if 8 different amplitudes are used, how many bits can be transmitted with each amplitude change? if 16 different frequencies are used, how many bits can be transmitted with each frequency change?

Answer:

2.67 × 10⁻⁸ N

Explanation:

In order to find the gravitational force between two objects whose masses are known, we have to use the following formula:

\(\boxed{F = G\frac{\ m_1m_2}{r^2}}\),

where:

• F ⇒ force

• G ⇒ universal gravitational constant = 6.67 × 10⁻¹¹ m³ kg⁻¹ s⁻²

• m₁, m₂ ⇒ masses of the two objects = 1000 kg

• r ⇒ distance between the objects

Therefore, if we use the formula and information from above, we get:

F = \(6.67 \times 10^{-11} \times \frac{1000 \times 1000}{(50)^2}\)

    = 2.67 × 10⁻⁸ N

Answer:

thermal energy

Explanation:

heat transfers into it causing it to physically change

Answer:

A pesar de las diferencias entre cada copo de nieve y las grandes familias de copos que existen, estos todavía tienen una base hexagonal. Esta estructura hexagonal se explica por la forma en que las moléculas de agua se unen para formar un cristal

Despite the differences between each snowflake and the large families of flakes that exist, they still have a hexagonal base. This hexagonal structure is explained by the way in which water molecules come together to form a crystal.

Explanation:

mn

If the crown was indeed made of pure gold, it would have displaced \(31.09 cm³\) of water.

To determine the volume of water displaced by the crown, we need to use Archimedes' principle, which states that the buoyant force on an object submerged in a fluid is equal to the weight of the fluid displaced by the object.

The density of gold is given as \(19.3 g/cm³\). Since we have the mass of the crown, we can calculate its volume using the formula:

Volume = Mass / Density

Given:

Mass of the crown =\(6.00 x 10² g\)

Density of gold = \(19.3 g/cm³\)

Volume of the crown =\((6.00 x 10² g) / (19.3 g/cm³)\)

Let's calculate the volume:

Volume =\((600 g) / (19.3 g/cm³)\)

Volume = \(31.09 cm³\)

Therefore, if the crown was indeed made of pure gold, it would have displaced \(31.09 cm³\) of water.

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The formula for net torque is T=flsinФ which is the cross product of perpendicular force multiplied by distance.

When displaced from equilibrium, the system experiences a net force or torque in a direction opposite to the direction of the displacement. Equilibrium is independent of displacement from its original position

Energy is conserved so same amount of energy with or without machine Angular Momentum conserved if net external torque is zero Linear Momentum conserved if net external force is zero. Kinetic Energy conserved if elastic collision.

The first condition necessary to achieve equilibrium is the one already mentioned: the net external force on the system must be zero. Expressed as an equation, this is simply net F = 0 but Note that if net F is zero, then the net external force in any direction is zero. For example, the net external forces along the typical x- and y-axes are zero.

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Centripetal acceleration is a vector pointing towards the center, allowing objects to maintain circular motion.

The correct statement is: "The centripetal acceleration in circular motion is a vector pointing radially towards the center." Centripetal acceleration is the acceleration directed towards the center of the circle, and it is always perpendicular to the velocity vector. It is responsible for constantly changing the direction of the velocity vector, allowing an object to maintain circular motion. This acceleration is necessary to counteract the outward force experienced by an object moving in a curved path. Without centripetal acceleration, the object would move in a straight line tangent to the circle. Thus, the correct option is b) It is a vector pointing radially towards the center.

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The work done is greater in the case of constant pressure expansion. This is because the area under the curve representing the process on a p-v diagram is larger for the constant pressure process than for the constant temperature process, indicating that more work is done by the gas in the former case.

The work done by the gas during the expansion depends on the path taken in the p-v diagram. Let us consider two paths for the given expansion:

Path 1: Constant Pressure (isobaric) followed by Constant Temperature (isothermal) expansion

Path 2: Constant Temperature (isothermal) followed by Constant Pressure (isobaric) expansion

For Path 1, the gas expands at a constant pressure, and therefore the work done is given by:

W = PΔV

where P is the constant pressure and ΔV is the change in volume of the gas. Next, the gas expands at a constant temperature, so the work done during this stage is given by:

W = nRT ln(Vf/Vi)

where n is the number of moles of the gas, R is the ideal gas constant, T is the constant temperature, and Vf and Vi are the final and initial volumes of the gas, respectively.

For Path 2, the gas expands at a constant temperature, and therefore the work done is given by:

W = nRT ln(Vf/Vi)

where n, R, T, Vf, and Vi are the same as before. Next, the gas expands at a constant pressure, so the work done during this stage is given by:

W = PΔV

Comparing the two paths, we can see that the work done in Path 1 is greater than the work done in Path 2. This is because in Path 1, the gas expands against a constant pressure, which requires more work to be done compared to Path 2, where the gas expands against a decreasing pressure. The work done during the isothermal expansion in Path 1 is also greater than the work done during the isobaric expansion in Path 2, since the former involves a larger change in volume.

Therefore, the work done is greater for the expansion where the gas first expands at constant pressure and then at constant temperature.

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Explanation:

Distance= speed × time

= 6 × 12 m

= 72 m

Answer:

Answer:

g

Explanation:

The angular momentum of individual marble remains the same and two marble system also remains same. due to the momentum conservation rule. owing to the two spherical magnetic marbles of identical mass.

Having edges with similar velocity and coming from opposite directions. When they are close to each other, they communicate and move as a unit. If you try to balance while getting on a bicycle without a kickstand, you will undoubtedly fall off. But as soon as you start pedalling, these wheels start to rotate. Balance will be easier because they'll be averse to change. Angular momentum (rarely moment of momentum or rotational momentum) is employed as the rotating analogue of linear momentum in physics.

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The complete question is -

two spherical magnetic marbles of equal mass approach each other with equal speeds from opposite directions, with their edges along the same line. when they are side by side, they connect and move as a system. consider the effects of friction and spin to be negligible. which statement correctly describes any changes in the angular momentum of an individual marble or of the two-marble system?

a) The angular momentum of individual marble decreases and two marble system also decreases.

b)The angular momentum of individual marble decreases and two marble system remains same.

c)The angular momentum of individual marble remains the same and two marble system also remains same.

d)The angular momentum of individual marble increases and two marble system also increases.

The curve should be banked at an angle of approximately 9.6 degrees.

When a car is traveling along a banked curve, there are two forces acting on it: the force of gravity (which pulls the car down) and the normal force (which pushes the car towards the center of the curve). If the curve is banked at the correct angle, these two forces will combine to provide the necessary centripetal force to keep the car moving in a circular path. The formula for the centripetal force is:F_c = m v^2 / r.where F_c is the centripetal force, m is the mass of the car, v is its velocity, and r is the radius of the curve.

In the absence of friction, the necessary centripetal force is provided entirely by the normal force, which is perpendicular to the surface of the road. The normal force can be resolved into two components: one perpendicular to the surface of the road (which balances the force of gravity) and one parallel to the surface of the road (which provides the necessary centripetal force).The angle of the curve, θ, is related to the velocity of the car and the radius of the curve by the equation: tan(θ) = v^2 / (g r)where g is the acceleration due to gravity.

Substituting the given values, we get: tan(θ) = (56 mph)^2 / (32.2 ft/s^2 * 1000 ft)tan(θ) = 0.168Taking the inverse tangent of both sides, we get:θ = tan^-1(0.168)θ = 9.6 degrees. Therefore, the curve should be banked at an angle of approximately 9.6 degrees.the curve should be banked at an angle of approximately 9.6 degrees.

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Answer:

It is a product, so it is released by the plant.

Explanation:

\(6CO2 + 6H2O\) → \(C6H12O6 + 6O2\)

The plant uses water and carbon dioxide to create glucose and oxygen. Glucose is plant food, and Oxygen is given off as a byproduct.

Answer:

It is a product, so it is released by the plant.

Explanation:

Answer:

C

Explanation:

the thermometer is the device which is used to measure temperature ofthe body. here thermo Means heat and meter means measuring

Answer:

Approximately \(2.69\; {\rm A}\).

Explanation:

Ensure that all values are measured in standard units. Charge should be measured in coulombs, while time should be measured in seconds:

\(\begin{aligned}t &= 3.0\; {\rm hr} \times \frac{3600\; {\rm s}}{1\; {\rm hr}} = 10800\; {\rm s}\end{aligned}\).

Electric current \(I\) is the rate of flow of electric charge.

In order to find the electric current, divide electric charge \(q\) by the time \(t\) required to transfer these charge. If charge \(q\!\) is measured in coulombs and time \(t\!\) is measured in seconds, the unit of current \(I\)would be amperes:

\(\begin{aligned}I & = \frac{q}{t} \\ &= \frac{29000\; {\rm C}}{10800\; {\rm s}} \approx 2.69\; {\rm A}\end{aligned}\).

The net electric field at the bottom left corner of the square is directed diagonally towards the bottom right corner.

The net electric field at a point due to multiple charges can be determined by vector addition of the individual electric fields produced by each charge. In this case, we have two particles with charges of +Q located at the opposite corners of a square.

Since the charges are of the same sign, they repel each other, resulting in electric fields that point away from each other. At the bottom left corner, the electric field produced by the charge at the top left corner points diagonally towards the top right corner of the square.

Similarly, the electric field produced by the charge at the bottom right corner points diagonally towards the top left corner of the square.

When we combine these two electric fields, they add up vectorially to produce a net electric field at the bottom left corner. Since the electric fields are equal in magnitude and opposite in direction, the resultant electric field is directed diagonally towards the bottom right corner of the square.

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Answer:

what

Explanation:

Answer:

El periodo del péndulo simple, para oscilaciones de poca amplitud, viene determinado por la longitud del mismo y la gravedad.

Explanation:

No influye la masa del cuerpo que oscila ni la amplitud de la oscilación. Donde: T: Periodo del péndulo.

Answer:

Look below.

Explanation:

All the symptoms provided points to the common problem of dehydration. Especially a physically active person because they are constantly sweating which leads to the loss of bodily fluids and dehydration.

There are some traits of successful entrepreneurs, these are as follows:

1. He should be a highly motivated towards the work.

2. He sholud be creative in nature. He should think out of box and develop some ideas for the problem.

3. He should have clear vision for the future.

4. He should be very versatile and ready to adapt any changes.

5. He should be ready to take some risk.

6. He should have the ability of decision making and leadership quality.

Explanation:

group of multiple universes

these universes comprise everything that exists: the entirety of space, time, matter, energy, information, and the physical laws and constants that describe them.

All large telescopes are reflectors because large lenses are expensive to make and because large lenses sag under their own weight.

Telescopes are instruments used to observe celestial objects in the night sky. They work by collecting and focusing light, allowing astronomers to see distant stars, galaxies, planets, and other objects. Telescopes come in different types, including refracting telescopes, reflecting telescopes, and compound telescopes.

Compound telescopes, on the other hand, use a combination of lenses and mirrors. Telescopes have revolutionized our understanding of the universe by allowing us to study distant objects in great detail. They have helped us discover new planets, stars, galaxies, and even black holes. With the help of telescopes, astronomers have been able to make groundbreaking discoveries in the fields of astrophysics, cosmology, and planetary science, and they continue to be an essential tool in the study of the cosmos.

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Complete Question: -

Why are all large astronomical telescopes reflectors?

The wavelength of the standing wave pattern on the 9.0 m long string is 18.0 m.

To determine the wavelength of the standing wave pattern on the 9.0 m long string, we need to analyze the diagram carefully. In a standing wave, nodes and antinodes are formed. Nodes are the points on the string where the displacement is zero, while antinodes are the points of maximum displacement.

In the diagram, we can observe that there are two nodes formed, one at each end of the string. This implies that the string is fixed at both ends, creating a situation known as the fundamental mode or the first harmonic. In this mode, half of a wavelength is equal to the length of the string.

Therefore, the wavelength can be calculated by multiplying the length of the string by 2, since there are two halves in a full wavelength. Thus, the wavelength is 2 times the length of the string: 2 * 9.0 m = 18.0 m.

In conclusion, the wavelength of the standing wave pattern on the 9.0 m long string is 18.0 m.

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Answer:

149 N

Explanation:

We can start by resolving the forces acting on the chair in the vertical direction:

N - mg = 0

where N is the normal force exerted by the floor on the chair, m is the mass of the chair, and g is the acceleration due to gravity.

Since the chair is not accelerating vertically, we know that the sum of the forces in the vertical direction is zero.

Now, let's resolve the forces acting on the chair in the horizontal direction. We'll use the force you applied and the force of friction between the chair and the floor:

F - f = ma

where a is the acceleration of the chair, and f is the force of friction.

The force of friction can be calculated as:

f = μN

where μ is the coefficient of friction between the chair and the floor.

We don't know the coefficient of friction or the acceleration of the chair, so we can't solve this equation directly. However, we can use the fact that the chair is sliding along the floor, which tells us that the force of friction is equal and opposite to the force you applied:

f = F sinθ = 39.0 N * sin(36.0°) ≈ 23.5 N

Therefore, we can substitute this value for f in the horizontal force equation:

F - f = ma

39.0 N * cos(36.0°) - 23.5 N = ma

Solving for a, we get:

a ≈ 0.34 m/s^2

Now we can go back to the vertical force equation and solve for the normal force:

N - mg = 0

N = mg = (110 N) + (m chair)(a)

We don't know the mass of the chair, but we can use the acceleration we just calculated to find it:

a = F/(m chair)

m chair = F/a ≈ 115 kg

Substituting this value for the mass of the chair, we get:

N = mg = (110 N) + (115 kg)(0.34 m/s^2)

N ≈ 149 N

Therefore, the normal force that the floor exerts on the chair is approximately 149 N.

When weighing chemicals on a balance, the term "tare" is used. Pressing the tare button enables you to record only the weight of the substance being measured, not the weight of the container it is being measured in.

Weighing by difference is automatically accomplished by tarring a balance. When a balance is tared with an object on the balance pan, the weight of the object is automatically subtracted from each reading up until the balance is re-tared or zeroed.

Testing a balance is crucial because you want an accurate result when you weigh an object. The calculations could all be off if a balance is not set to zero.

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Answer:

0.05s

Explanation:

frequency = speed / wavelength = 20/1 = 20Hz. Thus period = 1/f = 1/20 = 0.05 s

This question involves the concepts of wave speed and wavelength.

The period of the wave is "0.05 s".

The wave speed is given in terms of wave frequency and wavelength as follows:

\(v=f\lambda\\\\f=\frac{v}{\lambda}\)

where,

Therefore,

\(f=\frac{20\ m/s}{1\ m}\\\\\)

f = 20 Hz

Now, the period of the wave is the reciprocal of the frequency of the wave:

\(Period = T=\frac{1}{f}\\\\T=\frac{1}{20\ Hz}\)

T = 0.05 s

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Answer:

4,892 light years

Explanation:

the earth is rotate the sun from sun to earth is 4892

An alternative way to explain Hubble's Law without relying on the standard Big Bang idea of a universe with no center and no edge is through the concept of a "tired light" hypothesis.

According to this hypothesis, the redshift observed in distant galaxies is not due to their motion away from us in an expanding universe, but rather the result of photons gradually losing energy as they travel through space.

In the tired light scenario, the wavelength of light is thought to stretch over time due to interactions with matter or other unknown processes. As a result, the light from distant galaxies appears redshifted, mimicking the effect of cosmic expansion. This explanation implies that the universe may have a finite size and a center, challenging the notion of an infinite and uniformly expanding universe.

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Answer is D

Ndmdjdndbdjdkskd

The impulse acting on an object and the impact time, the equation F= I / Δt can be used to calculate the force applied to an object, therefore the correct answer is D.

The product of the average applied force and the time for which it is exerted is known as an impulse.

the mathematical relation for impulse is

Impulse  = F * Δt

where F represents the force applied and Δt represents the time for which the force is applied

Thus, the correct equation that can be used to calculate the force applied to an object is F = I /Δt and the correct option is D.

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