What does putting nuclear forces on high alert mean.
Answers
Putting nuclear forces on high alert means that nuclear weapons are ready for immediate use. Nuclear forces are groups of military units that are equipped with nuclear weapons.
The primary responsibility of nuclear forces is to deter the use of nuclear weapons against the country by other nations.
However, if an attack has been detected, the country's nuclear forces are put on high alert, which means the nuclear weapons are ready for immediate use.
This is done to give a swift and devastating response to any potential nuclear attack.
Nuclear weapons are capable of causing catastrophic damage and loss of life.
Therefore, putting nuclear forces on high alert is a serious decision that is only made in times of extreme threat.
This decision is made by the country's leaders after consulting with military advisors and evaluating the intelligence available to them.
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Related Questions
The Himalayas occur at white type of tectonic plate boundary?
Answers
Answer:
Explanation:
The Himalayan mountain range and Tibetan plateau have formed as a result of the collision between the Indian Plate and Eurasian Plate which began 50 million years ago and continues today. 225 million years ago (Ma) India was a large island situated off the Australian coast and separated from Asia by the Tethys Ocean.
A horse trots at an average velocity of 17 m/s for 8 seconds. How far is the horse displaced?
Answers
speed of horse= 17m/s
total time = 8sec
displacement= velocity * time
=17*8
= 136
Therefore, in 8 sec horse traveled 136m.
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A student performed an investigation into the refraction of light in a transparent material.
The results are shown below:
The angle of refraction of the refracted ray through the material shown is 32o .
Use this information to calculate the critical angle of the transparent material
Answers
The critical angle of the transparent material is 35.3 degrees.
What is the critical angle?The critical angle is the angle of incidence at which the angle of refraction is 90 degrees. In this case, the angle of refraction is 32 degrees. Therefore, the critical angle is calculated as follows:
sin(critical angle) = sin(90 degrees) / sin(angle of refraction)
sin(critical angle) = 1 / sin(32 degrees)
sin(critical angle) = 0.574
critical angle = arcsin(0.574)
critical angle = 35.3 degrees
Therefore, the critical angle of the transparent material is 35.3 degrees.
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a figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg·m2. if the arms are pulled in so the moment of inertia decreases to 1.80 kg·m2, what is the final angular speed?
Answers
Let's recalculate the new angular speed using the correct values.
We can use the conservation of angular momentum principle:
I1 * ω1 = I2 * ω2
Given:
I1 = 2.25 kg · \(\rm m^2\) (initial moment of inertia)
ω1 = 5.00 rad/s (initial angular speed)
I2 = 1.80 kg · \(\rm m^2\) (final moment of inertia)
ω2 = ? (final angular speed)
Substituting the values into the equation:
2.25 kg · \(\rm m^2\) * 5.00 rad/s = 1.80 kg · \(\rm m^2\) * ω2
Rearranging the equation to solve for ω2:
ω2 = (2.25 kg · \(\rm m^2\) * 5.00 rad/s) / (1.80 kg · \(\rm m^2\))
Calculating:
ω2 = 6.25 rad/s
Therefore, the new angular speed of the figure skater with his arms pulled in is 6.25 rad/s.
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What is the weight of a box with a mass of 150 kg on Earth?
N
Use g= 9.81 m/s2 and do not include units in your answer.
Answers
Answer:
W = M g = 150 kg * 9.81 m/s^2 = 1470 N
You were only given 3 significant figures in the question.
The weight of the box is 1471.5 N.
What is weight?In science and engineering, an object's weight is defined as the force of gravity acting on the thing. Weight is sometimes described as a vector quantity in common textbooks, denoting the gravitational force acting on the item.
Given parameters:
Mass of the box, m = 150 kg.
Acceleration due to gravity, g = 9.8 m/s².
Hence, weight of the box is, W = mg = 150 kg × 9.81 m/s² =1471.5 N.
SO, weight of the box with a mass of 150 kg on Earth is 1471.5 N.
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_____ is why the earth's interior is layered
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Answer: The inner core is solid, the outer core is liquid, and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases.
Explanation: I just did a quiz with this question
Astronomers believe that the center of our galaxy has a black hole with enough mass inside to make almost 4 million suns! how do astronomers think a black hole could acquire so much mass?
Answers
The center of our galaxy is a much more crowded region than where the sun is found; we still see material falling toward the center and material has fallen in for billions of years
The Galactic Center (or Galactic Centre) is the rotational center, the barycenter, of the Milky Way galaxy. Its central massive object is a supermassive black hole of about 4 million solar masses, which is called Sagittarius A*, a compact radio source which is almost exactly at the galactic rotational center.
The Galactic Center is approximately 8 kiloparsecs (26,000 ly) away from Earth in the direction of the constellations Sagittarius, Ophiuchus, and Scorpius, where the Milky Way appears brightest, visually close to the Butterfly Cluster (M6) or the star Shaula, south to the Pipe Nebula.
There are around 10 million stars within one parsec of the Galactic Center, dominated by red giants, with a significant population of massive supergiants and Wolf–Rayet stars from star formation in the region around 1 million years ago. The core stars are a small part within the much wider galactic bulge.
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Two astronomers are looking at different supernovae. Supernova Alpha is 8 thousandlight years away. Supernova Charlie is 142 million light years away. Using this infoboth scientist agree thatA. Supernova Charlie is bigger than Supernova AlphaB. Supernova Charlie is more explosive than Supernova Alpha.C. Supernova Charlie formed before Supernova Alpha
Answers
definition of angle of incidence
Answers
find new breakpoints for the data that span only the 0.05 and 0.95 quantiles in r
Answers
The 0.05 and 0.95 quantiles, also known as the 5th and 95th percentiles, respectively, represent the values below which 5% of the data falls and above which 95% of the data falls.
Quantiles are a statistical measure that divide a dataset into equal-sized groups, making it easier to analyze the distribution of the data.
To find new breakpoints for the data that span only the 0.05 and 0.95 quantiles, we need to identify the minimum and maximum values within these quantiles. This can be done by sorting the data in ascending order and then finding the values at the 5th and 95th percentiles.Once we have identified the minimum and maximum values within the 0.05 and 0.95 quantiles, we can use these values as our new breakpoints. Any data point outside of this range would be considered an outlier.For example, if we have a dataset of test scores ranging from 50 to 100, and we want to find new breakpoints that span only the 0.05 and 0.95 quantiles, we would first sort the data in ascending order. Let's say the 5th percentile is 60 and the 95th percentile is 90. We would then use 60 as our new minimum value and 90 as our new maximum value.In summary, to find new breakpoints for the data that span only the 0.05 and 0.95 quantiles, we need to identify the minimum and maximum values within these quantiles and use them as our new breakpoints.Know more about the quantiles
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Please give me all formulas of motion that we require to solve numericals..(from ch gravitation class 9)
Answers
Explanation:
F = G*M1 *m2 / r²
g = G *M / R²
v= u+GT.
v² = u²+2gh.
s= ut + 1/2 gt²
W= mg.
pressure = thrust / area.
relative density = density of substance / density of water.
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Jay decides to walk home from school today. He lives 3 miles from school and can walk home in 45 minutes. At what rate is Jay traveling?
A. 1 mile/10 minutes
B. 1 mile/15 minutes
C. 1 mile/20 minutes
D. 1 mile/30 minutes
Answers
Answer:
James is traveling at 4 miles per hour.
Explanation:
3 miles per 45 minutes
x miles per 60 minutes(1 hour)
___________________
3*60=45*x
180=45x |:45
x=4
Atmospheric pressure decreases as we move from the sea level to the high altitude
Answers
Explanation:
The air at higher altitude get rarer
i need help please
The temperature at Houston is around 76ºF (24ºC). at Austin, about 200 km to the west-northwest, the temperature is 36ºF(2ºC). The temperature at the midway point is 50ºF(10ºC) and the wind is blowing at 10 ms-1 from the west-northwest. If the temperature advection remains constant, what will the temperature at your station be in 2 hours in Houston?
Answers
Based on the given information, the temperature at your station in Houston is likely to decrease in the next 2 hours due to the constant temperature advection and is estimated to be 63.04ºF (16.8ºC).
Given the wind speed of 10 m/s from the west-northwest, we can use the concept of wind advection to adjust the temperature gradient based on the speed and direction of the wind.
First, we need to convert the wind speed from meters per second to kilometers per hour, as the temperature gradient is typically expressed in degrees per kilometer.
10 m/s is equivalent to 36 kilometers per hour (10 m/s * 3.6 km/h).
