A reversible steady device puts out Wout = 750 J of me- chanical energy. The only input energy is the quantity Qin transferred thermally from a thermal reservoir at 355 K. If the temperature of the environment (which serves as low- temperature reservoir) is 300 K, what quantity of energy Qout is transferred thermally out of the device? ..

Answer:

R// Por lo tanto, la aceleración que produce una fuerza de 35 N a un carrito con víveres que tiene una masa de 2800 g es de 12,5m/s².

Answer:

I don't know i really I'm sorry I wish I could help

Suppose that Joe and Jim are twins and :

________________________________

Joe :

Height = 1000 m

==》 PE = 150 × 1000

Weight = 150 N

==》 PE = 150,000 j

_________________________________

Jim :

Height = 1500 m

==》PE = 100 × 1500

Weight = 100 N

==》PE = 150,000 j

______________________________

As u can see Joe and Jim has equal PE before they begin skiing .

The voltage is stepped up before being transmitted from a power station through overhead power lines to the consumer in order to reduce power loss and make the overhead power lines lighter, less expensive to build.

Here is the explanation why voltage is stepped up before being transmitted from a power station through overhead power lines to the consumer:

Power loss is inversely proportional to the square of the current. This means that if we can reduce the current, we can also reduce the power loss.

The current is inversely proportional to the voltage. This means that if we increase the voltage, we can reduce the current.

Therefore, by increasing the voltage, we can reduce the power loss.

In addition, the higher the voltage, the smaller the cross-sectional area of the conductors needed to transmit the same amount of power. This makes the overhead power lines lighter and less expensive to build.

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Answer i would use a magnent first to take out the iron then boil the salt and sand mixture until the salt dissolves and its just sand left

Explanation:

The plane's speed is 450 miles per hour, and the wind speed is 50 miles per hour. This is determined by solving the equations derived from the distances and times of the flight with and against the wind.

Let's assume the speed of the plane (without considering the wind) is P, and the speed of the wind is W.

When flying into a headwind, the effective speed of the plane is reduced by the wind speed. So the equation for the outbound flight is:

P - W = 2000 miles / 5 hours

P - W = 400 miles per hour (mph)  ---(Equation 1)

When flying with a tailwind, the effective speed of the plane is increased by the wind speed. So the equation for the return flight is:

P + W = 2000 miles / 4 hours

P + W = 500 miles per hour (mph)  ---(Equation 2)

Now we have a system of two equations (Equation 1 and Equation 2) with two variables (P and W). We can solve this system to find the values of P and W.

Adding Equation 1 and Equation 2 together, we eliminate the variable W:

(P - W) + (P + W) = 400 mph + 500 mph

2P = 900 mph

P = 450 mph

Substituting the value of P back into Equation 1 or Equation 2, we can solve for W:

450 mph - W = 400 mph

W = 450 mph - 400 mph

W = 50 mph

Therefore, the plane's speed is 450 mph and the wind speed is 50 mph.

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When electrons are lost a positive ion is formed. When electrons are gained, a negative ion is formed. I hope this helps

The speed of the penny after 2.5 seconds is 24.5 m/s.

What is speed?

Speed is a scalar quantity that refers to "how fast an object is moving." It is the rate at which an object changes its position, and it is measured in units of distance per unit of time (such as meters per second or miles per hour). Speed is related to the distance traveled by an object and the time it takes to travel that distance, and it can be calculated by dividing the distance traveled by the time it took to travel that distance.

The speed of an object in free fall can be calculated using the equation:

v = g * t

where v is the velocity, g is the acceleration due to gravity (approximately 9.8 m/s^2 on the Earth's surface) and t is the time elapsed.

In this scenario, the penny is dropped off the top of the Statue of Liberty, which is 93 m tall, and we want to find the speed of the penny after 2.5 seconds.

So, we can substitute the values in the equation:

v = 9.8 m/s^2 * 2.5 s = 24.5 m/s

Therefore, the speed of the penny after 2.5 seconds is 24.5 m/s (assuming no air resistance).

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Capacitors store energy in a magnetic field, concentrated in the dielectric, the given statement is false because capacitors store energy in an electric field, not a magnetic field, which is concentrated in the dielectric.

A capacitor consists of two metal plates, with a gap between them, and a dielectric material between them. When a potential difference is applied across the plates, an electric field is created in the dielectric, causing charges to accumulate on the plates. The amount of charge that can be stored on the plates is proportional to the voltage and the capacitance of the capacitor.

The capacitance is determined by the size and spacing of the plates, as well as the properties of the dielectric. Capacitors are used in a variety of applications, including power supplies, filters, and timing circuits. They can also be used for energy storage in electronic devices, such as cameras and flashlights. In summary, the given statement is false because capacitors store energy in an electric field, which is concentrated in the dielectric.

