calculate the change in the molar gibbs energy of a perfect gas when its pressure is increased isothermally from 1.0 atm to 100.0 atm at 298 k.

Answer: KE = 25 J

Explanation: You must use the formula

KE = 1/2 m v²

to solve this problem.

KE = 1/2 (10 Kg) (5 m/s)

KE = 1/2 (50 kgm/s)

KE = 25 J

One of the experiments that did not confirm Einstein's general theory of relativity was the Michelson-Morley experiment. The experiment aimed to detect the motion of Earth through a hypothetical medium called the luminiferous ether, which was believed to be responsible for carrying light waves.

The experiment, however, failed to detect any motion of the ether, suggesting that it did not exist. Einstein's theory of relativity later explained the results of the Michelson-Morley experiment by suggesting that the speed of light is constant and does not depend on the motion of the observer or the source of light. This principle, known as the constancy of the speed of light, is one of the cornerstones of Einstein's theory of relativity. Other experiments that confirmed Einstein's general theory of relativity include the deflection of light by the Sun's gravity during a solar eclipse, the precession of the orbit of Mercury, and the gravitational redshift of light. These experiments provided strong evidence for Einstein's theory and helped to establish it as one of the most successful scientific theories of all time.  

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Note- questions seems incomplete. complete question is not available in the search engine.

a) The lifting power of an electromagnet is proportional to the current and the number of revolutions.

To calculate the current necessary to create a lifting force of 300 N, use the proportion:

(current) / (2000 turns) = (300 N) / (100 N)

When you solve for current, you get:

current = (2000 turns) * (300 N) / (100 N) = 6 A

b) The percentage may be used to calculate the number of spins necessary to create a lifting force of 600 N:

(2000 turns) * (2.5 A) = (number of turns) * (2.5 A)

If you solve for the number of turns, you get:

2000 turns = (2000 turns) * (2.5 A) / (2.5 A).

The current is already 2.5 A, and no matter how many revolutions it has, it cannot raise any more than 100N. To lift 600N, you have to increase the current.

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Answer:

W = 15,000 Joule

Explanation:

Mechanical Work

Mechanical work is the amount of energy transferred by a force. It's a scalar quantity, with SI units of joules.

If both the force and displacement are parallel, then we can use the scalar formula:

W=F.s

Where

F =Magnitude of the force

s = magnitude of the displacement

The tornado moved a trailer with a force of F=600 N for a distance of s=25 m. The work done was:

W = 600 N * 25 m

W = 15,000 Joule

Answer:

100°C

Explanation:

The heat gained by the ice equals the heat lost by the steam, so the total heat transfer equals 0.

Heat lost by the steam as it cools to 100°C:

q = mCΔT

q = (3 kg) (2.00 kJ/kg/K) (100°C − 120°C)

q = -120 kJ

Total heat so far is negative.

Heat lost by the steam as it condenses:

q = -mL

q = -(3 kg) (2256 kJ/kg)

q = -6768 kJ

Heat absorbed by the ice as it warms to 0°C:

q = mCΔT

q = (6 kg) (2.11 kJ/kg/K) (0°C − (-40°C))

q = 506.4 kJ

Heat absorbed by the ice as it melts:

q = mL

q = (6 kg) (335 kJ/kg)

q = 2010 kJ

Heat absorbed by the water as it warms to 100°C:

q = mCΔT

q = (6 kg) (4.18 kJ/kg/K) (100°C − 0°C)

q = 2508 kJ

The total heat absorbed by the ice by heating it to 100°C is 5024.4 kJ.

If the steam is fully condensed, it loses a total of -6888 kJ.

Therefore, the steam does not fully condense.  The equilibrium temperature is therefore 100°C

A rocket accelerates by burning its onboard fuel, so its mass decreases with time. Suppose the initial mass of the rocket at liftoff (including its fuel) is m, the fuel is consumed at rate r, and the exhaust gases are ejected with constant velocity ve (relative to the rocket). A model for the velocity of the rocket at time t is given by the equation.

The equation for the velocity of a rocket at time t, given its initial mass m, fuel consumption rate r, and exhaust velocity ve, is a complex topic in rocket science and usually derived based on Newton's laws of motion and conservation of momentum.

Newton's laws of motion and conservation of momentum

Under Newton's laws of motion and the conservation of momentum, the velocity of a rocket at time t can be modeled as follows:

v(t) = ve * ln(m / (m - r*t))

where:

ve is the exhaust velocity,

m is the initial mass of the rocket (including fuel),

r is the fuel consumption rate, and

t is the time elapsed.