Next, we can adjust the temperature gradient based on the wind speed. The temperature change due to advection is typically estimated using a rule of thumb, which suggests that for each 10 kilometers per hour of wind speed, the temperature change is approximately 1 degree Celsius (or 1.8 degrees Fahrenheit) over a distance of 100 kilometers.
In this case, with a wind speed of 36 kilometers per hour, the adjusted temperature change due to advection would be approximately 3.6 degrees Celsius (or 6.48 degrees Fahrenheit) over a distance of 100 kilometers.
Now, let's calculate the temperature change at your station in Houston after 2 hours using the adjusted temperature gradient.
Temperature change = Adjusted temperature gradient × Distance × Time
Temperature change = 3.6°C/200 km * 200 km * 2 hours
Calculating the result, the temperature at your station in Houston is estimated to decrease by 7.2 degrees Celsius (or 12.96 degrees Fahrenheit) after 2 hours.
To find the final temperature at your station, subtract this temperature change from the initial temperature of 76ºF (24ºC):
Final temperature = Initial temperature - Temperature change
Final temperature = 76ºF (24ºC) - 12.96ºF (7.2ºC)
The estimated final temperature at your station in Houston after 2 hours is approximately 63.04ºF (16.8ºC).
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22) Net force is the total of all forces acting on an object. When a force is balanced and the object does not move, the net force is equal to what: A) 0 B) 10 C) 100 D) The weight of the object
Answers
Answer:
A) but be sure and read the answer.
Explanation:
If the object does not move at all, (that's an important restriction) the net force = 0. That being so, the acceleration must be 0 as well. But there is no law saying that there cannot be a constant motion and that's why the restriction is important.
Suppose a spectral line of hydrogen, normally at 500 nm when measured in a lab on Earth, is observed in the spectrum of a star to be at 500.3 nm. This is called a red shift because the wavelength is longer (and red is on the long-wavelength side of the visible spectrum). How fast is the star moving away from Earth? Give your answer in m/s. Hint: follow example 5.6. Compare in particular to the "Check your learning" calculation, and note that larger Δλ means larger speed.
Answers
The star is moving away from Earth at a velocity of 1.8 x 106 m/s.
The Doppler Effect describes the shift in wavelength of a wave when the source is moving in relation to the observer. The shift can be observed in sound waves, light waves, and other waves.
The Doppler Effect can be used to determine the velocity of objects moving away from an observer, as in the case of stars moving away from Earth.
The velocity of a star moving away from Earth can be determined using the equation:
v = Δλ/λ x c, Where v is the velocity of the star, Δλ is the shift in wavelength of the spectral line, λ is the wavelength of the spectral line measured in the lab on Earth, and c is the speed of light (3.00 x 108 m/s).
In this case, the shift in wavelength of the spectral line is Δλ = 500.3 nm - 500 nm = 0.3 nm.
The wavelength of the spectral line measured in the lab on Earth is λ = 500 nm.
Plugging in these values to the equation above: v = Δλ/λ x cv = (0.3 nm / 500 nm) x (3.00 x 108 m/s) = 1.8 x 106 m/s.
Therefore, velocity of star 1.8 x 106 m/s.
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A ship leaves port and travels 50 miles at a standard position of 45⁰. The ship
then travels for 90 miles in a standard position angle of 80⁰. At that point the ship
drops anchor. A speedboat travelling 30 miles per hour moves towards the ship in a
straight line. At what time will it get there?
Answers
Answer:
t = 4.468 h
Explanation:
For this exercise let's start by calculating the distance where the boat is
the first trip is 50 miles at 45 °, then 90 miles at 80 °,
to find the total distance let's find the distance of each displacement
cos 45 = x₁ / 50
sin 45 = y₁ / 50
x₁ = 50 cos 45 = 35.35 miles
y₁ = 50 cos 45 = 35.35 miles
cos 80 = x₂ / 90
sin 80 = y₂ / 90
x₂ = 90 cos 80 = 15.63 miles
y₂ = 90 sin 80 = 88.63 miles
let's find the total displacement in each axis
x_total = x₁ + x₂
x_total = 35.35 + 15.63
x_total = 50.98 miles
y_total = y₁ + y₂
y_total = 35.35 + 88.63
y_total = 123.98 miles
Let's use the Pythagorean theorem to find the modulus of the displacement
R = √ (x_total² + y_total²)
R = √ (50.98² + 123.98²)
R = 134.05 miles
The boat goes at a constant speed,
v = R / t
t = R / v
let's calculate
t = 134.05 / 30
t = 4.468 h
Un caudal de agua circula por una tuberia de 1 cm de sección interior a una velocidadde 0,5 m/s. Si deseamos que la velocidad de circulación aumente hasta los 1,5 m/s, quesección ha de tener tubería que conectemos a la anterior?DatosFórmula Sustitución, operaciones y resultadoConclusion
Answers
When a circular motion spinning at 32 degrees, what's the most likely cause for the spinning object to slow down
Answers
Answer:
Loss of momentum
Explanation:
Centripetal force is the name given to any force which causes a change in direction of velocity toward the center of the circular motion. The component of the force which is perpendicular to the velocity is the part resulting in the centripetal force
Select the arrangement of the electromagnetic radiation which starts with the lowest energy and increases to the greatest energy.
