Answer:
Independent variable is the variable that causes the changes in the experiment. Dependent variable is the variable that is affected by the changes.
Explanation:
A roofer tosses a hammer horizontally off a
3.35 m high roof at 8.94 m/s. How far away
from the base of the house does it land?
But the query isn't complete. The hammer traveled 4.26 meters horizontal distance
we have following the given data
Hammer speed is 4 m/s.
30° is the angle the roof makes with the horizontal.
Roof's minimum height above ground is equal to 10 m g/10 m/s2.
Find the hammer's horizontal distance traveled.
Considering the vertical y-direction to establish the Time (t)
s = ut + 1/2at²
-10 = -4×sin30×t + 1/2×10t²
10 = 2t + 5t²
5t² + 2t - 10 = 0 (i)
Resolve equation (i)
t = 1.228 sec
This formula is used to compute the horizontal distance.
4 (cos 30°) t = 4×cos 30×1.228 = 4.26 m
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Answer:
7.39
Explanation:
plug in the right numbers and solve
What is the symbol, atomic number, # of protons, # of electrons, atomic mass, rounded atomic mass, # of neutrons (show work), and period of: calcium
The properties of Calcium are as follows:
symbol = Caatomic number = 20number of protons = 20number of electrons = 20atomic mass = 40.078 urounded atomic mass = 40 amunumber of neutrons = 20period: period 4What are elements?Elements are defined as any substance which cannot be split into simpler units aby a ordinary chemical process.
Elements are the building block of all forms of matter.
Calcium one of the known 118 elements.
In the period table, Calcium has the following properties:
symbol = Caatomic number = 20number of protons = 20number of electrons = 20atomic mass = 40.078 urounded atomic mass = 40 amunumber of neutrons = 20period : belongs to period 4In conclusion, calcium is an element in the periodic table.
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In a linux machine, what command can you use to safely terminate a process with a pid of 342?
Sending the SIGTSTP signal will halt or suspend a running process. kill -TSTP 342; is the command.
What is linux machine?
The local system's distinctive machine ID, which is specified at installation or boot, is stored in the /etc/machine-id file. The machine ID is a single, 32-character, lowercase, hexadecimal ID that ends with a newline. This is equivalent to a 16-byte/128-bit value when decoded from hexadecimal.
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Water flows at a rate of 3.11 kg/s through a hose with a diameter of 3 cm. what is the speed of the water in the hose?
Water flows at a rate of 3.11 kilograms / seconds through a hose with a diameter of 3 centimetres. then the speed of the water in the hose would be 4.40 meters / second.
What is Velocity?The total displacement covered by any object per unit of time is known as velocity. The velocity of an object depends on the magnitude as well as the direction of the object.
As given in the problem if Water flows at a rate of 3.11 kg/s through a hose with a diameter of 3 cm.
Area of the hose = πD²/4
=3.14*3*3/40000
=7.065×10⁻⁴ meter²
The discharge of the water = 3.11/1000
=3.11×10⁻³ meter³
The discharge of the water = area of hose ×velocity
3.11×10⁻³ meter³ = 7.065×10⁻⁴ meter²×velocity
velocity = 3.11×10⁻³ / 7.065×10⁻⁴
=4.40 metes/ second
Thus,the speed of the water in the hose would be 4.40 metes/ second.
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If is an oriented surface with boundary , and if is a vector field on , can you compute by using stokes' theorem to replace it with the line integral of some other vector field along ?
Yes, we can compute by using stokes' theorem always.
By merely knowing information on the values of F along the border of S, Stokes' theorem states that we can compute the flux of curl F across surface S. On the other hand, by converting to a double integral of the curl of F over S, we may get the line integral of vector field F along the edge of surface S.
Let S be an N-unit normalized smooth surface that is orientated. Additionally, let's assume that S has a simple closed curve C as its border. If the surface is constantly on your left while you walk in the positive direction around C while directing your head in the direction of N, then the orientation of S induces the positive orientation of C. In light of this concept, we can say Stokes' theorem as,
[tex]\int\limits^0_c {F.} \, dr = \int\limits^0_s {F.} \, ds[/tex]
We can see the reference image here:
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When a value is assigned to a property, the property's __________ is executed and the value being assigned is contained in the value parameter.
The property's set accessor is executed, and the value being assigned is contained in the value parameter.
In properties, a get accessor is used to return a property value and a set accessor is used to assign a new value. The value keyword in set accessor is used to define a value that is going to be assigned by the set accessor. In c#, a property is called an auto-implemented property when it contains accessors (get, set) without having any logic implementation. Also, in c#, properties will enable class variables to expose in a public way using get and set accessors by hiding implementation details. These properties are categorized as read-write, read-only, or write-only. It is common for the get and set accessor to be used together in programming.
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Calculate the acceleration of a galloping horse going from 2 m/s to 12 m/s in 2 seconds.
A) 5 m/s/s
B) -5 m/s/s
C) 0. 2 m/s/s
The horse has an acceleration in 2 seconds of: A) 5 m/s/s
The formula and procedure we will use to solve this exercise is:
a = (vf - vi) /t
Where:
a = accelerationvf = final velocityvi = initial velocityt = timeInformation about the problem:
vi= 2 m/svf = 12 m/st = 2 sa=?Applying the acceleration formula we have:
a = (vf - vi) /t
a = (12 m/s - 2 m/s) /2 s
a = (10 m/s) /2 s
a = 5 m/s²
What is acceleration?It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2
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A mercury-used clinical thermometer has a kink near its bulb
Answer:
A mercury-used clinical thermometer has a kink near its bulb because
Explanation:
it helps to slow mercury going back to the bulb and get the accurate temperature.
Please help me write binary ionic compound to number 1
Answer:
Na+ca+CO=NACo^3
Explanation:
NA Burns violently with explosions that may spatter the material. Used for making gasoline additives, electric power cable, sodium lamps, other chemicals.
Situation: A man is driving a car and moving at a constant velocity of 5m/s², while approaching at the traffic light from afar.
Write the appropriate action or state of motion based on the following situations below:
1.) A red light is on.
2.) How will he change his direction from the intersection where the traffic light is located?..
The change his direction from the intersection where the traffic light is located is 5m in south direction.
The displacement covered by a body per unit time is defined as its velocity. Velocity is a vector quantity that indicates the magnitude of the body's speed as well as the direction in which the body is moving. As a result, the velocity of an object can provide us with the direction of motion of the body.
Acceleration can now be defined as the rate at which an object's velocity changes per unit time. The particle's velocity rises with time in the direction of acceleration. Again, if acceleration is perpendicular to velocity direction, the body moves in a circular route. As a result, acceleration can also indicate the direction of motion of a body.
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A thin 2.00-m string of mass 50.0 g is fixed at both ends and under a tension of 70.0 n. if it is set into small-amplitude oscillation, what is the frequency of the first harmonic mode?
The frequency of the first harmonic mode in string is 13.2Hz.
As, we know
[tex]v = \sqrt{\frac{T}{u} }[/tex]
where, v = velocity
T = tension in string
[tex]v = \sqrt{\frac{70(2)}{0.050}[/tex]
v = 52.9m/s
Also,
f = v / λ
where, f = frequency
v = velocity
λ = amplitude
f = 52.9 / 4
f = 13.2Hz
Therefore, frequency of the first harmonic mode in string is 13.2Hz.
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One strategy in a snowball fight is to throw
a snowball at a high angle over level ground.
While your opponent is watching this first
snowball, you throw a second snowball at a
low angle and time it to arrive at the same
time as the first.
Assume both snowballs are thrown with
the same initial speed 16.8 m/s. The first
snowball is thrown at an angle of 56◦
above
the horizontal. At what angle should you
throw the second snowball to make it hit the
same point as the first?
The angle to make should be 68 degree.
What is a projectile motion?
A projectile is any object thrown into space upon which the only acting force is gravity.
When a particle is thrown obliquely near the earth’s surface, it moves along a curved path under constant acceleration directed towards the center of the earth. The path such a particle takes is called projectile and the motion is called projectile motion.
From the equation we have initial velocity as 16.8 m/s
angle= 56 degrees
R1= V² sin2∅1/g
R2= V² sin2∅2/g
R1=R2
V² sin2∅1/g= V² sin2∅2/g
sin2∅1/g= sin2∅2/g
∅2= sin2∅2
∅2= sin(2* 56)
∅2= 68 degrees
When a particle is projected in the air with some speed the only force acting on it during its time in the air is the acceleration due to gravity (g).