This equation is known as the rocket equation, and it represents the change in velocity of the rocket as a result of the continuous expulsion of exhaust gases. The final velocity of the rocket will depend on the initial mass, fuel consumption rate, and exhaust velocity, among other factors.

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Answer:

The answer is b

Explanation:

Answer:

If you haven’t read about the shark found swimming in and out of a segment of an undersea volcano, then you really need to get up to date.

Explanation:

The acceleration of the center of mass of the system is also zero.

When two isolated objects collide head-on, the total momentum of the system is conserved. The momentum of an object is equal to its mass multiplied by its velocity. Since one object has twice the mass of the other, it will have half the velocity of the smaller object before the collision.

After the collision, both objects will move together as one system. The acceleration of the center of mass of the system can be found using the equation F=ma, where F is the net force acting on the system and m is the total mass of the system.

Since momentum is conserved, the net force on the system is zero. This means that the center of mass of the system will not move after the collision, and

the system will continue to move in the same direction as the smaller object with a velocity that is equal to the initial velocity of the smaller object divided by the total mass of the system.

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Answer:

the  kinetic energy the bat can give to a ball is 2,025 J.

Explanation:

Given;

mass of the bat, m = 2kg

velocity of the bat, v = 45 m/s

The kinetic energy the bat can give to a ball is calculated as;

\(K.E = \frac{1}{2} mv^2\\\\K.E = \frac{1}{2} \times \ 2 \ \times \ 45^2\\\\K.E = 2,025 \ J\)

Therefore, the  kinetic energy the bat can give to a ball is 2,025 J.

Answer:

\(\boxed {\tt 3.4 \ mi/hr}\)

Explanation:

To find speed, divide the distance by the time, or use the following formula.

\(s=\frac{d}{t}\)

The distance is 1.7 miles.

The time is 0.5 hours.

\(d= 1.7 \ mi \\t= 0.5 \ hr\)

Substitute the values into the formula.

\(s=\frac{1.7 \ mi}{0.5 \ hr}\)

Divide.

\(s= 3.4 \ mi/hr\)

The speed of the horse is 3.4 miles per hour.

The value of capacitor C2 in the given parallel circuit arrangement of the capacitors is 25 F.

The capacitance of the circuit is calculated as follows.

Assuming a parallel circuit arrangement for the capacitors;

C(total) = C1 + C2

58 F = 33 F + C2

C2 = 58 F - 33 F

C2 = 25 F

Thus, the value of capacitor C2 in the given parallel circuit arrangement of the capacitors is 25 F.

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Answer:

Explanation:

KE =1/2mv²

KE =1/2(1000kg)(15m/s)²

KE = 500kg (225 m²/s²)

KE = 112,500 JJ

Answer:

109,22

Explanation:

hshdhrhrhjfrsjdj

Answer:

The correct answer is 109.22

Explanation:

Multiply the inches, 43, by the number of centimeters per inch, 2.54, and you will get your answer.

The formula for energy consumed to calculate the energy consumed by the motor in 23 seconds:

To calculate the energy consumed by the motor in operating the centrifuge for 23 seconds, we need to use the formula:

Energy Consumed = Power x Time

Since we are assuming that there is no loss of energy, the power consumed by the motor will be equal to the kinetic energy of the rotating parts of the centrifuge. We can calculate this using the formula:

Kinetic Energy = (1/2) x Moment of Inertia x Angular Velocity^2

We don't have information about the moment of inertia or the angular velocity, but we do have the data from a single measurement, which gives us the frequency of rotation. We can use this frequency to calculate the angular velocity:

Angular Velocity = 2π x Frequency

Substituting this value in the kinetic energy formula, we get:

Kinetic Energy = (1/2) x Moment of Inertia x (2π x Frequency)^2

So, to find the energy consumed by the motor for 23 seconds while operating the centrifuge without any sample, follow these steps and use the provided formula.

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that's happening ?????

The magnitude and direction of the electric field at a distance of 1.50 m from a 50.0-NC charge is option(d) i.e,200 N/C away from the charge.

An electric field is a physical field that surrounds electrically charged particles and acts as an attractor or repellent to all other charged particles in the vicinity. It can also refer to a system of charged particles' physical field.

