How do astronauts overcome this obstacle when communicating in space.
Answers
Astronauts use communication systems and protocols like video conferences, radios, and hand signals to overcome the obstacle of communicating in space.
Communication is crucial in space exploration because communication delays and interruptions can be life-threatening. When astronauts are out of the spacecraft, they need communication devices that work without Earth-based infrastructure. One solution is to use radio communication equipment.
The most common method is to use a protocol for communication called "voice loops" that involves flight controllers, spacecraft crew, and ground stations. These voice loops ensure that all communications are heard by everyone involved. Apart from the voice loops, astronauts can use videoconferencing software to see and hear each other. In the International Space Station, astronauts can use radios that operate on the VHF (Very High Frequency) and UHF (Ultra High Frequency) bands to communicate with each other or to ground controllers.
Astronauts also use hand signals to communicate while wearing space gloves or when they are outside of the spacecraft. They also rely on nonverbal cues and use gestures to communicate with each other. These communication systems and protocols help astronauts to communicate and overcome the obstacles of communication in space.
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Related Questions
an engr/phys 216 student wants to measure the rotational speed of their grandfather's vinyl record player. to do this, they bring the player into zach 398, attach green, orange, and yellow stickers to the system, and record the data shown in the table below. using a backward finite difference, what is the angular velocity in rad/s of the record player at time 0.3 seconds?
Answers
The angular velocity of the record player at time 0.3 seconds is approximately 20.3 rad/s.
To find the angular velocity, we can use the backward finite difference method which calculates the slope of the data points. The formula for backward finite difference is:
f'(t) ≈ (f(t) - f(t-Δt)) / Δt
Using the data provided in the table and plugging it into the formula, we get:
ω(0.3) ≈ (θ(0.3) - θ(0.2)) / (0.1s) ≈ (2.06 - 1.96) / 0.1 ≈ 1 rad/s
However, this only gives us the instantaneous angular velocity at time 0.3 seconds. To find the average angular velocity over the entire time interval, we can take the average of the angular velocities at 0.2 and 0.3 seconds:
ω_avg ≈ (ω(0.2) + ω(0.3)) / 2 ≈ (19 + 22.6) / 2 ≈ 20.8 rad/s
Therefore, the angular velocity of the record player at time 0.3 seconds is approximately 20.3 rad/s.
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Surface winds and upper-level winds blow in the same direction in a thermal circulation. T or F?
Answers
False. In a thermal circulation, surface winds and upper-level winds blow in opposite directions.
This is because a thermal circulation is driven by the temperature difference between the surface and the upper atmosphere, and this temperature difference creates a pressure gradient force that drives the air from high pressure at the surface to low pressure aloft.
The resulting surface winds blow towards the low-pressure area, while the upper-level winds blow away from it. This creates a circulation cell in which warm air rises, cools, and sinks back down to the surface, completing the cycle.
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A car is moving with a constant speed of 15 meters per second. What total
distance does the car travel in 90 seconds?
Answers
Answer:
1350 meters
Explanation:
this is easy
15 meters per second
90 seconds
90 * 15 = 1350
An ambulance emits a frequency of 450 Hz from its siren. What frequency is heard by a man as the ambulance moves toward him? less than 450 Hz more than 450 Hz 450 Hz 0 Hz.
Answers
Frequency is defined as the number of repetitions of waves occurring in 1 second. The frequency heard by the man as the ambulance move toward him will be greater than 450 Hz.
What is the frequency ?Frequency is defined as the number of cycles completed in 1 second. Frequency is given by the formula as,
\(\rm{Frequency =\frac{1}{time } }\)
As the formula shows frequency is inversely proportional to the time that shows if the time is decreasing frequency will increase and vice versa.
In the above case, the ambulance is moving toward the men. So that the time to meet up is decreased that's why the frequency will be greater than the initial frequency from the siren.
Hence the frequency heard by the man as the ambulance move toward him will be greater than 450 Hz.
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Answer: the answer is b more than 450 hz
Explanation: i took the test
Thanks for helping!!!------>
a 15.3 g bullet moving with a speed of 372 m/s. Answer in units of kg · m/s.
Answers
Answer:
56.916 kg m/s
Explanation:
Convert g to kg 15.3 g = .153 kg
.153 kg * 372 m/s = 56.916 kg*m/s
What does it mean when we describe the current classification system for mental disorders as a multiaxial system?
Answers
The multiaxial system was a classification system used in the previous edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) published by the American Psychiatric Association.
However, it's important to note that the DSM-5, the most recent edition of the manual, released in 2013, abandoned the multiaxial system.In the previous multiaxial system, mental disorders were evaluated and described on multiple axes, or dimensions, to provide a comprehensive understanding of an individual's mental health. Each axis represented a different aspect of the individual's functioning, and clinicians would assess and diagnose the person accordingly.
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A person rides in an elevator.
What is the equal and opposite force for the force of the elevator floor pushing up on the person as described by Newton's third law?
Answers
The equal and opposite force for the force of the elevator floor pushing up on the person as described by Newton's third law is the weight and the reaction force from its effect.
What is an Elevator?This is referred to as a device which is used in the vertical transportation of goods and people among the floors in a buildings.
When an individual steps into the elevator, the weight acts on it and it is known as a downward force while the reaction acts upward in an opposite reaction as described by Newton's third law in this scenario.
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what does the geocentric model of the solar system look like
Answers
Which is the best description of a balanced diet?[food pyramid]
A. A vegetarian diet that includes no meat
B. A diet that consists of fewer than 2,000 calories per day
C. A diet that includes a wide variety of nutritious foods
D. A diet in which you eat at most three times a day
Answers
Answer:
A vegetarian diet that includes no meet is the best description of a balanced diet
Answer:
I should be B
Explanation:
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__________ receptors detect presence of acids in substances, whereas __________ receptors detect sodium in substances. a. sour . . . salt b. sweet . . . bitter c. bitter . . . salt d. sweet . . . sour please select the best answer from the choices provided a b c d
Answers
The correct option is A.
Sour receptors help in the detection of the presence of acids in substances, whereas salt receptors help in the detection of sodium in substances.
A sour type of taste is considered as a quality of primary task that makes an innate rejection type of response in humans as well as in many other animals. Generally, Acidic stimuli are certain unique sources of a sour taste as whenever a rejection response might serve a discouragement of ingestion of foods which is spoiled by microorganisms that produce acids. The mechanisms by which an acid excites receptor cells of taste (TRCs) are actually complicated by the variability of wide species and are within species that are apparently different kinds of mechanisms for the case of strong and weak acids in substances.
The presence of epithelial sodium channels mediates the mechanism of salt taste. Usually, these receptors are open, and whenever foods are ingested with a high concentration of salt, sodium starts to flow into the cell which causes depolarization. This change occuring in the membrane potential then opens to voltage-gated sodium as well as calcium channels. The calcium influx is in an increased state that causes releasing of serotonin which is filled by vesicles. The serotonin aids in the acting of afferent taste as by axon which causes depolarization and action potentials.
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what sort of human activity do you think is contributing the the increased bc carbon dioxide
Answers
The sort of human activities that are contributing to the increase in carbon dioxide is industrial activities, forest cutting, cars, and vehicles.
What is climate change?Natural processes such as organism respiration, decomposition, volcanic eruptions, and weathering of carbonated rocks all contribute to an increase in atmospheric carbon dioxide levels.
The manufacturing of cement and other man-made materials, along with urbanization, deforestation, and changes in vegetation patterns that alter the reflectance of the earth's surface, are increasing atmospheric carbon dioxide levels.
Therefore, industrial operations, logging, cars, and other vehicles are the kinds of human activities that are causing an increase in carbon dioxide.
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The unit we use to measure speed is
Answers
Answer:
However, to mention a few, there are other units of speed such as meters per second, feet per second, light-years per millennium, and knots. Feet per second, but specially meters per second are usually used to measure speed of animals, humans, and free fall objects. Knots is used to measure the speed of ship and/or boats.
Explanation:
Thymine is used in DNA despite the fact that it is energetically more expensive to synthesize than uracil because
A) spontaneous deamination reactions convert cytosine to uracil at a fairly high rate.
B) uracil is more sensitive to ultraviolet (UV) damage.
C) uracil is more susceptible to depurination.
D) uracil can only bind with ribose, not deoxyribose.
E) thymine is less likely to undergo spontaneous deamination than uracil.
Answers
Thymine is used in DNA instead of uracil because thymine is less likely to undergo spontaneous deamination than uracil. Option E.
Spontaneous deamination is a process in which an amino group is removed from a nitrogenous base, which can lead to changes in the base-pairing properties of DNA.
Uracil is more susceptible to spontaneous deamination than thymine, which can lead to mutations in the DNA sequence. Therefore, the use of thymine instead of uracil in DNA helps to maintain the stability and fidelity of the genetic code.
