What’s wrong with this picture ? ..(a group of musicians having a concert on the moon in space

Answer:

atoms and neutrons

Explanation:

electrons have a negative charge

protons have a positive charge

cations are positive ions

anions are negative ions

Answer:We have: K.E. = 1/2 mv²

Here: m = 3 Kg

v = 6 m/s

Substitute their values,

K.E. = 1/2 * 3 * 6²

K.E. = 1/2 * 3 * 36

K.E. = 54 J

In short, Your Answer would be 54 Joules

/jaydenolnger1988 is right!

The fatal flaw in Copernicus' heliocentric model was his assumption that the planets move in perfectly circular orbits around the Sun. Copernicus proposed that the planets move in circular paths called epicycles, which were themselves moving along larger circles around the Sun.

The fatal flaw in Copernicus' heliocentric model was his assumption that the planets move in perfectly circular orbits around the Sun. However, in reality, the planets do not move in perfect circles but rather in elliptical orbits around the Sun. This elliptical shape of planetary orbits was later described by Johannes Kepler's laws of planetary motion. Copernicus' reliance on circular orbits led to inaccuracies in predicting the exact positions of the planets.

Additionally, Copernicus' model still retained some elements of the geocentric model, such as the assumption that the planets move at a uniform speed throughout their orbits. However, Kepler's laws later demonstrated that the planets actually move at varying speeds, with their orbital velocities changing as they move closer to or farther away from the Sun.

These inaccuracies in the assumed circular orbits and uniform speeds of the planets in Copernicus' model prevented it from accurately predicting the observed positions of the planets. It wasn't until Kepler's laws and the adoption of elliptical orbits that a more precise model of the solar system was developed.

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Magnetic field lines always travel from the north pole of a magnet to its south pole. This means that the magnetic field lines always form closed loops that start from the north pole, curve around the magnet.

A magnet's magnetic field lines constantly go from its north pole to its south pole. These lines are used to represent a magnetic field, which is an area in space where magnetic forces are present, and their strength. The alignment of the magnet's north and south poles determines the path of the magnetic field lines. The magnetic fields of two magnets interact when they are brought close to one another, and the field lines change to reflect this interaction. A key idea in physics, magnetic field lines are used to explain a variety of phenomena, including the operation of electric motors, generators, and compasses.

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Answer:

1.47 s

Explanation:

From the question,

s = 2d/t................... Equation 1

s = speed of sound in air, d = distance between the boy and the hill, t = time to hear the echo.

make t the subject of the equation

t = 2d/s............... Equation 2

Given: d = 250 meters

Constant: s = 340 m/s

Substitute these values into equation 2

t = (2×250)/340

t = 500/340

t = 1.47 s

The probability of an outcome is always expressed as a ratio between that outcome's "measure" and the total number of conceivable outcomes. This measurement is frequently determined solely by counting, which is especially straightforward in situations where all possible outcomes are equally likely.

They explain how planets move in elliptical orbits with the Sun as their point of focus, how they cover the same amount of space in a given length of time regardless of where they are in their orbit, and how their orbital periods are proportional to the size of their orbits (its semi-major axis).

Kepler: While Copernicus correctly noticed that the planets revolved around the Sun, Kepler was the one who gave their orbits a precise definition. At the age of 27, Kepler started working as Tycho Brahe's assistant, a wealthy astronomer who asked him to define Mars' orbit.The cube of a planet's semi-major axis is directly proportional to the square of its time period of revolution around the sun, according to Kepler's law of periods.

Therefore the correct answer is option b ) kepler's laws of planetary motion .

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Answer:

Red, orange, yellow, green, cyan, blue, violet.

Explanation:

As we know that the energy of every photon of light directly depends on the size of the wavelength. As short as the wavelength would be as greater the energy delivered by each photon of light would be. Thus, the colors displayed in the visible electromagnetic spectrum would include 'red, orange, yellow, green, cyan, blue, violet' with different wavelengths.

Given :

An object with weight 20 N was lifted to 0.5 meters.

To Find :

How high must you lift a 25 Newton book for it to have the same increase in potential energy as the given book.

Solution :

Since both have same potential energy :

\(P.E_2 = P.E_1\\\\W_2h_2 = W_1h_1\)

Putting all given values in above equation :

\(25h_2 = 20\times 0.5\\\\h_2 = \dfrac{20\times 0.5}{25}\\\\h_2 = 0.4\ m\)

Therefore, book with same potential energy is at a height of 0.4 m.

Answer:

Jump from tallest building (Burj Khalifa) without any protection kit.

Answer: Ide

Explanation:

Just got it right on the quiz

Answer:Ide

Explanation: thats the answer for a pex

The fundamental niche of a species can include I. the amount of sunlight available, II. the presence of competitors, and III. the amount of naturally occurring viruses.

The fundamental niche is the range of environmental conditions under which a species can survive, grow, and reproduce without competition. The amount of sunlight available is an essential factor as it influences photosynthesis for plants and plays a role in temperature regulation, affecting the habitats of many organisms. In contrast, the presence of competitors is not part of the fundamental niche, as it relates to the realized niche, which is the actual niche that a species occupies, considering competition and other factors.

The amount of naturally occurring viruses can be included in the fundamental niche, as it impacts a species' survival and reproduction rates, limiting its potential range. Thus, while the amount of sunlight and naturally occurring viruses are part of a species' fundamental niche, the presence of competitors relates more to the realized niche. So therefore the correct answer is IV. all above, the amount of sunlight available, the presence of competitors, and the amount of naturally occurring viruses, is the fundamental niche of a species.

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The calculated magnitude of force is 47.04 N. Second Law of Motion by Newton (Force) An object's acceleration is determined by its mass and the force being applied.

All objects on Earth experience weight, or a gravitational pull that is proportionate to their mass and is imposed by the planet's mass. The acceleration that gravity gives to objects falling freely serves as a gauge of its strength. The acceleration of gravity at Earth's surface is approximately 9.8 meters (32 feet) per second every second. The magnitudes of the object's weight and the normal force are equal when the object is resting on a horizontal surface and there are no other vertically acting forces; that is, Therefore, the normal force in this case is 26 N, which is much greater than the box's weight.

F=ma

F= 4.8 * 9.8

=47.04 N

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The magnetic force per meter exerted by one bolt on the other can be determined by calculating the magnetic field strength at a certain distance between the two bolts.

This can be done using the formula for the magnetic field strength, which states that it is proportional to the product of the magnetic field intensity and the distance between the two magnetic poles. Therefore, the closer the bolts are, the stronger the magnetic force per meter will be, it's worth noting that the strength of the magnetic force per meter will also depend on the magnetic properties of the bolts themselves. If the bolts are made of materials that are highly magnetic, then the force between them will be stronger than if they are made of less magnetic materials.

In conclusion, the magnetic force per meter exerted by one bolt on the other can be determined by calculating the magnetic field strength at a certain distance between the two bolts, taking into account the magnetic properties of the bolts themselves.

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Answer:

The answer is 'an equinox'.

The time constant of the circuit can be determined from the formula τ = RC. The values given in the question are R = 4.00 MΩ and C = 3.00 µF. Thus, the time constant is given as:τ = RC = (4.00 × 10^6 Ω) × (3.00 × 10^-6 F) = 12 secondsb. The current in the circuit can be found by using Ohm’s law, which states that I = V/R, where V is the voltage across the circuit.

The voltage across the circuit is 12.0 V, so the current is given as:I = V/R = (12.0 V)/(4.00 MΩ) = 3.00 µAThe charge on the capacitor as a function of time can be found using the formula Q = Qmax (1 - e^(-t/τ)), where Qmax is the maximum charge that can be stored by the capacitor. The maximum charge can be found using the formula Qmax = CV, where V is the voltage across the capacitor.

The voltage across the capacitor is the same as the voltage across the circuit, which is 12.0 V. Thus, the maximum charge that can be stored by the capacitor is:Qmax = CV = (3.00 × 10^-6 F) × (12.0 V) = 36 µCThe charge on the capacitor as a function of time is given as:Q = Qmax (1 - e^(-t/τ)) = (36 µC) (1 - e^(-t/12)).

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Answer:

The answer is high

Explanation:

I just took the test :))

Higher frequency and higher pitch are produced by sounds with shorter wavelengths. So, long waves sound low and short waves sound high.

Physical characteristics of waves, such as transmission, reflection, polarization, diffraction, and refraction, are examples of wave attributes.

Waves are described mathematically using terms like wavelength, frequency, and amplitude.

Sound and light are two examples of common waves we encounter. Whether you're discussing waves or vibrations.

All of them may be classified according to the following four factors: amplitude, wavelength, frequency, and speed.

According to the graph, pitch perception is influenced by tone strength; below 1000 Hz, pitch tends to decrease with increasing loudness, and beyond 1000 Hz, pitch tends to increase.

Therefore, high pitch that is heard when waves are closely spaced together.

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The sympathetic and parasympathetic nerve pathways are two divisions of the autonomic nervous system. These pathways are responsible for regulating involuntary functions such as heart rate, digestion, and respiratory rate.

In order for these pathways to function, a stimulus is needed to trigger a response. This stimulus can be internal or external. Once the stimulus is detected, a nerve impulse is sent through a sensory neuron to the central nervous system where it is processed by an interneuron.

The processed signal is then sent through a preganglionic motor neuron to either a chain ganglia or cranial nerve ganglia, depending on the location of the effector organ. From here, the signal is transmitted to a postganglionic motor neuron which sends the signal to the effector organ. The effector organ then responds to the signal, either increasing or decreasing its activity depending on the pathway that is activated.

Here is a diagram that shows the direction of the nerve impulse along the pathway:
[Insert diagram here]
To help you understand the pathway of the nerve impulse, here are some pictures and titles that describe each step of the process:

1. Stimulus Detection: This image shows an example of an external stimulus being detected by a sensory neuron.

2. Interneuron Processing: This image shows an interneuron in the central nervous system processing the signal received from the sensory neuron.

3. Preganglionic Motor Neuron: This image shows a preganglionic motor neuron sending the signal to the chain or cranial nerve ganglia.

4. Postganglionic Motor Neuron: This image shows a postganglionic motor neuron transmitting the signal to the effector organ.

5. Effector Organ Response: This image shows the effector organ responding to the signal received from the postganglionic motor neuron.

Now, for the reactions to the motor impulse. The sympathetic and parasympathetic pathways have different effects on the effector organs. Here are three possible reactions for each pathway:

Sympathetic Pathway:
1. Increase in heart rate
2. Dilated pupils
3. Decrease in saliva production

Parasympathetic Pathway:
1. Decrease in heart rate
2. Constricted pupils
3. Increase in saliva production.

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The terminal speed of the wooden sphere when falling through air is 54.76 m/s

The terminal speed of the wooden sphere when falling through air is,

\(V_{t}\) = (2mg/ρ\(_{air}\) A C\(_{d}\))^\(^{\frac{1}{2} }\)

\(V_{t}\) = (2ρ\(_{sphere}\) \(V_{sphere}\) g/ρ\(_{air}\) A C\(_{d}\))^\(^{\frac{1}{2} }\)

\(V_{t}\) = (2ρ\(_{sphere}\) (4/3 π \(r^{3}\))g/ρ\(_{air}\) π \(r^{2}\) C\(_{d}\))^\(^{\frac{1}{2} }\)

\(V_{t}\) = (8ρ\(_{sphere}\) r g/3ρ\(_{air}\) C\(_{d}\))^\(^{\frac{1}{2} }\)

\(V_{t}\) = ({8×(0.810 g/\(cm^{2}\))×(8.50 cm) × (980 cm/\(s^{2}\))} /{3×(1.20 Kg/\(m^{3}\)× \(\frac{1000 g}{1 Kg}\)×\(\frac{1m^{3} }{10^{6} cm^{3} }\))×(0.500)})^\(^{\frac{1}{2} }\)

\(V_{t}\) = 5476.13002 cm/s

\(V_{t}\) = 54.76 m/s

An object's terminal velocity is its top possible speed as it plunges through a liquid (air is the most common example). It happens when the item is subjected to a downward force of gravity (FG) equal to the total of the drag force (Fd) and buoyancy. Since there is no net force acting on the item, there is no acceleration.

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Explanation:

Time taken by Beetle A = Distance/Speed = 34.0 cm / 2.49 mm/s = 13654.62 ms = 13.65 s

Time taken by Beetle B = Distance/Speed = 34.0 cm / 4.55 mm/s = 7472.53 ms = 7.47 s

Since Beetle A has a 5.0-cm head start, it finishes the race in 13.65 s, but Beetle B only runs for 13.65 s - 7.47 s = 6.18 s.

Now, we can calculate the distance between the beetles at the end of the race:

Distance covered by Beetle A = 2.49 mm/s x 13654.62 ms = 34.0 cm + 2.49 mm/s x 5.0 cm = 35.72 cm

Distance covered by Beetle B = 4.55 mm/s x 6.18 s = 2.81 cm

So the separation distance between the beetles at the end of the race is:

35.72 cm - 2.81 cm = 32.91 cm = 329.1 mm

Therefore, the separation distance between the beetles when the first beetle reaches the end of the box is 329.1 mm.

Answer:

5 meters per second

explanation

sana po makatulong

Answer:

False, it travels left.

Explanation:

Hello.

In this case, we can answer this with an example. If we have 200 g and we want that value in a larger unit, for instance, kilogram, the following conversion is performed since 1 kg equals 1000 g:

\(200g*\frac{1kg}{1000kg}=0.200g\)

Whereas we needed to move the decimal point from right to left, which means that it travels left, that is why the statement is false.

Best regards.

The inductance of the solenoid is 0.0015721 H, indicating its ability to store magnetic energy.The time constant of the circuit, considering the series connection with a 2.5-ohm resistor, is 0.00062884 s.

The following formula can be used to express The inductance of a solenoid:

L = (μ₀ * N² * A) / l

where L is the inductance, μ₀ is the permeability of free space (4π x 10⁻⁷T·m/A), N is the number of turns, A is the cross-sectional area, and l is the length of the solenoid.

Given that the solenoid has 510 turns, a radius of 8 mm (0.008 m), and an overall length of 14 cm (0.14 m), we can calculate the inductance:

A = π * r² = π * (0.008 m)² ≈ 0.00020106 m²

L = (4π x 10⁻⁷ T·m/A) * (510 turns)² * 0.00020106 m² / 0.14 m ≈ 0.0015721 H

Therefore, the inductance of the solenoid is approximately 0.0015721 H.

To calculate the time constant (τ) of the circuit, we can use the formula:

τ = L / R

where R represents the circuit resistance.

Given that the solenoid is connected in series with a 2.5 ohm resistor, the time constant is:

τ = 0.0015721 H / 2.5 ohm ≈ 0.00062884 s

Therefore, the time constant of the circuit is approximately 0.00062884 seconds.

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Explanation:

Generally, stream flows are measured in CFS   = Cubic Feet per Second

If the theory that novae occur in close binary systems is correct, then novae should show a higher frequency in regions with higher densities of binary stars.

Novae occur when a white dwarf in a binary system accretes matter from its companion star, causing a thermonuclear explosion on the surface of the white dwarf. Therefore, if this theory is correct, novae should be more common in binary star systems where there is a close companion star to provide the necessary accretion. Single stars do not have a close companion to provide such accretion, and therefore novae should be less common in single star systems.

Novae are thought to occur in close binary systems, where one star (typically a white dwarf) is drawing material from its companion star. As this material accumulates on the white dwarf's surface, it can ignite and cause a thermonuclear explosion, resulting in the brightening of the system known as a nova. If this theory is correct, we should expect to see a higher frequency of novae in regions where there are more binary star systems.

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Answer:

D

Explanation:

i do not know how to explain my answer