If it takes 14 minutes, or 840 seconds, to drive from MOHS to the Rockaway Mall, the average speed for this route is 216 m/s.
What's the average speed response?The total distance something has traveled is divided by the total amount of time it took to traverse that distance to arrive at its average speed. Speed is the current rate of movement of something. Average speed is the speed that a vehicle travels at on average over the course of a trip.
Give an example of the typical speed.The average speed is calculated by dividing the total distance traveled throughout the entire time period. A person's average speed, for instance, is calculated as 40 miles divided by 40 minutes, or 1 mile per minute, if it takes them 40 minutes to drive 20 miles north, 20 miles south, and then 20 miles in between (60 mph).
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the telescope in space that allowed astronomers to find thousands of exoplanets and exoplanet candidates by making very careful measurements during a planet transit was called:
The telescope in space that allowed astronomers to find thousands of exoplanets and exoplanets was called The Kepler space telescope.
What is a telescope?Telescope: a tool for creating magnified pictures of far-off objects. The telescope is without a doubt the most significant research tool in astronomy. It offers a way to gather and examine radiation coming from astronomical objects, even those at the edge of the cosmos.
The Kepler space telescope discovered hundreds of exoplanets and exoplanet candidates during the course of its four years of photometric surveys. The confirmation and characterization of hundreds of multi-planet systems via transit timing variations are one of Kepler's biggest legacies (TTVs).
Therefore, the telescope in space that allowed astronomers to find thousands of exoplanets and exoplanets was called The Kepler space telescope.
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25.22 kg object is accelerating at rate 11.48 m/s^2 what is net force acting on the object
289.53 newton is the force acting on the 25.22 kg object accelerating at the rate of 11.48m/s²
What is the net-force acting on the object?From the Newton's second law, force is expressed as;
F = m × a
Where m is mass and a is acceleration.
Given the data in the question;
Mass of the object m = 25.22kgAcceleration of the object a = 11.48m/s²Applied force F = ?To determine the force acting on the object, plug the given values into the Newton's formula above.
F = m × a
F = 25.22 kg × 11.48 m/s²
F = 289.53 kgm/s²
F = 289.53 N
Therefore, the force acting on the object is 289.53 N.
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How do you find speed from wavelength and Hz?.
Speed = Wavelength x Wave Frequency.
Wavelength is measured in meters and frequency is measured in hertz, or waves per second. Therefore, wave velocity is expressed in meters/second, which is the SI unit of velocity. Wavelength is the distance between identical points in adjacent cycles of a waveform signal propagating in space or along a wire.
For wireless systems, this length is usually expressed in meters centimeters, or millimeters. Wavelength can be defined as the distance between two consecutive peaks or valleys. Measured in the direction of the wave. The wavelength of light is an important property that determines the properties of light. Red light has a different wavelength than blue light and green light has a different wavelength from both.
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To outside observers at rest, the overall sizes of objects traveling at relativistic speeds are.
The overall sizes of objects traveling at relativistic speeds are smaller.
The term "relativistic speed" describes the rate at which relativistic effects are important for the intended accuracy of measurement of the phenomenon being observed. The differences between values determined by models that take relativity into account and those that do not are known as relativistic effects. Velocity, rapidity, and celerity are all adjectives that have a similar meaning. Speed is a scalar since it is the size of the velocity vector, or four-velocity in relativity and three-velocity in Euclidean space. Average speed is how speed is objectively determined, although modern, widely used equipment can estimate speed over extremely short time intervals and get very near to instantaneous speed. Cosine error, which happens in speed detection systems when only one scalar component of the three-velocity is measured, and the Doppler effect, which could affect
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a service main at the end of a street decreases in diameter from 12 to 4 inches. if the flow rate is 4 ft/s and the pressure at point 1 is 50 psi
The amount of fluid that moves past a point in area A per unit of time is known as the flow rate.