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A good leaving group favors SN1 reactions.

A good leaving group is defined as a species that is readily displaced from a substrate by a nucleophile. A good leaving group should have a low bond dissociation energy and be a stable species. In SN1 reactions, the rate-determining step involves the formation of a carbocation intermediate, which is why a good leaving group is favored in these reactions. The carbocation intermediate is stabilized by a good leaving group, which makes the reaction more favorable and increases the reaction rate.

In contrast, SN2 reactions are characterized by a direct attack of the nucleophile on the substrate without an intermediate step, and the rate of the reaction is determined by the concentration of both the substrate and the nucleophile. A good leaving group is less important in SN2 reactions since the reaction does not involve an intermediate species.

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Answer:

Explanation:

The work done by an object can be found by using the formula

From the question

force = 1,000 N

distance = 20 m

We have

workdone = 1000 × 20

We have the final answer as

Hope this helps you

The energy density (energy per unit volume) at a given location in space can be calculated by multiplying it by the energy's velocity. The units of power are split by the resulting vector's area.

What is an illustration of intensity?

The degree, volume, or magnitude of something is its intensity. Examples include fire, emotion, weather, work, or passion. The word "intensity" is occasionally linked to fervor, fire, and violence. It is employed when describing the intensity of something like a flame or possibly a love affair.

What is the level of scientific rigor?

The intensity of a wave is the amount of energy it transports over a surface in a unit of time and area. It is also equal to the energy density times the wave speed. Watts per square meter are typically used to measure it. A wave's strength and amplitude will affect intensity.

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Answer:

10000000000000000000000000000000000

Explanation:

The force applied to the brake pad is 160 Newtons.

To calculate the force applied to the brake pad, we need to multiply the pressure by the area.

Given:

Pressure = 500 N/m²

Area = 0.4 m * 0.8 m = 0.32 m²

The formula to calculate force is:

Force = Pressure * Area

Substituting the given values:

Force = 500 N/m² * 0.32 m²

Force = 160 N

Therefore, the force applied to the brake pad is 160 Newtons.

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Answer:

It's a kinematic equation.

Explanation:

x displacement = (velocity_final * time) - (0.5 * acceleration * time * time)

You should be given a value, context(word problem), or diagram.

If you're deriving for a term just isolate the term.

If you're asking why the -(0.5 * acceleration * time * time) is negative instead of positive, would need context.

Tension and compression forces act on diagonal and vertical members respectively in a truss structure.

A truss is a construction that comprises of a progression of interconnected triangles, intended to disperse stacks and give security. The powers that follow up on a bracket can be characterized into two kinds: pressure and pressure powers.

Tension powers are powers that draw on a part, like a rope or link. In a support, strain powers follow up on the corner to corner individuals that structure the triangles. These individuals are under pressure since they are being pulled separated.

Compression forces are forces that push on a part, like a segment or shaft. In a support, pressure powers follow up on the upward individuals that associate the top and base harmonies of the bracket. These individuals are under pressure since they are being crushed together.

Notwithstanding pressure and pressure powers, brackets can likewise be exposed to twisting minutes and shear powers, which are brought about by outer burdens following up on the support.

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The kinetic energy of a object is 2200 Joules.

Given data :

The kinetic energy of a point body is defined as the product of

(1/2) * (m) * (\(V^{2}\)).

Therefore, to find the kinetic energy of a body of mass m = 44Kg and velocity V = 10m / s

the operation must be done :

(1/2) * (44) * (\(10^{2}\)) = 2200

which results in 2,200 Joules.

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Answer:

P.E = 4.398 Joules.

Explanation:

Given the following data;

Spring constant, k = 71.8N/m

Displacement, x = 0.35m

To find the elastic potential energy;

The elastic potential energy of an object is given by the formula;

\( P.E = \frac {1}{2}kx^{2}\)

Substituting into the equation, we have;

\( P.E = \frac {1}{2}*71.8 *(0.35)^{2}\)

\( P.E = 35.9 * 0.1225 \)

Elastic potential energy = 4.398 Joules.

Therefore, the elastic potential energy of the spring is 4.398 Joules.

Primates rely primarily on vision to negotiate their environment.

As highly adaptable mammals, primates possess a keen sense of sight which enables them to successfully interact with their surroundings. This exceptional visual acuity is mainly due to their well-developed eyes, which allow for excellent color discrimination, depth perception, and the ability to see in low-light conditions.

Primates possess forward-facing eyes, a feature that contributes to the enhancement of their depth perception. This is crucial for tree-dwelling species that must accurately judge distances when jumping between branches or reaching for food. Additionally, the majority of primates have trichromatic vision, meaning they can see and differentiate a wide range of colors. This ability helps them identify ripe fruits and detect potential predators or threats.

