The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models.
what is parietal cortex ?
The parietal lobe is also an important component of spatial information, as it allows us to judge size, distance, and shape. The capacity to read written language and solve mathematical issues is provided by an unique triangular-shaped region known as the parietal association cortex.
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models. The neural correlate of working memory has traditionally been thought to be persistent activity during the delay period of working memory tasks, following the offset of stimuli that subjects are required to remember. Several findings in recent years have cast doubt on the role of this activity. According to some, activity in other brain areas, such as the primary visual and posterior parietal cortex, is a better predictor of information maintained in visual working memory and working memory performance;
dynamic patterns of activity may convey information without requiring any persistent activity at all; and prefrontal neurons may be ill-suited to represent non-spatial information. about the features and identity of remembered stimuli.
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What is the frequency of radio waves with wavelength of 500 m?.
The frequency of radio waves with a wavelength of 500 m is 6 x 10⁶ Hz.
An example of electromagnetic radiation is radio waves. The wavelength of a radio wave is substantially greater than that of visible light. Radio waves are widely used by people for communication. Both rectangular and circular antennas are used by this radio tower to send and receive radio frequency energy. y.
As we know,
Speed of light = Frequency × wavelength
Speed of light (c) = 3×10⁸ m/s
Frequency(f) = ?
Wavelength (λ) = 500m
Therefore,
c = f × λ
3×10 ⁸ = f × 500
f = 3×10 ⁸ /500
f = 6 x 10⁶ Hz.
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Listed following are several locations in the Milky Way Galaxy. Rank these locations based on their distance from the center of the Milky Way Galaxy, from farthest to closest.
Farthest
-a globular cluster in the outskirts of the halo
-a cloud of gas and dust in the outskirts of the disk
-our solar system
-the edge of the central bulge
Closest
Feedback: Correct
The central bulge extends out about 5,000 light-years from the galactic center. Our solar system is about 28,000 light-years from the center, which is about halfway through the disk. The halo extends to much greater distances than the 50,000 light-year diameter of the disk, which is why this choice is ranked first.
Approximately 5,000 light-years separate the galactic center from the central bulge. The distance to the center of the disk, or halfway through it, is around 28,000 light-years, or our solar system.
The Sun and the things that circle it make up the solar system, which is gravitationally linked. The gravitational collapse of a massive interstellar molecular cloud gave it birth 4.6 billion years ago. The Sun is the system's primary mass, accounting for 99.86% of its total mass, with Jupiter making up the majority of the remaining mass. Mercury, Venus, Earth, and Mars are the four planets in the inner solar system, and they are all terrestrial planets with rocky and metallic cores. In comparison to the terrestrial planets, the four giant planets of the outer solar system are significantly bigger and more massive. The two biggest, Jupiter and Saturn, are gas giants made primarily of hydrogen and helium; the next two, Uranus and Neptune, are ice giants made primarily of combustible materials.
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what is the translational speed of the rotating hoop after it has descended a distance 0.750 mm ? express your answer in meters per second.
The transitional speed of the rotating is 33.8 rad/s
What is angular momentum and an illustration of it?The term "angular momentum" refers to the characteristic of any rotating object that is determined by the product of the rotating item's angular velocity and moment of inertia. It is a vector with a direction and a magnitude. The rotation and revolution of the Earth are common instances of angular momentum.
What characteristics does angular momentum have?The angular momentum of a body in classical mechanics is a vector that can have any length and any direction. Imagine a bicycle wheel spinning. The direction of its angular momentum is along its axle, and the length of it is proportional to its angular velocity (number of revolutions per unit time).
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what happens to the erosive power of a stream as velocity increases?
The erosive power increases as the velocity increases of the stream.
What is power?Power is the rate of job completion or energy delivery in science and engineering. It is denoted by the symbol W/t, which is the product of the amount of labor (W) or energy (E) transported divided by the amount of time (t).
Any given amount of work can be finished fast with a high-powered motor or slowly with a low-powered motor. Units of power, which measure work (or energy) per unit of time, include joules per second (or watts), ergs per second, and foot-pounds per minute.
For picking up material as opposed to carrying it in suspension, more velocity is required. The rate of erosion and velocity both rise during the peak discharge. Deposition and transportation are barely separated. It follows that merely a slight drop in velocity causes sedimentation.
Therefore, the erosive power decreases as the velocity increases of the stream.
