the timer was set for 40 hz in this experiment and it produced a spot on the tape every 25 ms. if you set the timer to 10 hz, what would be the elapsed time between spots?

fuel is required for an airplane to travel 460 nm is 205 pounds. 460 nm / 180 nm/hr * 80 /hr = 205. 180 kg.Calculate the descent's approximate duration, compass bearing, distance, and fuel usage.

The most widely used unit of fuel consumption, liters per 100 kilometers, can be calculated using the formula below.Litres per 100 km = (Litres consumed X 100) km traveled.

The weight and surplus propulsion horsepower both affect rate of climb.In most cases, the formula reads:Excess Thrust Horsepower ( hp twice 33,000 split by Weight gives you Rate of Climb (R/C=ETHP x 33,000/W).

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The criteria and the constraints of a project aims to find if the criteria are met by certain standards.

Criteria and constraints can be tested in several ways to ensure that they are being met:

User Acceptance Testing (UAT): This is a testing process that involves end-users to determine if the requirements specified in the criteria and constraints have been met. UAT allows you to verify that the solution meets the needs of the end-users.

System Testing: This is a comprehensive testing process that validates the entire system, including the criteria and constraints. System testing verifies that the system functions as intended and meets the specified requirements.

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The far side of the Moon is the best location for an astronomical radio telescope observatory because it is shielded from most of the radio noise from Earth.

A telescope is an instrument used to observe distant objects by collecting and magnifying electromagnetic radiation (such as visible light, infrared, and ultraviolet radiation). Telescopes come in a variety of sizes and configurations, and are used by astronomers and other scientists to observe the properties of distant stars, galaxies, and other celestial objects. Telescopes are also used by hobbyists and amateur astronomers to observe the night sky. While there are many types of telescopes, the most common are refracting and reflecting telescopes. Refracting telescopes use a combination of lenses to collect and focus light, while reflecting telescopes use mirrors to do the same. Telescopes can also be used to observe the planets in our Solar System, as well as comets and asteroids.

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The speed of the boy is 120 m/s.

Momentum is a measure of an object's motion. It is defined as the product of an object's mass and velocity. The greater an object's mass or velocity, the greater its momentum. Momentum is a vector quantity, meaning it has both magnitude and direction. The law of conservation of momentum states that the total momentum of a closed system remains constant.

The momentum of the tricycle is;

1.20 x 10^3 kg * 2  m/s

= 2.4 x 10^3 kgm/s

Then the velocity of the boy would be

p = mv

v = p/m

v =  2.4 x 10^3 kgm/s/20

v = 120 m/s

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The most important difference in development between Isaac Newton's theory of planetary motion and that of Johannes Kepler was the explanation of why planets move in the way that they do.

Kepler's laws of planetary motion were based on extensive observations of the positions of the planets in the sky, and he discovered that planets move in elliptical orbits around the sun, with the sun located at one of the foci of the ellipse.

Isaac Newton, on the other hand, was able to provide a physical explanation for why planets move in elliptical orbits around the sun. Newton's law of universal gravitation stated that all objects in the universe are attracted to each other with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them.

Using this law, Newton was able to demonstrate that the gravitational attraction between a planet and the sun causes the planet to move in an elliptical orbit.

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The total upward force exerted on the vertical sides of the soft drink can that suddenly reduced to essentially zero, (assuming the can to be a cylinder with a height of 11 cm and a diameter of 6.1 cm) due to atmospheric pressure = 2.27 × 10³ N

The can's exterior surface is affected by atmospheric pressure. We must know the complete surface area of the can that is accessible to the air outside the can in order to compute this upward force. The can is a cylinder, and its total surface area is given by the equation:

2πrh + 2πr²

Where,

r = radius

h = height

Hence,

A = {2 (3.14) (3.05) (11)} + 2 (3.14) (3.05)²

= 269.1037

= 0.026 m²

Atmospheric pressure = 101325Pa

= 101325 N/m²

So, the total upward force:

F = P x A

= (101325 × 0.026)

= 2.27 × 10³ N

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The cement bag and the Earth are part of the problem's closed system (including the river). The bag will therefore be travelling at a vertical speed of about 28.0 m/s when it strikes the water.