Equation E = kQ/\(r^{2}\) determines the size of the electric field (E) created by a point charge with a charge of magnitude Q at a position that is r distant from the point charge. k is a constant with a value of 8.99 x \(10^{9}\) N \(m^{2}\)\(C^{2}\).

E = kQ/\(r^{2}\)

E = 8.99 x\(10^{9}\) × 50 × \(10^{-9}\)/\(1.50^{2}\)

E = 199.8N/C  = 200N/C

As the charge is positive the direction of the electric field will be away from the charge. Therefore, the correct answer is option(d)i.e,200 N/C away from the charge.

The complete question is:

What are the magnitude and direction of the electric field at a distance of 1.50 m from a 50.0-NC charge?

A) 20 N/C away from the charge

B) 20 N/C toward from the charge

C) 10 N/C away from the charge

D) 200 N/C away from the charge

E) 200 N/C toward from the charge

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a sealed vessel contains 50% oxygen, 10% carbon dioxide, and 40% nitrogen gas. the total pressure of the mixture is 5 atmospheres. The partial pressure of carbon dioxide in the sealed vessel is 0.5 atmospheres.

To determine the partial pressure of carbon dioxide in a sealed vessel containing 50% oxygen, 10% carbon dioxide, and 40% nitrogen gas with a total pressure of 5 atmospheres, follow these steps:

1. Find the percentage of carbon dioxide in the mixture: 10%
2. Multiply the total pressure by the percentage of carbon dioxide to find the partial pressure.

Partial pressure of CO2 = Total pressure × Percentage of CO2
The partial pressure of CO2 = 5 atmospheres × 0.1 (10% as a decimal)

Your answer: The partial pressure of carbon dioxide in the sealed vessel is 0.5 atmospheres.

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The minimum index of refraction of the prism is 1.414.

What does light ray is incident mean?

Light ray incident is a term used to describe when a light ray strikes a surface. This can refer to light from any source, such as the sun, a light bulb, or a laser. When light rays are incident on a surface, they may be reflected, absorbed, or transmitted. The behavior of the light depends on the properties of the surface, such as its color, texture, and composition.

This double internal reflection requires that the angle of incidence (45º) at the 1st prism side is at least = critical angle. This reflected ray then meets the other prism side at the same angle of incidence (45º). so we only need to consider the first internal reflection.

Applying [ n sin i = constant ] to the prism-air boundary.

(np= ref.index for prism material, nₒ = ref.index for air =1.0 )

At a critical angle of incidence 45º, external angle = 90º

np sin 45 = nₒ sin90

np = nₒ sin90 / sin45=1 x 1 / 0.7071

np(min) = 1.414

Therefore, 1.414 is the minimum index of refraction of the prism.

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The minimum index of refraction of the prism for which the ray will totally internally reflect at each of the two sides making the right angle is 1.414.

What does light ray is incident mean?

Light ray incident is a term used to describe when a light ray strikes a surface. This can refer to light from any source, such as the sun, a light bulb, or a laser. When light rays are incident on a surface, they may be reflected, absorbed, or transmitted. The behavior of the light depends on the properties of the surface, such as its color, texture, and composition.

This double internal reflection requires that the angle of incidence (45º) at the 1st prism side is at least = critical angle. This reflected ray then meets the other prism side at the same angle of incidence (45º). so we only need to consider the first internal reflection.

Applying [ n sin i = constant ] to the prism-air boundary.

(np= ref.index for prism material, nₒ = ref.index for air =1.0 )

At a critical angle of incidence 45º, external angle = 90º

np sin 45 = nₒ sin90

np = nₒ sin90 / sin45=1 x 1 / 0.7071

np(min) = 1.414

Therefore, 1.414 is the minimum index of refraction of the prism.

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The weight of the log is 980N

The force of gravity acting on an object is its weight, which is equal to its mass times the acceleration of gravity, or w = mg. The newton is the SI unit for weight since it is a force.

The weight of a 100 kg log can be calculated using the equation w = mg,

where m is the mass of the log (100 kg) and g is the acceleration due to gravity (9.8 m/s^2).

So, w = (100 kg)(9.8 m/s^2) = 980 N.

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Lightning is an electrostatic discharge which occurs naturally within the storm. The electrostatic discharge is due to electrically charged regions in the storm.

