0.6 m long would a pipe, open at both ends, need to be to play the same fundamental frequency .
What is frequency ?
Frequency, in physics, the number of waves passing through a fixed point in a unit of time. Also, the number of cycles or oscillations per unit time experienced by an object in periodic motion. An object in periodic motion is said to undergo a cycle or oscillation after returning to its original state through a series of events or positions. See also angular velocity. A simple harmonious movement.
If the period or time interval required to complete a cycle or oscillation is 0.5 seconds, the frequency is 2 times per second. If the period is 1/100 hour, the frequency is 100 per hour. In general, frequency is the reciprocal of duration or time interval. That is, frequency = 1/duration = 1/(time interval). The frequency of the moon's orbit around the earth is just over 12 cycles per year. His A string on the violin has a frequency of 440 vibrations or cycles per second.
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Kareen weighs 800n and sits at a distance of 4m from the pivot of a seesaw. zaid weighs 1200n. where should zaid sit to make sure the seesaw is balanced
Zaid should be sit at 2.6 m from pivot to make sure the see-saw is balanced.
A force or force system can rotate an object. A moment is a rotational action of force. Moments act clockwise or counterclockwise around a point. The point you select can be any point on the object, but typically the pivot point is selected.
The question is also based on Moment . For the seesaw to be balanced the moment caused by the weigh 800N of Kareen must be equal and opposite to the moment caused by the 1200 N weigh of Zaid.
A moment formula is equal to M = F x d
where , M ---> moment in N-m units
F---> force in Newton
d---> distance in meters
firstly , we calculate the force (F) resulting from the mass of each person.
Use newton's 2nd law , F = m x a .
The moment of the Kareen can be calculated using M = F x d,
moment= 800 (force or weight) x 4(distance from pivot) so, M = 3200 N-m.
The moment of the zaid must be equal and opposite to 3200N , so we have
3200 (moment) = 1200(force or weight) x d (distance).
If we divide this equation by 1200 we get 3200/1200 = d
which gives the d = 2.6m.
Hence, Zaid must sit 2.6m from the pivot to balance the seesaw with the Kareen.
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two mas 412 9. Derive the mathematical formula of the following: a. Acceleration due to gravity on the surface of the earth b. Escape velocity c. Torque interms of I and a
Acceleration due to gravity on the surface of the earth
g=GM/r2
Escape velocity v = √GM/r
torque in terms of I and a τ = l*a
The definition of torque is the product of the force's strength and the angle at which the force's line of action is perpendicular to the axis of rotation. Torque can also be understood in terms of the law of conservation of energy. The lowercase Greek letter tau is frequently used as the sign for torque.The speed at which an object moves to escape the gravitational pull of a planet or moon without developing propulsion is known as escape velocity.The acceleration due to gravity value of 9.8 m/s2 means that the velocity of a body falling freely changes by 9.8 m/s every second.
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a rocket is launched from the ground and travels in a straight path. the angle of inclination of the rocket's path is 1.35 radians. (that is, the rocket's path and the ground form an angle with a measure of 1.35 radians.) what is the slope of the rocket's path? if the rocket has traveled 68 yards horizontally since it was launched, how high is the rocket above the ground? yards at some point in time the rocket is 455 yards above the ground. how far has the rocket traveled horizontally (since it was launched) at this point in time? yards
109.539 yards far has the rocket traveled horizontally (since it was launched) at this point in time.
In arithmetic, the slope or gradient of a line is quite a number that describes each path and the steepness of the road. The slope is frequently denoted through the letter m; there is no clear answer to the question of why the letter m is used for slope, however its earliest use in English appears in O'Brien (1844)who wrote the equation of an instant line as "y = MX + b" and it could also be discovered in Todhunter (1888) who wrote it as "y = MX + c".
