the energy lost between trophic levels why?

ANSWER:

(a)

STEP-BY-STEP EXPLANATION:

The first thing is to make the force diagram to be able to determine the answer, just like this:

Therefore, in the y-direction, we can determine the value of the normal force as follows:

Answer:

Explanation:

12,400,000

the SI unit of energy is the joule (J) . the joules has base units of kg•m^2/s^2=N•m. A joule is defined as the work done or energy required to exert a force of one Newton for a distance of one metre.

hope this helps you

Answer:

(a) The magnitude of the force electric force F = k ×(+Q) × (-2·Q)/r₀² = -2·Q²/(r₀²) which can be written as follows;

\(F = \dfrac{k \times (+ Q) \times (-2\cdot Q)}{r_0^2} = -\dfrac{k \times 2 \times Q^2}{r_0^2}\)

Given that the charge of Y is twice the charge on X, we have the charge X will move towards the charge Y which is the +x direction

(b) The force, F, acting between the charges is given as follows;

\(F = \dfrac{k \times Q_1 \times Q_2}{r_0^2}\)

When, Q₁ = X = -4Q, Q₂ = Y = -2Q, and r₀ = 2·r₀ we have;

\(F = \dfrac{k \times (-4\cdot Q) \times (-2\cdot Q)}{(2 \cdot r_0)^2} = \dfrac{k \times 8 \times Q^2}{4 \cdot r_0^2} = \dfrac{k \times 2 \times Q^2}{r_0^2}\)

Therefore, the electric force exerted on object Y by the object X is the same and acts in an opposite direction to the force of X on Y in (a)

The net charge of the two objects in part (a) is Q - 2Q = -Q

The net charge of the two objects in part (b) is -4Q - 2Q = -6Q

Therefore, the net charge increases by a factor of 6 in part (b)

Explanation:

Answer:

Circuit

Explanation:

because a roughly circular line, route, or movement that starts and finishes at the same place.

This question can be solved by using the concepts of electrical energy, electricity, circuit, and electric current.

The flow of electricity from one place to another is called "Electrical Energy".

The electric current or electricity is defined as the rate of flow of electric charges from one point to another point, along a path known as a circuit. Electrical energy is caused by the movement of electric charges or the electric current from one point to another point of the circuit.

Therefore, this flow of electricity or electric current from one place to another place is termed Electrical Energy.

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The attached picture shows examples of electrical energy.

The direction in which water flows down a drain is not affected by whether you are in the northern or southern hemisphere.

The idea that water drains counterclockwise in the northern hemisphere and clockwise in the southern hemisphere is a popular myth.

The direction in which water flows down a drain is actually determined by a combination of factors such as the shape of the basin or container, the location of the drain, and any other forces acting on the water, such as the Coriolis force.

The Coriolis force is a real phenomenon that affects the movement of objects in the atmosphere and oceans, but its effect on the flow of water down a drain is generally too weak to be noticeable. In fact, the direction of rotation of the Earth has very little impact on the direction in which water flows down a drain.

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Matt's speed is 10 meters per second. Matt's speed can be calculated by dividing the distance he traveled by the time it took him to travel that distance.

In this case, Matt traveled 250 meters in 25 seconds, so his speed is:

Speed = distance / time
Speed = 250 meters / 25 seconds
Speed = 10 meters per second

Therefore, Matt's speed is 10 meters per second.

In HTML format:

Matt's speed can be calculated by dividing the distance he traveled by the time it took him to travel that distance. In this case, Matt traveled 250 meters in 25 seconds, so his speed is:

Speed = distance / time

Speed = 250 meters / 25 seconds

Speed = 10 meters per second

Therefore, Matt's speed is 10 meters per second.

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To react completely with 0.500 L of volume of 0.500 M Na2CO3, you would need 0.250 L of 2.00 M HCl.

Write down the balanced chemical equation for the reaction between HCl and Na2CO3:

2 HCl + Na2CO3 → 2 NaCl + H2O + CO2

Determine the stoichiometry of the reaction:

From the balanced equation, we can see that 2 moles of HCl react with 1 mole of Na2CO3.