A) radio, infrared, ultraviolet, and gamma rays.
B) radio, ultraviolet, infrared, and gamma rays.
C) gamma rays, infrared, radio, ultraviolet.
D) gamma rays, ultraviolet, infrared, and radio.
E) infrared, ultraviolet, radio, and gamma rays.
Answers
The arrangement of electromagnetic radiation, starting with the lowest energy and increasing to the greatest energy, is Option B) radio, ultraviolet, infrared, and gamma rays.
Radio waves have the lowest energy and longest wavelength among the given options. They are used for communication and broadcasting purposes.
Ultraviolet (UV) rays have higher energy and shorter wavelength than radio waves. They are responsible for effects like sunburn and are used in applications such as UV sterilization.
Infrared (IR) radiation has higher energy and shorter wavelength compared to ultraviolet rays. It is associated with heat and finds applications in thermal imaging and remote controls.
Gamma rays have the highest energy and shortest wavelength among the given options. They are a form of ionizing radiation used in medical imaging and radiation therapy.
Therefore, the correct arrangement of electromagnetic radiation in terms of increasing energy is radio, ultraviolet, infrared, and gamma rays, as mentioned in Option B.
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Why is vinegar considered a solution?
Answers
Answer:
Vinegar is a homogenous mixture of acetic acid and water. As the mixture created has only one phase it is a solution. ... There are no chemical bonds created between water and the acid and it is possible to separate the two without breaking any chemical bonds.
Explanation:
vector and scalar different
Answers
Physical quantities which needs only magnitude to express itself, and doesn't need any specific direction.
it's calculations can be performed using simple algebraic methodsExample - Speed, Distance, time, mass, and so on.
Vector quantity ~Physical quantities which needs magnitude as well as direction to express itself, and follows vector law of addition.
It's calculations Can't be performed through simple algebraic methods, vector algebra is required.Example - force, acceleration, velocity, and so on.
The tank is 51m long and 20m wide.The sea water in the tank is 11m deep and has a density of 1030 kilograms per cubic meters.
Calculate the mass of water in the tank.
Answers
Answer: 1.2 x 10^7kg
Explanation:
Volume of tank = length x width x height
Volume = 51 x 20 x 11
Volume = 11220 m^3
Density = Mass/Volume
Density = 1030 kg/m^3
Volume = 11220 m^3
Mass = m
1030 = m/11220
m = 1030 x 11220
m = 11,556,600 kg or 1.2 x 10^7kg
What is the converse of the statement "No pilots are mechanics"?
a. No mechanics are pilots.
b. Some mechanics are pilots.
c. All pilots are mechanics.
d. None of these
Answers
The converse of the statement "No pilots are mechanics" is No mechanics are pilots.
Hence, the correct option is A.
The converse of a statement switches the subject and the predicate and negates both. In the original statement, the subject is "pilots" and the predicate is "mechanics."
The original statement states that there is no overlap between pilots and mechanics. In the converse statement, the subject becomes "mechanics" and the predicate becomes "pilots," and it still states that there is no overlap between the two groups.
Therefore, The converse of the statement "No pilots are mechanics" is No mechanics are pilots.
Hence, the correct option is A.
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You are sitting 3 m away from you friend who is watching a cartoon on his phone. How will the sound itensity change if your friend moves a distance 6 cm from you?
Answers
Answer:
Decreases by \($3.6 \times 10^{-3}$\) times
Explanation:
The intensity of a sound is defined as the energy of the sound that is flowing in an unit time through the unit area which is in the direction that is perpendicular to the direction of the sound waves movement.