This generalization of the idea of the slope allows very complicated buildings to be planned and built that pass nicely past static systems which might be either horizontals or verticals but can change in time, flow in curves, and alternate depending on the rate of alternate different factors. Thereby, the simple concept of the slope will become one of the fundamental basis of the current world in phrases of each era and the built surroundings. The slope of a line within the aircraft containing the x and y axes is normally represented via the letter m and is defined because the change inside the y coordinate is divided through the corresponding exchange within the x coordinate, between distinct factors on the road.
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HELP ASAP (this is science)
Changes in both biotic and abiotic factors in an ecosystem's food web may affect the members of the food web because they are in equilibrium (Option C).
What is the homeostatic state of internal equilibrium?In an ecosystem, the homeostatic state of internal equilibrium refers to the conditions required to maintain the stability of the food web, which are associated with biotic and abiotic conditions that interact in the ecosystem.
Therefore, with this data, we can see that the homeostatic state of internal equilibrium depends on both biotic and abiotic factors.
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a bicycle with wheels radius r is traveling with a linear velocity v and an angular velocity w. a second bicycle has the same linear velocity but wheels with twice the radius. what is the angular velocity of this bicycle's wheels?
The angular velocity of the second bike is twice the angular velocity of the first bike.
Let Linear velocity of bike 1=v
Let angular velocity of bike 1=w1
Let radius of bike 1 =r 1
Linear velocity of bike 2= v2(provided in the question)
Radius of bike 2= 2x Radius of bike 1 (provided in the question)
thus, radius of bike 2= 2 x r
let Radius be represented by R
Formula of angular velocity: 2π/t
Relation between angular velocity and linear velocity:
Linear velocity= angular velocity x Radius
v=w x R
Linear velocity of bike 1=v1=w1xR1
Let v1= v
Let R1= r
v=w1 x r
w1=v/r
Angular velocity of bike 1,
w1=v/r
Linear velocity of bike 2=v2=w2xR2
v2=w2xR2
v2=v1 (Provided in Question)
then, v2=v
R2=2 x R1 (Provided in Question)
then, R2= 2x r
R2=2r
then,
v2=w2xR2
putting values
v=w2x2r
w2=v/2r
w2= 1/2 x v/r
w2= 1/2 x(v/r)
w2=1/2 x(w1)
w2=2w1
Thus,
The angular velocity of the second bike is twice the angular velocity of the first bike
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how much force is needed to make an 8kg object acccccelerate at a rate of 3.2m/s on a surface witha frictional force of 2.1n
The force is needed to make an 8kg object accelerate on a surface with a frictional force of 2.1n is 27.7 Newtons.
F = m x a
where
F = force exerted
m = mass of the object
a= the acceleration
m = 8 kg
a = 3.2m/s²
F = 8 x 3.2 = 25.6 N
So, net force required to overcome this friction and accelerate the object = 25.6 + 2.1 = 27.7 Newtons
The given question is incomplete. complete question is :
how much force is needed to make an 8kg object accelerate at a rate of 3.2m/s² on a surface with a frictional force of 2.1n.
The force is needed to make an 8kg object accelerate on a surface with a frictional force of 2.1n is 27.7 Newtons.
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which of the following has the various objects listed in order from smallest to largest? the solar system; the milky way; the local group the local group; the milky way; the solar system the solar system; the local group; the milky way the milky way; the local group; the solar system the local group; the solar system; the milky way
The local group, solar system, and the milky way are ordered from smallest to largest.
The extent of the solar system is enormous—at least 100 astronomical units— (15 trillion km). The massive gravitational force of the sun, which maintains celestial bodies like planets and asteroids in orbit around it, holds it all together. Additionally, there are eight planets in the solar system, which are enormous, almost spherical bodies that follow elliptical orbits around the sun.
The apparent diameter of the Milky Way is thought to be between 100,000 and 200,000 light-years, yet its spiral arms are only approximately 1000 light-years thick (more at the bulge). According to recent calculations, a dark matter region with some visible stars may have a diameter of up to 2 million light-years.
