Answer:
SONAR is short for Sound Navigation And Ranging. One of the earliest SONAR-like devices was invented by naval architect Lewis Nixon in 1906. It was designed to detect icebergs underwater to help ships navigate around them. This detection system became more important after the sinking of the in 1912.
Explanation:
What are the 15 categories of Scope 3 emissions?
Scope 3 Purchased goods and services, capital goods, fuel- and power activities, transportation and distribution, waste produced throughout operations, business trips, employee commuting, leased assets, processing of sold goods, use of sold goods, end-of-life treatment of sold goods, franchises, and investments are just a few of the three emission categories.
There are how many separate Scope 3 emission categories?twenty groups Although not all businesses would fit into every category, the GHG Protocol defines 15 classifications for scope 3 emission. Upstream and downstream of a organization's operations are both considered sources of emissions within Scope 3.
Which emission categories are there?Explained: emission types 1, 2, and 3.The primary GHG Protocol business standard divides a firm's greenhouse gas emissions into three categories. While reporting for scopes 1 and 2 is required, monitoring for scope 3 is optional and more difficult.
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Should an ammeter be connected in series or in parallel?
Answer:
The ammeter must be connected in series to measure the current thru it.
Suppose one had a device to measure the rate of water passing thru it - the device would have to be placed in the water line for the measurement - not in parallel with the line
a freight elevator weighting 3000 lbs is supported by a 12 foot cable weighing 15 lb per linear foot. find the work required to lift the elevator 10 ft by winding the cable onto a winch
The work required to lift the elevator 10 ft by winding the cable onto a winch is 28,195ft*lb
Define work done.
The result of a force's displacement and its component of force exerted by the object in the direction of displacement is what is known as the force's work. When we push a block with some force, the body moves quickly and work is completed.
3000lb * (9ft)=27000ft*lb of labour is required to lift the elevator.
A piece of rope is being lifted by the winch over a distance of 12-y from 0 to 9. The weight of each part is 14dy.
W = int0-9[14(12-y)]dy
= 15int0-1[0(12-y)]dy
W = 15[12y-.5y^2]^0-9
W = 1195 ft*lb
Total work = 27000+1195 = 28,195ft*lb
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How is ultrasound used to detect the depth of the sea?
A SONAR transmits ultrasonic waves into the ocean, and after two seconds, it detects the reflected waves from a sunken ship.
How do we measure the depth of the ocean?
The scanning sonar concurrently produces ultrasonic waves 360 degrees around the ship and is able to rapidly recognise and display any echoes that do return.
Sound is frequently and quickly used to determine ocean depth. Ships can scan the terrain of the ocean below using a technology known as sonar, which stands for sound navigation and range. The device sends sound waves to the ocean floor and measures how long it takes for an echo to return. An ocean depth gauge is called a fathometer.
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what characteristic of the air track is important to this experiment? the air track blows air to maximize friction so that the cart motion is one-dimensional. the air track provides air flow to support the frictionless rotation of the pulley. the air track has low friction with the carts so that non-conservative forces (such as friction) are minimized. the air track is massless so that the motion of the track does not affect our measurement.
An experimental tool known as an air track enables the investigation of motion with the least amount of frictional disturbance. It is made out of a track with several tiny holes through which air is constantly blown.
What purpose does air track serve?A scientific tool called an air track is used to investigate motion in a low-friction setting. Its name is derived from the way it is built: air is pumped through a hollow track with tiny holes spaced out along the track to allow specially designed air track cars to float along with little resistance.
Why is it critical to level the air track before doing the experiment?It will be required to level the air-track as carefully as possible in order to examine motion with constant velocity.
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a box of mass m is being accelerated up a vertical wal by a constant force f applied at an angle
Consider a force of magnitude F pulling an object over a surface. The object is moving horizontally, with an angle of between the force and motion direction.
The length of the line AB makes up the force's component in the direction of motion.
