245) v² = 4802v = 69.2964645563The ball will be traveling at a speed of 69.3 m/s at the instant before it reaches the ground.
What is the heat capacity of water?
Answers
For an exact temperature increase of one degree Celsius, 4,184 joules of water must absorb one calorie of heat.
How many kg of specific heat are there?The specific heat capacity is measured in J/(kg K) or J/(kg °C), and it is the amount of heat (J) absorbed per unit mass (kg) of the material when its temperature rises by 1 K (or 1 °C).
Is the specific heat capacity of water 4200?The specific heat capacity of water is 4,200 J/kg°C (joules per kilogramme per degree Celsius). This shows that 4,200 J are needed to raise a kilogramme of water's temperature by one degree. Lead will become hotter and cool down faster.
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A wrestler bench presses 64 kg. If the barbell accelerates upward at a rate of 2.57 m/s2, what is the force exerted by the wrestler on the weights?
Answers
A wrestler bench presses 64 kg. If the barbell accelerates upward at a rate of 2.57 m/s2, The force exerted by the wrestler on the weights will be 164.48 N
Force is equal to the rate of change of momentum. For a constant mass, force equals mass times acceleration.
given
mass = 64 kg
acceleration = 2.57 \(m/s^{2}\)
Using newton's second law
force = mass * acceleration
= 64 * 2.57 = 164.48 N
The force exerted by the wrestler on the weights will be 164.48 N
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Two 5.0-cm-diameter metal disks separated by a0.61-mm-thick piece of Pyrex glass are charged to a potential difference of 1300V . (Dielectric constant of the Pyrex glass is Pkpyrex=4.7.)
A) What is the surface charge density on the disks?
B) What is the surface charge density on the glass?
Answers
The surface charge density on the disks is, \(4.3910^{-5} C/m^2\). The surface charge density on the glass is, σ = \(-4.39\times 10^{-5} C/m^2\).
We can solve this problem using the capacitance equation for a parallel plate capacitor with a dielectric material between the plates:
C = εA/d
where C is the capacitance, ε is the permittivity of the dielectric material, A is the area of the plates, and d is the distance between the plates.
The potential difference V between the plates is related to the charge Q on the plates and the capacitance C by:
V = Q/C
The capacitance of the parallel plate capacitor is:
C = εA/d = \((4.78.85\times 10^{-12} \text{ F/m})\times \dfrac{\pi (0.025 m)^2}{0.00061 m}\)
\(= 4.22 \times 10^{-11} F\)
The charge on each plate is:
Q = CV
\(= (4.22\times 10^{-11} F)(1300 V)\\\\ = 5.48\times10^{-8} C\)
The surface charge density on each disk is:
\(\sigma = Q/A\\\\ = 2\dfrac{Q}{\pi r^2}\\\\ = \dfrac{2(5.4810^{-8} C)}{\pi (0.025 m)^2}\\\\ = 4.3910^{-5} C/m^2\)
The surface charge density on the Pyrex glass is equal and opposite to the surface charge density on the disks. This is because the total charge on the system must be conserved. Therefore, the surface charge density on the Pyrex glass is:
σ = \(-4.39\times 10^{-5} C/m^2\)
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Module 3 Discussion!
After reading Ch.12 and 13 of the text (The essentials of Finance and Accounting for nonfinancial managers/ Third Edition) on Strategy and Financial Forecasting, watching the SWOT video based on Paley’s Products from the Ratio Analysis in Module 2 and the additional narrative information in Appendix C, Phase
Create a SWOT analysis that will reflect the TOWS analysis as described in Ch. 12 of the text. The purpose of the SWOT analysis is to lay out several issues and possibilities to be considered in Paley’s strategic planning. The strengths and weaknesses are internal issues, whereas the opportunities and threats are external.
The second part of the analysis is to create actions based on the SWOTs. This is sometimes called a TOWS analysis and is done by comparing the boxes, two at a time:
Offensive actions come from strengths that link to opportunities, so a specific strength can be applied to exploit an opportunity.
Adjusting actions come from addressing weaknesses, which then can be used to exploit opportunities that previously had not been possible.
Turnaround actions come from weaknesses that link to threats. These are high-risk issues where a priority needs to be given to addressing the weakness to minimize the vulnerability.
Defensive actions come from threats that link to strengths. These are latent issues because if the threat materializes, an already-existing strength is available to counter it.
Additional actions can be included to address other issues not directly identified in the SWOTs.