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a bobsled team emerges from a downhill track onto a horizontal straight track intended to slow the sled to a stop. the total mass of the bobsled and team is 488 kg. they emerge with speed 54 m/s. if the frictional force slows them to a stop at a constant 3.1 m/s2, how much work is done on the bobsled team while they stop?
Work is done on the bobsled team while they stop is 13,176 Nm
Work, in physics, degree of electricity switch that happens when an item is moved over a distance with the aid of an outside pressure at the least a part of that is carried out in the route of the displacement.
Calculation:-
mass = 488 Kg
speed = 54 m/s
a = 3.1 m/s²
displacement
V² = U² - 2as
0 = 54 - 2× 3.1 S
S = 54/6.2
= 8.71 m
Work done = force × displacement
= mass × acceleration × displacement
= 488 × 3.1 × 8.71
= 13,176 Nm
The work done via a pressure is the made of the displacement and the issue of the implemented force of the item within the path of displacement. while we push a block with a little force. The body moves with some acceleration, and work is executed. The paintings finished by pressure are defined to be manufactured from a thing of the pressure within the direction of the displacement and the significance of this displacement.
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if the crate was at rest at the top of the incline and has a speed of 2.80 m/s at the bottom, how much work wf was done on the crate by friction? use 9.81 m/s2 for the acceleration due to gravity and express your answer in joules.
The Frictional Work output on crate is 27.468 J.
When the body is moved in the direction of the force, frictional force will produce positive work. Think of two blocks that are stacked on top of one another. A frictional force between the two blocks prevents the two blocks from sliding if the lower block begins to move slowly in one direction. In the same direction that the lower block is moving, this force acts on the upper block. Friction in this situation therefore produces positive work.Friction can actually do more harm than good. For instance, when a block is sliding over a rough surface, the frictional force acts in the opposite direction from the block's motion and attempts to stop it. The direction of the block's motion and the direction of the frictional force being in opposition to one another, the work done by friction is negative.V=2.80m/s W= VgtanxW= 2.80 x 9.81 x tan90W=27.468 JThe work done on crate by friction is 27.468 J.To study about Work output-
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Electronic relaxation, the change in molecular electronic structure as a response to oxidation, is investigated in [FeX4]2-,1- (X = Cl, SR) model complexes. Photoelectron spectroscopy, in conjunction with density functional methods, is used to define and evaluate the core and valence electronic relaxation upon ionization of [FeX4]2-. The presence of intense yet formally forbidden charge-transfer satellite peaks in the PES data is a direct reflection of electronic relaxation. The phenomenon is evaluated as a function of charge redistribution at the metal center (Δqrlx) resulting from changes in the electronic structure.
It is found that electronic relaxation is very large for both core (Fe 2p) and valence (Fe 3d) ionization processes and that it is greater in [Fe(SR)4]2- than in [FeCl4]2-.
What is Photoelectron spectroscopy?When attempting to ascertain the various positions of an electron within an atom, the term "photoelectron spectroscopy" refers to a specific sort of spectroscopic technique. Because of this, when examining the valence shell, it is necessary to consider the electron's ionisation energy.By measuring the relative energy of electrons in atoms and molecules, the experimental method of photoelectron spectroscopy (PES) is used. PES is frequently used by scientists to examine the atomic structure of materials or to describe molecular bonding.UV photoelectron spectroscopy (UPS) and X-ray photoelectron spectroscopy are typically used as the field's two arbitrary classifications (XPS). The names are based on the energy of the photons that were used in that specific spectroscopy.To learn more about Photoelectron spectroscopy refer to:
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a ruby laser emits light of wavelength 694.3 nm. if this light is due to transitions from the n 2 state to the n 1 state of an electron in a box, find the width of the box.
The width of the box is 0.795nm.
Solution:
d = 694-3x[tex]10^{-9}[/tex]m.