Furthermore, primates have a larger brain size in comparison to other mammals, which aids in the processing of visual information. The visual cortex, the part of the brain responsible for processing visual data, is particularly well-developed in primates, enabling them to efficiently interpret and respond to their environment.

In summary, primates rely primarily on vision to navigate and adapt to their surroundings. Their advanced visual capabilities, such as enhanced depth perception, color discrimination, and low-light vision, coupled with a well-developed visual cortex, allow them to successfully interact with their environment and thrive in a variety of habitats.

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Those sound waves travel at a speed of 1904 meters per second.

The equation for velocity is v = (68 Hz)(28m) = 1904 m/s.

As with all waves, the relationship between the speed of sound, its frequency, and its wavelength is vw=f, where vw denotes the speed of sound, f denotes its frequency, and f denotes its wavelength.

The frequency of a wave is expressed in Hertz (Hz), which is the number of waves that pass by each second. A sound wave, for instance, might have a frequency of 450 Hz.

"The distance between the two successive crests or troughs of the light wave" is how wavelength of light is described. Using the Greek letter lambda (λ), it is identified.

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"over the last eight years, we've delivered on that promise in many ways, both big and small, including, of course, providing health coverage to 20 million more Americans and making healthcare more affordable for all Americans."

The quotation that addresses the audience's concern about President Obama taking actions at the end of his term while waiting for President Trump to take office is:

"over the last eight years, we've delivered on that promise in many ways, both big and small, including, of course, providing health coverage to 20 million more Americans and making healthcare more affordable for all Americans."

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"Yes, the electronic crime scene is handled completely differently from a traditional crime scene. The electronic crime scene refers to a crime that has taken place in the digital world.

In contrast, a traditional crime scene refers to a crime that has taken place in the physical world, and it is evident that the two scenarios are handled differently.

An electronic crime scene refers to the area or place where electronic evidence is gathered for use in investigations or legal proceedings. Electronic evidence refers to information or data stored, created, or transmitted in electronic devices, including computers, smartphones, flash drives, and other digital devices. The collection of electronic evidence differs significantly from the collection of traditional evidence. The first step is the preservation of electronic evidence. In a traditional crime scene, it is possible to cordon off the area using yellow tapes, close windows, and take photographs of the scene. However, this is not the case with an electronic crime scene since electronic evidence is intangible. This is why digital forensic investigators begin the evidence preservation process by creating a forensic image of the electronic device under investigation. This is done to prevent data loss or alteration before investigations commence.

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Answer:

X: period

Y: tangential speed

Explanation:

100% on quiz your welcome(:

The quantities belonging in cells X and Y is to be considered as the

X: period

Y: tangential speed

The equation for centripetal acceleration is

= v² / r

here,  v should be the tangential velocity of the body

And the radius of curvature.

So based on this, we can say that

Column X. Tangential Speed

Column Y. radius  

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Answer:

t = S / V = 3.8E8 / 3E8 = 1.3 sec

It takes over 1 second for a radio signal to travel between the earth and the moon.

Answer:

c

Explanation:

moving the mass of each object

Answer:C. Moving the objects farther apart

Explanation:

Condensation is an exothermic phase change. Hence the correct answer is A) Condensation.

Condensation is an exothermic phase change because it involves the transition of a substance from the gaseous state to the liquid state. During condensation, the gas molecules lose energy and come together to form a liquid. This energy release is typically in the form of heat, making condensation an exothermic process.

In contrast, the other phase changes listed are endothermic.

Melting (B) is the transition from a solid to a liquid, vaporization (C) is the transition from a liquid to a gas, and sublimation (D) is the transition from a solid directly to a gas.

These processes require an input of energy to overcome intermolecular forces and break the bonds between particles, making them endothermic.

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Answer:

its a pie chart

Explanation:

.........................

Answer:

its a pie chart?

Explanation:

.......

Answer:

indepent valuable and random variable

Answer: A standard 9V battery has about 400-600 mAh capacity. In the most basic terms, these batteries can supply about 500 milliamps for one hour before being "dead". With electricity, we measure the amount of charge flowing through the circuit over a period of time. Current is measured in Amperes (usually just referred to as "Amps"). An ampere is defined as 6.241*10^18 electrons (1 Coulomb) per second passing through a point in a circuit. In a series circuit, amperage, or amplitude, of the current remains constant and can be calculated using Ohm's law V = I/R while the voltage drops across each resistor that can be summed up to get the total resistance.

Hope this helps........ Stay safe and have a Merry Christmas!!!!!!!! :D

In free-fall motion the velocity is given by the following equation of motion:

Where:

Therefore, the velocity increases linearly with time. This happens if the object encounters no air resistance. In the case that there is air resistance the object will reach a terminal velocity.

In the case of distance, this is given by the following equation:

This means that the distance increases with time following a parabolic function.