Answer:
None of the choices is appropriate.
Explanation:
The path of motion of a thrown javelin is an example of
The path of motion observed during the javelin throw is an example of curvilinear motion.
What is curvilinear motion?When an object is thrown at a particular angle, the motion of an object is curved i.e, called curvilinear motion.
Example: A stone thrown into the air at a particular angle.
The javelin throw is a sport with a track and field event where a spear of 2.5m in length is thrown into the air at a particular angle. Thus considered an example of curvilinear motion
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How might the emergence of millions of cicadas at once benefit the cicadas?
The emergence of millions of cicadas benefits.
Cicadas are a source of food. Cicadas are consumed by a large number of people worldwide, not just "on a dare," but also as a delicacy or staple meal. For instance, cicadas have been on Bizarre Foods with Andrew Zimmern more than once. Native Americans consumed cicadas as well, and in at least one instance, doing so helped a group survive difficult times. Insectivore gourmets should, however, rely on readily cultivatable insects like crickets, waxworms, and mealworms as cicadas are typically not a sustainable food supply.Cicadas serve as a source of inspiration for musicians and artists. Numerous songs have been influenced by cicadas, and there are albums and bands named after them.To know more about Cicadas visit : https://brainly.com/question/14927697
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How could you determine whether your spaceship is at rest or moving at constant velocity?
You cannot determine at all if the spacecraft's velocity is constant.
According to Einstein's theory of relativity, there is no experiment that could possibly provide the information you need to determine this.
More than that, it's not even a meaningful statement. There is equality among all inertial coordinate frames. Therefore, it is pointless to even inquire as to whether you are going at a constant speed. Even if you can see the Earth beneath you and that you are not moving relatively to it, by looking out the window, you cannot determine whether the Earth itself is moving.
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The rigid beam is supported by a pin at c and an a992 steel guy wire ab of length 6 ft. If the wire has a diameter of 0. 2 in. , determine the distributed load w if the end b is displaced 0. 12 in. Downward. The wire remains elastic.
The length by which the guy wire stretches is; δ = 0.091 in
We are given;
Length of guy wire AB = 6ft = 72 in
Diameter of wire = 0.2 in
UDL = 200 lb/ft
From the free body diagram of the rigid beam system and the guy wire attached, we can say that;
Taking moments about point C gives;
∑Mc = 0; -(2000 * 5) + (F_BA * cos 30 * 10) = 0
-10000 + 8.66F_BA = 0
8.66F_BA = 10000
F_BA = 10000/8.66
F_BA = 1154.73 lb
Now, the length which it stretches is gotten from the formula;
δ = PL/AE
Where;
δ is change in length
P is Force
L is length of wire
A is area
E is modulus of elasticity of wire(steel) = 29000 ksi = 29000000 psi
A = πd²/4
A = π * 0.2²/4
A = 0.0314 in²
Thus;
δ = (1154.73 * 72)/(0.0314 * 29000000)
δ = 0.091 in
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Wich theorist believed in the collective consciousness
Answer:
I believe you are talking about Emile Durkheim
Explanation: Fun Fact:
He is most well known as the author of On the Division of Social Labor The Rules of Sociological Method, , and The Elementary Forms of Religious Life
A car moving from rest come in motion after 30 sec and again goes in rest for 0.2 second after some time the acceleration of the car goes to 5m/s^2 find the speed of the car
The final velocity of the car starting from rest with an acceleration of 5 u for 30 seconds is 150 m/s.
What are Newton's law of motion?Newton gave three laws of motion which can be utilized to find the velocity, acceleration and displacement of a body. These law are only applicable for constant acceleration.
What is acceleration?Acceleration is the physical quantity which represents change in velocity per unit time.
In simpler words it can be said as the increment or decrement in the velocity per second.
Given:
Total time taken 30 seconds
Acceleration of the car = 5 u
Initial velocity of the car = 0m/s
Here we have to find the velocity of the car after 30 seconds.
We already know all the basic values that are used for finding the value of final velocity.
Using Newton's first law of motion we have:
v = u + a × t
Where,
v is the final velocity of the car
u is the initial velocity of the car
a is the acceleration of the car
t is the total time taken to complete the displacement.
