What is a cutoff frequency? O The frequency at which a device stops operating O The threshold between good and poor frequencies The value at which a filter 'takes effect' and begins to attenuate frequencies O A frequency either above or below a circuit's power output O The frequency at which a device can no longer receive a good connection
If we want to filter out noise at 120Hz and keep a signal at 10Hz, what kind of filter would be the best choice to use? O low-pass filter O high-pass filter O band-pass filter O band-stop filter

Answer:

We define a vector as an object with a length and a direction.With no length, the zero vector is not pointing in any particular direction, so it has an undefined direction.

Explanation:

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Magellan could not use Polaris for navigation in the Southern Hemisphere because it is not visible from that region.

Polaris, also known as the North Star, has been used for navigation by explorers in the Northern Hemisphere. However, when Magellan sailed to the Southern Hemisphere, he could not use Polaris for navigation.

Polaris is located very close to the North Celestial Pole, which means it appears to be almost directly above the Earth's North Pole. As a result, when navigating in the Northern Hemisphere, Polaris remains relatively fixed in the night sky, providing a reliable point of reference for determining north.

In the Southern Hemisphere, however, Polaris is not visible. This is because it is located close to the Earth's North Pole, and the South Celestial Pole does not have a bright star comparable to Polaris. Navigators in the Southern Hemisphere must rely on other celestial objects, such as the Southern Cross or specific constellations, to determine their direction.

Therefore, Magellan could not use Polaris for navigation in the Southern Hemisphere because it is not visible from that region.

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The physical state of matter depends upon the amount of: energy

The physical state of matter, whether it is solid, liquid, or gas, depends upon the amount of energy it possesses. The state of matter is determined by the balance between the attractive forces between particles and the kinetic energy of the particles.

In a solid state, particles are closely packed and have low kinetic energy. The attractive forces between particles are strong, holding them in a fixed position.

In a liquid state, particles have more kinetic energy, allowing them to move and flow past each other. The attractive forces are still present but not as strong as in a solid.

In a gas state, particles have high kinetic energy, and the attractive forces between particles are relatively weak. The particles move freely and independently, filling the entire container.

By adding or removing energy, such as heat, to a substance, its particles gain or lose kinetic energy, leading to a change in the physical state of matter. Therefore, the amount of energy determines whether a substance exists as a solid, liquid, or gas.

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The normal force on the box due to the floor is Fg.

option B is the correct answer.

The normal force on the box due to the floor is determined by applying Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.

The downward force of the weight of the box is equal to the upward or normal force of the box due to the reaction of the floor.

The normal force on the box due to the floor is calculated as follows;

Fn = mg cosθ

where;

The angle of inclination of the box = 0

Fn = mg cos(0)

Fn = mg

Fn = Fg = W

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Answer:

I would wanna meet juice if he was still alive ofc

Explanation:

The energy lost is (e) heat. Allen's Rule applies to (b) warm-blooded species. The law stating energy cannot be created or destroyed is (a) the first law of thermodynamics.

In a trophic ladder, the form of energy lost in great quantities at every step is heat. This is due to the inefficiency of energy transfer between trophic levels, as some energy is lost as heat through respiration and metabolic processes.

Allen's Rule applies to warm-blooded species, as it states that animals in colder climates will have shorter limbs and extremities to minimize heat loss, while those in warmer climates will have longer limbs to dissipate heat more effectively. The first law of thermodynamics states that energy cannot be created or destroyed; it can only be changed from one form to another, making it the correct law in the context of the question.

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Answer:

if sams answer is yes that they can have a child who is a non-taster then your answer is yes

Explanation:

if both parents are heterozygotes, 25% of their children can be nontaster.

The minimal energy of photons that can be absorbed at the edges of the visible radiation range is approximately 3.11 eV for violet light and 1.77 eV for red light.

The edges of the visible radiation range are typically defined by the wavelengths of approximately 400 nm (violet) and 700 nm (red). To calculate the minimal energy of photons that can be absorbed at these edges, we can use the energy-wavelength relationship for photons:

\(\[ E = \frac{hc}{\lambda} \]\)

where \( E \) is the energy of the photon, \( h \) is the Planck's constant\((\( 6.626 \times 10^{-34} \, \text{J s} \))\) , \( c \) is the speed of light \((\( 3.00 \times 10^{8} \, \text{m/s} \)\)), and \(\( \lambda \)\)is the wavelength of the photon.

First, we convert the wavelength values to meters:

\(\( \lambda_{\text{violet}} = 400 \, \text{nm} = 400 \times 10^{-9} \, \text{m} \)\( \lambda_{\text{red}} = 700 \, \text{nm} = 700 \times 10^{-9} \, \text{m} \)\)

Now, we can calculate the minimal energies:

\(\( E_{\text{violet}} = \frac{hc}{\lambda_{\text{violet}}} \)\( E_{\text{red}} = \frac{hc}{\lambda_{\text{red}}} \)\)

Substituting the values:

\(\( E_{\text{violet}} = \frac{6.626 \times 10^{-34} \, \text{J s} \times 3.00 \times 10^{8} \, \text{m/s}}{400 \times 10^{-9} \, \text{m}} \)\)

\(\( E_{\text{red}} = \frac{6.626 \times 10^{-34} \, \text{J s} \times 3.00 \times 10^{8} \, \text{m/s}}{700 \times 10^{-9} \, \text{m}} \)\)

Calculating these values:

\(\( E_{\text{violet}} \approx 4.97 \times 10^{-19} \, \text{J} \)\)

\(\( E_{\text{red}} \approx 2.83 \times 10^{-19} \, \text{J} \)\)

Finally, to convert the energies to electron volts (eV), we use the conversion factor:

\(\( 1 \, \text{eV} = 1.602 \times 10^{-19} \, \text{J} \)\)

Converting the energies:

\(\( E_{\text{violet}} \approx \frac{4.97 \times 10^{-19} \, \text{J}}{1.602 \times 10^{-19} \, \text{J/eV}} \approx 3.11 \, \text{eV} \)\)

\(\( E_{\text{red}} \approx \frac{2.83 \times 10^{-19} \, \text{J}}{1.602 \times 10^{-19} \, \text{J/eV}} \approx 1.77 \, \text{eV} \)\)

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Answer:

μ=1/5=0.2

Explanation:

using the formula

Fs=Fn*μ

Where

Fs is the static force

Fn = Normal force

μ= coefficient

so if Fn=25n

and it requires 5 n to start moving, means the max Fs is 5n

5=25μ

μ=5/25

μ=1/5=0.2

When activated, an emergency locator transmitter (ELT) transmits on 121.5 and 406 MHz.

121.5 MHz was the international standard emergency frequency for aviation until 2009, when its use was discontinued due to its high false alarm rate. However, ELTs are still required to transmit on this frequency as a backup in case the primary frequency, 406 MHz, is not monitored by search and rescue authorities.

406 MHz is the primary frequency used for satellite-based search and rescue operations. When an ELT is activated, it sends a distress signal on this frequency, which is received by satellites in orbit around the Earth. The satellites relay the signal to a ground station, which then alerts search and rescue authorities to the distress signal and the location of the ELT.

In summary, an emergency locator transmitter (ELT) transmits on both 121.5 MHz and 406 MHz when activated, with 406 MHz being the primary frequency used for satellite-based search and rescue operations and 121.5 MHz used as a backup.

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Answer:

this is the answer the required questions

hope you like this

The kinetic energy is calculated by work done, The work done is equal to the change in kinetic energy when the object is at rest.

Kinetic energy (KE) is calculated using the formula:

KE = (1/2) × mass × velocity²

However, if you don't have the velocity value, it is not possible to calculate the kinetic energy accurately. Velocity is a crucial component in determining kinetic energy because it quantifies the object's speed and direction of motion.

But there is a special case when the object is at rest the change in velocity is equal to the work done.

Therefore, The kinetic energy is calculated by work done, The work done is equal to the change in kinetic energy when the object is at rest.

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Answer:

Potential, tell me if that's wrong, and sorry if its wrong.

Explanation:

The orientation of the compass needle  suggests that the magnetic field lines point away from the north pole of a magnet and toward its south pole.

If you place a compass near the north pole of a magnet, the north pole of the compass needle will be repelled and point away from the magnet.

This is because a compass needle is made of a magnet, and the needle is always pointing to the geographic north of Earth.

So when a compass is brought near a magnet, the needle will be attracted if it is in direct contact with the south pole of the magnet and it will be repelled if it is in direct contact with the north pole of the magnet.

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Answer:

D.  A record of all the physical activity you complete in one week.

Explanation:

A "Fitness Log" allows you to keep track of your workout or exercise. Therefore, it is a record of the different workout you've managed to complete within a time frame. It gives you several information such as the type of workout you've completed, its duration and the time of the day it was performed. This makes a person motivated to exercise because he can see his progress. He may also include his mood before and after workout in order to become more mindful in exercising and many other things.

Answer:

the answer is D  i just got the answer right

Explanation:

Answer:

A microwave with a frequency of 5*10¹⁰ hertz has a period of 2*10⁻¹¹ seconds.

Explanation:

Frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).

The period is the time that elapses between the emission of two consecutive waves. In other words, it is the time it takes for a complete wave to pass a reference point. The period (T) is simply the inverse of the frequency (f):

\(T=\frac{1}{f}\)

In this case, f=5*10¹⁰ Hz. So, replacing in the definition of period T:

\(T=\frac{1}{5*10^{10} Hz }\)

Solving:

T= 2*10⁻¹¹ seconds

A microwave with a frequency of 5*10¹⁰ hertz has a period of 2*10⁻¹¹ seconds.

A microwave with a frequency of 5*10¹⁰ hertz has a period of 2*10⁻¹¹ seconds.

The fequency is defined as the number of cycles achieved by the any wave it is expressed in hertz.

Frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).

The period is the time that elapses between the emission of two consecutive waves. In other words, it is the time it takes for a complete wave to pass a reference point. The period (T) is simply the inverse of the frequency (f):

\(T=\dfrac{1}{f}\)

In this case, f=5*10¹⁰ Hz. So, replacing in the definition of period T:

\(T=\dfrac{1}{5\times 10^{10}}=2\times 10^{-11}\ Sec\)

A microwave with a frequency of 5*10¹⁰ hertz has a period of 2*10⁻¹¹ seconds.

Thus a microwave with a frequency of 5*10¹⁰ hertz has a period of 2*10⁻¹¹ seconds.

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Answer:

friction

air drag

every thing that opposes the motion affects kinetic energy

Explanation:

kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest

potential energy ∝ 1/(kinetic energy)

as kinetic energy increases potential energy decreases

\( \huge \boxed {\mathfrak{ \color{gold}Answer ࿐ }}\)

The wave having the lowest frequency is :

=》A. (a)

The red paint will appear no colour when it is illuminated with pure blue light.

Thus, we can conclude that the red coloured object appears colourless as it is illustrated by pure blue light.

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The maximum height reached by the Tambora volcano after the eruption is 19,929.85 m.

The maximum height reached by the Tambora volcano is calculated by applying the following kinematic equation as shown below;

v² = u² - 2gh

where;

at maximum height, the final velocity, v = 0

0 =  u² - 2gh

2gh = u²

h =  u²/2g

h = (625²) / (2 x 9.8)

h = 19,929.85 m

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Answer:

14:30:00

Explanation:

because the speed of propagation of seismic waves is at 500

Answer:

Mars is an opportunity for humans to carry forward the light of consciousness, plus it is the closest planet like earth, it has land humans can land on and although its small, theres still water

Answer:

The average densities of both matches the expected density for objects made from water ice.

Explanation:

Charon's density is 1.2 to 1.3 g / cm3, while Pluto's density is 1.8 to 2.1 g / cm3. This was discovered in many researches and measurements of these two celestial bodies, with the objective of understanding them and promoting efficient scientific knowledge.

With the measurements of the average densities between pluto and Charon it was possible to conclude several statements about them. Firstly, it is possible to see that the two formed independently and at different times, in addition to indicating the existence of few rocks in charon, which is consistent with the average density of objects made mostly of water ice.

Answer:

D. All of the above

Explanation:

Because it's the most logical answer.

This question involves the concepts of potential difference, inductance, and current.

The minimum time that should be allowed for the current to change is "0.694 ms".

The inductance of an inductor is given by the following formula:

\(E=L\frac{\Delta I}{\Delta t}\\\)

where,

E = potential difference across the inductor = 360 volts

L = inductance of the inductor = 250 mH = 0.25 H

ΔI = change in current = 2.5 A - 1.5 A = 1 A

Δt = time required = ?

Therefore,

\(\Delta t = \frac{(0.25\ H)(1\ A)}{360\ volts}\)

Δt = 6.94 x 10⁻⁴ s = 0.694 ms

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Answer:

función sinusoidal

Explanation:

En un circuito de CA, la corriente y el voltaje tienen un voltaje máximo y mínimo. A intervalos regulares, la corriente y el voltaje invierten la dirección y cambian su magnitud continuamente con el tiempo.

Por lo tanto, para representar la corriente y el voltaje en un circuito de CA, se utiliza una función sinusoidal. Una función seno es una función continua con oscilaciones periódicas.

Answer:

9882.516J

Explanation:

49kg*9.8m/s2*2.1m=9882.516 J