In construction, cement is a powder that serves as a binding agent. Iron, silicon, calcium, and silicon are its main constituents. Concrete is a commonly used building material for roads, buildings, bridges, and other constructions. Cement is primarily used to harden and bond components like sand, gravel, and water to create concrete. The most popular type of cement, Portland cement, as well as specialty cements like white cement, cement that hardens quickly, and cement that requires little or no heat are all readily accessible on the market. Although cement has significantly aided in the building of contemporary infrastructure, its manufacture has negative environmental effects, including the generation of carbon dioxide, and efforts are being undertaken to find environmentally friendly substitutes.

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The current across a drain resistor is the same as the current across the drain to source in a MOSFET because the MOSFET behaves as a voltage-controlled resistor.

A resistor is an electrical component that is used to reduce the flow of current in an electrical circuit. It works by creating electrical resistance, which is measured in ohms. This resistance opposes the flow of current, allowing engineers to control the voltage and current levels in a circuit. Resistors are used in many different types of applications, from controlling the speed of motors to regulating the flow of current in digital circuits.

The resistance of the MOSFET channel is controlled by the voltage applied to the gate. If the gate voltage is increased, the resistance of the channel decreases, allowing more current to flow from the drain to the source. Since the drain resistor is in series with the MOSFET channel, the same current must also flow through the resistor.

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The density of the mud should be approximately 1029 kg/m^3 in order for the pressure at point A to be zero.

In order for the pressure at point A to be zero, the pressure at point B must be equal to the pressure due to the weight of the mud column above it. This pressure is given by:

P = ρgh

Since the density of the crude oil is given as 880 kg/m^3. The height of the mud column is given by:

h = P/(ρgh) = 0.1 m/(880 kg/m^3 * 9.81 m/s^2) ≈ 1.14 mm

ρ = P/(g h) = 0.1 m/(9.81 m/s^2 * 0.1 m) ≈ 1029 kg/m^3

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Additionally,early observers noted a few brilliant objects in the sky that appeared to be roving around among the stars.These things were known to the philosophers of antiquity as "planets",which is Greek for "wanderers."

In close proximity to us, the planets move. Like the Earth, they too orbit the Sun.

The study of the universe's objects that are located outside of our solar system is known as astronomy. The Sun, Moon, planets, and stars are examples of things we can view with our unaided eyes. It also includes things that humans can only observe through telescopes or other tools, including distant galaxies and microscopic particles. Additionally, it asks queries regarding dark matter and dark energy, which are examples of substances that are completely invisible to us.

Patterns in the stars were noted by early observers who were staring up at the night sky. Despite appearing to move, these patterns—which we refer to as constellations—don't.

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Earth's inner movements resemble dynamos and produce the magnetosphere. The magnetosphere of Earth is a dynamic, networked system that reacts to solar, planetary, and interstellar circumstances.

The area surrounding a planet where the magnetic field of the planet is dominant is called a magnetosphere. All of the rocky planets in our solar system have magnetospheres, but Earth's is the strongest. The enormous, comet-shaped bubble that makes up Earth's magnetosphere has been essential to the planet's capacity to support life. This magnetic environment has protected life on Earth from its inception and continues to do so. The magnetosphere protects our planet from solar and cosmic ray radiation as well as the solar wind's steady stream of charged particles that stream off the sun, which may erode the atmosphere.

Due to the convective motion of charged,

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When we see the brightest star in the constellation Orion just rising above your eastern horizon at 10 pm and One week later at 10 PM this same star will be at its highest point in the sky, directly overhead .

The position of Stars in the sky changes as the Earth rotates on its axis.