3. From the actions identified in part 2, pick 3-5 strategic actions that you feel Paley must achieve or at least start in the upcoming year and state your reasons for including them.
Attach your completed SWOT form and list of strategic actions with supporting logic and facts from the case as your answer for this discussion question. These actions are the foundation for the strategic plan
Answers
SWOT Analysis Strengths- Paley’s Products has a low overhead cost with the company operating at a high level of efficiency, resulting in competitive pricing.- They have a team of experienced employees who have worked in the industry for several years.- They have a variety of products in the portfolio that can satisfy customers from different sectors.- They are reputable and have a loyal customer base.Weaknesses- They have been slow to adopt new technology, and this may be a disadvantage to the company.- Limited marketing and sales promotion are affecting their sales revenue.-
They depend on a few key customers for the bulk of their sales revenue, leaving them vulnerable to market changes.Opportunities- Expansion of the product line to include unique products.- The establishment of strategic partnerships with other businesses in the industry.- Exploration of new markets, such as international markets.- Improvement of marketing techniques to increase brand awareness.Threats- Changes in consumer preferences towards environmentally friendly products.- Increase in competition from other businesses in the industry.- Fluctuating market prices for raw materials that may lead to price increases.
Strategic Actions to be taken by Paley Products1. Development of an E-commerce platform to allow online transactions with customers. The E-commerce platform will enable Paley to reach a wider customer base, expand its reach, and increase sales revenue.2. Investment in the research and development of new environmentally friendly products. Paley will remain competitive and cater to the needs of consumers who prefer green products.3. Establishment of strategic partnerships with other businesses in the industry to leverage the strength of other companies in the industry and to develop new products or increase market share.4. Improvement of marketing techniques to increase brand awareness and improve visibility. A marketing strategy that incorporates social media and other digital channels can help promote the brand to potential customers.5. Expansion into international markets. This will enable Paley to diversify its customer base and generate more revenue. Paley can start by targeting nearby countries, then expand globally as they gain more experience and financial stability.
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Acodents canneer be presentes True or false
Answers
Answer: true
Explanation:mark me brainliest
A student makes a solution of 45 mL of acid and 350 mL of water. What is the concentration of acid in the solution? Mark only one oval.
7.8 %
12.9 %
.129 %
78.7%
Answers
The concentration of acid in the solution would be 11.4%. None of the options is correct.
Concentration determinationTo determine the concentration of acid in the solution, we need to calculate the ratio of the volume of acid to the total volume of the solution and express it as a percentage.
Volume of acid = 45 mL
Volume of water = 350 mL
Total volume of solution = Volume of acid + Volume of water = 45 mL + 350 mL = 395 mL
Now, let's calculate the concentration of acid:
Concentration of acid = (Volume of acid / Total volume of solution) * 100
Concentration of acid = (45 mL / 395 mL) x 100 ≈ 11.4%
In other words, the concentration of acid in the solution is approximately 11.4%.
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The part of the lithosphere under the ocean are less dense then those under the continents. True or false
Answers
Answer:
False
Explanation:
The outer part of the Earth that is hard and solid is termed as lithosphere. It is the outermost part of the Earth's surface. The lithosphere covered under the oceans is the oceanic lithosphere while the lithosphere comprising the continental area is the continental lithosphere. Oceanic lithosphere is denser than the continental lithosphere because of the thin layer of the Earth that exists under the oceans.
According to the principle that the emission lines of a substance must be at exact same positions of its absorption spectrum, what substance accounts for the dark lines in the absorption spectrum
Answers
Answer:
The dark lines in absorption spectrum of light is due capacity of atoms to absorb light of a specific energy. The absorption of light by atoms occurs when the atom transitions from a lower energy or ground state to an excited high energy state, and it appears in the emission spectrum of the element as dark lines located in the same position as the bright lines
Explanation:
Một vật chuyển động thẳng biến đổi đều đi hết quãng đường AB trong thời gian 6 giây. Vận tốc của vật khi đi qua điểm A là 5m/s, khi đi qua điểm B là 15m/s. Tìm chiều dài của quãng đường AB. A. 50 m B. 80 m C. 60 m D. 70 m →→→
Answers
Câu trả lời:
C. 60 m
Giải trình:
Cho rằng:
Tốc độ tại A, u = 5m / s
Tốc độ tại B, v = 15m / s
Độ dài quãng đường, AB =?
Tổng thời gian di chuyển = 6 giây
Hãy tính gia tốc, a:
a = (v - u) / t
a = (15 - 5) / 6
a = 1,667 m / s²
Từ :
v² = u² + 2aS
Trong đó, S = khoảng cách
15² = 5² + 2 (1.667 * S)
225 = 25 + 3,334S
225 - 25 = 3,334S
200 = 3,334S
S = 200 / 3,334
S = 59,98 m
S = 60 m
The energy conversion that causes wind is from
energy in
to
energy in the wind
Answers
In wind, there is an energy conversion from potential energy to kinetic energy.
Potential energy to kinetic energyPotential energy is energy at a point. Kinetic energy refers to energy that is motion. Wind refers to air in motion. This implies that wind possesses kinetic energy.
Ultimately, we arrive at the fact that when we observe wind, there is an energy conversion from potential energy to kinetic energy.
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What is the wavelength (in feet) of a 600 hz sound wave (assume speed of sound in air is 1125 ft/s; round to the nearest second decimal place e.g. 1.255 = 1.26)?
Answers
The wavelength (in feet) of the sound wave with a velocity of 1125 ft/s and a frequency of 600 Hz is 1.88 ft
Relation of velocity, frequency and wavelength of a waveThe velocity of a wave is related to its frequency and wavelength according to the following equation:
Velocity (v) = wavelength (λ) × frequency (f)
v = λf
How to determine the wavelength of the waveFrom the question given, the following data were obtained:
Frequency (f) = 600 HzVelocity (v) = 1125 ft/s Wavelength (λ) =?The wavelength of the wave can be obtained as follow:
v = λf
Divide both sides by f
λ = v / f
λ = 1125 / 600
λ = 1.88 ft
Thus, the wavelegth of the wave is 1.88 ft
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How fast would you have to travel to stay beneath the subsolar point as it moved along the equator?
A)
656 kilometers per hour
B)
909 kilometers per hour
C)
1,035 kilometers per hour
D)
1,670 kilometers per hour
Answers
The Correct answer is Option (D) 1,670 kilometers per hour. Because, the Earth's equatorial circumference is approximately 40,075 kilometers, and it takes 24 hours to complete one full rotation.
The subsolar point is the point on the Earth's surface where the sun is directly overhead at a given moment. This point moves along the equator due to the rotation of the Earth. In order to stay beneath the subsolar point as it moves along the equator, one would need to travel at the same speed as the Earth's rotation. Therefore, the speed of the Earth's rotation at the equator is:
40,075 km / 24 h = 1,670 km/h
Hence correct option is : D.
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How will the electrostatic force be changed if the distance between two electric charges is tripled?
A) 9 times the original force
B) 3 times the original force
C) 1/9 of the original force
D) 1/3 of the original force
Answers
Answer:
How will the electrostatic force be changed if the distance between two electric charges is tripled?
B) 3 times the original force
Please help me with this
Answers
Answer:
I can't really see it sorry
A car slows from 90mi/he to 55mi/hr when it sees the police what's the cars acceleration
Answers
Tech a says that one advantage of distributorless ignition systems is no moving parts to maintain. Tech b says that the resistance of the coil primary winding can best be tested with a voltmeter. Who is correct?.
Answers
Tech A's point is correct as Tech A says that one advantage of distributor less ignition systems is no moving parts to maintain.
Ignition system have following merits:-
Less voltage loss, from the coil to the plug.
However with fewer connections and the elimination of the distributor rotor to cap air gap.
So, the evolution of ignition systems, has provided a number of merits.
As a result, drivers driving with newer systems enjoy better fuel efficiency; infact more reliable operation with reduced maintenance costs.
The position sensors, are equipped with a magnetic coil, generating a magnetic field. So, when the gap of a triggering wheel, comes in front of the position sensor; a fluctuation in the signal is likely to occur. These signals then stop or start, the flow of current, to the primary winding of the coil cannot be tested with voltage measuring device.
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WILL GIVE BRANLIEST
can you find a magnet with only a north pole? why or why not?
Answers
Calculate the expected chain-length (number of repeating units
per chain) that would be formed in your experiment, assuming all
initiators initiate chains and all monomers add onto the chains.
That is
Answers
The expected chain length (number of repeating units per chain) that would be formed in the experiment, assuming all initiators initiate chains and all monomers add onto the chains can be calculated using the following formula.