How do you find average velocity from flow rate?The amount of fluid that moves past a point in area A per unit of time is known as the flow rate. Here, a uniform pipe carrying the shaded fluid cylinder passes point P in time t. The cylinder's capacity is Ad, its average velocity is v=d/t, and its flow rate is Q=Ad/t=Av.The average fluid velocity for laminar flow through a pipe is equal to half of the fluid's greatest velocity at the pipe's center. The Hagen-Poiseuille equation is shown above. Since there is no acceleration in a steady and uniform flow, there is no force acting in the direction of the flow.To learn more about fluid velocity refer,
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we can rule out a connection between changes in the sun's luminosity and the global warming that is currently occurring on earth because
Answer: This happens because the mechanism by which increasing Solar luminosity causes atmospheric CO2 to decline is temperature dependent.
Explanation: Increasing solar luminosity raises the temperature of the planet, increasing the rate of weathering, which exposes crustal rock to the atmosphere. Atmospheric carbon dioxide reacts with that exposed rock to form carbonate minerals, which removes the CO2 from the atmosphere.
This in turn lowers the greenhouse effect and lowers the planet’s temperature, maintaining an equilibrium temperature despite the increased solar luminosity.
A negative feedback loop.
But because solar luminosity is in fact greater, Earth cannot cool to BELOW its prior equilibrium and thus a snowball Earth cannot really occur by this mechanism alone.
But once CO2 is sufficiently exhausted from the atmosphere such that further lowering it levels no longer decreases the greenhouse effect, the temperature buffer effect ends, and Earth’s temperature starts to rise.
Once it rises past a certain point, carbonate minerals are no longer stable. Exposed bedrock no longer reacts with atmosphere CO2. Instead, the REVERSE happens. All the previously made carbonate minerals now decompose and RELEASE CO2 back into the atmosphere.
The greenhouse effect now increases despite the Earth already being warmer, making it even warmer.
A POSITIVE feedback loop.
Which in turn makes the carbonate minerals even more unstable, which increases the CO2 release rate even more, which increases the temperature even more.
Thus a runaway greenhouse effect commences.
Hi! can someone please help me with this simple question? ty in advance :)
Explanation:
Electric force or electrostatic force is the force between two or more charged particles.It can be attractive or repulsive because two similar charges repel each other and opposite charges attract each other.For instance a positive and a positive charge will repel each and a positive and a negative charge will attract each other.
Meanwhile gravitational force is attraction between two bodies(two masses) due to gravity.They always attract each other.The force of attraction by gravity us dependent on sqaure of distance between the two bodies and the product of their masses.
a 4.50 g bullet pierces a sand bag 22.0 cm thick. if the initial bullet velocity was 224. m/s and it emerged from the sandbag with 24 m/s, what is the average magnitude of the friction force the bullet experienced while it traveled through the bag?
The average magnitude of the friction force the bullet experienced while it traveled through the bag is 12.375 N.
Energy conservation is the decisions and practices to use less energy. Turning off lights when leaving a room, unplugging appliances when not in use, and walking instead of driving are examples of energy conservation. To solve this problem, we can use the law of conservation of energy. We know that the bullet he enters at 39 m/s and exits at 27 m/s, losing some energy. This can be modeled by the energy equation of motion. "U" is the energy lost when the bullet passes through the bag. Then, solving for U, we find that the bag is 48 cm thick and F * d = W by rearranging:
F = 12.375 N
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a 1.7 m tall weightlifter holds a 780 n barbell above their head. how much work is being done on the bar
A 1.7 m tall weightlifter holds a 780 n barbell above their head. 1326 J work is being done on the bar .
work done = force * displacement
force = 780 N
displacement = 1.7 m
work = 780 * 1.7 = 1326 J
1326 J work is being done on the bar
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a spring-powered dart gun is un-stretched and has a spring constant 12.0 n/m. the spring is compressed by 8.00 cm and a 5.00 gram projectile is placed in the gun. the velocity of the projectile when it is shot from the gun is: a. 1.52 m/s. b. 2.54 m/s. c. 3.92 m/s. d. 4.24 m/s. e. 5.02 m/s.
The velocity of the projectile when it is shot from the gun is 3.91 m/s.
The velocity of the projectileWe have,
Spring constant = 12.0 n/m
The spring is compressed by 8.00 cm = 0.08 m
Mass = 5.00 gram = 0.005 kg
The potential energy that occurs in the spring is elastic potential energy.