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A car slows down uniformly from 12.5 m/s to a complete stop in 2.20 seconds.a. How far did it travel before
stopping?
b. What was the acceleration of the car?
The acceleration of the car will be -5.68 m/s, and it travels 13.76 m before stopping.
What is acceleration?Acceleration is the general term for any process where the velocity changes. There are only two ways to accelerate: either by increasing speed or decreasing direction, or both. The reason for this is that velocity includes both a speed and a direction.
You cannot possibly be accelerating if you don't also change your direction and speed, regardless of how swiftly you are travelling.
It is a vector quantity with m/s² as its SI unit.
According to the question, the given values are :
Initial speed, u=12.5 m/s,
Final speed, v=0 and,
Time, t=2.20 seconds.
Now by using equations of motion :
v= u+at
0=12.5 m/s+a(2.20 s)
a=-12.5/2.20
a= -5.68 m/s
Now distance traveled will be :
v²-u²= 2as
0-(12.5 m/s)²= 2(-5.68 m/s)²×s
s= -156.25/-11.36
s= 13.76 meters.
Hence, the acceleration of the car was -5.68 m/s² and it travelled 13.76 meters before stopping.
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Two identical containers at the same presure contain the same gas. if container a contains twice as much gas as container b, which container has the higher temperatrue?
By ideal gas approximation, container A has a higher temperature than container B.
We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation
P . V = n . R . T
where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.
From the question above, we know that
PA = PA
nA = 2nB
When the initial and final pressure is the same, we can use the ratio of moles and temperature as
nA / TA = nB / TB
substitute nA
2nB / TA = nB / TB
TA = 2 TB
Hence, container A has a higher temperature than container B.
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The wave speed on a string under tension is 220 m/s. what is the speed if the tension is halved?
282.84m/s is the speed if the tension is halved. The speed of the wave is doubled since it is related to the square root of the tension.
What is speed?The speed of the wave is doubled since it is related to the square root of the tension. Tension controls the vertical force acting on string molecules perpendicular to wave motion, which controls the rate of perpendicular motion.The linear density and tension v=FT can be used to determine the wave's speed. According to the equation v = FT, the tension would need to be increased by a factor of 20 if the linear density was to grow by a factor of almost 20.The wave depends on the following:-
WavelengthFrequencyMediumThe formula we will use is:-
[tex]$$v=\sqrt{\frac{T}{p}}$$[/tex]
According to the question, the speed of the tension is as follows
Where v Is the speed of the wave, T is the tension In the wire, and [tex]$\rho$[/tex] Is the density of the wire.
when tension is doubled.
[tex]&\mathbf{T}=\mathbf{2} \mathbf{T}_0 \\[/tex]
[tex]$v=\sqrt{\hat{a} \frac{2 T_{\hat{\theta}}}{I}}$[/tex]
[tex]$v=\sqrt{2} \frac{T \hat{a}}{I}$[/tex]
[tex]$v=\frac{2}{\text { vô }}$[/tex]
After calculating, the value of v get,
[tex]$$v=\sqrt{2} * 200$$[/tex]
The value [tex]$\mathrm{v}=282.84 \mathrm{~m} / \mathrm{s}$[/tex].
The correct question is,
The wave speed on a string under tension is 200 m/s. What is the speed if the tension is doubled?
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In what kind of pot will a given volume of water boilat a higher temperature: a tall and narrow one or a short andwide one? explain.
The water in both pots will boil at the same temperature as long as the pressure is consistent. Both pots' water will reach boiling point at the same temperature.
what is boiling point?The point at which the pressure that a liquid is subjected to from its environment equals the pressure that the liquid's vapor is subjected to; in this situation, the addition of heat causes the liquid to turn into its vapor without rising the temperature.
A liquid partially vaporizes through into space above it with any temperature up until the vapor pressure of the fluid at that temperature, which is a characteristic value. The vapor pressure rises as the temperature rises, and when the liquid reaches the boiling point, vapor bubbles develop inside the liquid and rise to the surface. A liquid's boiling point changes depending on the pressure being applied; the constant boiling refers to the temperature where the vapor pressure of the liquid is equal to the average atmospheric pressure at sea level (760 mm [29.92 inches] of mercury). Water boils at sea level at 100° C (212° F). Lower boiling point temperatures are seen at greater elevations.To know more about boiling point visit:
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In a solar panel for heat supply,state the function of each of the following parts:a) metal flat plate b) thermal insulator c) tubes
Thermal insulators stop the loss of accumulated heat, metal flat plates absorb solar radiation, and tubes absorb solar energy with the least amount of heat loss.