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The erosive power of a stream as velocity increases because no force of interaction between positive and neutral object.
What is Coulomb's law?Coulomb's law states that the electric force is directly proportional to the product of the charged objects.
The electric force is also inversely proportional to the square of the distance between the charges and is denoted below:
F= kq1q2/ r² (Newton)
where,
F=electric force
k=Coulomb constant
q1, q2=charges
r=distance of separation
So, here we know that when two objects are charged and placed at some distance "d" apart then the two objects will either attract or repel each other.
If the charges are of similar type then the two objects will repel while if the charges are of opposite nature then two objects will attract each other.
So here when a charge object is near the neutral then there is NO force between two objects.
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Like _______, X-ray bursters suddenly brighten when accreted material hits the surface of the compact object and undergoes runaway nuclear fusion.
classical novae
Like classical novae , X-ray bursters suddenly brighten when accreted material hits the surface of the compact object and undergoes runaway nuclear fusion.
A Nova is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star (hence the name "Nova", which is a Latin word means "new") that slowly fades over weeks or months. Classical nova eruptions are the most common type. They are likely created in a close binary star system. Classical novae are the result of a hydrogen, thermonuclear runaway on top of an accreting white dwarf, in a close binary system (cataclysmic variable). Classical nova explosion are the 3rd most violent explosions than can occur in a galaxy.
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The coefficient of kinetic friction between an object and the surface upon which it is sliding is 0. 10. The mass of the object is 8. 0 kg. What is the force of friction?.
when there is friction, Fs=784 An object's kinetic friction coefficient with the surface it is sliding along is 0. 10. 8.0 kg make up the object's weight.
How do static and kinetic friction differ?The static friction that prevents the box from moving on its own must be overcome with an adequate opposing force for the box to move. The force that opposes the relative displacement of surfaces once they are moving is known as kinetic friction, sometimes known as dynamic friction.
w = mg = (12 kg)(9.8 m/s²)
w = 117.6 N
The weight force is equal to 117.6 N, and since the normal force is equal to the weight force, we can say that the normal force is also equal to 117.6 N.
Now that we have the normal force, we can plug it into the formula for the force of kinetic friction:
fₖ = μₖ * n
fₖ = (0.6) * (117.6)
fₖ = 70.56 N
Which of the seven friction kinds are there?The four basic types of friction are fluid friction, rolling friction, sliding friction, and static friction. Normal force and friction are exactly proportional to the surfaces in contact; they are independent of hardness of the touching surface.
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light passes from a material with index of refraction 1.33 into one with index of refraction 1.20. compared to the incident ray, does the light ray bend toward the normal or away from the normal? support your claim.
Light passes from a material with index of refraction 1.33 into one with index of refraction 1.20. compared to the incident ray, the light ray bend away from the normal.
An optically denser medium will have a higher refractive index. Which signifies that the medium with a refractive index of 1.3 is the denser medium and the medium with a refractive index of 1.2 is the less dense medium.Whenever light travels from one medium to another, the rays bend towards or away from the normal. This is called refraction. When light moves from rarer to denser mediums, the rays are bent towards the normal otherwise it will bend away from the normal.Hence, the light ray bend away from the normal after the refraction.
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if the temperature of a blackbody is 2700 k, at what wavelength, in units of nanometers, does it radiate the most energy?
Answer:
Wavelength = 1074 nm
Explanation:
Given:
T = 2700 K
b = 2.9·10⁻³ m·K - Wine's constant
___________
λm - ?
Wine Law:
λm = b / T
λm = 2.9·10⁻³ / 2700 ≈ 1074·10⁻⁹ m or λm = 1074 nm
for safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 1.2 cm in diameter. when supporting a(n) 80-kg climbs, the rope elongates 1.4 m. find its young's modulus.
The young's modulus is E = 1.4938211 × [tex]10^5 N/m^2[/tex]
How to calculate the young's modulus when stress and strain value is not given ?The length of the rope is, L = 65 m.
The diameter of the rope is, d = 1.2 cm = 0.012 m.
The mass of climber is, m = 80 kg.
Given elongation of rope = Δ L = 1.4 m
Young's Modulus of Material is the product of the ratio of stress to strain produced in a material. Then,
E = σ /ε
E = W / A / L/ ΔL
E = ( mg × Δ L ) ÷ (π/4 × d² ×L )
On substituting the values we get ;
( take g = 9.8 m/s^2)
E = 1097.6 / 0.0073476
E = 149,382.11 [tex]N/m^2[/tex]
E = 1.4938211 × [tex]10^5 N/m^2[/tex]
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A playground ride consists of a disk of mass M =32 kg and radius R-1.7 m mounted on a low-friction axle (see figure below). A child of mass m =24 kg runs at speed V Ξ2.7 m/s on a line tangential to the disk and jumps onto the outer edge of the disk.Calculate the change in linear momentum of the system consisting of the child plus the disk (but not including the axle), from just before to just after impact. (Assume the child is initially moving in the positive direction. Indicate the direction with the sign of your answer.)
The change in linear momentum of the child plus disk system just before and just after the impact is 86.4 kgm/s.
The mass of the disk in the playground is 32 kg and its radius is 1.7 m.
The child of mass 24kg runs tangentially to the disk at a speed of 2.7m/s.
Now, the initially just before the impact, the initial linear momentum of the boy plus disk system is,
P = Mass of child x speed
P = 24 x 2.7
P =64.8 kgm/s
Now, when the child engages with the disk, then finally just after the impact the speed of the system of child plus disk will be,
P' = Mass of system x speed
P' = (24+32) x 2.7
P' = 151.2 kgm/s.
Now, the change in linear momentum is,
Change in momentum = P' - P
Change in momentum = 151.2 - 64.8
Change in momentum = 86.4 kgm/s.
So the change in momentum of the system is 86.4 kgm/s.
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A child exerts a tangential 58.5 N force on the rim of a disk-shaped merry-go-round with a radius of 2.99 m.
If the merry-go-round starts at rest and acquires an angular speed of 0.1250 rev/s in 5.00 s, what is its mass?
A child exerts a tangential 58.5 N force on the rim of a disk-shaped merry-go-round with a radius of 2.99 m. mass of the rim is 1565 kg.
what is tangential force?Tangential force may be defined as the force which acts on a moving body in the direction of the tangent to the curved path of the body. If the velocity of the object is positive, then the acceleration will be negative. Σ F = m a the equation shows how an unbalanced force must be acting to cause negative acceleration or deceleration.
torque = force×perpendicular distance
torque=moment of inertia×angular acc
{mr²/2 }× {0.1250÷5}=2.99×58.5
on solving this eqn we get mass as 1565kg
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Is the heat energy present in the interior of the Earth?.
The heat energy present in the interior of the earth is called geothermal energy.
It is the energy produced deep inside the core of the earth. Geothermal energy can be harnessed for use as heat and electricity as it is a clean, renewable resource. Here, Geo means “earth,” and thermal means “heat” in Greek.Geothermal energy is that renewable energy source where, heat is continuously produced deep inside the earth. People use to heat buildings, geothermal heat for bathing, and to generate electricity.Hence, the heat energy present in the interior of the Earth is called geothermal energy.
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in drinking soda or water through a straw, we make use of group of answer choices bernoulli's principle. surface tension. no answer text provided. atmospheric pressure.
In drinking soda or water through a straw, we make use of atmospheric pressure; option C
What is pressure?Pressure is the force exerted per unit area on the surface of an object.
Mathematically;
Pressure = force exerted / unit areaThe pressure due to gases is a result of the molecules of the gas colliding with one another and with the surface of their container.
The atmospheric pressure is the pressure due to the weight of molecules of gas above us.
When using a straw to drink water or soda, the sucking action results in a decrease in pressure, hence, the atmospheric pressure will force the liquid up the straw.
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f the amplitude of a simple harmonic oscillator is decreased (initial spring stretch), which of the following quantities will change the most ? maximum speed maximum acceleration total mechanical energy
The correct answer is : Option E : total mechanical energy
What is amplitude of a simple harmonic oscillator?
Any location (in our case, the x location) as a function of time, with the following two components, can be used to express simple harmonic motion: Amplitude: The distance between the motion's center and either extreme. Period: The length of time it takes for a motion to complete one cycle.
The greatest deviation from the mean position is the amplitude of oscillation for a body that oscillates. It is the distance between the peak or trough of the wave and its mean position. The loudness of a sound will increase with increasing sound wave amplitude.
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which of the following equations shows an incorrect relationship between pressures given in terms of different units?
Different units of pressure is: Pascal, dyne/cm², pounds per square inch.
What is pressure?The physical force applied to an object is referred to as pressure. Per unit area, a perpendicular force is delivered to the surface of the objects. F/A is the fundamental formula for pressure (Force per unit area). Pascals are a unit of pressure (Pa). Absolute, atmospheric, differential, and gauge pressures are different types of pressure.
Hence, Pressure = Force/area.
Atmospheric pressure is measured in atm, bar, millimeters of mercury or inches of mercury (used to measure blood pressure), torr, MSW, and FSW, as well as centimeters of water.
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A log weighing 890 lb is lifted by a pair of tongs as shown. Determine the forces exerted at Eand Fon tong DEF. (Round the final answers to two decimal places.) 1.5 in. 1.5 in. 3 in. 3 in. OON A B 2.5 in. 3.5 in. 12 in. - 12 in. Ib→ The force exerted on Eis The force exerted on Fis 3 9.2°.
A log weighing 890 lb is lifted by a pair of tongs as shown the forces exerted at E and F on tong DEF are 703.695 lb.
P= w= 890 lbM= fg = 0890 - FAC (5/ 7.81 ) - FBC ( (5/ 7.81) = 0 Mfg = 0 FAC = FBD = 695.112 lbfg= gy = 890/2 = 445 lbEx- Fx - fbd (6/7.81) = 0Ey = 0As per the solution the ∅ = 39.23 °And force = 703.695 lb.E= 10.79 lb.Ey = 0Fx= 545.125 lb.F = 703.695 lb. ∅ = 39.23 °Read more about log :
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in the figure, a ball hangs by a very light string. what is the minimum speed of the ball at the bottom of its swing (point b) in order for it to reach point a, which is 1.0 m above the bottom of the swing?
0.33 m/s is the minimum speed of the ball at the bottom of its swing (point b) in order for it to reach point a, which is 1.0 m above the bottom of the swing.
distance=1 m
v=?
time= 3 second
velocity =distance/time
velocity=1/3
velocity=0.33 m/s
When describing how quickly something moves or how much its location changes over time, the scalar variable speed can be utilized. It is frequently abbreviated to "s." By dividing the entire distance traveled by the period's duration, the average speed of an object is determined.
The unit of measurement for speed is time divided by distance. Although the unit of speed most frequently employed in daily life is the kilometer per hour (kph), the meter per second (m/s) is the SI unit of speed.
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A baseball is thrown directly upward at time t=0 and is caught again at time t=5s. Assume that air resistance is so small that it can be ignored and that the zero point of gravitational potential energy is located at the position at which the ball leaves the thrower's hand.
When the ball reaches maximum height it will have zero kinetic energy. When the ball begins to fall its kinetic energy again starts to increase. So it will have maximum kinetic energy at t= 5s.
What is kinetic energy?Kinetic energy (KE) can be described as the energy possessed by a moving object because of its motion. Work done must be equal to change the kinetic energy. The kinetic energy of the object is represented as K.E = ½ mv² where ‘m’ is the mass and ‘v’ is the velocity.
Potential Energy (P.E) can be defined as the energy that is stored by an object due to its position and is equal to P.E = m×g×h where ‘m’ is the mass, ‘h’ is the height and g is the acceleration due to gravity.
The kinetic energy of the baseball is maximum at time t=0. When the baseball reaches maximum height its kinetic energy is equal to zero. When the ball starts to fall its kinetic energy again starts to increase. So it has maximum kinetic energy at t= 5s.
The complete question is : A baseball is thrown directly upward at time t= 0 and is caught again at time t=5s. Assume that air resistance is so small that it can be ignored and that the zero point of gravitational potential energy is located at the position at which the ball leaves the thrower's hand.
Sketch a graph of the kinetic energy of the baseball.
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monochromatic light falls on a screen 1.70 m from two slits separated by 2.05 mm. the first- and second-order bright fringes are separated by 0.550 mm. what is the wavelength of the light? nm
The wavelength of the light is 663nm.
What is double slit interference pattern?
The wave effectively separates into two new waves that each expand out from one of the slits as it travels through both openings. Then, there is interference between these two waves. The interference pattern is made up of alternate bright and dark lines; the bright lines are referred to as fringes. The wavelength in a double-slit experiment can be calculated using the following equation:
λ [tex]= yd / D[/tex]
where,
λ = wavelength of light source
D = distance between the screen and the slit
d = slit separation
Given,
[tex]y = 0.550 mm, d = 2.05 mm, D = 1.70m[/tex]
Subsituting the values in equation:
λ [tex]= yd / D[/tex]
λ = [tex](0.550* 10^{-3} )(2.05* 10^{-3}) / 1.70[/tex]
λ [tex]= 663nm[/tex]
The wavelength of the light is 663nm.