Calculate the number of moles of Na2CO3:

Given that the volume of Na2CO3 solution is 0.500 L and the concentration is 0.500 M, we can use the formula:

Moles = Concentration × Volume

Moles of Na2CO3 = 0.500 M × 0.500 L = 0.250 moles

Use the stoichiometry to determine the number of moles of HCl needed:

According to the stoichiometry of the balanced equation, 1 mole of Na2CO3 reacts with 2 moles of HCl.

Therefore, to react with 0.250 moles of Na2CO3, we would need 2 × 0.250 = 0.500 moles of HCl.

Convert moles of HCl to volume:

Given that the concentration of HCl is 2.00 M, we can use the formula:

Volume = Moles / Concentration

Volume of HCl = 0.500 moles / 2.00 M = 0.250 L

Convert the volume to liters:

The final answer is 0.250 liters of 2.00 M HCl are needed to react completely with 0.500 L of 0.500 M Na2CO3.

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The can be obtained by using the balanced chemical equation: Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2  Write the balanced chemical equation for the reaction.

Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2

Calculate the number of moles of Na2CO3. Using the formula n = c × V, where n is the number of moles, c is the concentration, and V is the volume, we get:

n = c × V

= 0.500 M × 0.500 L

= 0.250 mol

Calculate the number of moles of HCl required.The balanced chemical equation shows that 2 moles of HCl react with 1 mole of Na2CO3. Hence, the number of moles of HCl required can be calculated as follows

:n(HCl) = 2 × n(Na2CO3)

= 2 × 0.250 mol

= 0.500 mol

Calculate the volume of 2.00 M HCl required.The number of moles of HCl required is 0.500 mol. Using the formula V = n/c, where V is the volume, n is the number of moles, and c is the concentration, we get:

V = n/c

= 0.500 mol ÷ 2.00 M

= 0.250 L

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Answer:

well it depends on how fast for short its B

Explanation:

The moment of inertia of a bicycle wheel of 65cm diameter and mass 1.1 kg is 0.116 Kg m^2.

What is moment of inertia?

Moment of inertia can be defined as the tendency of any object to remain in the state of rest or a constant rotational velocity which can be calculated by I = mr^2, where I is moment of inertia, m is mass and r is radius.

The moment of inertia of the bicycle wheel can be calculated as,

diameter of the bicycle wheel = 65 cm = 0.65 m

radius = d/2 = 0.65 m / 2 = 0.325 m

I = mr^2 = 1.1 Kg x (0.325m)^2 = 0.116 Kg m^2

Therefore the moment of inertia of the bicycle wheel is 0.116 Kg m^2.

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As a result, passive responses are limited to short distances and cannot propagate long distances like action potentials. The given statement is True.

Passive (subthreshold) responses are graded potentials that decay rapidly with distance. These responses occur when a neuron receives small, subthreshold signals from other neurons. They do not reach the threshold for firing an action potential, and therefore do not propagate along the axon. Instead, the signal decays with distance from the site of stimulation, due to the passive leakage of charge across the neuronal membrane. This decay is caused by the resistance of the membrane and the leakiness of the ion channels that make up the membrane. As a result, passive responses are limited to short distances and cannot propagate long distances like action potentials.

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The average speed of the car is 35.6m/s

The average speed is the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity. It is represented by the magnitude and does not have direction. It is measured in meter per second

Therefore average speed = total distance / total time taken

The total distance here is 500+ 500= 1000km = 1×10⁶m

the time taken for the first journey = 500×1000/35= 14285.71 seconds

the time taken for traveling back = 500000/43= 11627.91 seconds

total time taken = 14285.71 + 11627.91 = 25913.62seconds

therefore average speed = 1000000/25913.62

= 35.6m/s

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Answer:

The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second

Explanation:

Horizontal Launch

When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled exclusively by gravity until it eventually hits the ground.

To calculate the vertical distance (y) traveled by the object in terms of the time (t) we use:

\(\displaystyle y=\frac{g.t^2}{2}\)

The fastball is thrown horizontally. The distance the ball falls in t=1/4 seconds = 0.25 seconds, is:

\(\displaystyle y_1=\frac{9.8*0.25^2}{2}\)

\(\displaystyle y_1=0.30625\ m\)

The distance the ball falls in t=1/2 seconds = 0.5 seconds is:

\(\displaystyle y_2=\frac{9.8*0.5^2}{2}\)

\(\displaystyle y_2=1.225\ m\)

The distance it falls in the second 1/4 second is:

\(y_2-y_1=1.225\ m-0.30625\ m\)

\(y_2-y_1=0.91875\ m\)

The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second

Answer:

it would take approximately 3 years and 2 mouths

Explanation:

To achieve this speed, they use the gravitational pulls of objects in our solar system to increase their speed. It took these two spacecraft about 3 years and 2 months to reach the ringed planet of Saturn.