While thymine is energetically more expensive to synthesize than uracil, the benefits of using thymine in DNA outweigh the costs.
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You are running late to school and need to go 1,500 m in 10 minutes. What speed will you travel?.
Answers
The required average speed to reach the school will be 2.5 meters per second.
According to the question,
School is still 1500m away and it starts in 10 minutes. We need to determine at what average speed you need to travel to reach the school on time.
What is speed?
Speed is defined as when an object is subjected to move, the distance covered by the object in a certain time interval is the speed of that particular object.
Here it is given,
Distance = 1500m
Time = 10 minutes or 10×60(seconds) = 600 seconds
Speed = distance/time
Speed = 1500/600
Speed = 2.5 meters per second
Thus, the average speed needed to reach the school at a distance of 1500m in 10 minutes will be 2.5 meters per second.
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Analyze why force pairs do not cancel each other
Answers
Answer:
Action and reaction forces don't cancel each other out because they act on separate objects.
Explanation:
Action and reaction forces are always equal in magnitude, so it's not possible to exert more force on an object than it can exert back.
If a chicken has a weight of 300 N on Earth, what would be its weight on Mercury if the gravity is 0.38.
Answers
Answer:
114N
Explanation:
gravity on earth: 10m/s (exact: 9.82)
mass if chicken = 300/10 = 30Kg
weight of chicken on mercury = 3.8 x 30 = 114N (you wrote 0.38 but Mercury's gravity is about 3.7)
Answer:
113.15 g
Explanation:
That's because the planets weigh different amounts, and therefore the force of gravity is different from planet to planet. For example, if you weigh 100 pounds on Earth, you would weigh only 38 pounds on Mercury. That's because Mercury weighs less than Earth, and therefore its gravity would pull less on your body.
A body experience more upthrust on earth than the moon? Justify
Answers
A body experiences more upthrust on Earth compared to the Moon due to the difference in gravitational force between the two celestial bodies.
The upthrust, also known as buoyant force, is a force exerted on an object immersed in a fluid (in this case, air or gas) and is equal to the weight of the fluid displaced by the object.
The gravitational pull of Earth is substantially stronger than that of the Moon, causing the body to displace more liquids. On Earth, the gravitational force is approximately six times stronger than on the Moon. As a result, because it is inversely proportional to the weight of the fluid ejected, the upthrust felt on Earth is greater.
A body will therefore experience more upthrust on Earth than on the Moon.
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Could we see a galaxy that is 20 billion light-years away?.
Answers
Answer:
No
Explanation:
20 billion light-years away are beyond our sight and perspective on Earth and wouldn't be observable in our universe.
The rate at which a cricket chirps, R (in chirps per minute), depends on the temperature of its environment, F (in degrees Fahrenheit). For a specific chick species, this relationship can be modeled by the function R(F) 4F-160. a. Determine R¹(P) and interpret its meaning b. Compute R(60) and R¹(60) and interpret the meaning of each. Compute R (60).
Answers
R(F) = 4F - 160
a. R¹(P) represents the temperature at which a cricket chirps at a rate of P chirps per minute.
b. R(60) refers to the chirping rate of the cricket when the temperature is 60 degrees Fahrenheit, while R¹(60) represents the temperature at which the cricket chirps at a rate of 60 chirps per minute.
What is the relationship between temperature and cricket chirping rate?The equation R(F) = 4F - 160 represents the relationship between the temperature of the cricket's environment (F) and its chirping rate (R). By plugging in different temperature values, we can determine the corresponding chirping rate.
For example, when we calculate R(60), we find the chirping rate at 60 degrees Fahrenheit.
In this case, R(60) = 4(60) - 160 = 240 - 160 = 80 chirps per minute.
On the other hand, when we calculate R¹(60), we are looking for the temperature at which the cricket chirps at a rate of 60 chirps per minute. Solving the equation 60 = 4F - 160, we find F = 70 degrees Fahrenheit. Therefore, R¹(60) = 70.
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Astrology, that unlikely and vague pseudoscience, makes much of the position of the planets at the moment of one’s birth. The only known force that a planet could exerts on us is gravitational, so if there is anything to astrology we should expect this force to be significant.
Calculate the gravitational force, in newtons, exerted on a 4.1 kg baby by a 75 kg father who is a distance of 0.16 m away at the time of its birth.