As the Earth rotates, different stars appear to rise in the east and set in the west.

If we see the brightest star in constellation Orion just rising above our eastern horizon at 10 PM, and 1 week later at 10 PM, this same star will be at its highest point in the sky, directly overhead.

This is because the Earth has rotated 1 full revolution in a week, which causes the star to move from the eastern horizon to the overhead position.

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Explanation:

I would recommend watching TV shows like "How the Universe works" or "Space's deepest Secrets".

so, if there were no gravity ?

no bigger bodies or structures would have formed at all. the universe would be one big "sea" of hydrogen atoms (and some helium and very few other atoms, whatever the Big Bang created by itself - depending on what the Big Bang really was, and if there really was such a thing) floating through the ever expanding spacetime.

yes, some tiny structures would have formed via electrostatic forces, and also via chemical reactions forming some larger molecules of atoms driven just by chance and the coincidence that atoms would even get that close to each other. but not many, as the larger atoms (like oxygen) can only be created by fusion of smaller atoms, which can only happen with immense pressure, which can only happen by gravity squeezing atoms together in cores of stars and such.

in other words, no black holes, no Galaxies around them, no stars in them, no planets and moons, no asteroids and comets around them would have formed.

the universe would be dark from the very beginning, just glimmering with the leftover background radiation from the Big Bang (or whatever it was).

there would be actually nothing to observe, literally.

Answer:

h=mv^2/mg

h=v^2/g

Explanation:

please make me as brainlest

Answer:

Answer is in attached photo.

Explanation:

The solution is in the attached photo, do take note for this question, we are making h the subject, and in equations, we can cancel like terms.

The current in the neutral of a three-phase balanced system is equal to the sum of the currents in all the phases in this instance, which is zero.

The speed at which electrons go past a particular location in an electrical circuit is known as current. Current = flow in the simplest terms. The standard unit for measuring current around the world is one ampere.

When two wires are short-circuited, the problem is called a line to line fault or unsymmetrical fault. Phases b and c of a three-phase system with a line-to-line fault are represented in the picture below. One can suppose that Zf is the fault impedance.

I = q t, where is the charge and is the time, is the mathematical formula for current. A current's SI unit is an ampere.

Therefore, The flow of charge particles such as electrons or ions is what is known as electric current. Its unit of measurement is the net flow of electric charge over time.

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The slope of the plot of T vs. m is, m = (k/4π²).

The period of one oscillation of a spring-mass system is denoted by the letter T, and it is the time required for one complete cycle of motion, starting at any point in the cycle and returning to that same point.

The equation for the period T of a spring-mass system is, T = 2π √(m/k),

where k is spring constant and m is the mass of load hanging from the spring.

To find the slope of the plot of T vs. m, we can rewrite this equation in the form, T² = (4π²/k) m.

This is the equation of a straight line with slope, T = (k/4π²).

Therefore, the slope of the plot of T vs. m is, m = (k/4π²).

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--The complete question is, What will be the slope of t vs m graph when using the equation? where; t- period of one oscillation of the spring k- spring constant m- load hanging from the spring.--

The slope is a straight line when the rate constant (lnk) is plotted against the inverse energy of the temperature (kelvin). Where R is a constant equal to 8.314 J/mol-K, the slope's value (m) is equal to -Ea/R.

The bare minimum additional energy needed by a reactive molecule to transform into a product is known as activation energy. The minimal quantity of energy required to activate or energize can also be used to characterize it.

What do threshold energy and activation energy mean?

Threshold energy is the bare minimum of energy required for an effective collision between reactant molecules and product formation. The additional energy needed by the reactants to undergo activation is known as activation energy.

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A 0. 3 zero 0 Your heart might enter a state of fibrillation as a result of a current running through your chest, which would disrupt both the regularity of your beating and the flow of blood (and gas) to your brain.

The meaning of present current

Electrons are one type of electrical charge carrier that flow as current. Current flows from bad to good elements. The SI unit for measuring electric current is the ampere (A). One ampere of current is defined as one conservation of mass of electrical current crossing a specific area in one second.

An electrical current unit is what?

Electric current is the flow of electrons across a conductor. The SI unit for electric current is the ampere. In a substance's molecular structure, there are tiny particles called electrons. Depending on the circumstance, these protons can be held freely or tightly.

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According to the given statement The size of the object is = 0.0002 μm

An object is a discernible grouping of stuff that may move as a unit in three dimensions via translation or rotation and may be contained by a discernible boundary. Irrespective of any other characteristics, every thing has a distinct identity.

The 10x field is equal to 2 mm.  

In order to find out the length of elongated object, we divide the length of 10x diameter with 10 as the elongated object is fitted 10 times.

So, we get 10x/10 = 2 mm /10 = 0.2 mm

To convert this answer into micrometres, we divide it with thousand as 1 mm = 1000 μm

∴ the answer is 0.2×10^-3 μm  = 0.0002 μm

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The statement is yes. Now that you know the weight of the rod, you think that you will be able to carry the rod without a cart.  

Mass is an intrinsic property of a frame. It became traditionally believed to be associated with the quantity of rely on in a physical frame until the discovery of the atom and particle physics. It was determined that extraordinary atoms and exceptional basic particles, theoretically with the same amount of count, have thought distinct masses. Mass in current physics has a couple of definitions that might be conceptually distinct, but bodily equivalent. The mass may be experimentally defined as a degree of the frame's inertia, which means the resistance to acceleration (alternate of velocity) whilst a net force is implemented. The object's mass also determines the strength of its gravitational enchantment to different bodies.

The SI base unit of mass is the kilogram (kg). In physics, mass isn't the same as weight, even though mass is regularly determined by means of measuring the object's weight with the use of a spring scale, in place of a stability scale comparing it without delay with known hundreds. An item on the Moon could weigh much less than it does on this planet due to the decrease in gravity, but it'd nevertheless have the same mass.

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Complete Question:

Now that you know the weight of the rod, do you think that you will be able to carry the rod without a cart? Yes or No?

No, the student has not done any work on the wall. Work is defined by physics as the transfer of energy from one object to another.

In this case, the student is exerting a force on the wall, but since the wall is not moving, no energy is being transferred and thus no work has been done.

Work is a fundamental concept in physics, and it can help us better understand how objects interact with each other and the environment around them. In a general sense, work is defined as the transfer of energy from one object to another, usually through the application of a force. This means that when a force is applied to an object, work is done on it and the object moves in the direction of the applied force.

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Your legs appear to be unattached at the knees where they meet the water, to refract when light waves go from the pool into the air.

Electromagnetic waves come in many varieties. The microwaves in your oven, radio waves, and X-rays are examples of additional electromagnetic waves.

A fluctuating electric field (E) and a varying magnetic field (B) that are perpendicular to each other and the direction of travel are thought to make up light waves.

Sound goes from the air to the water at a different speed. When sound travels through different media, some of it is reflected and only some of it is transferred.

As the acceleration of charged particles (photons) results in light, according to the electromagnetism law, light is an electromagnetic wave. Light may spread without a medium, much like an electromagnetic wave.

Therefore, As light waves exit the pool and refract as they travel into the air, your legs appear to be detached at the knees where they contact the water.

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Answer: it'S B

Explanation:

The work done by the net force is equal to the force multiplied by the displacement. In this case, the force is 11.4 N and the displacement is 19.3 m (9.2 m - (-10.1 m)).

Therefore, the work done by the net force is 11.4 N × 19.3 m = 218.62 Nm.

To further explore this topic, it is important to understand the concepts of work, force, and energy. Work is the product of force and displacement, and is the energy transferred from a system to its surroundings. Force is an external influence that causes an object to accelerate, and energy is the capacity of a system to do work.

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Julio's planned rate of speed would be 90 km/h (kilometers per hour).

This is calculated by taking the total distance (200 km) divided by the total time (2 hours minus 40 minutes, or 1 hour and 20 minutes). So, 200 km divided by 1.33 hours (1 hour and 20 minutes) is equal to 90 km/h.

Speed is a scalar quantity that measures how quickly an object is moving in a given direction. It is usually measured in units of distance per unit of time, such as miles per hour or meters per second. Speed is calculated by dividing the distance an object travels by the time it takes to travel that distance.

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The value of tetha (θ) in which the resultant force will  have a maximum value is 180 degrees.

The maximum value of the resultant vector is calculated by applying Parallelogram law of vector addition as shown below;

R² = a²  +  b²   -  2ab( cosθ )

where;

when θ is 0, the vector will have a minimum value, when θ = 180, the vector will have a maximum value as shown below.

R² = a²  +  b²   -  2ab( cosθ )

R²  = ( 250² ) + ( 150² ) -  2(250 x 150 ) x cos (180)

R² = 160,000

R = √ (160,000)

R = 400 N

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A box is being pushed across the floor by a constant force the coeficient of kinetic friction is at time.

vf = v0 + a * t

where t is the time elapsed.

x = v0 * t + (1/2) * a * t^2

The velocity and position of a box being pushed across the floor by a constant force with a coefficient of kinetic friction depend on the applied force, the mass of the box, and the coefficient of kinetic friction.

Let's call the applied force F, the mass of the box m, the coefficient of kinetic friction μk, the initial velocity v0, the final velocity vf, and the displacement x.

The force of friction Ff can be calculated as:

Ff = μk * m * g

where g is the acceleration due to gravity (9.8 m/s^2).

The net force acting on the box is equal to the applied force minus the force of friction:

Fnet = F - Ff = F - μk * m * g

The acceleration a of the box can be calculated as:

a = Fnet / m = (F - μk * m * g) / m

The final velocity vf can be calculated as:

vf = v0 + a * t

where t is the time elapsed.

The displacement x can be calculated as:

x = v0 * t + (1/2) * a * t^2

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The speed of the stream when the distance and time taken to travel are given is calculated to be 1.41 km/h.

A boat takes 3.4 hrs to travel 30 km.

It takes 5 hrs to return through same distance.

The speed of the boat during the downstream is, v + u = D/t

where,

v is the speed of the boat

u is the speed of the stream

D is the total distance

t is the time

v + u = 30/3.4 = 8.82 km/h

v = (8.82 - u) km/h

The speed of the boat upstream is given as, v - u = D/t

Substituting the values into the above equation,

v - u = D/t

(8.82 - u) - u = 30/5

8.82 - 2 u = 6

2 u = 8.82 - 6

2 u = 2.82

u = 1.41 km/h

Thus, the speed of the stream is calculated to be 1.41 km/h.

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The magnitude of the torque on a molecule depends on various factors such as the orientation and magnitude of the electric dipole moment of the molecule, the electric field strength, and the angle between the electric field and the dipole moment.

The general formula for the magnitude of the torque, τ, on a molecule in an electric field is given by:

τ = p * E * sinθ

where p is the electric dipole moment of the molecule, E is the electric field strength, and θ is the angle between the electric field and the dipole moment.

The units of torque are typically given in Newton-meters (Nm). So, the magnitude of the torque on the molecule would be expressed in Nm.

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The bathtub on the bottom floor will fill faster assuming frictionless pipes and isothermal flow.

In an isothermal flow, the temperature remains constant and the pressure decreases as the height increases. This means that the pressure at the bottom floor is higher than the pressure at the top floor. As a result, the water will flow more quickly through the pipes to the bottom floor, filling the bathtub there faster.

This can be understood by considering the relationship between pressure and flow rate in a pipe: flow rate is proportional to the pressure difference. In this case, the pressure difference between the top and bottom floors is driving the flow of water, so the bathtub on the bottom floor will fill faster.

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