Expected chain length = (Number of moles of monomers used/Number of moles of initiators used) + 1Where,+ 1 denotes the length of the initiator's unit and is added to the average number of monomer units. Hence, it indicates the length of the polymer's first unit.The number of moles of monomers used can be determined as follows
The number of moles of initiators used can be determined as follows:Number of moles of initiators = (Mass of initiators used/Molecular weight of initiators)Example:If the mass of monomers used is 0.05 g and the molecular weight of monomers is 100 g/mol, then the number of moles of monomers used
= (0.05/100) mol
= 5 × 10⁻⁴ molIf the mass of initiators used is 0.01 g and the molecular weight of initiators is 200 g/mol
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x Methane, has a molar mass of 16.03 grams per mole. How many particles o of methane are present in 120 grams?
Answers
In order to determine the number of particles of methane, use the following expression:
number of particles = (mass /molar mass ) x Avogadro's number
in this case, you have:
molar mass = 16.03 grams/mole
mass = 120 grams
Avogadro's number = 6.02*10²³ particles/mol
replace the previos values of the parameters into the formula for the number of particles:
number of particles=(120 grams/ 16.03 grams/ mol)x(6.02*10²³particles/mol)
= (7.46 mol) x (6.02*10²³ particles/mol)
= 4.50*10²⁴ particles
Hence, the number of particles of methane, in 120 grams, is 4.50*10²⁴
Why is atmospheric pressure corrected to sea level?.
Answers
Atmospheric pressure is corrected to sea level in order to standardize the measurement of pressure across different locations.
Since air pressure decreases as altitude increases, it becomes difficult to compare pressure readings from different locations without adjusting for the differences in elevation. Hence, correcting the atmospheric pressure to sea level allows for a consistent and standardized way of measuring pressure across different locations.
However, it is important to note that the corrected pressure is still not an exact representation of the true pressure at sea level. This is because atmospheric pressure also varies with changes in temperature and humidity, which can differ between locations. Nonetheless, correcting pressure to sea level provides a useful and widely accepted reference point for pressure measurements.
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An observer is standing next to the tracks, watching a train approach. The train travels at 30 m/s and blows its whistle at 8,000 Hz as it approaches and then passes by the observer without slowing down. Assuming the speed of sound is 340 m/s, how much of a frequency change did the observer hear?
Answers
7351.35Hz
f0= v-Vo/v-Vs × FSA
= 340-0 /340+30 ×8000
= 340/370× 8000
= 7351.35hz
Is feeling chilly and cold the same thing?
Answers
Answer:
The term “chills” refers to a feeling of being cold without an apparent cause. You get this feeling when your muscles repeatedly expand and contract and the vessels in your skin constrict. Chills can occur with a fever and cause shivering or shaking. Your body chills can be constant.
Explanation:
Hope this helps , also put in your own words !!
What is the mass of an object if it takes a net force of 2,400 Newtons
to accelerate it at a rate of 60 m/s??
Answers
Answer:
40 kg
Explanation:
F = ma
F / a = m
2400 / 60 = 40 kg
A 98N weight is lifted to a height of 4m. What is its potential energy at this position?
Answers
Answer:
i need points
Explanation:
What is the answer for y = 4cos(5x)?
Answers
Maybe this graph can help?
Will mark correct answer brainliest
A class assignment requires the building of a solar powered car that will travel at
least 10 meters in 10 seconds. Each group is given one solar cell for their design.
Which of these would improve the design the most?
Making the size of the car bigger.
Using a thicker axle.
Reducing the mass of the design.
Adding mass to the design.
Answers
Answer:
making the size of the car bigger is good
A class assignment requires the building of sloar powered car then improving the design by reducing the mass of the design will be a better option.
What is a Solar Cell?A solar cell, also known as a photovoltaic cell, is any apparatus that directly transforms light into electricity using the photovoltaic effect. The great majority of solar modules are called silicon, which can be found in amorphous (noncrystalline), polycrystalline, and crystal (single crystal) varieties, with varying degrees of efficiencies.
Solar cells do not use oxidation processes or require fuel to generate electricity, making them, unlike batteries. They also do not include any moving parts, making them, unlike electric generators.
Arrays are big collections of solar cells that can be put together. These arrays, which are made up of thousands of separate cells, have the capacity to serve as central electric power plants, transforming solar energy into electricity and distributing it to customers in the commercial, industrial, and residential sectors.
By reducing the mass of the design the car will become lightweight then it is able to get speed quickly also the efficiency of the car will also improve.
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