How do radio waves help support the big bang theory

Answer: B superconductors

Explanation:

Answer: Hydrogen is a chemical element with atomic number 1 which means there are 1 protons in its nucleus. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.

Explanation: hope this helps

Stem-and-leaf plots are an excellent way to display data. The outliers in a stem-and-leaf plot are the observations that are located far away from the other observations.

Stem-and-leaf plots are excellent for displaying numerical data in an orderly manner. They assist in determining the minimum, maximum, and range of data and can assist in determining patterns and variations. They also provide an excellent visual representation of the distribution of data and are a fantastic tool for spotting outliers. Outliers are observations in a dataset that are considerably different from the other observations. They can be identified in stem-and-leaf plots as values that are located far away from the rest of the data.

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Natural gas was the largest source about 38% of U.S. electricity generation in 2021. Natural gas is used in steam turbines and gas turbines to generate electricity.

Answer: 0.85 N

Explanation: We can solve this problem using the principles of buoyancy and Newton's laws.

First, we need to find the buoyant force acting on the metallic alloy block. The buoyant force is equal to the weight of the water displaced by the block, which can be calculated using the block's volume and the density of water:

V = m_block / ρ_block = 3.4 kg / 3700 kg/m³ = 0.0009189 m³

F_buoyant = ρ_water x g x V = 1000 kg/m³ x 9.8 m/s² x 0.0009189 m³ = 8.96 N

So the buoyant force acting on the metallic alloy block is 8.96 N.

Next, we can calculate the tension force in the spring scale attached to the block. Since the block is in static equilibrium, the tension force must be equal in magnitude and opposite in direction to the weight of the block plus the buoyant force:

Tension force = weight of block + buoyant force

Tension force = m_block x g + F_buoyant

Tension force = 3.4 kg x 9.8 m/s² + 8.96 N = 42.04 N

So the hanging scale reads 42.04 N.

Finally, we can find the reading of the lower scale. The lower scale measures the weight of the beaker and the water in it, minus the buoyant force acting on the beaker. The weight of the beaker and the water is:

weight of beaker + weight of water = m_beaker x g + m_water x g

weight of beaker + weight of water = 1.3 kg x 9.8 m/s² + 2.5 kg x 9.8 m/s² = 35.35 N

The buoyant force acting on the beaker can be calculated using the volume of water displaced by the beaker:

V = m_water / ρ_water = 2.5 kg / 1000 kg/m³ = 0.0025 m³

F_buoyant = ρ_water x g x V = 1000 kg/m³ x 9.8 m/s² x 0.0025 m³ = 24.5 N

So the reading of the lower scale is:

Reading of lower scale = weight of beaker + weight of water - buoyant force

Reading of lower scale = 35.35 N - 24.5 N = 10.85 N

Therefore, the lower scale reads 10.85 N.

An operational definition.

An operational definition is a definition that describes a process, procedure, or operation used to measure or manipulate a concept or variable in a particular study. It specifies the activities or procedures necessary to measure or manipulate a variable, making the variable more concrete and measurable. Operational definitions are commonly used in scientific research to ensure that different researchers are measuring or manipulating the same variable in the same way.

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The X₅ impulsive flare has a total X-ray flux that is four times greater than the X1 long-duration flare.

The total X-ray flux for the X5 impulsive flare is:

5x10-4e⁻² W/m² * 3600 s/hour * 1 hour

= 5.4 J/m²

The total X-ray flux for the X1 long-duration flare is:

1x10⁻⁴ e-t/3 W/m² * 3600 s/hour * 1 hour

= 1.2 J/m²

As you can see, the X₅ impulsive flare has a total X-ray flux that is four times greater than the X1 long-duration flare. Therefore, the X impulsive flare is more likely to signal the beginning of a significant space weather event.

The reason for this is that the X₅ impulsive flare is a much more powerful event. It releases a much larger amount of energy in a much shorter period of time.

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Answer:

Electromagnetic introduction is the production of an electromotive force (voltage) across an electrical conductor in a changing magnetic field.

The difference between them:

A transformer is a static device which transfers a.c electrical power from one circuit to the other at the same frequency, but the voltage level is usually changed. For economical reasons, electric power is required to be transmitted at high voltage whereas it has to be utilized at low voltage from a safety point of view. This increase in voltage for transmission and decrease in voltage for utilization can only be achieved by using a step-up and step-down transformer.

Hopefully this helped.

Answer:

A? what do you mean? ahhahhhhahhahahahahahahahhahahahahaaa

Answer:

The answer to your question is that A scientific hypothesis is the initial building block in the scientific method. Many describe it as an "educated guess," based on prior knowledge and observation

Explanation:

A hypothesis also includes an explanation of why the guess may be correct, according to National Science Teachers Association

Proving that, a hypothesis is based on a observations and scientific principals.

You r welcome and have a good day.

An example of a hypothesis based on observation and scientific principles is:

A hypothesis is an informed prediction or a tentative statement about what you think that would occur in a scientific experiment as a result of experience from observations accepted by scientific rules and law.

A hypothesis is a testable statement obtained from the research question but questions cannot be tested directly, it is the proposed relationship between the variables that are tested.

An example of a hypothesis is:

This specifies the direction of the hypothesis because one group is faster than the other.

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Answer:

It is important because it furnishes information about the composition, the temperature and maybe the mass or relative velocity of the body that emits or absorbs it.

Explanation:

The dew point for the products of combustion is 52.9 °C.

(a) In practical fuel burners, air in excess of that theoretically required for complete combustion is needed to ensure that combustion is complete and that products of combustion are safe to discharge into the environment. The excess air provides additional oxygen that is used to complete the combustion of any combustibles that were not burned during the initial combustion process. The effect of excess air on the combustion process is that it lowers the temperature of the flame and reduces the concentration of pollutants in the flue gas.

(b) The complete combustion equation is: C10H22 + (32 + 11.5 × 2)O2 → 10CO2 + 11H2O

For complete combustion, the volume percentage of CO2 and O2 in the dry products of combustion is 8% and 10% respectively. The air-fuel ratio by mass can be calculated as follows:

Air-fuel ratio by mass = Mass of air / Mass of fuel

Mass of air = Mass of fuel × (1 + Excess air) Mass of fuel = 1 kg

Excess air = 20% = 0.2Air-fuel ratio by mass = (1 + 0.2) / 1 = 1.2

The dew point for the products of combustion can be calculated as follows:

Dew point = (288.3 / (ln(P / 100) - 42.677)) - 273, where P is the exhaust gas pressure in Pa.

Dew point = (288.3 / (ln(101325 / 100) - 42.677)) - 273Dew point = 52.9 °C

Therefore, the dew point for the products of combustion is 52.9 °C.

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Answer:

A. Energy = 490 Joules

B. Power = 16.3 Watts

Explanation:

Given the following data;

Mass = 5kg

Height = 10m

Time = 3 seconds

To find the power;

First of all, we would have to determine the energy possessed by the object due to its height (potential energy).

We know that acceleration due to gravity is equal to 9.8m/s²

Energy = mgh

Energy = 5*9.8*10

Energy = 490 Joules

Now, we would find the power;

Power = energy/time

Power = 490/3

Power = 16.3 Watts

The nuisance doctrine is a legal principle that says someone who moves into a place knowing there is a nuisance there cannot later complain about the nuisance and demand compensation for it.

When a homeowner lives close to an airport, it is widely accepted that homeowner should have been aware of the potential noise and other disruptions connected with living close to an airport if the airport was already operational when the homeowner moved in. Such circumstances may make it more difficult for a homeowner to successfully file a claim for compensation based on noise pollution or other airport-related problems.

A stronger case might be made for compensation based on increased noise pollution and other negative effects caused by the airport if a homeowner moved into the neighbourhood before the airport was established and had no knowledge of or reasonable expectation of its construction. This is due to the fact that instead of "coming to the nuisance," they encountered a change in their surroundings after already settling down.

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The part of the scapula that articulates with the clavicle is called the acromion process. The acromion process is a bony projection located at the lateral end of the scapula, and it forms a joint called the acromioclavicular joint (AC joint) with the medial end of the clavicle. This joint allows for movement and stability between the scapula and the clavicle, contributing to the overall mobility of the shoulder.

In addition to the acromion process, there is another part of the scapula that articulates with the clavicle. It is called the lateral end of the clavicle. The lateral end of the clavicle forms a joint called the sternoclavicular joint with the medial end of the clavicle. This joint connects the clavicle to the sternum and allows for movement and stability of the shoulder girdle.

To summarize, the scapula articulates with the clavicle at two different joints: the acromioclavicular joint (AC joint) formed by the acromion process of the scapula and the medial end of the clavicle, and the sternoclavicular joint formed by the lateral end of the clavicle and the sternum. These joints play a crucial role in shoulder movement and stability.

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Answer:

Sound waves

Explanation:

Sound is made up of vibrations, or sound waves, that we can hear. These sound waves are formed by objects vibrating (shaking back and forth). Sound waves travel through air, water, and solid objects as vibrations. When they reach our ears, these waves make the delicate skin of the eardrums vibrate.

Answer:

Sound is the vibration of practical i.e. Sound wave consists of vibrating particles.

Sound Waves:-

The sound wave consists of vibrating particles. These knock into other particles causing them to vibrate, and so the sound can travel away from the source.

You can hear sound because the vibrations in the air cause your ear drums to vibrate. This vibration is converted into signals which travel down a nerve to your brain.

Answer:

1.125 m/s^2

Explanation:

Given:

To Find:

Formula used:

where,

v = final velocity

u = initial velocity

a = acceleration

S = Displacement

Let the acceleration be a.

Using the above formula, we have

60^2 = 0^2 + 2(a)(1600)

3600 = 3200a

a = 36/32

a = 9/8

a = 1.125 m/s^2

So, the acceleration is 1.125 m/s^2.

Answer:

5000 W

Explanation:

Applying,

P = W/t................. Equation 1

Where P = Power, W = work done by the car, t = time.

But,

W = F×d ............. Equation 2

Where F = Force, d = distance

Substitute equation 2 into equation 1

P = (F×d)/t.............. Equation 3

From the question,

Given: F = 2000 N, d = 50 m, t = 20 seconds.

Substitute these values into equation 3

P = (2000×50)/20

P = 5000 W

Answer:

if it is a true or false, the answer is true

Explanation:

The mantissa distance, which is referred to as the decimal portion of a logarithm, has a value of 0.030 in this number.

A common logarithm's integral portion is known as the characteristic, and its non-negative decimal portion is known as the mantissa. If log 39.2 equals 1.5933, then 1 is the characteristic and 5933 is the logarithm's mantissa.

The base-10 logarithm's mantissa, which represents the digits of the provided integer but not its magnitude, is a common logarithm's fractional component. For instance, both ㏒10201.3010 and                    ㏒102002.3010 have a mantissa of 0.3010.

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Answer:

Describe the process of boiling

In data analysis, it is important to compare theoretical expectations with experimental data to determine the parameters of an equation. However, in the circuit under consideration, the equations reviewed at the beginning of activity 2

The applicability of the equations for a capacitor charging from zero and discharging to zero depends on the specific circuit configuration and behavior of the capacitor. If the circuit under consideration involves a capacitor that is constantly charging and discharging to nonzero voltages or if the capacitor is part of a larger circuit with other components, the equations for charging and discharging from zero may not accurately represent the behavior of the circuit. Therefore, it is important to carefully analyze the circuit configuration and consider the specific conditions and behavior of the capacitor to determine the appropriate equations and parameters for data analysis.

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Answer:

Explanation:

there must be a cause—which is a net external force—for there to be any change in velocity, either a change in magnitude or direction.

Newton’s Second Law of Motion is defined as Force is equal to the rate of change of momentum. For a constant mass, force equals mass times acceleration.

\(\Delta p = mv - mu \\\\\implies \Delta p = m(v-u) \\\\F = \dfrac{\Delta p}{\Delta t} = \dfrac{m(v-u)}{\Delta t} = ma\)

F = ma is the formula of Newton’s Second Law of Motion.

To prove Newton's second law of motion,

Given Force F = Δp/Δt

Proof for F=ma

     Let us consider an object of mass m, moving along a straight line with an initial velocity u, final velocity v and it has some particular time t and thus Momentum can be related as,

For initial velocity u, p1 = m × u

The final velocity v, p2 = m × v

The change in momentum can be expressed as

p2 – p1 = (m × v) – (m × u)

p2 – p1 = m (v – u)

Here, we know that the rate of change of momentum with respect to time is proportional to the applied force.

The applied force F,

F ∝ [m (v – u)]/t

F ∝ m × a

As acceleration (a) is the rate of change of velocity with respect to time.

F = k × m × a

F = ma

where k can be the constant.

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The direction of the current induced in the loop as the magnet is moving is counterclockwise as viewed from above.

According to Faraday's law of electromagnetic induction, a changing magnetic field can induce an electromotive force (EMF) in a nearby conductor, such as a loop of wire. In this case, as the bar magnet is moved away from the loop, the magnetic field passing through the loop decreases. This changing magnetic field induces a current in the loop, which will generate a magnetic field that opposes the change in the original magnetic field. Using the right-hand rule, if the south pole of the magnet is closest to the loop, the induced current will flow counterclockwise around the loop as viewed from above. This is because the changing magnetic field produced by the magnet moving away from the loop creates a magnetic field that opposes the magnet's original field, and the direction of the induced current is such that its own magnetic field opposes the change in the original field.

Therefore, the direction of the current induced in the loop as the magnet is moving is counterclockwise as viewed from above.

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Answer:

If you hold a compass near a wire through which current is flowing, the needle on the compass will be deflected. Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which the current is flowing

Explanation:

good luck

The frequency of a record playing at 33 1/3 rpm is approximately 0.556 Hz, and the angular velocity is approximately 6.981 radians per second.

A record spinning at 33 1/3 rpm (revolutions per minute) refers to the number of complete rotations it makes in one minute. To find the frequency, we need to convert the rpm to Hz (hertz), which represents the number of complete cycles per second. To do this, we divide the rpm by 60, as there are 60 seconds in a minute.

Therefore, the frequency can be calculated as follows:

Frequency = 33 1/3 rpm / 60 seconds per minute

          = 0.556 Hz

This means that the record completes approximately 0.556 cycles (or revolutions) per second.

Angular velocity, on the other hand, refers to the rate at which an object rotates around a fixed axis. It is usually measured in radians per second (rad/s). To find the angular velocity, we need to convert the rpm to radians per second. Since one complete rotation (360 degrees) is equivalent to 2π radians, we can use this conversion factor:

Angular velocity = (33 1/3 rpm) * (2π radians per one complete rotation) / 60 seconds per minute

                            = 6.981 radians per second

This means that the record spins at an angular velocity of approximately 6.981 radians per second.

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Im not sure what your question is? Are you asking if humans have contributed to global warming?

The angle of inclination is 25.92°. The gravitational force is equal and opposite to the force component parallel to the inclined surface on a block placed on an inclined surface.

We can find the angle of inclination by using this information. This can be illustrated with the following formula;

mg sin θ = f

Here, m = Mass of car = 1,000 kg

g = acceleration due to gravity = 9.8 ms⁻²

sin θ = Opposite / Hypotenuse

= Height / Length

f = Force component parallel to slope

= Weight × sin θ

= mg sin θ

We'll need to utilize the following data:

Initial velocity, u = 27 m/s

Displacement, S = 85 m

Acceleration, a = -9.8 m/s²

By using the kinematic equation of motion, the time it takes to travel up the slope can be calculated;

v² = u² + 2as,

Where, v = Final velocity = 0 m/s

u = Initial velocity = 27 m/s

a = Acceleration = -9.8 m/s²

s = Displacement = 85 m.

After calculating for t, we can use this time value to calculate the angle of inclination by utilizing the aforementioned formula.

mg sin θ = f

Here, m = 1,000 kg,

g = 9.8 ms⁻²,

f = mgsinθsinθ = f / mg.

Now, solve for f, f = ma

Therefore, f = 1,000 kg × 9.8 m/s² × sin θ

The angle of inclination can now be calculated:

sinθ = f / mg

= 1,000 kg × 9.8 m/s² × sin θ / 1,000 kg × 9.8 m/s²

= sin θ= (u² - v²) / 2as

= (27 m/s)² / 2(-9.8 m/s²)(85 m)

= 25.92°

Therefore, the angle of inclination is 25.92°.

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