PE = ½ kx²
= ½ (12) (0,08)²
= 0.0384 J
The kinetic energy of the two objects after the collision is equal to the potential energy of the springs.
So,
PE = KE
0.0384 = ½ (0.005) (v)²
0.0384 = 0.0025 v²
v² = 15.36
v = 3.91 m/s
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saturated liquid water enters an ideal pump at a pressure of 0.1 [bar]. pressure at the outlet is 5 [bar]. what is the outlet temperature of the pump?
46 °C is the outlet temperature of the pump.
Temperature is the measure of hotness or coldness expressed in terms of any of numerous scales, which includes Fahrenheit and Celsius.
Temperature shows the path wherein warmness power will spontaneously go with the flow i.e., from a hotter frame to a chillier body.
calculation:-
PT = PT2
T2 = PT/P2
= 0.1 × 298/5
= 47°C
The pressure of a given amount of gas is without delay proportional to the temperature at a given quantity. When the temperature of a gadget is going up, the pressure additionally goes up, and vice versa. the connection among strain and temperature of a fuel is said through the Gay-Lussac's law.
The pressure law states that for a constant extent of fuel in a sealed box the temperature of the gas is directly proportional to its strain. this could be without problems understood by visualizing the particles of gasoline inside the field moving with a more energy when the temperature is increased.
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An object i dropped from ret and fall freely 20. Meter to Earth. When i the peed of the object 9. 8 meter per econd?
Answer:
The speed of the object is 9.8 meters per second after one second of free fall. In that one second, the object travels 4.9m.
Explanation:
On Earth, acceleration due to gravity is 9.8[tex]\frac{m}{s^2}[/tex]. Use kinematic equation #1 to find the time it takes this object to achieve the given speed (v).
[tex]v=v_0+at\\a=9.8\frac{m}{s^2}\\v_0=0\frac{m}{2}\\v=9.8\frac{m}{s}\\9.8\frac{m}{s}=0.0\frac{m}{s}+(9.8\frac{m}{s^2})t\\t=\frac{9.8\frac{m}{s}}{9.8{m}{s^2}}\\t=1 s[/tex]
This is intuitive. The velocity of an object in free fall gains 9.8[tex]\frac{m}{s}[/tex] per second unless acted upon by an outside force.
To find how far the object has fallen, insert the given and derived values into kinematic equation #2.
[tex]\Delta y=(\frac{v+v_0}{2})t\\\Delta y=(\frac{9.8\frac{m}{s}+0.0\frac{m}{s}}{2})(1 s)\\\Delta y=4.9m[/tex]
Hope that helps.
how much more energy is required to walk in sand than to walk on a hard surface? group of answer choices about half as much almost twice as much five times as much it depends on too many other factors to estimate
More energy is required to walk in the sand than to walk on a hard surface is Option C. almost twice.
Energy is the quantitative belongings that are transferred to a body or to a bodily machine, recognizable in the overall performance of work and inside the shape of heat and light. power is a conserved quantity—the law of conservation of energy states that electricity can be transformed in form, however not created or destroyed.
Strength exists in many extraordinary bureaucracies. Examples of these are mild power, warmness electricity, mechanical strength, gravitational power, electric power, sound strength, chemical energy, nuclear or atomic electricity, and so on. every form can be transformed or changed into the opposite form.
Energy is so important in our everyday lives because it's far a simple human want. We use power not the handiest warmth our human-made structures however we use it to cool them as well. strength is essential for buying up away from the bed, strolling down the road, or maybe lifting your finger.
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four 7.5-kg spheres are located are located at the corners of a square of side 0.80 m. calculate the magnitude and direction of the gravitational force exerted on one sphere by the other three.
The gravitational force on one sphere due to the three of square is 718.87 ×10⁻¹¹N
Gravitational force is the attraction force exerted between all the masses existing in the universe.
Every body having mass attracts the other massive body by the gravitational force.The SI unit of this force is Newton (N).Mass of the spheres = m = 7.5 kg
Length of the square side = d = 0.8 m
Due to the square's three corner there will be upward , right and diagonal three forces acting on the system,
Fupward = G(m²/d²)
Fright = G(m²/d²)
Fdiagonal = G (m²/(√2d)²)cos45°+ G (m²/(√2d)²)sin45°
here G is the Gravitational force constant which has the value of 6.67 ×10⁻¹¹ Nm²/kg².