Briefing : A coated metal plate absorbs solar energy, raising its temperature above the surrounding air. The plate then disperses energy into its immediate surroundings through radiation and convection. The heat-transfer fluid receives the heat as a result, and the hot water system is then fueled. Thermal solar collectors with insulation improve absorption efficiency and prevent the loss of accumulated heat.These tubes absorb the sun's energy while minimizing heat loss to the environment by using a vacuum, or evacuated space. The heat captured from the Sun is transferred to the water through a heat pipe that is attached to an inner metal tube that serves as the absorber plate.To know more about vacuum :
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Which positions made up early Roman government? Select four options.
Roman government comprised Members of the military, consuls, magistrates, and senate.
The two consuls, who had taken the king's place, were principally generals tasked with commanding Rome's legions in battle. Rome selected a dictator in lieu of the consuls in times of military necessity, when the unity of command was occasionally required. The dictator, however, could not wield supreme military command for more than six months at a period.
The Senate, which may have existed during the monarchy and acted as the king's advisory council, now provided advice to both magistrates and the Roman populace. Although the Senate simply provided advice and the people were the sole source of authority in theory, in reality, the Senate had tremendous power due to the status enjoyed by all of its members.
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8. A coin flicked across a table will stop, because or due to of what kind of force______________.
Frictional force
Tension force
Kinetic energy
Answer:
Frictional Force
Explanation:
Resistance is the resistance that one surface or object encounters when moving over another.
Tension could only occur on a rope or something that can be stretched tight.
Kinetic Energy would allow it to continue rolling-not stop.
Calculate the time it takes for a bat to detect a predator approaching at a distance of 1000m away. assume sounds travel 330 m/s in air
A bat will take 3.03 s to detect a predator approaching at a distance of 1000m away
The formula and procedure we will use to solve this exercise is:
t = x/v
Where:
x = distancet = timev = velocityInformation about the problem:
v = 330 m/sx = 1000 mt = ?Applying the time formula from the uniformly rectilinear motion (URM), we have:
t = x/v
t = 1000 m / 330 m/s
t = 3.03 s
What is velocity?It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).
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50 POINTS HELP QUICK
For each scenario below, identify the opposite reaction force. 1) A baseball bat hits a ball. 2) A bowling ball pushes up against the pins. 3) Air particles push outward against a balloon. 4) During an earthquake, tectonic plates move
A baseball bat hits a ball is typical example of opposite reaction force.
What is Newton's third law of motion?Newton's third law states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.
The third law is also known as the law of action and reaction.
Examples of Newton's third law of motionA horse pulls a cart, a person walks on the ground, a hammer pushes a nail, magnets attract paper clipA baseball bat hits a ballThus, a baseball bat hits a ball is typical example of opposite reaction force.
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[U03 L03-1] Which option below is the best description of velocity?
1.how long it takes for the object to move
2.the change in position divided by 3.the change in time
4.the position divided by change in time
5.how far an object has moved
the change in rate divided by the
The best description of velocity is
How far an object has moved the change in rate divided by the....
Olympics medals have a diameter of 60 mm and the thickness of 3 mm gold has a density of 19g/cm^3 work out the volume of a gold medal
According to the diameter and thickness of the gold medal, the volume of the gold medal is 8478mm³.
As a gold medal is a cylinder, so the volume of a gold medal (V) = Ah
Where h is the thickness of the medal and A is the area of the medal.
So, A = πr² Here r is the radius = diameter÷2
V = πr²h = 60÷2
= π × 30² × 3 = 30
=8478
So the volume of the gold medal is 8478mm³.
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I need help ASAP
You need to match each thing to it’s place I’m not sure
The complete table representing the energy description at different stages is
Least Potential Energy [2]
Most Potential Energy [1]
Potential Energy to Kinetic energy [4]
Kinetic energy to Potential Energy [3]
What is Potential Energy and Kinetic Energy?Potential energy of a body that is due to its position. To be more precise, the potential energy of a body of mass 'm' at height 'h' will be -
P[E] = mgh
Kinetic Energy of a body is the energy due to virtue of its motion. Mathematically -
K[E] = 1/2 mv²
Given is a image of a roller coaster ride and a table describing the energy magnitude theoretically.
As mentioned, Potential energy of a body that is due to its position and is given by - P[E] = mgh. Let's complete the energy table given -
1 → Location with least potential energy
From the formula -
P[E] = mgh
mg = constant
P[E] [tex]\alpha[/tex] h
Now, the point 2 represents the minimum height, therefore Point 2 is the location with least potential energy.
2 → Location with most potential energy
We know -
P[E] [tex]\alpha[/tex] h
The point with maximum height is 1, therefore it will represented by Point 1.
3 → Conversion of potential to kinetic energy
Assume that the velocity of the roller coaster is v. Now at point 1, the velocity will be zero. Therefore, the total energy of the roller coaster will be purely potential energy. When it starts to move from point 1 to point 4, its height will decrease and its velocity will increase. Therefore - at this stage (point 4), the potential energy will start to convert into kinetic energy.
4 → Conversion of kinetic to potential energy
Use the same concept discussed in part - 3. In this case it is moving from lower point to higher point. So, height will increase and velocity will decrease. Therefore, the point 3 represents the stage at which kinetic energy will start to convert into potential energy.
Therefore, the complete table representing the energy description at different stages is
Least Potential Energy [2]
Most Potential Energy [1]
Potential Energy to Kinetic energy [4]
Kinetic energy to Potential Energy [3]
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Using the kinetic molecular theory, describe what happens to molecules during the phase change from ice to liquid water.
HELP ME I'D GIVE BRAINLIEST
Answer:
When the ice melts into water, there is kinetic energy being increased to its particles, later on the particles 'break the bonds' that hold the ice together, which leads to ice turning into water.
This is my best I can answer to this question
A 50-kg stunt diver is falling at a speed of 20 m/s. When she is stopped by sinking into a cushion, the cushion exerts an average force of 2500 n on her. Approximately how much time did it take her to stop moving once she hit the cushion?.
The approximately time that takes to stop the stunt driver once she hit the cushion is: 0.4 s
To solve this exercise, the formulas and procedures to be applied are:
F = m * at = (vf – vi) / aWhere:
m = massF = Forcea = accelerationt= timevf= final velocityvi = initial velocityInformation about the problem:
m = 50 kgvi = 20 m/s F= -2500 NVf = 0 m/s1 N = kg * m/s²a= ?t =?Applying the force formula and isolating the acceleration, we get:
F = m * a
a = F/m
a = -2500 N /50kg
a = -2500 kg * m/s² / 50 kg
a = -50 m/s²
Applying the time formula we get:
t = (vf – vi) / a
t = (0 m/s – 20 m/s) / 50 m/s²
t = (– 20 m/s) / -50 m/s²
t = 0.4 s
What is force?It is the physical magnitude that expresses the effort necessary to move the mass of one kilogram with an acceleration of one meter per second squared, this is expressed in units of the international system in Newton.
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100 grams of water at 75 degrees is heated at constant pressure. the water is completely vaporized. what is the heat added?
The heat added is 348.165 kj
The enthalpy of vaporization, commonly known as the heat of vaporization or heat of evaporation, is the amount of energy required to turn a liquid material into a gas. The enthalpy of vaporization depends on the pressure at which the transition occurs.
The heat of vaporization varies with temperature, yet for small temperature ranges and decreased temperature ranges, a constant heat of vaporization can be assumed. The heat of vaporization decreases with rising temperature until it totally disappears at a point known as the crucial temperature. The liquid and vapor phases are indistinguishable beyond the critical temperature, and the material is referred to as a supercritical fluid.
Given that;
M = 150g = 0.15kg
T = 75oC
Heat capacity, h =2321.1 kj/kg
Q = m h
Q = 0.15* 2321.1
Q = 348.165 kJ
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A flask contains equal masses of f2 and cl2 with a total pressure of 3.05 atm at 298k. what is the partial pressure (in atm) of cl2 in the flask?