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write an expression for a harmonic wave with an amplitude of 0.19 mm , a wavelength of 2.3 mm , and a period of 1.6 ss . the wave is transverse, travels to the right, and has a displacement of 0.19 mm at t
The displacement that the wave travels is y = sin{5.23t - 2.42x + (π/2)}.
As we know that the wave equation is given as
y = A sin(ωt - kx + Φ₀)
now we have
A = 0.19 m
λ = 2.6 m
so we have to find k for the wave equation for displacement
k = 2π/λ
k = 2π / 2.6
k = 2.42 rpm
also we have the time as
T = 1.2 s
So, we have the ω as
ω = 2π / t = 2π / 1.2
ω = 5.23 rad/s
now we know that at t = 0 and x = 0 wave is at y = 0.19 m
so we have
Φ₀ = π / 2
Now the wave equation will be given as
y = sin{5.23t - 2.42x + (π/2)}
Therefore, the displacement that the wave travels is y = sin{5.23t - 2.42x + (π/2)}.
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find p(t) , the x component of the total momentum of the system at time t . express your answer in terms of m1 , m2 , v1(t) , and v2(t) .
The x-component of the total momentum of the system at time t can be expressed as [tex]m_{1} v_{1} (t)+ m_{2} v_{2} (t)[/tex] in terms of m1 , m2 , v1(t) , and v2(t) .
The momentum of the body is represented as the product of its mass and velocity;
p= m×v
Where, m is the mass of a particle and v is its velocity
The momentum of the whole system is the vector sum of individual momentum of all the particles, which can be represented as
[tex]p_{net}[/tex]=[tex]p_{1}[/tex] + [tex]p_{2}[/tex] + [tex]p_{3}[/tex] +...
The X-component of the momentum of the system is:
[tex]p_{net}[/tex] (x) = [tex]m_{1} v_{1}[/tex](t)+ [tex]m_{2} v_{2}[/tex](t)
Hence, the total momentum of the system of particles will be [tex]m_{1} v_{1} (t)+ m_{2} v_{2} (t)[/tex].
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What are the 5 elements of realistic fiction?.
The five elements of sensible fiction: Fiction tales have a tendency to take region in the present or recent beyond.
Characters are involved in events that might manifest. Characters stay in places that would be or are actual.
The characters seem like real people with real troubles solved in a realistic manner. practical fiction creates imaginary characters and conditions that depict our international society.
To define four important tale factors: person, putting, plot, and topic. Literary elements are the foundational constructing blocks of all testimonies. students will discover ways to perceive six simple elements (placing, point of view, plot, man or woman, conflict, subject matter), and assess and examine whether a creator has used them.
A literary element refers to additives of a literary painting (individual, putting, plot, topic, body, exposition, finishing/denouement, motif, titling, narrative factor of view). these are technical phrases for the “what” of a work. Literary elements consist of plot, battle, character, putting, a factor of view, and topic. they are essential due to the fact they provide a framework for the author to tell their tale. They supply the reader with a manner to comply with the story and apprehend what's going on.
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which of the following tests is performed to measure the amount of elongation and the yield point of a metal?
Here are 3 alkali metals with physical and chemical similarity.
What is alkali metals?
Alkali metals are come from the fact that when these metals or their oxides dissolved in water.a basic solution results.
Three alkali metals -
1- hydrogen(H)
2-lithium(Li)
3-potassium(K)
Physical and chemical similarity of hydrogen -
-it is colourless and tasteless in nature.
-it is a combustible gas but not a supporter of combustion.
Physical and chemical similarity of lithium -
-it have a melting point of 180.54
-it is the lightest of all metals,with a density approximately half that of water.
Physical and chemical similarity of pottasium -
- this metal is soft and white with a silver lustre.
-it imparts a lavender colour to a flame, and it's vapour is green.
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an object so I see 20 m/s. how far does it travel in 10 seconds
Answer:
200 meters
Explanation:
We are given that the speed is the object is 20 m/s and we are asked to solve for the distance it goes in 10 seconds.
To do this we will use rate X time = distance
The rate = speed = 20 m/s
The time = 10 s
(20 m/s)x(10s)= 200 meters
Upon unit analysis we can see that our answer is in meters, and distance is indeed in meters, helping us know our answer is correct.
write out the equation for your line of best fit using variables from class. (example: y is distance, x is distance, t is time, etc). you will want to write y
The distance formula is given by:
d = √[(x₂ - x₁)² + (y₂ - y₁)²]
We want to find the distance between (a,b) and (x,y).
The center of the habitat is missing in the question.
Assuming the center is (a,b) where a and b are real numbers, then we can use the distance formula to obtain:
d = √[(x - a)² + (y - b)²]
For instance if the center of your habitat us (2,-1), then
d = √[(x - 2)² + (y + 1)²]
Therefore, the equation of line with distance formula can be written as
d = √[(x₂ - x₁)² + (y₂ - y₁)²]
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Moons of Jupiter Assignment The version of Kepler's Third Law that we used was p2 a3 and we noted it was applicable to the solar system. Actually, it applies only to an object orbiting the Sun (or a solar-mass star). By adding Newton's discoveries about gravity to Kepler's 3rd Law we can learn something about the mass of a body like the sun. Within our solar system, we will assume that the Sun is much more massive than Earth, or any of the other planets. In that case we can write Kepler's 3rd Law in a way that includes the force of gravity. p the period in Earth years a the semi-major axis in AU M the mass of the objects in solar units p2 More technically, M is the total mass of the system (in this case, the Sun+ the planet). Since the mass of the Sun is large compared to the mass of any of the planets, we are ignoring that the orbiting body has any mass because it is too small to have a significant effect. For this assignment, we want to apply Kepler's Third Law, as modified by Newton, to Jupiter and its Galilean moons. Our goal is to determine the mass of Jupiter Since it would take a long time to gather data about the orbits of the moons, we will use data gathered from others Orbital Period, Earth Days Maximum Distance, Jupiter Dia. Moon Name lo Europa Ganymede Callisto 1.7 3.5 7.2 16.7 4.7 7.5 13 Before you can use the same equation as you did for Mars, you have to account for units. The units are summarized in the follow table: gs Review View ·-·-·-·恒恒 솨 AaBbCcDdEe AaBbCcDdEe AaBbCcD AaBbCcDdE L. Worrmal Heading 1 Heading 2 E :-▼S. ,_if] No Spacing Units Needed Units You Have Quantity Earth Years AU Solar Masses Earth Days Jupiter Diameters kg (you will find this one) P (period) A (semi-major axis) Mass In analyzing these units, you can come up with a conversion factor that will allow you to find the mass of Jupiter in kg. Doing this for you, taking into account all these conversions, and solving for M (the mass of Jupiter in kg) the equation for Kepler's Third Law applied to the Galilean moons of Jupiter will become: (2.297 x 102%) Now you can use the data from Jupiter's moons without converting to AU and years to determine the mass of Jupiter. For example: A Made-up Moon has a period of 2 earth days and a semi-major axis of 22. Based on this, the mass of Jupiter would be (2.297 x 1026) = )2 (2.297 x 104) = 6.11 x 1029 kg M = Since this is a made-up moon, the value calculated will not match your values for the mass of Jupiter 1. Find the mass of Jupiter using the data from each Moon. Moon Name I0 EUROPA GANYMEDE CALLISTO Mass of Jupiter (kg) Average: 2. Determine the average mass of Jupiter from this data. Enter your numerical values in standard scientific notation with two decimal places. Use E format. For example, 1 2 Since this is a made-up moon, the value calculated will not match your values for the mass of Jupiter. Find the mass of jupiter using the data from each Moon. 1. Mass of Jupiter (kg) Moon Name IO EUROPA GANYMEDE CALLISTO Average: Determine the average mass of Jupiter from this data. Enter your numerical values in standard scientific notation with two decimal places. Use E format. For example, 1 x 105 would be entered as 1.00EO5. 2. 3. Your textbook gives the mass of Jupiter as 1.90 x 107 kg. How does your value compare to this value? What are some possible reasons for the difference between the values? 4. Note, your answers will be submitted via a quiz format.
Kepler's third law, p^2 is a^3, means that the square of the total time period of a planet's revolution the sun is directly proportional to the cube of its mean distance from the Sun.
