the total amount of work that must be done to compress the string against the restoring force represents the​

The magnitude of the vector sum of the two vectors V and W is determined as 240.84 m.

Resolution of the vectors in x and y axis

The given vector can be resolved into x and y axis as follows;

Vx = Vcosθ

Vx = 448cos(224)

Vx = -322.26

Vy = Vsinθ

Vy = 448 x sin224

Vy = -311.2

Wx = 336 x cos(75.9)

Wx = 81.86

Wy = 336 x sin75.9

Wy = 325.88

∑X = -322.26 + 81.86 = -240.4

∑Y = -311.2 + 325.88 = 14.68

Resultant vector

R = √[(-240.4)² + (14.68)²]

R = 240.84 m

In physics, a vector is a quantity with both magnitude and direction. It is often represented by an arrow whose length is proportional to the magnitude of the quantity and whose direction is the same as that of the quantity. A vector does not have position, while having magnitude and direction. In other words, a vector's shape is unaltered if it is shifted parallel to itself as long as its length is unaltered.

Ordinary quantities with a magnitude but no direction are referred to as scalars in contrast to vectors. For instance, while speed, time, and mass are scalars, displacement, velocity, and acceleration are vector values.

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The distance the boy can walk to the support = Lm

Board force = Fb = 200 N

Rope breaking stress = Fr = 400 N

Distance to rope = Lr = 6 m

Boy = Fm = 400N

Distance to the center of gravity of the board = Lb = 3m

According to the balance rule:

All moments and forces on the board are 0,

= (Fr)(Lr) - (Fm)(Lm) - (Fb)(Lb) = 0

= (400)(6) - (400×Lm) - (200)(3) = 0

= 2400 - 600 = 400 × Lm

= 400× Lm = 1800

= Lm = 1800

400

= Lm = 4.5m.

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The maximum stress that a material can withstand before it breaks is called breaking stress or breaking stress. Also. Breaking stress is the maximum force that can be applied to a cross-sectional area of ​​material so that it cannot withstand additional stress before it fails.

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It will take exactly 84 days with all the researcher's experiments , even after reducing the total time needed to process all samples.

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Here the two force 3N and 3N acting on same direction, so

net force = 3N + 3N

                = 6N

Forces that are balanced are those that are opposite in direction and equal in size, but here the equal forces acts in same direction so it is unbalanced

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Answer:

The physics behind skydiving involves the interaction between gravity and air resistance. When a skydiver jumps out of a plane he starts accelerating downwards, until he reaches terminal speed. This is the speed at which the drag from air resistance exactly balances the force of gravity pulling him down.

Since the cruise ship makes its way from one island to another. The ship is in motion is compared with the reference point of option C. a lighthouse on a nearby island.

Sine the cruise ship from one Island  is relocating, the lengthy duration by the passengers within the ship makes it simple to detect the ship motion.

The skipper is the only one who is aware of the ship's direction and speed. Even though the cargo loads are stable and related to the ship's course, we cannot take them into account when calculating the traveling distance of the ship.

Since it is in the sea and relatively close to it, the lighthouse on the island can be used to calculate the distance traveled by ships. Due to its stability, we can use it as a reference point in the water that can be seen from a great distance.

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A cruise ship makes its way from one island to another. The ship is in motion compared with which reference point?

A.

the passengers on the ship

B.

the captain of the ship

C.

a lighthouse on a nearby island

D.

the cargo inside the hull of the ship

As the source moves toward the stationary observer, the frequency the woman will hear the sound from the siren will be 484.5 Hz

Doppler effect is the frequency change due to the relative motion between a sound or light and an observer.

Given that a woman is sitting at a bus stop when an ambulance with a siren wailing at 440 Hz approaches at 31.5 m/s. If the speed of sound is to be 343 m/s, the frequency the woman hear the sound can be calculated by using the formula

Fo = FsC/(C - V)

Where

Substitute all the parameters into the formula

Fo = (440 × 343) / (343 - 31.5)

Fo = 150920 / 311.5

Fo = 484.5 Hz

Therefore, the woman will hear the sound from the siren at the frequency of 484.5 Hz

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The net external force exerted on a 1000-kg artillery shell accelerated at 2.80 ✕ [tex]10^{4}[/tex] m / s² fired from a battleship is 2.8 * [tex]10^{7}[/tex] N. The magnitude of the force exerted on the ship by the artillery shell is - 2.8 * [tex]10^{7}[/tex] N.

According to Newton's second law of motion,

F = m a

F = Force

m = Mass

a = Acceleration

m = 1000 kg

a = 2.80 ✕ [tex]10^{4}[/tex] m / s²

F = 1000 * 2.80 ✕ [tex]10^{4}[/tex]

F = 2.8 * [tex]10^{7}[/tex] N

This is the net external force exerted by the shell on the battleship.

According to Newton's third law of motion,

[tex]F_{BS}[/tex] = - [tex]F_{SB}[/tex]

[tex]F_{BS}[/tex] = Force exerted by the battleship on the shell

[tex]F_{SB}[/tex] = Force exerted by the shell on the battleship

[tex]F_{BS}[/tex] = 2.8 * [tex]10^{7}[/tex] N

[tex]F_{SB}[/tex] = - [tex]F_{BS}[/tex]

[tex]F_{SB}[/tex] = - 2.8 * [tex]10^{7}[/tex] N

Therefore,

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Answer: The question asks us to find the pressure exerted by the Eiffel Tower on the ground. To answer this question we use the formula

        pressure=Force/Area

and obtain the answer Pressure exerted by Eiffel Tower on the ground =[tex]196000 Pa[/tex]

Explanation: To find the pressure exerted by the Eiffel Tower on the ground we use the formula

[tex]pressure = \frac{force}{area}[/tex]

Given in the problem, the weight of the Eiffel Tower= 9000 tons= 9000000 kg. Ton or kilogram(kg) is a unit of mass and we have to convert it into force

[tex]force = mass * acceleration[/tex]

acceleration due to gravity [tex]g[/tex] =9.8 m/[tex]s^{2}[/tex]

mass = 9000 tons = 9000[tex]*[/tex]1000 kg[tex]= 9000000 kg[/tex]               ∵[tex](1 ton = 1000 kg)[/tex]

∴ [tex]force =[/tex] [tex]9000000* 9.8[/tex] = 88200000 N                 [tex](1 N(newton) = 1 kg.m/s^{2})[/tex]

Given [tex]area = 450 m^{2}[/tex]

∴[tex]pressure =\frac{force}{area}= \frac{88200000}{450} =196000 N/m^{2} = 196000 pascal= 196000 Pa[/tex]

Thus the pressure exerted by the Eiffel Tower on the ground is 196000Pa

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The concept of an inverse squared relationship explains the behavior of intensity of light and distance of the light source. As the distance of the light source increases, the intensity of light decreases.

The law of inverse square law says that intensity equals the inverse of the square of the distance from the source.

Mathematically, the formula for the inverse square law is given as;

I ∝ 1/r²

where;

The intensity of light can be defined as the measure of the amount of power emitted by a given surface or reflected by the surface.

Thus, the inverse square law is all about the inverse relation between the  intensity of light or power output of a given surface to the distance of the light source.

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Gravitational, elastic, and chemical energy are forms of potential energy.

Both kinetic and potsential energy increases with mass.

Ball on the edge of the cliff

A ball is thrown up into the air and rises until it begins to fall

Can be transformed into other form of energy.

We will have the following:

First, we remember:

Then we will have:

So, the frequency of the wave is 53.5 Hz.

The electric force on the proton is 7.9 x 10⁻²² N.

Electric force is defined as the force between two charged objects. According Coulombs law, this force is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges.

F = kq₁q₂/r²

where;

The distance between the two charges is calculated as follows;

r = √(y² + x²)

r = √(0.36² + 0.4²)

r = 0.54 mm

F = (9 x 10⁹ x 1.6 x 10⁻¹⁹ x 1.6 x 10⁻¹⁹) / (0.54 x 10⁻³)²

F = 7.9 x 10⁻²² N

Thus we can conclude that a proton is at the origin and an electron is at the point x = 0.36 nm , y = 0.40 nm will experience a force of 7.9 x 10⁻²² N.

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Answer:

It is because of the pressure exerted by water. As the depth of water increases, the pressure also increases.

Explanation:

It's important to know that when a system releases heat to the surroundings, the net value of heat is negative by convention, it's exothermic.

On the other hand, when a system does work then the work done is negative, that is, the system is exerting work.

Answer:

3

Explanation:

because half I think is the answer

Answer:

10 m

Explanation:

5  m/s   *   2 s = 10 meters     ( see how the  ' s '  cancels out?)

The net force on the box after the applied force is 50N.

A force in physics is an effect that has the power to alter an object's motion. A mass-containing object's velocity can vary, or accelerate, as a result of a force. Intuitively, a push or a pull can also be used to describe forces. As a vector quantity, a force has both magnitude and direction. Newton is the unit of measurement.

Additional units include dyne, pound-force, poundal, kip, and kilopond.

Deriving values from other quantities: F = ma (previously P = mf)

Force is an external agent that has the power to alter a body's resting or moving condition. It has a size and a movement. The direction of the force is referred to as the force's direction, and the application of force is the place at which the force is applied.

Original force of box = 0 N

Force applied by 2 student

Adding them because they are pushing it from the same side

50 N + 50 N

= 100N

Subtracting 50 N because the 3rd student is pushing the box from the opposite side

100N - 50N

= 50 N

The net force on the box after the applied force is 50N.

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The accelerations due to gravitational force on the moon and the Earth different due to difference in mass of its body and its radius. No, gravitational field cannot be shielded in a vacuum.

Acceleration due to gravity = Local gravitational field strength = g

g = G M / r²

G = Gravitational constant

M = Mass of the body

r = Radius of the body

G = 6.67 * [tex]10^{-11}[/tex] N m²

From the equation,

g ∝ M

g ∝ 1 / r²

Since the Earth is much bigger and heavier than moon, the acceleration due to gravity is much lesser in moon in comparison with Earth.

Therefore, the accelerations due to gravitational force on the moon and the Earth different due to difference in mass of its body and its radius. No, gravitational field cannot be shielded in a vacuum.

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Horizontal force required to slide a 150 N crate with uniform motion across a floor where the coefficient of kinetic friction is 0.20 is calculated to be 30 N .

A force that is applied in parallel to the horizon is known as horizontal force. The force exerted on a body has two components, that is the horizontal component and a vertical component.

Two types of horizontal force are :

Given , force = 150 N

Coefficient of kinetic friction, μ  = 0.20

Horizontal force, F = μmg

=0.20* 150

Horizontal force = 30 N

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The period of a wave traveling at a rate of 0.100 Hz is 10 seconds.

Period in physics is the time required for one complete cycle of vibration to pass a given point. The period is denoted by T and is measured by seconds (s).

The period of a wave and the frequency are inversely related to one another i.e. as the frequency of a wave increases, the period of the wave decreases.

The time it takes for one complete vibration is called the period (T). For example, if the period of a vibration is 0.1 second (it means one vibration takes 0.1 second), the frequency of the vibration is 10 vibrations per second or 10 hertz

The relationship between them can be given in an equation as follows:

T = 1/f

According to this question, a wave is traveling at a rate of 0.100 Hz. The period can be calculated as follows:

T = 1/0.100

T = 10s

Therefore, the period of a wave traveling at a rate of 0.100 Hz is 10 seconds.

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The work that was done on the system is 326 J.

The work done in moving the charge over the distance is calculated as follows;

W = Fr

W = (kq²)/r

where;

W = (9 x 10⁹) x (6 x 10⁻⁶)² / (30 x 10⁻³)

W = 360 J

The total work done on the system is calculated as follows;

Wt = Wc - We

where;

Wt = 360 J - 34 J

Wt = 326 J

Thus, we can conclude that the net work done on the system is obtained by subtracting the work done that went into thermal energy from the work done in moving the charge.

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Since the same monochromatic light passes through the interface between two other unknown materials. The option that can be said about these two materials and the light traveling through them is  option B and C:

Regarding the question Snell's law tells us that light at an interface bends toward a more dense or higher index of refraction.

The second material has a lower index of refraction than the first material because the light is bending away from the normal since it is farther from the normal. As a result, for the second question, the second and third boxes are checked.

The refracted ray bends away from the normal to the interface when a light ray enters a material with a lower index of refraction and a higher wave speed, and it will look closer to the interface than the incident ray.

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The same monochromatic light passes through the interface between two other unknown materials. This time the transmitted wave is observed to be farther from the normal to the interface than the incident wave. What can be said about these two materials and the light traveling through them?

A)The second material through which the light propagates has a higher index of refraction.

B)The second material through which the light propagates has a lower index of refraction.

C)As the light passes into the second material, its speed increases.

D)As the light passes into the second material, its speed decreases.

Answer:

Scalar quantities are physical quantities which have a magnitude and direction.

e.g. in 5 km, 5 is the magnitude(number) and km is the unit.

some scalar quantities are mass, length, distance, speed, power, energy, temperature etc.

Answer: Values with magnitude but without direction

Explanation:

Majorly there exists two types of quantities, Scalar and Vector.

Vectors: Quantities, with magnitude and direction.

Example: Force, Displacement

Scalars: Quantities, with magnitude but without direction.

Example: Weight, Length, Quantity

we do not need direction to define weight,

it is just 5 kilograms, and NOT 5 kilograms towards east.

The dot used to represent the Sun’s location in the picture is too large to represent the size of the Sun on the picture.

1 cm = 10000 light-years

1 mm = 1000 light-years

Dot = 0.5 to 1 mm

Diameter of the Sun = 1.5 * [tex]10^{-7}[/tex] light-years = 1.5 * [tex]10^{-10}[/tex] mm

On comparing, the Sun should not be visible to a human eye in that picture. Even using an Electron microscope, we cannot spot the Sun according to the given scale.

A light-year is a measurement of distance. It is the distance travelled by light in one year.

Light speed = 300000 km / s = 9.46 * [tex]10^{12}[/tex] km / yr

1 light year = 9.46 * [tex]10^{12}[/tex] km

Diameter of sun = 1.39 * [tex]10^{6}[/tex] km

Therefore, the dot used to represent the Sun’s location in the picture is too large to represent the size of the Sun on the picture.

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The work done by the force if the object moves from x = 0.15 m to x = 0.60 m is 0.24 J

The work done by a force is defined as the product of force and distance traveled.

Work done between 0.15 m to 0.25 m = 0.6 * (0.25 - 0.15)

Work done between 0.15 m to 0.25 m = 0.6 * (0.10)

Work done between 0.15 m to 0.25 m = 0.06 J

Work done between 0.25 m to 0.50 m = 0.4 * (0.50 - 0.25)

Work done between 0.25 m to 0.50 m = 0.4 * (0.25)

Work done between 0.25 m to 0.50 m = 0.1 J

Work done between 0.50 m to 0.60 m = 0.8 * (0.60 - 0.50)

Work done between 0.50 m to 0.60 m = 0.8 * (0.10)

Work done between 0.50 m to 0.60 m = 0.08 J

Total work done = 0.06 + 0.08 + 0.1

Total work done = 0.24 J

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When graphic scores first evolved, what were they often used in combination with (A) Traditional music notation .

A graphic score makes use of uses images, shapes and snap shots rather than notes. Composers use image scores because they allow them to explicit musical ideas that couldn't be described by way of traditional notation.

They advanced a new manner of visualizing song called image scores or picture notation. Photo rankings frequently appearance very specific to traditional musical rankings. In preference to strains and dots on a musical stave, photograph ratings can use all sorts of special pictures and logos to tell the performer what to play.

Graphic notation in its present day shape first appeared in the 1950s as an evolution of movement of Indeterminacy as pioneered by using John Cage.

Divide a large piece of paper into four sections and draw a motif in every. Ensure the motifs are as contrasted as possible. The score works with someone to factor on the sections. whilst they're touching a segment, a corresponding sound is played.

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Acceleration describes the speed and direction changes in velocity over time. Acceleration refers to the change in speed or direction of an item or point travelling straight forward. Due to the constant change in direction, motion on a circle accelerates even while the speed is constant.

The rate at which an object's velocity changes in relation to time is known as acceleration. The vector quantity of accelerations. The direction of the net force that is acting on an object determines its acceleration.

The formula a = v/t denotes acceleration (a), which is the product of the change in velocity (v) and the change in time (t). Using metres per second squared (m/s²), you can gauge how quickly velocity varies.

Acceleration due to gravity on earth = 9.8 m/s²

Therefore, the rate at which the ball will fall on the Katar is 9.8m/s²

Gravitational acceleration is the acceleration that an object experiences as a result of the gravitational field. It has the SI unit m/s². It is a vector quantity since it has both magnitude and direction. g is a unit used to measure gravitational acceleration. 9.8 m/s² is the standard value of g at sea level on the surface of the earth.

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The rider's apparent weight during the launch is 2940 N.

When the rider is rest, the forces acting on the skyward (y-direction) are mg towards earth and F_N opposite to mg. Total force will be,

F = F_N - mg

The mass of the rider is 60 kg. When riders are launched skyward with an acceleration of 4g, the force

F = ma = m*4g

F_N - mg = m*4g

F_N - 60*9.8 = 60*4*9.8

F_N - 588 = 2352

F_N = 2352 + 588 = 2940 N

The rider's apparent weight during the launch is 2940 N.

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Answer:

Each layer has a unique chemical composition, physical state, and can impact life on Earth's surface. Movement in the mantle caused by variations in heat from the core, cause the plates to shift, which can cause earthquakes and volcanic eruptions.