Lightning can be defined as the naturally occurring electrostatic discharge during which two electrically charged regions positive and negative, both in the same atmosphere or with one on the ground, and other at a certain distance which temporarily neutralize each other, causing the instantaneous release of an average of about one gigajoule of energy from the effect.

The electric field within the storm is not the only field which develops. Below the negatively charged storm base in this region, positive charge begins to pool within the surface of the earth. This positive charge will then shadow the storm whichever direction it goes, and is responsible for the cloud-to-ground lightning.

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A projectile is an object that is launched into the air and moves under the influence of gravity alone. The velocity of a projectile can be broken down into two components: the vertical component and the horizontal component. The vertical component of the velocity is the speed at which the object moves up or down, while the horizontal component is the speed at which it moves side to side.

The following are the methods to obtain the vertical and horizontal components of a projectile's velocity:

   If the initial velocity and the launch angle of the projectile are known, we can use trigonometry to calculate the vertical and horizontal components of velocity.

The horizontal component of the velocity is given by:

Vx = V * cosθ

where Vx is the horizontal velocity, V is the initial velocity of the projectile, and θ is the angle of launch.

The vertical component of the velocity is given by:

Vy = V * sinθ

where Vy is the vertical velocity.

   If the time of flight and the maximum height of the projectile are known, we can use kinematic equations to calculate the vertical and horizontal components of velocity.

The time of flight of a projectile is the time it takes to reach its maximum height and then fall back down to its original height. The maximum height reached by the projectile is the highest point in its trajectory.

The vertical component of the velocity can be calculated using the formula:

Vy = (2gh)^0.5

where Vy is the vertical velocity, g is the acceleration due to gravity, and h is the maximum height of the projectile.

The horizontal component of the velocity can be calculated using the formula:

Vx = d / t

where Vx is the horizontal velocity, d is the horizontal distance traveled by the projectile, and t is the time of flight.

In summary, the vertical and horizontal components of a projectile's velocity can be obtained using trigonometry if the initial velocity and launch angle are known or by using kinematic equations if the time of flight and maximum height are known.

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Answer:

1.i)heat

ii.)heat

2.a.)b,c,d,a

b.)a.chlorination

Answer:

B

Explanation:

B

The velocity of the child is 3.36 m/s. Then, the distance it covered is 14 meters. The radius from the centre is then, 2.24 m.

Centripetal acceleration is the acceleration of a body moving through a circular paths. It is the rate of change of its angular velocity.

The acceleration of the child = 0.80 ms/²

time  = 4.2 s

velocity = time interval × acceleration

             = 4.2 s ×  0.80 ms/²= 3.36 m/s.

Then the distance covered  = velocity × time

= 3.36 m/s × 4.2 = 14.22 m.

This is the circumference of the circular path which is equal to 2πR.

The distance from the centre = radius of the path.

2πR = 14.22 m

R = 2.24 m

Therefore, the child will be 2.24 m far from the center of the ride.

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The tension is in each rope will be 230.535 N .

Tension also known as tensile force is the force developed in a rope, string, or cable when it is stretched by an applied force.

Mass of the gymnast = m = 47 kg

Acceleration due to gravity = g = 9.81 \(m/s^{2}\)

T = m*g

T = 47 * 9.81

T = 461.07 N

Since there are two parallel ropes attached to the ceiling, therefore tension will be equally divided into each rope respectively.

Tension in each rope = t

t = \(\frac{T}{2}\)

t = \(\frac{461.07}{2}\)

t = 230.535 N

The tension in each rope will be 230.535 N, when both the ropes are attached to the ceiling directly above the gymnast.

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Answer:

Explanation:

a helmet is used for our safety this  piece of equipment is used to protect us from getting any injury's on our heads such as concussions getting a cut on your head etc.

A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil up and down. Energy will begin to be transported through the slinky from left to right. As the energy is transported from left to right, the individual coils of the medium will be displaced upwards and downwards. In this case, the particles of the medium move perpendicular to the direction that the pulse moves. This type of wave is a transverse wave. Transverse waves are always characterized by particle motion being perpendicular to wave motion.

A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil left and right. Energy will begin to be transported through the slinky from left to right. As the energy is transported from left to right, the individual coils of the medium will be displaced leftwards and rightwards. In this case, the particles of the medium move parallel to the direction that the pulse moves. This type of wave is a longitudinal wave. Longitudinal waves are always characterized by particle motion being parallel to wave motion.

Answer:

I believe  that the crab would have 14 arms if the octopus had 12 arms

Explanation: