imagine that a tank is filled with water the height of the liquid column is 7 and the area is 1.5 square meters into the second power what's the force of gravity acting on the column of water

The longest wavelength at which a metal will emit an electron is 520 nm.

Wave length is determined by the wavelength, which is also the separation between two wave crests and troughs. The amount of vibrations that pass through a certain region in a second is referred to as "frequency," and it is expressed in cycles per second (Hz) (Hertz). The link between wavelength and frequency is discussed in this article.

The distance between identical points (adjacent crests) in adjacent cycles determines how far a waveform signal has traveled in space or over a wire. In wireless systems, this length is frequently specified in meters (m), centimeters (cm), or millimeters (mm) (mm).

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Answer:

Work in + Work wasted = Work out

The data is probably not correct since the work produced should be less than the work input

Ride's rotation that will keep the student pinned to the wall once the floor drops is  3.97 sec.

rotation is a type of trasfermation that takes each point in a figure and rotates its a certain number.

Mass of student = 50 kg

Coefficient of static friction  \mu = 0.8 μ=0.8

Ride diameter  d = 10 m d=10m

Ride radius  r = \frac{d}{2} = 5 m r= 2d

=5m

Acceleration due to gravity  g = 10 m/s^2 g=10m/s

2

Maximum period of ride's rotation =

Formula:   \text{ Maximum period } = \500{\text{ Circumference }}{\10m/s{ Velocity }}  Maximum period =

Velocity

Circumference                

Step 1: Calculating the static frictional force and normal force

This frictional force will be equal to the student's weight to

 find out what minimum static frictional force is required

Hence, maximum period of ride's rotation  P = 3.97 P=3.97 sec

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A capacitor, because it has the greatest reactance at frequency f = 0 Hz.

A capacitor is a device that stores electrical energy in an electric field through the accumulation of electrical charges on two nearby surfaces insulated from each other. It has two terminals and is a passive electrical component. Charges flow through the capacitor when it is supplied with electricity, but this flow is blocked by the insulation between the metal plates. Since the capacitor's electrode plates are separated by an insulator (air or dielectric), no direct current can flow unless the insulator decays. In other words, a capacitor blocks direct current. When we connect a capacitor across an AC power source, it starts charging and discharging continuously due to the continuous change in the supply voltage. Capacitors do not store charge. Capacitors actually store a charge imbalance.

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The Power provided by the student's biceps is 7.5 J/s.

Given,

Mass = 50kg

Distance = 0.3 meters

Time = 2 seconds

W = fd

P = W/(t₂ - t₁)

To find work

W = (50kg)(0.3m)

W = 15J

To find power.

P = 15J / 2 - 0

P = 15J / 2

P = 7.5 J/s

Therefor the power is 7.5J/s

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It is demonstrated that the current carrying surface's solid angle subtended by the magnetic field for a straight wire at any location in space is directly proportional to the magnetic field along the axial direction.

As long as the wire is straight and the current density is uniform, the result is valid wherever, i.e., on the axis or off-axis, for an infinite or finite wire.

In a number of unique circumstances where unexpected outcomes can be easily produced and presented, the geometrical relationship is employed.

As you move further from the wire, the field's strength diminishes, therefore you would expect the field lines' spacing to grow as well.

Therefore, With a second application of the right-hand rule, the direction of this magnetic field can be determined.

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1. The force of gravity on the ship at that orbit be using the early measurements be 5.435 × 10^5 N..

2.  The acceleration of your lander due to gravity be 4.94 m/s^2..

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

Given that:

Planet Proxima Centauri B has a mass of approximately 6x10^24 kg.

colony ship lander has a mass of approximately 1.1x10^5 kg.

stable orbit  radius of 9000000 m from the center of planet Proxima Centauri B.

1. Using Newton's Law of Universal Gravitation,  the force of gravity on the ship at that orbit be using the early measurements = GMm/r²

= (6.67 × 10⁻¹¹)×(6x10^24)(1.1x10^5)/(9000000)² N

= 5.435 × 10^5 N.

2.  the acceleration of your lander due to gravity: a = F/m

=  5.435 × 10^5 N/ 1.1x10^5 kg.

= 4.94 m/s^2.

3.The possible causes that would account for the difference in expected vs. actual values are:

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If the charge on q1 is doubled the force becomes 4 times its initial value.

The charge of each object has a direct impact on electrostatic force. Therefore, the force will increases if the charge of one object is doubled.

The square of the distance between the two charges has an inverse relationship with the force's size. As a result, when the gap between two charges is doubled, the attraction or repulsion weakens and drops to one-fourth of its initial strength.

Since, we know

F = (k×q1×q2)/r²

When the charges are doubled, we have :

F' = (k × 2q1 × 2q2)/r²

F' = 4 (k×q1×q2)/r²

Thus,

F' = 4F

Hence, the force becomes 4 times its initial value.

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The formula c=physconst(lightspeed); cfpm = convvel(c, "m/s," "ft/min") transforms the lightspeed from m/s to ft/min using the convvel function in MATLAB.

per second in milliseconds. C is a symbol for lightspeed. The definition of cfpm in feet per minute is the speed of light. The speed of light in a vacuum, a fundamental scientific constant that is frequently abbreviated as c, is significant in many fields of physics. The precise speed of light is 299,792,458 metres per second (about 300,000 kph; 186,000 mph).The multi-paradigm programming language and computer environment known as MATLAB were developed by the MathWorks corporation (short for "MATrix LABoratory"). You may work with matrices, plot functions and data, use algorithms, create user interfaces, and communicate with other programming languages with MATLAB.

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The kinetic energy of the rock right before it impacts the ground is 2940J.

Solution:

[tex]E_{P} = m_{gh}[/tex]

10 KG * 9.8m/s² * 30 m

[tex]E_{p}[/tex] = 2940 J

A falling ball has kinetic energy due to its motion. Therefore, the potential energy stored in the ball in its elevated position is converted into kinetic energy when the ball falls. When an object is in free fall, its potential energy is converted into kinetic energy.

When an object hits the ground its kinetic energy is converted into heat and sound energy. When an object falls, its potential energy decreases, and its kinetic energy increases. A decrease in potential energy is exactly the same as an increase in kinetic energy.

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The work is positive when you ride up the escalator and negative when you ride down the escalator.

What is work?

Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. In its simplest form, it equals the product of the force's magnitude and the distance traveled for a constant force directed in the same direction as the motion.

So, work done is positive when you ride up the escalator and negative when you ride down the escalator.

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The same spot he started, his displacement is 0 meters.

What is displacement?
A displacement is indeed a vector in geometry as well as mechanics that has a length equal to the shortest distance between a point P's initial and final positions. It measures the length and angle of the net motion, or total motion, in a straight line from the starting point to the destination of the point trajectory. The translation that links the starting point and the ending point can be used to spot a displacement. The final position xf of the a point relative towards its initial position xi, or even a relative position (resulting from of the motion), is another way to describe a displacement. The difference between both the final and initial positions can be used to define the corresponding displacement vector.

Dexter's displacement is 0 meters.
This is because the total distance traveled (500.0 m north + 200.0 m east + 300.0 m south + 400.0 m west) is 1,200.0 meters,
But the total displacement is 0 meters because he is ending up in the same place he started.
Displacement is the total distance traveled in a straight line from the starting point to the ending point.
Since Dexter is ending up in the same spot he started, his displacement is 0 meters.

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a portable lamp with a 30 ohm resistance, 0.80 a current demand, and a 24 v power source

 The Super Bright LED Recharge Portable Scene Light II of Streamligh has 10,000 lumens, which is the most lumens we've found in an LED lantern.

E39 bulb, 300 watts: The brightest bulb currently available. It has a high efficiency of 130 lumens per watt and produces over 40,000 lumens. The 1000 watt HID, HPS, Metal Halide, or CFL fixture can be replaced with this one, which also delivers 360-degree lighting.e

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The escape speed from the planet is 60000 m/s.

Calculation:-

g=GM/R^2

ve=√2GM/R`

ve=√2(GM/R^2)R

ve=√2GR

ve=√2×30×6×10⁷

ve=60×10³m/s

The rate of change in the position of an object in any course. Speed is measured because of the ratio of distance to the time wherein the distance became included. Speed is a scalar amount because it has the handiest route and no significance.

Velocity can be notion as the rate at which an object covers distance. A quick-moving object has a high speed and covers a notably big distance in a given amount of time, whilst a sluggish-shifting item covers a relatively small amount of distance in the same amount of time.

The primary unit or the S.I. unit of velocity is m/s or ms⁻¹

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Step1). We would first try to balance C and O because it is present in compound form on RHS.

Step2). After that we will balance H

The speed of the given point on earth's surface is 428 m/s

A point located 1/4 of the length of the arc between the equator and the pole has an angle:

(1/4) × 90° = 22.5°

Since the arc angle of the line joining the equator and the pole is 90°

So the angle between the line joining the center and the given point, and the line joining center and the pole is  Φ = 90° - 22.5° = 67.5°

Now,

Sin Φ = (radius of the point)/(radius of the earth)

Sin 67.5 = radius of the point/(6.37 × 10⁶)

Radius of the point:

r = 6.37 × 10⁶ × 0.9239 = 5.885 × 10⁶ m

Speed of the point on the globe is v = 2πr/(24 hours)

2πr = 2π × 5.885 × 10⁶ = 3.6977 × 10⁷ m

So the speed of the point is :

v = 3.6977 × 10⁷/24

v = 1.541 × 10⁶ m/h

v = 428 m/s

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The calculated pressure is 40 atm. An area of the Earth's atmosphere that has a very high or low pressure in comparison to the air surrounding it is referred to as a pressure system.

The distance between air molecules is all that is meant by the term pressure. High pressure is created when the air is compressed and tightly confined. Low pressure occurs when the air is dispersed. Boyle's law states that if T is constant, then so is the PV.

∴P \s1

V 1 + P 2 + P 3 + P 4 =P 4 V 4

P 4 stands for total pressure, and V 4 stands for total volume.

The total capacity of all the containers is now V 4 = V 1 + V 2 + V 3 = 1+1 + 0.5 = 2.5L.

Now, after plugging all the data into equation (1), we get 3001+2401+4400.5=X2.5 X= 2.5 760 =304mm, where 760mm is 1atm. The conversion from 304mm to 760 304 = 0.4 atm

Therefore, x=0.4 atm.

100x=40atm

The complete question is- Consider the arrangement of bulbs shown in the drawing. Each of three bulbs contains a gas at pressure shown. What is pressure of system when all stopcocks are opened. Assuming that temperature remain constant. (Neglect the volume of capollary tubing connecting bulbs)

A-440 torr

B-200 torr

C-360 torr

D-320 torr

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The ladder from slipping [tex]\mu=0.2886[/tex].

Solution:

If the ladder is not slipping then at point A, the net forces acting will be equal to 0

[tex]-\mu N_{1}+N_{2}=0[/tex]    ( Horizontal forces)

[tex]N_{1}-mg=0[/tex]           (vertical forces)

from the above two equations we get,

[tex]N_{1}=mg and N_{2}=\mu mg[/tex]

Now the torque at point A must also be 0

so,

[tex]N_{2}Lcos\theta -\frac{L}{2}mgsin\theta =0[/tex]

Putting the previously obtained values

[tex]\mu mgLcos\theta =\frac{L}{2}mgsin\theta[/tex]

L is the length of the ladder.

[tex]\mu=\frac{1}{2}\frac{sin\theta }{cos\theta}[/tex]

[tex]\mu=\frac{1}{2}tan\theta[/tex]

[tex]\mu=\frac{1}{2}tan30^{0}[/tex]

[tex]\mu=0.2886[/tex]

When the foot presses the ground the foot slides back if there is no friction. Traction pushes the foot in a direction that prevents it from slipping resulting in forward motion. To determine the minimum coefficient of static friction between two materials create an inclined plane from one of the materials and place an object of the other material on top of it. Increase the tilt angle until the body starts to slide.

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Keeping everything else the same, shrink the star to 0.1 times the sun's radius. This makes it simple to find planets orbiting big stars.

What are stars?

Large celestial bodies known as stars are primarily composed of hydrogen and helium and generate light and heat in their centres from churning nuclear forges. The other stars we can see in the sky are all light-years away from Earth, excluding our sun.

Because larger planets block more light and transit more frequently, making them easier to detect, this method has a bias towards finding huge planets circling near to their stars, similar to the radial velocity method. Additionally, there is a tendency to detect large planets surrounding tiny stars.

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The lungs of a scuba diver should expand to a volume of 12 L, the volume of air in her lungs will grow with an increase in surface air temperature, and the rms speed of the air velocity in her lungs won't change.

It is stated that water has a density of 1000 kg/m3. The diver's 6L lung capacity allows her to descend 10m under the sea. We may suppose that the water's temperature is constant.

A. The pressure P₁ at the surface of water is 100000 Pa.

So, the pressure at the depth of 10m in water will be given by,

P₂ = 1000x10x10 + P₁

P₂ = 100000 + P₁

P₂ = 200000 Pa

Now, we can write,

P₁V₁ = P₂V₂

Putting values,

6 x 200000 = V₂ x 100000

V₂ = 12L.

Her lungs should thus enlarge to 12L.

B. Because of the continuous pressure at the surface, the air warming will further increase the amount of air in the lungs.

C. The Vrms are provided by,

Vrms = √(3RT/M)

The Vrms won't change if the temperature stays constant since the air's mass will remain constant.

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The equations that result from this 10T1 = 3700 or T1 = 370N and T2 = 130N.

What is equation?
In a mathematical equation, the equals sign is used to express that two expressions are equal. The meanings of the word equation as well as its cognates in those other languages can vary slightly. For instance, in French, an equation is defined as having one or even more variables, whereas in English, an equation is any well-formed formula that consists of two expressions linked by the equals sign.

Finding the values for the variables that result in the equality is the first step in solving an equation with variables. The unknown variables are also known as the variables whereby the equation must be solved, and the unknown variable values that satisfy the equality are known as the equation's solutions.

Assume that T1 represents the tension inside the rope closest to the 400N person, and T2 represents the tension in another rope. T1 + T2 = 500N for translational equilibrium. The clockwise and counterclockwise torques about the beam's centre must be equal for there to be rotational equilibrium: 5T1 = 5T2 + 1200. These two equations can be combined to produce the following result:
T1 + T2 = 500
5T1 = 5T2 + 1200   or
T1 + T2 = 500
5T1 - 5T2 = 1200

multiply both sides of the first equation by 5, add the resulting equations to get 10T1 = 3700 or T1 = 370N and T2 = 130N.

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The acceleration of both the box will indeed be 0.8 m/s² when the friction factor is 0.12.

Acceleration is the pace at which the speed and direction of a moving object change over time. Something is said to be accelerating when it commences to move quickly or slowly. Even if the voltage is constant, transportation on a circle accelerates because the angle is always shifting.

According to the given statement we have frictional force f = µ •N

where N = normal force = mg

the given Sliding friction µ= 0.12

therefore f = 0.12 × 50 × 10 = 60 N

hence net friction = applied friction - frictional force = 100 - 60 = 40 N

also we know that Force F= ma

therefore we have acceleration formula ,

acceleration = force/mass = 40 / 50 = 0.8 m/ s²

hence the acceleration of the box is 0.8 m/s².

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The moment of inertia of wheel a will be twice the moment of inertia of wheel b. This is because the moment of inertia is proportional to the mass of an object.

What is inertia?
The concept of inertia states that an object will maintain its current motion until a force changes its speed or direction. The phrase should be understood as a shortened form of Newton's first law of motion's description of "the principle of inertia." Newton's Latin is directly translated into the word "perseveres" in this sentence. In contemporary textbooks, other, softer words like "to continue" as well as "to remain" are frequently used. The modern application results from some modifications made by Euler, d'Alembert, as well as other Cartesians to Newton's original mechanics (as noted in the Principia).

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The amount of work that the engine of the spacecraft must do to move above the circular orbit is 1.48 x 10⁻¹⁷ mM (Joules).

The amount of work that the engine of the spacecraft must do to move above the circular orbit that is 4500 km above the surface is calculated by applying the following formula.

W = Fd

where;

The gravitational force of the spacecraft is given as;

F = GmM/R²

where;

The work that must be done by the spacecraft is given as;

W = FR

W = GmM/R² x R

W = GmM/R

W = (6.67 x 10⁻¹¹ x mM) / (4500000)

W = 1.48 x 10⁻¹⁷ mM (Joules)

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First assertion:

The relationship between electromagnetic radiation's wave, wavelength λ, and oscillation frequency is established by the speed of light. The formula is provided by:

c=vλ

Thus, the first claim is accurate.

Second assertion:

c=vλ

c= 3.0A×1.0×10¹⁸Hz

c= 3.0×10⁻¹⁰m×1.0×10¹⁸s⁻¹

c= 3×10⁸m/s

In a vacuum, c has a value of 3×10⁸m/s. So, the second assertion is accurate.

Third assertion:

No matter the type of electromagnetic radiation, the speed is always the same.

As a result, the third claim is untrue.

What is electromagnetic radiation?

The speed of light (2.998 x 108 m/s) is the rate at which an electric and magnetic disturbance called electromagnetic radiation travels through space. It moves in radiant energy packets known as photons or quanta and is neither massless nor electrically charged.

What are the 7 types of electromagnetic radiations?

The parts of the electromagnetic spectrum are referred to as gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves, from highest to lowest energy.

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823 ft high is the stone 3 seconds later.

What is motion?

The change in the position of the object with respect to time is called motion in physics.

We know that

[tex]y=y_{0} + V_{0}-\frac{1}{2} gt^{2}[/tex]

where,

[tex]y[/tex] is the height of the stone at 3s (the value we want to find)

[tex]y_{0}[/tex] is the initial height of the stone

[tex]V_{0}[/tex] is the initial velocity of the stone

[tex]t[/tex] is the time  at which we need to find the height

[tex]g[/tex] is the acceleration due to gravity

Therefore,

[tex]y = 925+(14)(3)-\frac{1}{2} (32)(3)^{2}[/tex]

= 823 ft

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The velocity of an object is represented by the slope of a location graph. Thus, the slope's value at a given instant corresponds to the object's velocity at that precise moment.

What does a graph of position vs time reveal?

Position in relation to the starting point is plotted on the y-axis of a position vs. time graph, while time is plotted on the x-axis to represent motion. The gradient of a position vs. time graph serves as a representation of the velocity. The slope gets steeper as the motion changes more quickly.

Where is the time graph located?

The Position Time Graph: What Is It?

The Position-Time graph is the graph on which the time t and the instantaneous position x of a particle are shown.

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The examples that were originally classified as a nebula are Orion nebula, Hercules globular star cluster, Andromeda galaxy, and Ring nebula; option A, B, C, and D.

A nebula is a giant cloud of dust and gas that is found in space. More than one nebula is collectively called nebulae. The gases present in a nebla are usually hydrogen and helium.

Some nebulae are made from the gas and dust that are released by the explosion of a dying star, for example in a supernova.

Some other nebulae are the sites for the formation of new stars.

The four types of nebulae are:

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The amplitude of the oscillations change as time goes on is the more rigid (or less compressible) the medium, the faster the speed of sound.

In physics, amplitude refers to the greatest displacement or distance that a point on a vibrating body or wave can move relative to its equilibrium location. It is equivalent to the vibration path's half-length.

Distance between the wave's resting position and its highest displacement is known as amplitude. The number of waves that pass by a specific location each second is known as its frequency. Period: the amount of time needed for a wave cycle to complete.

Sound waves' relative strength, which we experience as loudness or volume, is known as amplitude. Decibels (dB), which stand for sound pressure level or intensity, are used to measure amplitude.

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The tension in the rope at the lower part of the swing is 388.2 N.

The tension in the rope at the lower part of the swing is calculated by applying the following formula.

T = W + Fc

where;

T = mg + mac

T = m (g + ac)

T = m (g + v²/r)

where;

The magnitude of the tension in the ropes is calculated as;

T = 30.8 (9.8  +  4.2²/6.29)

T = 388.2 N

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