What effects does angle have on force?
The component of force perpendicular to the incline reduces as the angle increases, while the component of force parallel to the incline grows. The weight vector's parallel component is what drives the acceleration. As a result, accelerations increase with increasing incline angles.
If we measure the acceleration and the driving force, we can use the formula F = ma to compute the mass of an item moving uniformly in a circle.
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When observing an object, you determine it is moving at a constant velocity and in a straight line. Which of these best describe the situation?.
The net force acting on the object must be zero.
Constant velocity:
A velocity is constant when both its magnitude and direction does not change over time. In simpler words, this is when the rate of change of position of an object remains the same throughout a period of time.
Velocity gives us information about the rate of change of object position, meaning how fast can object position is changing per unit time. In physics, velocity is defined as the displacement divided by time where displacement is defined as the difference between your final and initial positions.
Furthermore, when an object travels the same distance every second, then the object is said to be moving with constant velocity. This means that the magnitude of the velocity (or speed) and the direction of the velocity both remain constant.
Hence the net force acting on the object must be zero when it is moving at a constant velocity and in a straight line.
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A sports car accelerates at a constant rate from rest to a speed of 27. 8 m/s in 8. 00 s. What is the displacement of the sports car in this time interval?.
The displacement of the sports car is approximately 222.4 m. This is the distance traveled by the car in the 8.00 s time interval, assuming that it accelerates at a constant rate.
To calculate the displacement of the sports car, you will need to know its acceleration as well as its initial and final velocities. Displacement is defined as the change in position of an object, and it can be calculated using the equation:
Displacement = (Final Velocity + Initial Velocity) / 2 * Time
In this case, the initial velocity of the sports car is 0 m/s (since it is starting from rest) and the final velocity is 27.8 m/s. The time interval is 8.00 s. Plugging these values into the equation above, we get:
Displacement = (27.8 m/s + 0 m/s) / 2 * 8.00 s
This simplifies to:
Displacement = 27.8 m/s / 2 * 8.00 s
This further simplifies to:
Displacement = 27.8 m/s * 8.00 s / 2
This simplifies to:
Displacement = 222.4 m
So the displacement of the sports car is approximately 222.4 m. This is the distance traveled by the car in the 8.00 s time interval, assuming that it accelerates at a constant rate.
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the Earth is on average 150 million km from the sun calculate its average speed in orbit?
Answer:
Orbital velocity of earth is 2.89 × 10⁵ m/s
Explanation:
Is frequency the distance between waves?
No , frequency of a wave is not distance between waves, it is called wavelength.
Frequency is the number of waves that pass a particular point in a given period of time. It is typically measured in Hertz (Hz), which is the number of waves per second. Wavelength, on the other hand, is the distance between two consecutive crests or troughs of a wave. It is typically measured in meters (m). So frequency and wavelength are related, but they are not the same thing. Frequency is a measure of the number of waves, while wavelength is a measure of the distance between waves.
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objects x and y are connected by a string of negligible mass and suspended vertically over a pulley of negligible mass, creating an atwood’s machine, as shown in the figure. the objects are initially at rest, and the mass of object y is greater than the mass of object x. as object y falls, how does the kinetic energy of the center of mass of the two-object system change? justify your selection. all frictional forces are considered to be negligible.
The kinetic energy increases because the gravitational force due to Earth does positive net work on the system.
What is law of conservation of energy?Energy cannot be created or destroyed, according to the law of conservation of energy. However, it is capable of change from one form to another.
When objects x and y are connected by a string of negligible mass and suspended vertically over a pulley of negligible mass, the system stored gravitational potential energy. When object y falls, this potential energy changes into kinetic energy.
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What does the N stand for in this formula?
The total number of subjects or observations in the sample is denoted by the letter "n."
What does math's N stand for?The collection of all natural numbers is known as N. Positive, non-zero whole numbers make up the natural numbers. N = 1 , 2 , 3 , 4 , .