To calculate the force on the left sphere in the lower left corner. From the symmetry of the problem the net forces in the x and y direction will be the same and θ = 45°
Therefore, the force will be,
Fx = Fright + Fdiagonal
Fx = G(m²/d²) +G (m²/(√2d)²)(1/√2)
Fx = G(m²/d²)[(1+(1/2√2)]
Also Fy = Fx =G(m²/d²)[(1+(1/2√2)]
By the Pythagorean combination of the two component forces , due to symmetry the the net force will be along the diagonal of the square,
F = √Fx +Fy= Fx√2
F = G(m²/d²)[(1+(1/2√2)]√2}
F = (6.67 ×10⁻¹¹ Nm²/kg²)(7.5kg)²/(0.8m)²[(1+(1/2√2)]√2}
F = 718.87 ×10⁻¹¹N
The magnitude of the gravitational force exerted on one sphere by the other three is 718.87 ×10⁻¹¹N and the direction of the force will be towards the sphere.
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Select the correct anwer. Paul ha a very mall budget, but he trongly believe that hi new product will be a ucce. Which ale channel hould he try given hi ituation?
A. Franchiing
B. E-commerce
C. Flea market
D. Telemarketing
E. Multilevel marketing
Paul has a very small budget, but he want to do some business job. The channel he could try in his situation is C. Flea Market.
What is Flea Market?Flea Market is a market where multiple vendors gather to sell their products. Many flea markets offer both new or secondhand goods. Though open-air markets were once the norm, today's flea markets may take place indoors, outdoors, or both. Many people with low budget and want a simple way of selling their goods use this kind of market. They don't need to rent such a permanent place. They also do not need to share their profit from sales to service providers like if they did it in E-commerce.
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I NEED THIS ASAP PLEASE ILL GIVE POINTS (science)
The answer is c.Evaporation
Answer:
C) Evaporation
Explanation:
Think of it like eVAPORation
A block of gold (density 19300 kg/m3), a block of concrete (density 2000 kg/m3), and a block of ice (density 920 kg/m3) are all submerged in the same fluid where all three blocks have the same volume. Which block experiences the greatest buoyant force?.
All three experience the same uboyant force.
What is buoyant force?
Upthrust, often known as buoyancy, is an upward force applied by a fluid against the weight of an object that is partially or completely submerged. The weight of the fluid on top causes pressure in a fluid column to rise with depth.
All three objects experience the same buoyant force because their volumes are equal the buoyant force on an object in a liquid depends on the volume of the submerged object, the density of the liquid, and the acceleration caused by gravity but not on the density of the object.
Hence, all will experience the same buoyant force.
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an ideal solenoid has an inductance of 6.8 mh. to generate an emf of 2.6 v, what should the current should change at a rate of? answer in amps/second.
An ideal solenoid has an inductance of 6.8 mh. to generate an EMF of 2.6 v, The current should change at a rate of 2.62 * [tex]10^{-3}[/tex] A / second
induced EMF in a solenoid = -L * (di/dt)
∈ = -L * (di/dt)
di/dt = - L / ∈
= - 6.8 * [tex]10^{-3}[/tex] / 2.6
= - 2.62 * [tex]10^{-3}[/tex] A / second
The current should change at a rate of 2.62 * [tex]10^{-3}[/tex] A / second
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a spring is stretched 20 cm by a 30.0 n force. determine the work done in stretching the spring from 0 to 40 cm?
The work done when a spring is stretched from 0 to 40cm is 4J.
What is work done?
Work done is the magnitude of force multiplied by displacement of an object. It is also the amount of energy transferred to an object when work is done on that.
The work done on the spring to stretch to 40cm is,
F = kx
where F is force, k is force constant.
k = F / x = 10 N / 20 * 10^-2 m = 50 N/m
W = 0.5 * k * (x)^2
where W = work done, k = force constant.
W = 0.5 x 50 x (40 x 10^-2)^2 = 4 J.