Approximately 3 years and 2 mouths would be taken.

At its closest,

Saturn is 1.2 billion kilometers away from Earth. So with today's spacecraft technology, you'll need about eight years to make the trip.

To increase their speed, we use the gravitational pulls of objects in our solar system . It took these two spacecraft about 3 years and 2 months to reach the ringed planet of Saturn.

For space travel, distances are very large.

So the rate at which you travel is very important.

However, two other factors play an important role. One is that you rarely travel in a straight line between any two destinations and the other is that if you want to stop some place (like Apollo missions to the Moon), you spend a great deal of your travel time slowing down. If you can't slow down, you would just shoot right by your destination and keep going into deep space!

For example, the Apollo spacecraft took about 3 days to travel to the Moon even though it only covered a distance of about 375,000 km and at times reached a speed of 8 km/sec.

Therefore:

Approximately 3 years and 2 mouths would it take to get to Saturn travelling at the speed of an Aeroplan.

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A nova is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star, that slowly fades over several weeks or many months. Causes of the dramatic appearance of a nova vary, depending on the circumstances of the two progenitor stars

The amplitude of the air vibrations caused by a sound wave with a frequency of 249 Hz and an intensity of 7.7e-06 watts/m^2 is approximately 6.23 micrometers.

The relationship between frequency, intensity, and amplitude of a sound wave can be determined using the formula for sound intensity in air,

which is given by \(I = (1/2)\rho v \omega ^2A^2,\)

where I is the sound intensity, ρ is the density of the medium (air), v is the velocity of sound in air, ω is the angular frequency (2πf), and A is the amplitude of the sound wave.

In this case, we are given the frequency (f) as 249 Hz and the intensity (I) as 7.7e-06 watts/m^2. The velocity of sound in air (v) is approximately 343 m/s.

By rearranging the formula, we can solve for the amplitude (A) as follows:

\(A^2 = (2I) / (\rho v\omega ^2)\)

First, we need to calculate the angular frequency (ω) using the given frequency (f).

ω = 2πf = 2π(249 Hz).

Next, we substitute the values into the formula and calculate the amplitude:

\(A^2 = (2 \times 7.7 e-06 ) / (1.225 \times 343 \times (2\pi (249 ))^2)\)

\(A^2 = 1.66e-09\)

Taking the square root of both sides, we find:

A ≈ 4.07e-05 meters

Since the amplitude is given in meters, we convert it to micrometers by multiplying by 10^6:

\(A =4.07e-05 meters \times 10^6 = 40.7 micrometers\)

Therefore, the amplitude of the air vibrations caused by this sound wave is approximately 40.7 micrometers or 6.23 micrometers (rounded to two decimal places).

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Answer:

A temporary orbit in which a spacecraft awaits the next phase of its mission .

After going to the shops, a car driver places a bag of shopping on the passenger seat. during the journey home, the driver has to use the brakes to stop very suddenly. As the driver is wearing a seat belt the driver  nothing would happen to the driver.

Force is a term used to understand that if some external or internal affair which worked on a object which has some amount of mass and that creates a change in velocity, that affair is called the Force. It can be measured in dyne or newton.

As we know from the newtons first law where he explained the force,  he also explained about the force which acted on a body during the drive of any vehicle. That force called force because of movement. When some kind of mass drive a vehicle and it suddenly stops then the body tries to move forward. That causes the death of the driver.

But according to the question, the driver is wearing a seat belt. So the seat belt absorb the most amount of force in it because of its statistic nature. For this nature the driver will remain unharmed.

So from the above discussion we can say that, As the driver is wearing a seat belt the driver nothing would happen to the driver.

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a) Evaporation occurs at room

temperature only.

A protective device such as an egg carton, foam padding, or bubble wrap can be used to minimize the magnitude of the net force acting on an egg in a cart during a collision by providing cushioning some of the impact.

What is magnitude?
Magnitude refers to the size or scale of an object, event, or phenomenon. It is typically used to describe the intensity or amplitude of a physical quantity, such as the strength of an earthquake or the brightness of a star. Magnitude is also used to quantify the size of a population, the severity of an economic downturn, or the power of a political movement. Magnitude is usually expressed as a numerical value, such as a number on a Richter scale or a magnitude rating on a star catalog. Magnitude can also be expressed in terms of a relative or subjective scale, such as a rating of “strong” or “weak” for an earthquake. Magnitude is often used in scientific research to quantify the size of a phenomenon, such as the magnitude of climate change or the magnitude of a new medical breakthrough.

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The car's speed at the finish line of the race is approximately 81 m/s.

To calculate the car's speed at the finish line, we need to use the equations of motion. Since the car starts from rest and accelerates at a constant rate, we can use the equation:

v^2 = u^2 + 2as

where v is the final velocity, u is the initial velocity (which is 0 in this case), a is the acceleration, and s is the distance covered.

Given that the distance covered is 402 m and the car accelerates at a constant rate, we can rearrange the equation to solve for v:

v^2 = 0 + 2a(402 m)

v^2 = 804a m^2

v = sqrt(804a) m/s

Since the acceleration is constant throughout the race, we can directly substitute the value of a into the equation to find v. In this case, the value of a will result in v ≈ 81 m/s.

Therefore, the car is going at approximately 81 m/s at the finish line.

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Answer:

I = 0.82A

Explanation:

I = W/V

I = 90W/110V

I = 0.82A

Answer:

they are still keeping the physical componets justbin a different shape

Explanation:

Answer:

As an ice cube melts, its shape changes as it acquires the ability to flow. However, its composition does not change. Melting is an example of a physical change .

When electromagnetic radiation is Doppler-shifted by motion away from the detector, the observed wavelength increases.

When an object emitting electromagnetic radiation, such as light, is moving away from an observer (detector), the wavelengths of the observed radiation are stretched or increased.

This phenomenon is known as the Doppler shift. It occurs because the motion of the source affects the perceived frequency or wavelength of the radiation. When the source is moving away, the observed wavelength is longer compared to the emitted wavelength.

This effect can be observed in various contexts, such as the redshift observed in the light from distant galaxies, indicating their recession from us due to the expansion of the universe.

Additionally, it is relevant in understanding the behavior of stars, galaxies, and other astronomical objects. By analyzing the Doppler shift, scientists can infer important information about the motion and velocity of celestial objects.

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Option D is correct. An arch carries the thrust of weight to its sides with a post-and-lintel.

An arch is indeed a vertical curving construction that covers an elevated space that may or may not sustain the load above it or the pressure gradient against it

In the case of a horizontally arched, such as an embankment dam. While arches and vaults are often confused, A vault is defined as an ongoing arch forming a roof.

Option D satisfies the fill-in blanks option.

Hence option D is correct. An arch carries the thrust of weight to its sides with a post-and-lintel.

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Answer:

b warming your hands over a campfire.

Explanation:

This is thermal radiation, not heat conduction

Gas X, when held in a sealed chamber at STP, will have an approximate volume of 22.4 L.

At STP (Standard Temperature and Pressure), which is defined as 0 degrees Celsius (273.15 Kelvin) and 1 atmosphere of pressure, one mole of any ideal gas occupies a volume of 22.4 liters. This is known as the molar volume of a gas. It is a constant value that allows us to easily calculate the volume of a given amount of gas at STP.

The molar volume of 22.4 liters can be derived from the ideal gas law equation, PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature. At STP, the pressure is 1 atmosphere, and if we assume we have one mole of Gas X, we can rearrange the equation to solve for V:

V = (nRT) / P

Substituting the values for STP (n = 1 mole, R = 0.0821 L·atm/mol·K, P = 1 atm, T = 273.15 K) into the equation, we get:

V = (1 mol * 0.0821 L·atm/mol·K * 273.15 K) / 1 atm

 = 22.4 L

Therefore, the approximate volume of Gas X in a sealed chamber at STP is 22.4 L.

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