The partial pressure of [tex]$\mathrm{Cl}_2$[/tex] in the flask is [tex]$1.067 \mathrm{~atm}$[/tex]
Partial pressure can be derived through the following:
Total pressure of a gas mixture = sum of the partial pressures of individual gases
[tex]\mathrm{P}(\text { total })=\mathrm{P}\left(\mathrm{f}_2\right)+\mathrm{P}\left(\mathrm{Cl}_2\right)[/tex]
Partial pressure = Mole fraction [tex]$\times$[/tex] Total pressure
Let us represent the mass of each gas as [tex]\mathrm{m}.[/tex]
Number of moles of [tex]$F_2=\mathrm{m} / 38$[/tex] (molar mass of [tex]$\left.\mathrm{Fl}_2\right)=38 \mathrm{~g} / \mathrm{Lol}$[/tex]
Number of moles of [tex]$\mathrm{Cl}_2=\mathrm{m} / 71$[/tex](molar mass of [tex]$\mathrm{Cl}_2$[/tex] )
Mole fraction of [tex]$F_2=(\mathrm{m} / 38) /(\mathrm{m} / 38)+(\mathrm{m} / 71)=0.65$[/tex]
Mole fraction of [tex]$\mathrm{Cl}_2=(\mathrm{m} / 71) /(\mathrm{m} / 38)+(\mathrm{m} / 71)=0.35$[/tex]
Partial pressure of [tex]$\mathrm{Cl}_2=0.35 \times 3.05=1.067 \mathrm{~atm}$[/tex]
Partial Pressure of [tex]$\mathrm{F}_2=0.65 \times 3.05 =1.98 \mathrm{~atm}$[/tex]
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An airplane starts from rest and accelerates at 6.99 m/s2. what is its speed at the end of a 500-m runway?
The speed of the plane at the end of the runway is 59.065 m/s.
Evaluation :The equations of position and velocity in function of time of an object moving in a straight line together constant acceleration are the following:
x = x₀ + v₀ · t + 1/2 · a · t²
v = v₀ + a · t
Where:
x = position of the plane at time t.
x₀ = initial position.
v₀ = initial velocity.
t = time.
a = acceleration.
v = velocity of the plane at time t.
If we place the origin of the frame of reference at the starting point, then x₀ = 0. Since the plane originate from rest, v₀ = 0. Then, the equation gets reduced to this:
x = 1/2 · a · t²
Let's find how much time it takes a plane to travel 500 m:
500 m = 1/2 · 6.99 m/s² · t²
2 · 500 m / 6.99 m/s² = t²
t = 8.45 s
Now, let's use the equation of velocity to solve the speed of the plane at t = 8.45 s (the time at which the plane is at the end of the runway):
v = v₀ + a · t (v₀ = 0)
v = a · t
v = 6.99 m/s² · 8.45 s
v = 59.065 m/s
The speed of the plane at the end of the runway is 59.065 m/s.
What happens when electric flux is zero?
This leads us to the Gauss's Law, which says that the electrical flux going through a closed surface, is that the sum of all charges Q inside that closed surface, divided by permittivity of free space E0. If that flux is zero, meaning there is no net charge inside the shape.
What is a electric flux in closed surface?
The net flux through a closed surface is a quantitative measure of the net charge inside a closed surface. 2. the web electric flux through any closed surface surrounding a net charge 'q' is independent of the shape of the surface.
For which surface electric flux will be zero?
The flux of an electrical field through a closed surface will be always zero if and only if there is no net charge in the volume enclosed by the surface. the quantity of electric flux is always proportional to the charges inside the surface
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a small nail may Pierce an inflated car tyre and remain there without pressure reduction in the tyre ..explain the observation
The rubber is stretched and firmly gripped by the nail due to the pressure inside the tire, which prevents air leakage.
What is the pressure ?The force of all gas particle/wall collisions divided by the surface area of the wall is the definition of pressure (P): One of the fundamental measurable quantities of this phase of matter, pressure is a property shared by all gases. The amount of force applied to a given area is referred to as pressure.
For instance, the weight of the snow divided by the area of the roof would represent the pressure from snow on a roof. Gases are typically where pressure in chemistry comes from. Gas is added to a balloon before it is inflated. Gas molecules collide with one another and the balloon's walls.
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