What does N in a series represent?The letter "n" represents the word "number." By changing the term number's value, we can create a sequence utilizing the nth term ( n ). Following the sequence's formula, we would substitute 10 for "n" to obtain the 10th term; similarly, we would substitute 50 for "n" to discover the 50th term.
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A sprinter runs from the 6-meter line to the 38-meter line in 8.0 seconds. How far did she travel?
Answer: She travelled 32 meters.
Explanation:
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When oberving an object, you determine it' moving at a contant velocity and in a traight line. Which of thee BEST decribe the ituation?
The correct answer is B) the net force acting on the object must be zero.
If an object is moving at a constant velocity and in a straight line, it means that the net force acting on the object is zero. This is because the velocity of an object is a measure of its speed and direction of motion, and if an object is moving at a constant velocity, it means that its speed and direction are not changing. In order for an object to change its velocity, there must be a net force acting on it. If the net force is zero, the object will continue to move at a constant velocity in a straight line.
A) there are no forces acting on the object is incorrect, because there are always forces acting on an object, such as gravity, friction, and air resistance.
C) the net force acting on the object is pushing in the same direction the object is traveling is incorrect, because if the net force is pushing in the same direction as the object is moving, it would cause the object to accelerate in that direction, rather than maintaining a constant velocity.
D) the net force acting on the object is pushing in the opposite direction the object is traveling is incorrect, because if the net force is pushing in the opposite direction as the object is moving, it would cause the object to decelerate or change direction, rather than maintaining a constant velocity.
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The question is -
When observing an object, you determine it is moving at a constant velocity and in a straight line. Which of these BEST describes the situation?
A) there are no forces acting on the object
B) the net force acting on the object must be zero
C) the net force acting on the object is pushing in the same direction
the object is traveling
D) the net force acting on the object is pushing in the opposite direction the object is traveling
What is the process of splitting light called?
The dispersion of white light into its various colors is referred to as dispersion. Due to the medium's refraction property, each wavelength moves through the medium at a different pace, producing this property.
What is the term for the splitting of light?Dispersion is the name for the process through which visible light separates into its individual colors.
What splits the light, and why?We have seen that when white light is transmitted through a glass prism, it is scattered into the spectrum of colors that make up white light. Therefore, we can observe that the phenomena of light separating into its individual hues is called dispersion of light.
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If a net horizontal force of 8. 2 n is applied to a baby carriage whose mass is 11. 5 kg what acceleration is produced?.
Answer:
Below
Explanation:
F = m * a
8.2 N = 11.5 kg * a
a = .71 m/s^2
How much of a company's emissions are Scope 3?
On average, firms emit 75% of their total greenhouse gas emissions under Scope 3. According to the CDP, a company's emissions typically make up 75 percent of Scope 3 emissions.
What are emissions under Scope 3?Scope 3 covers emissions that come from assets up and down the firm's value chain, but not from the company itself or as a result of their ownership or control of those assets.
How many different Scope 3 emission categories are there?Although not every category will be applicable to all enterprises, the GHG Protocol lists 15 categories of scope 3 emissions. Scope 3 emission sources comprise emissions from both the organization's operations upstream and downstream.
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What is simple and composite signal?
Answer:
Periodic analog signals can be classified as simple or composite. A simple periodic analog signal, a sine wave, cannot be decomposed into simpler signals. A composite periodic analog signal is composed of multiple sine waves.
Explanation:
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Shepherd satellites are defined as?
A Shepherd satellite is a natural moon that orbits near the edge of a planetary ring to stabilize the ring's particles through its pull. Its name is given Shepherd, as they restrict hub particles as a shepherd.
They pick up particles through their gravitational pull and, using orbital resonance, deflect them from their original orbits. Examples are the moons of Uranus, known as Cordelia and Ophelia.
The rings of Uranus show are very thin and well-defined, with sharp gaps between them. This was explained by Goldreich and Tremaine. They suggested that two small satellites might be confining each ring. The first images of shepherd satellites were taken by Voyager.
The complex ring system of Saturn has many such satellites. A few are Prometheus, Daphnis, Pan, Janus, and Epimetheus.
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if we measure distance with foots how much error generates?
Answer:
It generates many of the mistakes
Explanation:
When we meassure the distance with foot uniform velocity there there may arise many problems people foots are different to each other When we are measuring the distance from foot that is uniform velocity we must be very careful the timing of time and foot should be similar If not than there may generate many errors
The great mathematician Pythagoras also used the measurement with foot and he was successful because of his timing due to this he find the circumference of earth
What are 3 examples of irony in The Interlopers?
The 3 examples of irony in The Interlopers are:
Death by Nature: It's ironic that two men went hunting and were hunted by a pack of wolves.
Call for Help: It's ironic that the couple's decision to use his call ends up attracting a pack of wolves instead of fellow travelers.
Forgiveness: Too Little, Too Late: It's ironic that two men decide to put an end to a generational feud, and die shortly after their disagreements are resolved without even witnessing the exchange.
What is irony?
Irony in its broadest sense is the juxtaposition of what appears to be on the surface and what is or is expected to be. It is an important rhetorical and literary technique. Sarcasm can be divided into several types, including verbal sarcasm, dramatic sarcasm, and circumstantial sarcasm.
Therefore, The 3 examples of irony in The Interlopers are:
Death by Nature, Call for Help, Forgiveness.
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What causes magnetic stripes on the seafloor ?
Answer:
The striped magnetic pattern develops because, as oceanic crust pulls apart, magma rises to the surface at mid-ocean ridges and spills out to create new bands of ocean floor. Later, after the planet’s magnetic field flips again, the next stripe of new ocean floor aligns its polarity.
Explanation:
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What are authorized sources for derivative classification?
An existing, correctly designated source document that has been extracted, rephrased, restated, and/or generated in a new form for inclusion in another document counts as a second permitted source for derivative classification.
Who is eligible to serve as an initial classification authority?the OCA rollover Classification Authority at Origin a person appointed in writing to classify material in the first instance by the President, the Vice-President, agency heads, or other president-designated officials.
What information is contained in the block containing the categorization authority?The classification authority block, or CAB, indicates who has power over and how long the classification determination will last. It identifies the person who classified the document, what it was generated from, what it was downgraded to (if applicable), and the date it was declassified.
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the sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) calculate the surface temperature of the sun, given it is a sphere with a 7.00 108 m radius that radiates 3.80 1026 w into 3 k space.
The temperature of surface of Sun = 5743.8 K
What is Stefan's Law ?
It states that the radiation emitted from area A of a black body at absolute temperature T is directly proportional to the fourth power of the temperature,
Or, P = σeAT⁴
Radius of sun = 7.00×10^8 m
Surface area of sphere, A = 4π*r²
σ = 5.67×10^-8
Power radiated by sun, P = 3.80*10^26 W
Power radiated by a body is given by, P = σeAT⁴
∴ T = [P/(σeA)]^(1/4)
T = [3.80×10^26/(5.67×10^-8×1×4×π×(7.00×10^8)^2)] ^ (1/4)
T = 5743.8 K
Therfore the temperature of surface of Sun = 5743.8 K
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Why is it important to have a reference direction specified before describing a location in terms of positive or negative?n
It is important to have a reference direction specified before describing a location in terms of positive or negative because that reference point is the 0 Value of the distance we are going to describe in Negative or positive direction as that direction is given according to the point 0.
What is direction?Direction is the path given from a reference point telling that how much something travelled or developed in a specific position.
Reference point:
It is the fixed point from where soemithin is defined is respect with that reference point. As example the distance of Suraj from Reeta is 2 km here Reeta is reference point.To know more about Direction visit
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Why do we use current i?