Therefore, the work done on the spring when it is stretched to 40cm is 4J.
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calculate the frequency of radiation that has a wavelength of 5.23 x 10^-4 m. answer in scientific notation with units of hz.
The frequency of radiation that has a wavelength of 5.23 x 10^-4 m is
57.36 x 10¹⁰ Hz.
Light's wavelength and frequency are inversely proportional to one another.
Light waves with the highest frequencies have the shortest wavelengths, and those with the lowest frequencies have the longest wavelengths.
Formula:
Speed of light = wavelength × frequency
c = λ × f
f = c / λ
The speed of light = 3×10⁸ m/s
a wavelength of radiation = 5.23 x 10⁻⁴m
To calculate the frequency of the radiation :
f = c / λ
using values of c and λ we get,
f = (3×10⁸ m/s) / ( 5.23 x 10⁻⁴m)
f = 0.5736 x 10¹² Hz
f = 57.36 x 10¹⁰ Hz
The frequency of radiation that has a wavelength of 5.23 x 10^-4 m is 57.36 x 10¹⁰ Hz.
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Solve for xxx. Enter the solutions from least to greatest.
Round to two decimal places.
(x + 8)^2 - 7 = 0(x+8)
2
−7=0
The given equation is (x+8)²-7=0 and is said to be round to two decimal places. The solution is said to be entered from least to the greatest that is -10.65 and -5.35.
The equation with its highest degree as 2 is called a quadratic equation. We get two solutions for it when we solve it.The quadratic equation is given here as (x+8)²-7=0.
Let us solve the above equation,
(x+8)²-7=0
(x+8)²=7
x+8= ±√7
x= -8 ±√7
The two values of x are √7-8, -8 -√7.
√7-8= -5.35
-8 -√7= -10.65
Thus, the solutions from least to the greatest are -10.65 and -5.35.
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three identical uniform rods are each acted on by two or more forces, all perpendicular to the rods and all equal in magnitude. which of the rods could be in static equilibrium if an additional force is applied at the center of mass of the rod?
The question is incomplete. The complete question is attached.
Figure 3 is the right answer. The rods in the figure could be in static equilibrium if an additional force is applied at the center of mass of the rod. Because in this case net force and net torque on the rod are zero.
A static equilibrium is a state of an object when all of its parts are at rest and there is no resultant force on it. All the forces acting on an object are in balance and it is not moving with respect to the relative plane. A static equilibrium stops an object from moving. As all the forces balance each other torque acting on an object is also zero.
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a(n) is a device, or group of devices, or other means by which the conductors of a circuit can be disconnected from their source of supply.
A disconnecting means is a device, or group of devices, or other means by which the conductors of a circuit can be disconnected from their source of supply.
This is the definition given to disconnecting means by NEC. NEC stands for National Electrical Code. It is a standard to safe installation of electrical wiring and electrical equipment. It is created to provide safety for people from electrical hazards.
A switch is an example of disconnecting means. A disconnecting means isolates the service panel from the source of utility power. The main circuit breaker on a service panel is another form of disconnecting means.
Therefore, a disconnecting means is a device, or group of devices, or other means by which the conductors of a circuit can be disconnected from their source of supply.
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Polyurea is a synthetic material that is often used as a waterproof coating. Polyurea is useful because it is not reactive chemically. This means it does not break down easily.
Considering this information, what is likely a negative impact of polyurea?
A.
It has toxic effects on nearby wildlife.
B.
It does not break down after it is disposed of.
C.
It damages materials that it comes in contact with.
D.
It needs to be reapplied to surfaces frequently.
The negative impact of polyurea is It needs to be reapplied to surfaces frequently. Option D.
Studies have shown that polyurea coatings can increase the deflection of steel components, especially when applied to the exterior facing the blast. Polyurea is a commonly used polymer in moisture-resistant coating systems. Polyurea does not emit CO2 or other harmful gases during manufacturing or use.
Basic components can be manufactured in a climate-neutral manner using renewable energy allowing timely action to be taken regarding the ecological footprint as well. Cured polyurea has a high glass transition temperature and heat distortion temperature, but will burn when exposed to an open flame. It will self-extinguish when the flame is removed. Polyurea coatings provide a fast-curing durable flexible protective barrier that prevents water damage and harmful chemicals from destroying virtually any structure.