The energy [tex]\left[\begin{array}{ccc}E_{n} =\frac{h^{2} n^{2} }{smL^{2} } \end{array}\right][/tex]
Transition energy is related to the emitted photon
wavelength by ΔE = [tex]\frac{h^{2}c^{2} }{8mc^{2 }L^{2} } (2^{2} -1^{2} ) = \frac{hc}{h}[/tex]
∴ L = [tex]\sqrt{\frac{3hch}{8mc^{2} } }[/tex]
= [tex]\sqrt{\frac{3*1.24*10^{3}*694.3 }{8*511*10^{3} } }[/tex]
= 0.795 x [tex]10^{-9}m[/tex]
= 0.795nm.
The first dimension is to measure its length. The length is always the longest side of the flapped box. The next dimension is width. The wide side also has a flap, but it is always shorter on the side than the length. To find the width, multiply the specified length by 2 and subtract the result from the girth.
Now you know the total length of the remaining two pages. Divide this number by 2 to get the width. For a standard box, length is the longer of the two sides width is the shorter of the two sides and height is the vertical dimension from top to bottom.
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If a wave has a wavelength of 50 m and is traveling through water that is 30 m deep, what kind of wave is this?.
The wave's wavelength in this instance is 50 m, while the water's depth is 30 m.
Since half of the wave's wavelength is 25 m., the water's depth is greater than half of the wave's wavelength. Consequently, the wave is one that occurs in deep water.
Let's first understand waves so we can better understand travelling waves. A wave is a disturbance in a medium that propagates while transferring momentum and energy without the medium itself moving. However, the medium needs to be elastic. There are many examples of waves in daily life, such as ocean waves, musical instrument strings, etc. A wave that travels through the medium, on the other hand, is one in which the minimum and maximum amplitude positions are stationary.To know about wave's wavelength -
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light strikes a sodium surface, causing photoelectric emission. the stopping potential for the ejected electrons is 5.0 v, and the work function of sodium is 2.2 ev. what is the wavelength of the incident light?
The energy of an incident photon is E=hf, where h is the Planck constant, and f is the frequency of the electromagnetic radiation. The kinetic energy of the most energetic electron emitted is
Km =E−Φ=(hc/λ)−Φ
where Φ is the work function for sodium, and f=c/λ, where λ is the wavelength of the photon. The stopping potential Vstop is related to the maximum kinetic energy by eVstop =
Km,so
eVstop = (hc/λ)−Φ
and
λ= hc / eVstop+Φ = 1240eV⋅nm / 5.0eV+2.2eV = =170nm
Here eVstop =5.0eV and hc=1240eV⋅nm are used.
Note: The cutoff frequency for this problem is
f0 = hΦ (2.2eV)(1.6×10 −19J/eV) / 6.626×10 −34 J.s = 5.3×10 14Hz
The wavelengths of the visible mild range between 400-700 nanometers, that is among the infrared having longer wavelengths and the ultraviolet having shorter wavelengths. The wavelength of the visible mild suggests that its frequency is about 430-750 terahertz (THz).
The wavelength of light is the space between corresponding factors in two adjoining mild cycles, and the frequency of mild is the quantity of cycles of mild that skip a given factor in a single second.
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at an instant when the induced current in the circuit is counterclockwise and equal to 1.73 a , what is the magnitude of the velocity of the bar?
The magnitude of the velocity of the bar at an instant when the induced current in the circuit is counterclockwise and equal to 1.73 A is 24.62 m / s
I = B l v / R
I = Induced current
B = Magnetic field
l = Length of bar
v = Velocity
R = Resistance
I = 1.73 A
B = 1.34 T
l = 0.293 m
R = 5.55 Ω
v = I R / B l
v = ( 1.73 * 5.55 ) / ( 1.34 * 0.293 )
v = 9.6 / 0.39
v = 24.62 m / s
Therefore, the the magnitude of the velocity of the bar is 24.62 m / s
The given question is incomplete. The complete question is :
A 0.293m -long bar moves on parallel rails that are connected through a 5.55 Ω resistor, as shown in the following figure (Figure 1) , so the apparatus makes a complete circuit. You can ignore the resistance of the bar and rails. The circuit is in a uniform magnetic field 1.34T that is directed into the plane of the figure. At an instant when the induced current in the circuit is counterclockwise and equal to 1.73 A, what is the magnitude of the velocity of the bar?