Calculate the force on the baby, in newtons, due to Jupiter (the largest planet, which has a mass of 1.90 × 1027 kg) if it is at its closest distance to Earth, 6.29 × 1011 m away.
What is the ratio of the force of the father on the baby to the force of Jupiter on the baby?
Answers
The magnitude of the gravitational force is 7×10⁻⁷ N and the magnitude of the gravitational force due to Jupiter is 1.35×10⁻6 N.
Gravitational potential energy is the energy which a body posses because of its position.
The gravitational potential energy of a body is given as,
= G = Fr²/Mm
Here, (m) is the mass of the body, (F) is the gravitational force and (r) is the height of the body.
The mass of baby is 4.20 kg and mass of father is 100 kg. The distance between them is 0.200 m. Put the values in the above formula as:
= 6.67 X 10⁻¹¹ = F (0.200)² / 100 X 4.20
= F = 7 X 10⁻⁷ N
The magnitude of the force on the baby due to Jupiter if it is at its closest distance to Earth, some 6.29×1011 m.
Put the values in the above formula again as:
= 6.67 X 10⁻¹¹ = F (6.29 X 10¹¹)² / 1.9 X 10²⁷ X 4.20
= F = 1.35 X 10⁻⁶ N
Thus, the magnitude of the gravitational force is 7×10⁻⁷ N and the magnitude of the gravitational force due to Jupiter is 1.35×10⁻6 N.
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suppose that two stars are separated in the sky by 0.1 arcsecond. if you look at them with a telescope that has an angular resolution of 0.5 arcsecond, what will you see?
Answers
Only one star will be visible. Two stars are 0.1 arcseconds apart, and you use a telescope with a 1 arcsecond angular resolution to take pictures of them.
At radio frequencies, light pollution is more severe than at visible wavelengths. To improve their effectiveness, modern telescopes employ cutting-edge technology. Another slim triangular relation, b = s/fe, provides the angle as the apparent angular size of the pictures as seen via a magnifying lens. Just 206 * (pixel size) / pixels make up the scale (focal length). If your 30 mm guide scope is f/4, then the focal length would be 120 mm. The pixel scale for a typical guide camera, such as the ASI120MM, which has 3.8u pixels, is 206 * 3.8 / 130 = 6.0 arcseconds/pixel.
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Answer: There'll be just one star to see. You use a telescope with a 1-arcsecond angular resolution to snap photos of two stars that are 0.1 arcseconds apart.
Explanation: Compared to visible wavelengths, light pollution is worse at radio frequencies. The most recent technology is used by modern telescopes to increase their efficacy. The angle is given by another thin triangle relation, b = s/fe, which also gives the apparent angular size of the images when viewed via a magnifying glass. The scale is made up of only 206 * (pixel size) / pixels (focal length). The focal length would be 120 mm if your 30 mm guide scope were to be set at f/4. The ASI120MM guiding camera, which has 3.8u pixels, has a pixel scale of 206 * 3.8 / 130, or 6.0 arcseconds/pixel.
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What are challenges faced by both modern and ancient engineers?
Answers
Answer:
Climate Chrises
Explanation:
What is a force field
Answers
A force field is simply a vector field that describes a non-contact force acting on a particle at various positions in space.
Discussion:
By definition, When a body exerts an influence into the space around itself, we say that the body creates a " field " around itself.
Examples of such forces are:
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mechanical equivalent of heat Do the data for the second part of the experiment support or refute the second hypothesis
Answers
When we state something about the results on the basis whether the observed data supports the original hypothesis, we say that we are concluding the results.
What is the relationship between force and acceleration based on Newton's 2nd law?
Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
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an ac circuit is powering an induction motor the voltage is 240 v and the current draw is 15 a. what is the real power assuming pf = 0.8
Answers
The real power being delivered to the induction motor is 2880 watts or 2.88 kilowatts. This power is the actual power that is being used to drive the motor and perform useful work. It is important to note that in an AC circuit, the power factor can affect the real power being delivered.
The real power can be calculated using the formula: P = V x I x PF, where P is the power, V is the voltage, I is the current, and PF is the power factor. In this case, the voltage is 240 V, the current is 15 A, and the power factor is 0.8. Therefore, the real power can be calculated as follows:
P = 240 x 15 x 0.8
P = 2880 watts
So, the real power being delivered to the induction motor is 2880 watts or 2.88 kilowatts. This power is the actual power that is being used to drive the motor and perform useful work. It is important to note that in an AC circuit, the power factor can affect the real power being delivered. Therefore, it is necessary to consider the power factor when calculating the real power.
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each second, a nuclear power plant generates 2100 mj of heat energy from nuclear reactions in the reactor's core. this energy is used to boil water and produce high-pressure steam at 390 ∘c. the steam spins a turbine, which produces 700 mw of electric power, then the steam is condensed and the water is cooled to 40 ∘c before starting the cycle again. what is the plant's actual efficiency?
Answers
This means that 33% of the energy generated in the nuclear reactions is converted into usable electric power, while the remaining 67% is lost as heat energy.
What is nuclear reaction?
Nuclear reactions were also processes wherein one or even more nuclides are created when an atomic nucleus or pair of atomic nuclei collide with a subatomic particle. The nuclei that undergo nuclear reactions produce different nuclides from those that do not . Nuclear fusion and nuclear fission reactions are two prominent subtypes of nuclear reactions. The former involves a heavy nucleus splitting into two (or even more) lighter nuclei as a result of the absorption of neutrons (or even other fairly light particles) by the heavy nucleus. In nuclear fusion reactions, two pretty light nuclei combine (through a collision) to produce a single, heavier nucleus.
The plant's actual efficiency can be calculated by dividing the output energy (700 MW) by the input energy (2100 MJ):
Efficiency = 700 MW / 2100 MJ = 0.33
This means that 33% of the energy generated in the nuclear reactions is converted into usable electric power, while the remaining 67% is lost as heat energy.
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In the middle of a thunderstorm, a lightning bolt flashes. It takes Roberto 5 seconds to
hear the thunder afterwards. How far is the source of lightning from Roberto? The temperature is 22° C.
Speed of sound at 22°C = ?
d = ?
You will be reported if you didn't answer properly
Answers
Answer:
v = 344.1 m / s
d = 1720.5 m
Explanation:
For this problem we must calculate the speed of sound in air at 22ºC
v = 331 RA (1+ T / 273)
we calculate
v = 331 RA (1 + 22/273)
v = 344.1 m / s
the speed of the wave is constant,
v = d / t
d = v t
we calculate
d = 344.1 5
d = 1720.5 m
achievement and challenges of science and technology explain?
Answers
Science and technology have had a significant influence on society, with both successes and difficulties.
The achievements can be noted as -
Medical Growth - Scientists and medical professionals have been able to create vaccinations, medicines, and surgical techniques thanks to advancements in technology that save millions of lives annually. This covers developments like cancer therapy, organ transplantation, and enhanced medical imaging. Communication Growth - People may now contact and communicate with one another more easily because to developments in communication technology. People may now communicate globally thanks to advancements in communication technologies, like the telephone and the internet.Commutation - Transport has also been enhanced by science and technology, becoming quicker and more effective. This includes technological advancements like electric autos, high-speed trains, and aeroplanes.The challenges can be noted as -
Environmental Degradation - Environmental degradation, including pollution, deforestation, and climate change, has been brought on by the development and usage of technology.Expensive - It may be expensive to develop and adopt new technology, which might put people and communities at a financial disadvantage. This may restrict access to these breakthroughs and worsen already existing inequities.Dependency - Genetic engineering, artificial intelligence, and privacy are just a few of ethical issues that have been brought up by these advancements. It is crucial to consider possible effects of these breakthroughs and make sure they are applied for the benefit of everybody.Read more about science and technology on:
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Danielle took an iron nail and wrapped thin copper wire around it, then connected the ends of the copper wire to a battery. Which force or forces can Danielle's device produce?
Answers
Answer:
yes her device can produce
Explanation:
An electromagnetic force is produced by this setup.
The question suggests the construction of a solenoid with an iron core.I have attached an image. A solenoid has an iron core wrapped around by insulating wires. When the insulating wires are connected to a battery or a voltage source, current flows in the wire and travels through the wrapped region around the iron core. Now, this current produces a magnetic field inside the solenoid, directed along the axis of the solenoid. When the iron core comes under the influence of this magnetic field, it magnetizes and acts as a strong magnet and can produce magnetic force. The force generated through this process is called electromagnetic force.
When the battery is removed, the solenoid returns to its original state, which is it doesn't act as a magnet anymore. By the way, iron retains some magnetization.
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A Mars rover has a mass of 955 kg. What is its weight in Newtons on Mars?
(g on Mars = 3.72 m/s2)
Answers
Answer:
3552.6N
Explanation:
F=mg
=3.72*955
=3552.6N
Answer:
3552.6N
Explanation: