23. As the frequency of a wave increases, the period of the wave

Answer:

Yes,

Explanation:

.If the force has a component in the direction opposite to the displacement, the force does negative work.

0.769 joule is the amount of energy wasted by the motor

power=work done/time

power=10×5/65

power=0.769 joule

In physics, energy is the capacity to out work. It may take on several forms, including potential, kinetic, thermal, electrical, chemical, radioactive, etc. Heat and labor are two further examples of energy being transferred from one body to another. Once it has been transmitted in line with its nature, energy is always disseminated. Thus, although exertion can provide mechanical energy, heat transfer might produce thermal energy.

All types of energy have the characteristic of motion. For instance, a body has kinetic energy if it is moving. A tensioned item, such a spring or bow, may move even while at rest because of the device's design, which incorporates potential energy.

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Answer:

140 degrees cel

Explanation:

Cold objects are more dense due to the settleing of atoms, when taken advantage of, containers can hold more. but when heated, atoms vibrate alot. due to this they jitter around and take up more space.

The block with the highest density is Block C.

We can express the density of each block as follows:

The density of Block A = Mass of Block A / Volume of Block A

The density of Block B = Mass of Block B / Volume of Block B

The density of Block C = Mass of Block C / Volume of Block C

Given that Blocks A and B are tied, they have the same submerged volume (Vs) since they are made of the same material and have the same shape. Therefore, the block with the highest density will be the one with the highest total volume (V) and mass (m). This is Block C.

Thus, the order of the densities from highest to lowest is:

Block C > Block B (tied with Block A) > Block A

Note that we cannot compare the densities of Blocks A and B without additional information about their masses or volumes.

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Answer: 0.5334

Explanation:

i got it right on accellus :p

Volume of value V = 0.5333 \(m^{3}\)  is below the water line .

Archimedes' principle states that a body immersed in a fluid is subjected to an upwards force equal to the weight of the displaced fluid.

F(b) = rho*g*V

F(b) = buoyant force

rho = fluid density

g = acceleration due to gravity

V = fluid volume

given

density of raft = 373 kg/\(m^{3}\)

volume of raft = 1.43 \(m^{3}\)

since, density  = mass / volume

mass of raft = density * volume

                    = 373 * 1.43 = 533.3 kg

using Archimedes principal

Force = density of liquid * volume of liquid displaced * acceleration due to                gravity

  mg        = 1000 * V * 9.8

  533.3 * 9.8 = 1000 * V * 9.8

  V = 0.5333 \(m^{3}\)

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The forces between polar molecules is known as dipole-dipole forces.

Dipole-dipole forces are a form of intermolecular force that occurs between molecules that have permanent dipoles as a result of the unequal sharing of electrons. They are usually found in polar molecules that are covalently bonded.

A permanent dipole is a separation of electric charge that exists across two adjacent atoms or atoms. These dipoles exist when atoms in a covalent bond share electrons in an unequal manner, resulting in a partially positive end and a partially negative end. This partial charge imbalance causes the neighboring molecules to experience a force that causes them to line up in a specific orientation. This kind of attraction is known as dipole-dipole forces.

A polar molecule is a molecule with a net dipole moment greater than zero due to the asymmetrical arrangement of polar bonds, or due to the presence of lone pair electrons on the central atom. Polar molecules are molecules that have partial charges or regions with varying charge densities. The electrons in polar molecules are not evenly distributed throughout the molecule, resulting in a region of partial negative charge and a region of partial positive charge.

Intermolecular forces are the forces that hold two molecules together. The forces that occur between molecules are referred to as intermolecular forces. They are usually much weaker than chemical bonds, which hold atoms within a molecule together.

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We may use trigonometry to address this issue by dividing the forces into their horizontal and vertical components.

...... 'S,""" '

T horizontal equals Tension * cos(19°)

T vertical = 1437.61 N

Then, we may determine the tension force's vertical component:

T vertical equals Tension * Sin(19°)

T horizontal = 484.94 N

We can now calculate the horizontal component of the sail's force on the rider:

F horizontal is equal to F sail * cos(30°).

vertical = 25.98 N

Last but not least, we may determine the vertical component of the sail's force on the rider:

F vertical is F sail times sin(30°).

F horizontal = 14.99 N

The net horizontal force must be zero since the rider is not accelerating in the horizontal direction. In light of this, the horizontal component of the tension force and the horizontal component

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Answer:

9.81N

Explanation:

the force of attraction is given by

F=GmM/R²

where m is mass of the body

M is mass of the earth

R is radius of the earth

G is the universal gravitational constant(6.67x10-¹¹)

hence we substitute the values in the formula.

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The force of gravity between the object and the earth? (mass of the earth = 5.97 x 10 24kg, radius of the earth = 6.37 x 10 6m) is 9.8 N.

using Newton's law of universal gravitation,

F = G m₁m₂ / r²

where

F = force of gravity

G = 6.67 × 10⁻¹¹N.m² / kg²

m₁ = mass of the object = 1kg

m₂ = mass of the earth = 5.97  ×  10²⁴ kg

r = distance from the centre = 6.37  × 10⁶ m

Therefore,

F = 6.67 × 10⁻¹¹ × 1 × 5.97  ×  10²⁴ / 6.37  × 10⁶

F = 39.8199 × 10¹³ / (6.37  × 10⁶)²

F = 39.8199 × 10¹³ / 4.05  × 10¹³

F = 9.83207407407

F ≈ 9.8 N

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The calculate the total distance traveled by a particle on [0, Ï], we need to find the absolute value of the area under the velocity curve. This is because distance is the magnitude of displacement, which can be negative or positive depending on the direction of motion, but the area under the curve represents the total magnitude of the motion.

The start by finding the antiderivative of the velocity function v(t) = -sin (t - Ï/4) ∫v(t) dt = ∫-sin (t - Ï/4) dt = cos (t - Ï/4) + C
Next, we the antiderivative at the bounds of integration cos(Ï) - cos (0 - Ï/4) = cos(Ï) - cos(Ï/4) Finally, we take the absolute value of the difference between the two evaluated antiderivatives to get the total distance traveled:
|cos(Ï) - cos(Ï/4) | This is the answer to the question, expressed in 200 words. The total distance traveled by a particle on [0, Ï], given that the velocity is v(t) = -sin (t - Ï/4), is |cos(Ï) - cos(Ï/4) |. We find the total distance traveled by taking the absolute value of the difference between the antiderivative of the velocity function evaluated at the bounds of integration. This approach works because distance is the magnitude of displacement, which can be negative or positive, but the area under the curve represents the total magnitude of the motion.

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Answer:

Hi there!

Using Hooke's Law:

F = kx

F = Force (N)

k = Spring constant (N/m)

x = displacement (m)

Begin by converting cm to m:

280 cm = 2.8 m

Now, plug in the givens:

25 = 2.8k

k = 8.93 N/m

Answer:

The answer is b

Explanation:

Answer:

kiligrams

Explanation:

Answer:

I believe the answer is 16.404.

Explanation:

I used a calculator.

the speed of flywheel is 300 rpm just before a punching operation,then the speed of the flywheel immediately after the punching operation is 299.93 rpm.

The answer of the above question is as follows:

mass of the flywheel of the punching machine (m) is 300 kg .

radius of gyration of the flywheel is :

\(k = 600 mm \times \frac{1m}{100mm} = 6m\)

work to be done against each punching by the wheel (W) is 2500J.

initial angular velocity of the flywheel is:

\(w = 300rpm \times \frac{ \frac{\pi}{30} \frac{rad}{s} }{1rpm} = 10 \frac{\pi \: rad}{s} \)

therefore the angular speed of the flywheel immediately after punching is given by

w1 =299.93 rpm

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Disclaimer : the given question is incomplete, thus the complete question is as follows:

Question: The flywheel of a punching machine has a mass of 300 kg mass and a radius of gyration of 600 mm. each punching operation requires 2500 J of work.

(a) knowing that the speed of the flywheel is 300 rpm just before a punching,determine the speed immediately after the punching.

A disk of mass m on a frictionless table is attached to a hanging cylinder of mass M by a cord through a hole in the table.

Determine the speed at which the disk must move in a circle of radius r in order for the cylinder to remain at rest.

A frictionless horizontal table with a mass'm' attached to a string passing through a small hole in the surface. Initially, the mass moves with a speed of v 0 in a circle of radius r 0, and the free end of the string is held by a person.

Work done by centripetal force in half or quarter revolutions of a particle of mass m in a circular path of radius is also zero at any speed. As a result, the work done in the case of the moon rotating around the Earth is also zero.

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Answer:

A, 0.050 Hz

Explanation:

1) Frequency = speed divided by wavelength

time is 2* 60 = 120 seconds

distance = 6 wave lengths

speed = distance divided by time

speed = 6 wave lengths divided by 120

Hope this helps!

The maximum possible yield strength in MPa for a single crystal of the metal that is pulled in tension is 35.355 MPa.  The maximum possible yield strength in MPa for a single crystal of the metal that is pulled in tension can be determined by : Maximum possible yield strength = critical resolved shear stress x √2.

The maximum possible yield strength of a single crystal of the metal that is pulled in tension can be calculated using the formula. Maximum possible yield strength = critical resolved shear stress x √2Where, Critical resolved shear stress = 25 MPa.

Substituting the given value of the critical resolved shear stress in the above equation we get: Maximum possible yield strength = 25 x √2= 25 x 1.414= 35.355 MPa.

Therefore, the maximum possible yield strength in MPa for a single crystal of the metal that is pulled in tension is 35.355 MPa.

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The maximum possible yield strength (in MPa) for a single crystal of this metal that is pulled in tension is 14.4 MPa.

The critical resolved shear stress for a metal is 25 MPa. We need to determine the maximum possible yield strength (in MPa) for a single crystal of this metal that is pulled in tension.

In order to determine the maximum possible yield strength (in MPa) for a single crystal of this metal that is pulled in tension, we use the formula:

\($$Maximum possible yield strength = Critical resolved shear stress \times \sqrt{\frac{2}{3}}\\Maximum possible yield strength = 25 MPa \times \sqrt{\frac{2}{3}} = 14.4 MPa\)

Therefore, the maximum possible yield strength (in MPa) for a single crystal of this metal that is pulled in tension is 14.4 MPa.

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The Earth, Sun, and Moon systems create several patterns, including the day and night cycle, seasons, lunar phases, tides, and solar and lunar eclipses. These patterns have been studied and understood by scientists for centuries and have played an important role in shaping our understanding of the universe and our place in it. Understanding these patterns is essential in comprehending the workings of the universe and the impact they have on our planet.

The Earth, Sun, and Moon systems create several patterns, including:

Day and Night cycle: The rotation of the Earth on its axis causes the alternating cycle of day and night as different parts of the planet face towards or away from the Sun.

Seasons: The tilt of the Earth's axis (23.5 degrees) causes the seasons to change as different parts of the planet receive varying amounts of sunlight throughout the year.

Lunar Phases: The Moon orbits the Earth, causing it to appear to change shape in the sky as different amounts of sunlight reflect off its surface.

Tides: The gravitational pull of the Moon and the Sun on the Earth's oceans creates a regular cycle of high and low tides.

Solar and Lunar Eclipses: The alignment of the Earth, Sun, and Moon can cause a shadow to be cast on one celestial body by another, resulting in either a solar or lunar eclipse.

These patterns have been studied and understood by scientists for centuries and have played an important role in shaping our understanding of the universe and our place in it.

Therefore, The day and night cycle, seasons, lunar phases, tides, and solar and lunar eclipses are just a few of the patterns that the Earth, Sun, and Moon systems produce. Scientists have been analyzing and studying these patterns for centuries, and they have had a significant impact on how we view the cosmos and our place in it. Knowing these patterns is crucial to understanding how the cosmos functions and how they affect our world.

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Answer:  win it no bouncing

Explanation:

Answer:

Rotational inertia depends both on an object's mass and how the mass is distributed relative to the axis of rotation. ... We can't just consider the mass to be concentrated at its center of mass. When a mass moves further from the axis of rotation it becomes more difficult to change the rotational velocity of the system.So the ball with 10 pounds of the ball can have more probability to do an absolute pure rotation along rolling translation.And also the specific material from which it is made up of. As If the body is rigid have the points dont move from their position when a magnitude of force applied then the body woukd perform a well rotation than a resistantant body.

Hope it helps

The odd feature about Mathilde is that it had a different shape. It has all the features like Ida, Eros, and Gaspra. Thus, option D is correct.

Mathilde is a type of metal body present in the asteroid belt having an irregular shape. It is different from other asteroids because of its highly elongated and heavily cratered structure in space. It is estimated that the diameter of the Mathilde is around 50 kilometers.

Mathilde does not have any defined shape and the color is also very distinct. Due to its high carbon nature, it looks like dark black color. This type of asteroid is more prone to collisions.

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The distance covered by the ball is 60.75 m.

The time taken for the object to reach the maximum height is known as the time of motion of the object and it is calculated as follows.

H = 27t - 3t²

The final velocity of the ball at the maximum height is calculated as;

v = dH/dt

v = 27 - 6t

at maximum height, the final velocity = 0

0 = 27 - 6t

6t = 27

t = 27 / 6

t = 4.5 s

The distance covered by the ball is calculated as follows;

H =  27t - 3t²

H = 27(4.5)  -  3 (4.5²)

H = 60.75 m

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The speed of a sound wave will increase if the temperature of the medium rises. (A)

Temperature affects the density of the medium through which a sound wave travels, which modifies the speed of sound. Put simply, the speed of sound in a given medium will increase as its temperature increases. Since temperature affects the speed of sound, the wavelength also varies. The wave's frequency doesn't change when it moves from one place to another. Since the speed of sound is proportional to the product of the wavelength and the frequency, a change in temperature will cause a shift in the wavelength of sound waves even if the frequency stays the same.

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The Adolescent egocentrism refers to the potential belief that adolescents often hold, which is characterized by a heightened sense of self-importance, self-focus, and an exaggerated sense of uniqueness. themselves and others, they can begin to see beyond their own narrow viewpoint and appreciate the wider world around them.

This belief system can lead to several key features Personal fable: Adolescents may believe that they are special and unique, experiencing things that no one else has experienced before. This can lead to a sense of invincibility, causing them to take risks and make decisions without considering the potential consequences. Imaginary audience: Adolescents often feel as if they are constantly being watched, evaluated, and judged by others. This can result in increased self-consciousness and a tendency to modify their behavior based on perceived social expectations. To help adolescents overcome egocentrism, it is essential to encourage open communication, promote empathy and perspective-taking, and provide opportunities for self-reflection and personal growth. By supporting adolescents in developing a more balanced understanding of themselves and others, they can begin to see beyond their own narrow viewpoint and appreciate the wider world around them.

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Answer: the answer is d

Explanation:

I got it right

The gardener does a work of 5,008.5 J

The work done is 120 J
The force exerted is 405 N

Work is defined as the product of the force applied to an object and the distance it moves in the direction of that force. In other words, work is done when a force causes an object to move in the same direction as the force. The formula for work is W = F x d,

Given that;

W = Fd

F = force

d = distance

W = work done

Thus;

W = 94.5 N * 53 m

= 5,008.5 J

2) W = Fd

W = 30 N * 4 m

=  120 J

3) MA = 1620/x

x = 1620/4

x =  405 N

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The number of circular pieces of filter paper used in Experiment 2 was 15.

The third option is correct.

Filter paper is described as a semi-permeable paper barrier placed perpendicular to a liquid or air flow which is used to separate fine solid particles from liquids or gases.

The various properties of filter paper includes:

The number of circular pieces of filter paper used in Experiment 2 taking note of the number of trials is 15.

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a) The rotational velocity after 5 seconds is 10 rad/s.

b) The rotational velocity after 7.8 seconds is 15.6 rad/s.

The rate of velocity at which an object or particle rotates about a center or a specified location in a certain time period is defined as rotational velocity.

a) To find the rotational velocity after 5 seconds, we can use the formula:

ω = ω₀+ α t

where ω is the final rotational velocity, ω₀ is the initial rotational velocity (0 rad/s, since the object starts from rest), α is the constant rotational acceleration (2.0 rad/s²), and t is the time elapsed (5 s).

Plugging in the values, we get:

ω = 0 rad/s + 2.0 rad/s² × 5 s = 10 rad/s

So, the rotational velocity after 5 seconds is 10 rad/s.

b) To find the rotational velocity after 7.8 seconds, we can use the same formula:

ω = 0 rad/s + 2.0 rad/s² × 7.8 s = 15.6 rad/s

So, the rotational velocity after 7.8 seconds is 15.6 rad/s.

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