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what is the total (kinetic plus potential) energy of the international space station orbiting the earth?
The total energy of the international space station orbiting the earth is -μ/2a.
The total energy is the sum of kinetic energy and potential energy.
E = [tex]E_{k}[/tex] + [tex]E_{p}[/tex]
= v²/2 - μ/r
= -1/2 μ²/ h² (1-e²)
= -μ/2a
Here v = relative orbital velocity
r = orbital distance between the bodies
μ = G(m1 + m2) = the sum of the standard gravitational parameters of the bodies.
h = specific relative angular momentum in the sense of relative angular momentum.
e = orbital eccentricity
a = semi-major axis
Therefore we get the total energy is -μ/ 2a.
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A train is traveling at 30 m/s. How long does it take for the train to travel 60,000 m (60 km)?
A. 0.33h
B.0.5h
C. 33h
D. 0.56h
Answer:
0.5h
Explanation:
The train is traveling 30 m/s, which is 67.1080888 mph.
The train is traveling 60 km, which is 37.2823 miles.
37.2823 miles / 67.1080888 miles per hour = 0.55555597941 hours
0.5 Hours
a spring is compressed 5.0 cmcm. part a how far must you compress a spring with twice the spring constant to store the same amount of energy?
To find the springs compression, calculate the compression.
What is compression?
compression is the term for the reduction in volume of any item or material brought on by stress. Solids, liquids, gases, and living systems can all experience compression.
What is the purpose of a compression spring?
Automotive compression spring applications include springs in the seats that conform to the body and improve comfort, springs in the suspension that soften the impact of the road as the car travels, and even springs that support the automotive hoses.
The distance by which you compress a spring with twice the spring constant to store the same amount of energy is; 0.7071 times the initial distance of compression.
Therefore, the spring constant is store the same amount of energy is; 0.7071 times the initial distance of compression.
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the passanger liners Carnival Destiny and Grand Princess, built recently, have a mass of about 1.0x10^8 kg each. How far apart must these two ships be to exert a gravitational attraction of 1.0x10^-3 N on each other?
The correct answer is two ships are at distance of 2.6 Km.
What does gravity mean?
The force of attraction between any two bodies is directly proportional to the product of their masses and is inversely proportional to the square of the distance between them, according to Newton's universal law of gravitation.
Given, m1=m2=1.0 ×10^8kg
Fg=1.0 ×10^−3N
G=6.673 ×10^−11(N•m2 / kg ²) (We all know)
Gravitational Force, F = G × [M1M2]/r2
Putting all the above data in our formula
r= √(Gm_1m_2/ Fg )
Distance = 2.6 x 10^4 m = 2.6 Km.
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A cyclist traveled 8 kilometers per hour faster than an in-line skater. In the time it took the cyclist to travel 65 kilometers, the skater had gone 39 kilometers. Find the speed of the skater.
The speed of the skater is 22km per hour.
What is speed?
speed is simply defined as The rate of change of position of an object in any direction.
Sol-so a cyclist is traveling 11 km/h faster than an incline skater. And the time it took the Travis the cyclists go, 18 km skater has gone nine, find the speed of the skater. Okay, so let's translate this like solving for X is Okay, let's say X is the speed of the skater. Um And then cyclists speed would be why uh the cyclist went faster than in line. So that would make 11 faster. That'd be like X plus 11. So, The cyclist is skater and 11 more. Cool. Okay, it took the cyclist 18 km. It took the skater, nine km the same amount of time. Okay, so what does that mean? Well, 18 divided by nine is to, so basically that means the the cyclist is well twice as fast as the as a skater really. And now we have these to form these ones, notice they both say y equals and that means well, since these wires are really the same thing, they're both the speed the cyclists, that means that you can actually just make both sides equal to each other. Um I'm sorry. That should be an equal sign. Why equals X plus, I love it. All right. And now you subtract X from both sides and then you find out that well, X is 11. So, that is the speedof the skater. The skater is going 11 kilometres ah for our um And that would mean the
Thus,
cyclist is going 22 kilometres per hour.
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a horizontal force of 8,000 newtons is required to pull a 2,548 kilogram truck across the floor at constant speed across the road. what is the coefficient of kinetic friction?
The coefficient of kinetic friction is 0.314.
Friction is the force resisting the relative motion of sturdy surfaces, fluid layers, and material factors sliding towards each specific. There are numerous styles of friction: Dry friction is a strain that opposes the relative lateral movement of two stable surfaces in touch.
Calculation:-
Force = 8000 N
mass = 2548 kg
a = f/mass
= 8000 / 2548
= 3.14 m/s²
Force = μkN
N = mg
= 2,5480 N
μk(coefficient of kinetic friction) = Force / N
= 8000/ 2,5480
= 0.314
Friction is the shape of contact pressure. It exists between the surfaces that are in touch. The frictional force relies upon the character of the floor in contact. The rougher the ground, the extra friction is involved. The frictional force is proportional to the urgent pressure, which is the burden of the body. it's miles impartial of the place of the touch.
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as the current in the wire increases, the magnetic field around the wire increases in magnitude without changing its direction. does this affect the flux through the loop, and if so, how?
The area around a magnetic body or moving charge on which a magnetic force acts. When the magnetic field changes with time, an electric field is induced in the closed loop.
According to Faraday's law, the EMF is induced in the coil when the magnetic field, area and angle change.
Flow rate can be expressed as the flow rate of liquid, radiant energy, or particles in a given area.
Flux is the scalar product of the magnetic field in the region
Ф = ∫ B. dA
where B is the magnetic field and A is the area
Let's look at the factors that influence the flow at rest
The value of the magnetic field varies either in time or space
Wax area changes and the arc fits in the size
angle between the magnetic field and the surface changes
Flux is an analysis of the total magnetic field traveling within a given magnetic field.
Magnetic flux is what creates a magnetic field around a magnetic body.
The SI unit of magnetic flux is Weber.
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The aircraft lands with a velocity of 71 m/s.
The mass of the aircraft is 3.6 × 105 kg.
Calculate the kinetic energy of the aircraft as it lands.
Answer:
Explanation:
Given:
V = 71 m/s
m = 3.6·10⁵ kg
___________
Ek - ?
Kinetic energy
Ek =m·V²/2
Eki = 3.6·10⁵·71² / 2 ≈ 907·10⁶ J = 907 MJ
do the temperature patterns under a) low emissions and b) high emissions differ from the medium emissions model? if so, how?
The temperature patterns under low emissions and high emissions differ from the medium emissions model by having different temperature rise.
A temperature pattern describes the temperature of a place in Earth. It is highly influenced by the strength of the sun. The strength of the sun is highly dependent upon how high it rises in the sky during the day. It is also influenced by the emissions in the area which is responsible for global warming.
As the name suggests low emission model has lower emission, high emission model has high emission and medium emission model will have medium emission. As emission increase, the temperature will also increase. So there will be different temperature patterns in all these models.
Therefore, the temperature patterns under low emissions and high emissions differ from the medium emissions model.
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directions on file pls help
√10 N Force is the resultant Force in the given diagram.
3N towards north
1 N towards West
Resultant= √3²+√1²
Resultant= √10 Newton
Every action that attempts to maintain, modify, or change the motion of a body is referred to as a force in mechanics. In his Principia Mathematica, Isaac Newton frequently used his three laws of motion to demonstrate the concept of force (1687).