The symbol for current is I which originates from the French phrase i.e. intensité du courant that means current intensity.
Why do we use currently I?The use of the symbol “I” for current might seem unreasonable but the label appeared from a historical French term. In the 1820s, André-Marie Ampère showed that two parallel current-carrying wires will bring or repel each other depending on the direction of the currents lose through them.
The symbol I Ohm's law states that the current flowing through a conductor to the voltage V and resistance R that is, V = IR.
So we can conclude that Current is calculated in amps, symbolized by the letter “I”.
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The white dwarf that remains when our Sun dies will be mostly made of ______.
a) helium
b) carbon
c) neutrons
d) hydrogen
The white dwarf that remains when our Sun dies will be mostly made of
(b) carbon is correct option.
A star core remnant known as a white dwarf is primarily made up of electron-degenerate materials. White dwarfs are very dense objects with masses similar to the Sun and volumes similar to the Earth. White dwarfs do not undergo fusion, thus their feeble light is caused by the emission of leftover thermal energy. Sirius B, the smaller half of the Sirius binary star and the closest white dwarf to Earth, is 8.6 light years away. Among the 100 star systems closest to the Sun, eight white dwarfs are currently believed to exist. White dwarfs are unusually faint, and this was first noticed in 1910. Willem Lutyens first used the term "white dwarf" in 1922.
Since stars with very low masses cannot fuse helium, binary systems may experience mass loss that results in the formation of helium white dwarfs. In a white dwarf, the material no longer undergoes fusion processes, depriving the star of its energy source.
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How do you find nSolve?
You may get approximate numerical values for each of a polynomial equation's roots with NSolve. NSolve can be used to solve groups of concurrent equations. Mathematica's numerical mathematics (Mathematica Tutorial)
Describe NSolve.Equation, "Variable = initial value," NSolve identifies numerically all possible answers to the given equation for the provided unknown variable and its initial value.
What makes solve and NSolve different from one another?To solve an equation or group of equations algebraically, use the function solve. Although it is sometimes preferable to have a numerical solution, it is not always possible to solve an equation algebraically. In either scenario, a group of equations or an individual equation can be solved numerically using NSolve.
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Immediately after they push away from each other, how does the motion of the mother and daughter change?.
Both travel rearward, but the daughter accelerates more quickly motion.
Every action has an equal and opposite response, according to Newton's third law of motion. Consequently, when the two skaters collide. They'll both advance backward together.
However, the mother weighs 100 kg, compared to the daughter's 50 kg. due to the daughter's lower mass. Daughter as a result accelerates more quickly in the reverse direction.
As a result, both travel backward, but the daughter does so more quickly than the mothe motionr.
The following is an expression that represents Newton's second law:
a = F/m and F = ma or
According to this law, a body's acceleration is determined by two variables. The first is the body's mass and the net force that is operating on it. The acceleration is directly proportional to the net force acting on the body and inversely proportional to the mass.
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how can i run my car heater at maximum setting to cool down the engine if the car is overheated and the engine is stalled and just cranks without starting?
An engine can be cool down by the below steps
Leave the radiator cap on until it is coolPop the hood when there is no more steam coming out.Knowing how to cool an overheated engine is a significant expertise for any authorized driver. Having the option to analyze and fix your own issues can get you back out and about rapidly, forestall exorbitant mechanical issues, and assist you with realizing when to look for proficient assistance.
Steps which I can take to cool down an overheated engine of car:
The strain and steam inside can shoot a hazardous fly of liquid back at your face. Avoid any and all risks and leave the radiator cap on the vehicle however long you can. Assuming it feels warm to the touch, leave it.In the event that the vehicle isn't excessively hot, switch off the vehicle and pop your hood. Assuming the hood is incredibly hot to the touch or on the other hand on the off chance that you see steam, it is prudent to hold on until the hood cools before you open it as far as possible. Opening the hood disperses a portion of the intensity away from the motor.To know more about engine,visit here:
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