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a 0.90-kg block is suspended from a spring with a spring constant of 320.0 n/m. a 0.030-kg bullet is fired into the block from directly below with a speed of 280.0 m/s and is embedded in the block. find the amplitude of the subsequent motion. you may ignore gravitational potential energy as if the system was horizonta
The amplitude of subsequent motion is 0.028 m.
Mass of a given block= 0.90 kg
Spring constant (k) of a spring = 320N/m
Weight of the given block = F = mg = 0.90 × 9.81 = 8.83 N
F/k = x which is the compression of spring (amplitude) and is equal to 8.83/320 = 0.028 m
When an object is present in a gravitational field, it has or can acquire gravitational potential energy, which is the energy that results from a change in position. Gravitational potential energy is energy that has a connection to gravitational force or gravity. An example of a system possessing gravitational potential energy is water stored in a dam.
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A container with three necks, of different diameters and shapes, contains an incompressible liquid. Which of these three figures is correct?
In the winter, an
animal's fur provides
Warmth through which
method?
Answer:
insulation
Explanation:
they use fur to trap a layer of heat next to its skin and reduce heat transfer
think of it like a house, a closed environment/system and it traps warmth inside and it cant get out. or like a microwave, when you open it you can feel the heat releasing.
The world's fastest insect is the horse fly. A horse fly can top out at
90 mph! Find its velocity if it has a mass of 1.2 x 10-5 kg. The kinetic
energy of the house fly is 0.019 Joules.
The velocity of the house fly of mass 1.2×10⁻⁵ kg, with a kinetic energy of 0.019 J is 56.27 m/s
What is velocity?Velocity can be defined as the ratio of displacement to time.
To calculate the velocity of the house fly, we use the formula of kinetic energy below.
Formula:
K.E = mv²/2........... Equation 1Where:
K.E = Kinetic energy of the house flym = Mass of the house flyv = Velocity of the house flyFrom the question,
Given:
m = 1.2×10⁻⁵ kgK.E = 0.019 JSubstitute these values into equation 1 and solve for v
0.019 = (1.2×10⁻⁵× v²)/2v² = (2×0.019)/ 1.2×10⁻⁵v² = 3166.67v = √(3166.67)v = 56.27 m/sHence, the velocity of the house fly is 56.27 m/s
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a closed column of water has a diameter of 2 m and a depth of 9.6 m. how much pressure is at the bottom of the column? the acceleration of gravity is 9.8 n/kg .
The pressure at the bottom of the column is 921.948 Nm⁻²
Pressure is the force applied perpendicular to the floor of an object in keeping with the unit region over which that pressure is shipped. Gauge strain is the strain relative to the ambient strain. diverse devices are used for a specific pressure.
A simple example of stress may be visible via conserving a knife to a bit of fruit. if you hold the flat part of the knife against the fruit, it may not cut the floor. The force is spread out of a large place (low strain).
It is for the ratio of the force implemented to the surface area over which the pressure is applied. we will outline stress as: The pressure applied perpendicular to the surface of an item according to the unit region over which that force is shipped.
Calculation:-
pressure = ρgh
= 9.8 × 9.8 × 9.6
= 921.948 Nm⁻²
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sketch the rbs spectrum as accurately as possible noting the absolute energy positions of the mo, si and n peaks as well as the carbon substrate.
An ion scattering method called Rutherford backscattering spectrometry (RBS) is used to analyze the composition of thin films.
What is the principle of RBS?Using the same methodology as ISS, Rutherford backscattering spectroscopy (RBS, named after British physicist Ernest Rutherford) measures backscattering. It is possible to determine the mass of the scattering atom in a sample by measuring the energy and angle of an elastically scattered primary ion beam.When waves, particles, or signals are reflected back in the direction they came from, that is backscattering (or backscatter). According to another definition, backscattering is a phenomenon that happens when radiation or particles scatter at angles greater than 90 degrees from their original direction of motion.To Learn more About RBS refer to:
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