The intensity of energy is described by the inverse square law. It states that the intensity varies inversely with the distance square of the distance.
In other words, the sound intensity decreases as inversely proportional to the squared of the distance. i.e. \($\frac{1}{r^2}$\)
In the context when the distance was 3 m, the intensity of the sound was = \($\frac{1}{9}$\)
But when the distance became 6 cm or 0.06 m, the sound intensity decreases by = \($\frac{1}{0.06^2}$\)
= \($3.6 \times 10^{-3}$\) times
Describe two possibilities of what will happen to the universe in the future.
Answers
i hope this helps :)
The Universe in the future have two possibilities:
The Universe will come to an end in the opposite of a Big Bang called The Big Crunch. The other possibility is that we live in an Eternal Universe that will never come to end.What is universe?Universe is the whole cosmic system of matter and energy. The Earth, the Sun, the Moon, the planets, the stars along with the dust , gases, rocks forms the universe.
The big bang is the theory which explains that how the universe began. It says that the universe began with just a single point. It went on expanding and stretched to grow as large as possible. It is still now expanding.
The universe consist of fully dark matter, interstellar gases or dust. The big bang is increasing just because in universe there is abundant of hydrogen and helium. The two possibilities:
The Universe will come to an end in the opposite of a Big Bang.The other possibility is that we live in an Eternal Universe that will never come to end.This universe is still on it way of expanding more.
Thus, the future possibilities of universe are explained.
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PLS HURRY
Exporting agribusiness technology to developing countries is likely to increase the availability of food while reducing the stability of traditional________
who are currently the primary farming population.
Specialized technology works well in_________ where the uniformity of the crop encourages tight-focused machines rather than unspecialized machines that can be adapted for multiple tasks.
Answers
Answer:
Explanation:
Modern technology such as chemical fertilisers, pesticides, herbicides, modern agricultural machinery, artificial selection... have been used to increase food production. Development and use of chemical fertilisers on farm land à boots levels of nutrients in the soil, increasing crop yields.
hen approaching a curve, it is best to: A. Search for possible collision traps and escape paths B. Stay close to the centerline if there is oncoming traffic C. Squeeze the clutch lever to slow down D. Shift to a higher gear
Answers
Squeezing the clutch lever to slow down is best to be done when approaching a curve and is denoted as option C.
What is Clutch?This is a mechanical device which used in the engagement and disengagement of transmission system in a vehicle.
Slowing down will give the driver more time to maneuver the curves so as to prevent accident. This is why it is imperative to squeeze the clutch in such road condition.
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Lichens are not single organisms, but algae and fungi that function together. The algae use photosynthesis to make food for both organisms. The fungi produce digestive chemicals and absorb nutrients for both organisms. How does the biological activity of lichens cause weathering in rocks? Answer options with 4 options A. Lichens cause friction as they grow, which weathers the rocks. B. Lichens produce chemicals, which dissolve and weather the rocks. C. Lichens take in water, which freezes in cracks and weathers the rocks. D. Lichens absorb heat during photosynthesis, which weathers the rocks.
Answers
Answer:
The correct answer is B
Lichens produce chemicals which dissolve and weather the rocks.
Assume your eyes receive a signal consisting of blue light, 470 nm. The energy of the signal is 2. 50 1014 J. How many photons reach your eyes
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The energy of photon with the wavelength of 470 nm is 4.23 × 10 ⁻¹⁹ J. The total energy of all photons is given 2.50 J. Then the number of photons reaching our eyes is 5.93 × 10¹⁸.
What are photons?According to De Broglie's dual nature of matter, light behaves as both wave and particle. If the light has the particle nature, the light particles are called photons.
The energy of one photon is E = hc/λ
Where h is the Planck's constant and c be the speed of light.
given that λ = 470 nm
h = 6.63 × 10⁻³⁴ J. s
c = 3 × 10⁸ m/s.
Then E = ( 6.63 × 10⁻³⁴ J. s × 3 × 10⁸ m/s ) / (470 × 10⁻⁹ m) = 4.23 × 10 ⁻¹⁹ J.
This is the energy of one photon. If the total energy is 2.50 J. The number of photons = 2.50 J / 4.23 × 10 ⁻¹⁹ J = 5.93 × 10¹⁸.
Therefore, the number of photons reaching our eyes is 5.93 × 10¹⁸.
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