Substituting given values in Newton's first law of motion we get
Final velocity = 0 + 5 × 30
Final velocity = 0 + 150
Final velocity = 150 m/s
Therefore, the final velocity of the car starting from rest with an acceleration of 5 u for 30 seconds is 150 m/s
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What is the reactance of an inductor with an inductance of 3.10 h at a frequency of 81.0 hz ?
The inductive reactance is 1578.34 Ω.
We need to know about inductive reactance to solve this problem. The inductive reactance is the internal resistance in the inductor caused by changing current. It can be described as
XL = ω . L
where XL is inductive reactance, ω is angular speed and L is inductance.
The angular speed can be determined by
ω = 2π . f
where f is frequency.
From the question above, we know that
f = 81 Hz
L = 3.1
By substituting the given parameters, we get
XL = ω . L
XL = 2π . f . L
XL = 2π . 81 . 3.1
XL = 1578.34 Ω
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On how many days of the year is the sun directly overhead in tuscaloosa, alabama? remember, the sun is directly overhead only when the angle of incidence is 90 degrees.
Technically the answer would be 0 days. That means the for 0 days of the year the sun is directly overhead in Tuscaloosa, Alabama.
ReasoningThis is because only in the regions between the tropics of cancer and Capricorn can the sun be directly overhead. This is just the locations within 23.5 degree north 923.5 degrees South latitude.
Along with the fact that Tuscaloosa, Alabama is located at 33.20 degrees north latitude. Hence, the sun will never be directly overhead in Tuscaloosa throughout the year.
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What is the weight, in n, of an object with a mass of 200 kg at a location where g = 9.6 m/s^2?
The gravitational force applied on the object or weight of the object is equal to 1920 N.
What is weight?
The force exerted on an object by gravity is known as the weight of the object in science and engineering. The gravitational force acting on the any object is referred to as weight in several common textbooks. Some people refer to weight as a scalar quantity that measures the gravitational force's strength. Others define it as the strength of the force that mechanisms that counteract the effects of gravity impose on a body.
In order to calculate the object's weight we just needed to multiply its mass with the given gravitational acceleration. Then after inserting the values for m and g we can obtain the solution.
So, we get equation
[tex]F = m \times g[/tex]
Putting values in the equation,
[tex]F = 200 \times 9.6[/tex]
We get the force,
[tex]F = 1920 N[/tex]
Therefore, the weight of the object is 1920 N.
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please help i need it fast
How much charge is enclosed within the octahedron? express your answer with the appropriate units.
The change in charge in respect to the vacuum permittivity constant is referred to as the electric flow.
In other words, this expression might be represented numerically as
Ф=q/∈[tex]_{0}[/tex]
Here,
∈= Electric Flux
q = Charge
∈0 = Vacuum Permittivity
Replacing with our values and solving to find q, we have,
-1850N.[tex]m^{2}[/tex]/C=[tex]\frac{q}{8.854x10^{-2}C.N^{-1}.m^{-2} }[/tex]
q=-1.63799x[tex]10^{-8} C[/tex]
Therefore the charge is enclose within the octahedron with a charge of
q=-1.63799x [tex]10^{-8} C[/tex]
The charge of protons is positive (+).
The charge on neutrons is zero.
The charge of an electron is negative.
We just search for the protons and neutrons to determine the charge of an atom.
Two protons and two electrons are given to us.
Charges of +2 and -2 result in 0 charges.
It is a neutral atom, this one.
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What is the potential difference across each capacitor,if they are connected to a 12 v batter?
It is discovered that the capacitor’s potential difference increases to 4.0 V in one second.
Does a capacitor have a different potential across it?There is a potential difference (p.d.) between the plates of a capacitor when it is completely charged, and the larger the area of the plates and/or the smaller the distance between them (known as separation), the greater the charge that the capacitor can carry and the greater the capacitance.
How are differences in potential calculated?Divide the resistance present in the circuit by the current flow rate.
The resulting number, expressed in volts, is the potential difference. Ohm's Law, or V = IR, is the name of this equation.
What is the difference in potential between parallel capacitors?With several parallel capacitors, the potential difference is the same, but the charge increases. Similar to adding resistance in series, paralleling capacitors increases effective capacitance.
Effective capacitance is calculated as effective capacitance = capacitance 1 + capacitance 2.
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F = (-5.2,2.3), where all components are in newtons. if a vector's direction is measured counterclockwise from the positive x-axis, what angle (in degrees from 0-360) does f make?
F = (-5.2,2.3), where all components are in newtons. if a vector's direction is measured counterclockwise from the positive x-axis the angle (in degrees from 0-360) does f make 90.41.
A vector specifies the magnitude and direction of the quantity it is related to. Acceleration is the result of a velocity vector that changes over time. A body can be rotated by two or more forces, but the results of the rotation will vary.
A unit vector is defined as a vector with a specific direction and a magnitude of one unit.
F cosθ= -5.2,
F sinθ= 2.3
Please be aware that because the x component is negative, vector F lies in the second quadrant (plot points of F in graph to check)
thus, tanθ = 2.3/5.2
[tex]\theta= tan^{-1} (2.3/5.2)[/tex]
θ=0.41
Angle with positive y=axis=90-0.41
=89.59
and angle with positive x-axis=90+(90-theta)
=90+(90-89.59)
=90.41
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At what temperature (degrees fahrenheit) is the fahrenheit scale reading equal to (a) 3 times that of the celsius and (b) 1/ 3 times that of the celsius?
3 times that of the celsius = 80°F
1/ 3 times that of the celsius = -160°F/29 F
How is the Fahrenheit scale reading calculated?Fahrenheit scale = 9/5 (°Celcius) +32
a) 3 times that of the celsius
F = 3C
C= F/3
Fahrenheit scale = 9/5 (°Celcius) +32
= 3F/5 + 32
F - 3F/ 5 = 32
2F/5 = 32
2F = 160
F = 80° F
b) 1/ 3 times that of the celsius
F = 1/3 C
3F = C
F = 9/5( 3F) + 32
F = 27F/5 +32
5F-27F = 160
-22F = 160
F = -160°F/ 29
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A mass-spring system oscillates with an amplitude of 5.30 cm. if the spring constant is 246 n/m and the mass is 583 g, determine the mechanical energy of the system.
The energy that an object possesses as a result of its motion or position is known as mechanical energy.
What is mechanical energy?Mechanical energy is the energy that an object holds as a result of its motion or position. Potential energy and kinetic energy are two different kinds of mechanical energy (stored energy of position). In the physical sciences, mechanical energy is the sum of kinetic and potential energy. Mechanical energy is constant in an isolated system when only conservative forces are at work on it, according to the mechanical energy conservation principle.
A mass-spring system is, to put it simply, a spring system with a block suspended from or affixed to the spring's free end. Typically, the period of any harmonically moving object may be calculated using the spring-mass system.
The mechanical energy is equal to the potential energy of the spring at the maximum displacement (since v=0 at this point).
[tex]E = (1/2)kA^{2} = (1/2)(246N/m)(5.30 m)^{2}[/tex]
=3455.04j
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if a car starts from rest and moves with a uniform acceleration of 10m/s² for ten seconds, the distance covered in the last one second of motion is
Answer:
free pints for the doctor so don't provide it
If the atomic mass of neon is 20 amu, how much neon would be needed to have an avogadro's number of neon atoms?
By Avogadro's number, the mass of Neon atom is 20 grams.
We need to know about Avogadro's number to solve this problem. Avogadro's number is the number that explains how many carbon atoms are in one mol. The Avogadro's number is
Na = 6,02 × 10²³ atoms / mol
From the question above, we know that
Mr = 20
N = 6,02 × 10²³ atoms
By using Avogadro's number, we can calculate how much Neon atoms
N = n . Na
6,02 × 10²³ = gr / Mr . 6,02 × 10²³
gr / 20 = 1
gr = 20 grams
Hence, the mass of Neon atom is 20 grams.
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What is a Ice pack on a injury?
Conduction Convection Radiation
Conduction is the process by which ice packs transfer heat when put on an injury.
Both gel packs and ice packs mostly absorb heat by conduction, or by coming into close touch with the treatment region.
By producing vasoconstriction, which lowers blood flow to the damaged spot, ice minimizes edema, bleeding, and inflammation. By inhibiting pain receptors and nerve transmission, ice immediately reduces pain and muscular spasm.
Direct contact between the items is how heat is transferred during conduction. Convection is the process through which heat is moved within the fluid. Heat transmission in radiation happens by electromagnetic waves without the need of particles. The temperature differential causes the heat transfer to occur.
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A useful tactic for increasing capacity is to redesign a product in order to facilitate more throughput.
a. true
b. false
The given statement is true.
The design of the product should be changed in order to increase the capacity of product. Incorporating ideas like modular designs can make the process more efficient.
Modular design enables the customization, repurposing, upgrading, or maintenance of product designs. Furthermore, the modular product’s various components adhere to a common interface to seamlessly assemble into the final product. Numerous consumer goods, including automobiles, smartphones, laptops, and televisions, frequently feature modular design. Large websites, software engineering, and software product design are some further instances of modular design.
Modular designed products are easy to customize according to the needs of the customers, which eventually increase the sales and production.
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Two airplanes leave an airport at the same time. The velocity of the first airplane is 650 m/h at a heading of 16.9 ◦ . The velocity of the second is 590 m/h at a heading of 161◦ . How far apart are they after 1.8 h? Answer in units of m.
Distance of train after 1.8 h is 485.099 m
Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in ordinary language.
Distance of the first plane = 650 x 1.8 = 1170 m
Distance of the second plane = 590 x 1.8 = 1062m
The angle between 2 planes
161◦ - 16.9◦ = 144.1°
Using the law of cosine
d^2 = (1170)^2 + (1062)^2 - 2*1170*1062*cos 144.1°
d = 485.099 m
Hence, distance of train after 1.8 h is 485.099 m
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a mountain goat starts a rock slide and the rocks crash down the slope 100 m. If the rocks reach the bottom in 5 s, what is their acceleration?
If a mountain goat starts a rock slide and the rocks crash down the slope 100 m. If the rocks reach the bottom in 5 s, then the acceleration of the rock would be 8 meters/second².
What is acceleration?The rate of change of the velocity with respect to time is known as the acceleration of the object.
As given in the problem a mountain goat starts a rock slide and the rocks crash down the slope 100 m. If the rocks reach the bottom in 5 s,
initial velocity of rock = 0 m/s
displacement = 100 meters
time = 5 seconds
s = ut + 0.5at²
100 = 0 + 12.5a
a = 100/12.5
= 8 meters/second²
Thus, the acceleration of the rock would be 8 meters/second².
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5. Which descriptive term illustrates an inference?
(1) transparent
(2) younger
(3)bitter
(4)smooth
Pls helps pls help pls help pls help pls help
Answer:
That would be:
(2) younger
A solution is prepared by dissolving 10.2 g of glucose (c6h12o6) in 405 g of water. the final volume of the solution is 414 ml. find the concentration of the solution in units of molality.
the concentration of the solution in units of molality is 0.140m
The fact is Molality is defined as moles of solute per kilogram of solvent.
Find the glucose moles first. Consequently, glucose has a molar mass of 180.
10.2 grams of sugar. (180.6 g of glucose per mole) = 0.0566 moles
the grams of water are then converted to kilograms.
405/1000 = 0.405 kilogram
Hence, Molality = 0.0566/0.405
0.140m
Molality is a measure of the number of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with the definition of molarity which is based on a specified volume of solution
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pls could someone help me?
Calculate the change in the enthalpy of argon, in kj/kg, when it is cooled from 100 to 25oc. if neon had undergone this same change of temperature, would its enthalpy change have been any different?
The change in the enthalpy of argon Almost doubles
Explanation:
Argon
Cp = Specific heat at constant volume = 0.520 kJ/kgK
T₁ = Initial temperature = 75°C
T₂ = Final temperature = 35°C
Enthalpy,
Δh = CpΔT
⇒Δh = Cp(T₂-T₁)
⇒Δh = 0.520×(35-75)
⇒Δh = -20.8 kJ/kg
Neon
Cp = Specific heat at constant volume = 1.03 kJ/kgK
T₁ = Initial temperature = 75°C
T₂ = Final temperature = 35°C
Δh = Cp(T₂-T₁)
⇒Δh = 1.03×(35-75)
⇒Δh = -41.2 kJ/kg
Enthalpy will change because the Cp value is different.
Enthalpy almost doubles.
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If the magnitude of the electric field of an infinite plane of charge at point 10.0 m from the plane e = 100.0 n/c, what is the surface charge density?
The correct answer to the given question is that the surface charge density σ = 200ε₀C/m².
The electric field due to an infinite uniformly charged insulating sheet at any point in space around it is given by E=σ/2ε₀, provided that the point is not lying on the sheet itself. The quantity of charge per units of a two-dimensional surface area is known as surface charge density. It gauges the amount of electric charge that has collected on a surface. Its symbol is, and the SI system's unit is the Coulombs per square meter, or Cm-2.
Therefore, the surface Charge density= 2 * 100 N/C = 200ε₀C/m².
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Angular momentum is the rotational analog of linear momentum, found by taking the product of moment of inertia and ___________________.
Angular momentum is the rotational analog of linear momentum, found by taking the product of moment of inertia and The reciprocal of linear acceleration is angular velocity.
The right-hand rule, which uses the thumb to indicate the direction of angular velocity momentum and four fingers to represent the direction of motion, can be used to determine the direction of angular momentum.
Angular momentum is a characteristic that describes an object's rotatory inertia while it is moving about an axis that may or may not pass through it.
Torque is needed in rotational motion to cause an item to accelerate angularly. The distribution of the object's mass affects how much torque is needed to produce an angular acceleration. The value that describes the distribution is called the moment of inertia.
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Can an object experience uniform acceleration and uniform velocity at the same time?
Answer:
Explanation:
No, If An object is moving in a uniform velocity that means there is no change in velocity(speed) ,The object keeps on moving with the same speed .No change in speed means that thee is no acceleration encountered by the object. Even the Equations of motions support the statement.
The most immediate, but necessarily limited, source of energy for reformation of atp in muscle cells is:________
The most immediate, but necessarily limited, source of energy for reformation of ATP in muscle cells is creatine phosphate. When ATP is used for energy by the cells, it is broken down into ADP and inorganic phosphate. This process is reversible, but it requires energy to reform ATP from ADP and inorganic phosphate. The primary source of this energy is creatine phosphate, which donates a phosphate group to ADP to form ATP.
This process is called phosphocreatine resynthesis and it occurs in the mitochondria of muscle cells. Phosphocreatine is synthesized from creatine and ATP in a reaction that requires the enzyme creatine kinase. This reaction is irreversible, meaning that the synthesis of phosphocreatine from creatine and ATP cannot be used to generate ATP.
The amount of ATP that can be generated from phosphocreatine resynthesis is limited by the amount of creatine phosphate available in the muscle cells. Creatine phosphate is synthesized in the liver from creatine and ATP. It is then transported to the muscle cells where it is used for phosphocreatine resynthesis. The synthesis of creatine phosphate in the liver is a slow process and the amount of creatine phosphate in the muscle cells is limited.
The most immediate source of energy for reformation of ATP in muscle cells is therefore creatine phosphate. This source of energy is limited, however, and other sources of energy must be used to maintain ATP levels in the cells.
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A systems administrator needs to install a new wireless network for authenticated guest access. the wireless network should support 802.1x using the most secure encryption and protocol available
For enrolling authentication servers with server certificates for use with 802.1X authentication, you have two options: construct your own public key infrastructure using Active Directory Certificate Services (AD CS) or utilize server certificates enrolled by a public certification authority (CA).
The Active Directory Certificate Services (AD CS) server is a Windows server that is used to issue digital certificates. Certificates have been shown to be more secure and user-friendly than passwords. Microsoft recognized this and deployed AD CS to assist Microsoft environments in reaping the benefits of certificates. A client computer, on the other hand, trusts a CA when the CA certificate is loaded in the Trusted Root Certification Authorities certificate store. Multiple public CA certificates are installed by default in the Trusted Root Certification Authorities certificate store on Windows systems.
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