What is Kepler's law ?The orbits of planets around the Sun are described by Kepler's laws of planetary motion, which he published between 1609 and 1619.
A planet's orbit is an ellipse with the sun at one of its foci. Equal areas are covered by the position vector r(t) from the sun to the planet in an equal amount of time. The semi-major axis of an orbital planet's semi-major period of revolution around the sun is proportional to the cube of that semi-major period's length.
They were essential in the discovery of dark matter in the Milky Way and have been used to forecast the orbits of several objects, including comets and asteroids.
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a string is wound around a hollow, cylindrical drum with a mass of 2 kg. it is then threaded through a solid pulley with the same mass and radius as the drum, and is pulled upward with a force f (see figure).
A string is wound around a hollow, cylindrical drum with a mass of 2 kg. it is then threaded through a solid pulley with the same mass then angular acceleration will be 37.5 rad/[tex]s^2[/tex]
Angular acceleration = (30×0.4)/2×(0.4[tex])^2[/tex] =37.5 rad/[tex]s^2[/tex]
A torque that does not result in an angular acceleration is called static. Here are a few instances of static torque:
Static torque can be applied in a number of ways, like pushing a closed door while it is still in place and pedalling a bicycle at a constant speed when there is no acceleration.
As a racing vehicle accelerates off the line, the drive shaft must be accelerating the wheels in an angular direction since the vehicle is moving quickly along the track.
Torque about centre line of cylinder
=F×R
=(30×0.4)Nm
Angular acceleration = (30×0.4)/2×(0.4[tex])^2[/tex]
=37.5 rad/[tex]s^2[/tex]
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two identical billiard balls are on a frictionless, horizontal surface. ball 1 has an initial velocity of 5.00 m/s in the positive x direction, and ball 2 is initially at rest. the balls collide, and, after the collision, ball 1 is moving at a speed of 2.00 m/s at an angle of theta = 30.0 below the positive x axis, as shown in the diagram
After collision, " 4.58m/s" would be the speed of the 2nd ball.
What is the speed of the ball 2 after collision?According to the question,
Before collision,
Speed of 1st ball = 5.00 m/s
After collision,
Speed of 1st ball = 4.35 m/s
By using the energy conservation, we get
Ef = 1/2mv₁² + 1/2mv₂²
⇒ 1/2mv² = 1/2mv₁²V + 1/2mv₂²
⇒ v² = v₁² + v₂²
v² = √(v₂² - v₁²)
By substituting the values, we get
⇒ v² = √(5²-2²)
= 4.58 m/s
What is friction?Between two surfaces that are sliding or attempting to slide over one another, there is a force called friction.
What is collision?In physics, collision, often known as impact, is the sudden, powerful coming.
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which device can determine whether a cable break or short exists and approximately how far down the cable it's located?
The device that determines a cable break or short exists is Time domain reflectometer.
What is a Time domain reflectometer?
The location of defects in transmission lines and coaxial cables can be found using a Time Domain Reflectometer (TDR). The TDR scans the transmission line with a low-voltage pulsed signal to look for any impedance-related reflections. No reflections will occur if there is no impedance mismatch over the entire length of the line, but if the transmission line is interrupted at a specific location, portion of the pulsed signal will be reflected back to the TDR. The TDR can pinpoint the precise position of a problem and determine its type, such as an open circuit, short circuit, or impedance mismatch, by monitoring the timing and propagation velocity of the received pulse.
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a package with a thermometer attached to the outside is released at the surface of the ocean (see sketch below). the package sinks with a constant velocity of 0.27 ft/sec. the package starts sinking when released at the surface of the ocean. the displacement of the package is defined by y(t) which has units of feet, and t is time. the temperature of the water is wt in units of of and is given by the equation below where the constant a
Displacement is a verb that denotes movement or displacement of an object.The definition of displacement is the modification of an object's position.
What is defined as a displacement?Displacement refers to the idea that something has moved or been shifted.The term "displacement" refers to a shift in an object's position.The shortest distance between two places of an object is determined to determine its displacement.Displacement may be either zero, negative, or positive.The distance between an object's original position and its ultimate position can be calculated in physics to determine displacement.v = dx/dt.
For a body performing SHM, the velocity is maximal at the equilibrium position and zero at the extreme locations, i.e. at x = A, where the value of displacement is maximum.To learn more about displacement refer
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