According to Newton's first law, a body will remain in either its resting or equally moving condition along a straight route in the absence of an external force. The second law states that when an external force acts on a body, the body accelerates (changing velocity) in the direction of the force.
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5.what are typical operating temperatures (or at least the temperature available that can produce power) and pressures for orc?
55°C (131°F) is typical operating temperatures (or at least the temperature available that can produce power) and pressures for orc.
Heat or cold is measured in terms of temperature. It demonstrates how heat energy naturally flows from a hotter body to a cooler body and may be expressed in terms of any number of arbitrary scales (one at a lower temperature). A match is burning at a far greater temperature than an iceberg, yet an iceberg has a substantially higher total heat energy than a match. Temperature is not the same as the energy of a thermodynamic system.
Temperature, along with pressure, density, and other like qualities, is referred to as an intense property as opposed to extensive features, such as mass or volume—one that is independent of the quantity of stuff being addressed.
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when a rifle is fired, which force is bigger? force on bullet, force on rifle, or would the magnitudes of these forces be the same?
What is magnitude?
Magnitude is a term used in physics to describe an object's maximal size and direction. Scalar and vector quantities both employ magnitude as a common factor. We are aware that scalar quantities are those that have just magnitude by definition. Those quantities with both magnitude and direction are considered vector quantities.Magnitude can be used in a variety of contexts. Among them are:
earthquake's magnitudeCharge density on an electronStrength of the forceSize of the displacementGravitational force strengthAn earthquake's size is measured in terms of its length, breadth, and width. It is calculated based on the earthquake's actual size.
However, A single magnitude is thought to exist for an earthquake.
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a mass is given a kick so that it slides up a ramp, (with friction). after the mass reaches its highest point, it slides back down. however, the magnitude of its acceleration is less on the descent than on the ascent. why? (assume that the angle of the ramp is large enough that when the mass momentarily stops at its highest point the force of static friction is insufficient to keep it there.)
The magnitude of the rock's acceleration a' is less on the descent than on the ascent.
Solution:
mass = m, angle of the ramp = A, friction force = f
when it is going up, net force F = mgsinA + f
acceleration a = F/m = gsinA + f/m
when it is going down, net force F' = mgsinA - f
acceleration a' = F'/m = gsinA - f/m
so a' < a
The magnitude of the rock's acceleration a' is less on the descent than on the ascent.
Push the blocks to slide up the ramp. After the block reaches the highest point, it slides down, but the magnitude of the acceleration is less on the descent than on the rise. Friction and gravity work together. Blocks decelerate rapidly. Descent Friction and gravity work in opposite directions. The block accelerates slowly. It doesn't take long to slide.
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How does magnetic force affect the energy in a system of magnets when the magnets are released and begin to move?.
When two magnets in a system are released and begin to move, the magnetic energy brings about kinetic energy.
The magnets that are mentioned here surely have some mass. The magnetic force here is the force that is exerted by a magnet in the region around it and can be attractive or repulsive.
When a magnet is pulled and then released, it overshoots and starts jumping back and forth, losing a bit of energy during this jumping. This loss of energy results in the increase of kinetic energy in the system, by converting potential energy to kinetic energy.
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A ball is thrown vertically upward with an initial velocity of 29. 4 meters per second. What is the maximum height reached by the ball? [neglect friction. ].
Answer:
44 m
Explanation:
vf = velocity at highest point = 0
vf = vo + at
0 = 29.4 + (-9.81 )t shows t = ~ 3 s
d = vo t + 1/2 a t^2
d = 29.4 ( 3) + 1/2 ( -9.81)(3^2 ) = 44 m
A certain solid substance that is very hard, has a high melting point, and is nonconducting unless melted is most likely to be.
Answer:
NaCl (Sodium Chloride)
Explanation:
This is the answer
