It's True that Hypothermia is an excessive decline in a body temperature.
What is Hypothermia?Hypothermia is condition that occurs when the body’s temperature drops below 95° F (35° C).The normal body temperature is 98.6° F (37° C). Hypothermia is medical emergency.
When a person’s body temperature is dangerously low, the brain and the body cannot function properly. Left untreated, hypothermia can lead to the cardiac arrest (heart stops beating) and death.
What are the treatments of Hypothermia?The first steps when treating hypothermia are:
Move to warm, dry location. Remove the wet clothing and replace with the dry clothing. Cover up with the jacket, hat, and blanket
When hypothermia is the more severe, doctors may also need to:
Insert IV into your vein and pump warm fluids into your body. Give you warm oxygen through a mask or a breathing tube. Use machine that warms your blood and pumps it back into your body
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The pendulum is a thin ring with a radius of R 10 cm and a mass of m 500 g, suspended on a weightless thin rod with a length of l 0.4 m. Determine the moment of inertia of the pendulum relative to the axis around which the oscillations occur
The moment of inertia of the pendulum is determined as 0.0025 kgm².
What is moment of inertia?
The moment of inertia of an object is defined as a measurement the rotation of the object around a fixed axis.
The pendulum can be modelled as a circular disk and the moment of inertia is calculated as follows;
I = ¹/₂Mr²
where;
M is mass of the pendulumr is the radius of the pendulumI is the moment of inertia of the pendulumSubstitute the given parameters and solve for the moment of inertia of the pendulum.
I = 0.5 X 0.5 kg x (0.1)²
I = 0.0025 kgm²
Thus, the moment of inertia of the pendulum is determined as 0.0025 kgm².
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Acceleration is obtained of 6 m/s2 with a force of 36 n. what is the mass of the object accelerating?
The mass of the object is 6 kg.
Any push or pull applied to an object is termed a force. In other words, force is defined as the product of the mass of the object and its acceleration. SI unit of force is Newton and that is denoted by the symbol N. Force is termed as a vector quantity because it has both magnitude and direction.
[tex]Force = Mass × Accleration [/tex]
[tex] F = m × a[/tex]
Acceleration is defined as the rate at which velocity changes an object over time.
Si unit of the acceleration is a meter per second square.
[tex]Accleration = \frac{Velocity}{ Time}[/tex]
[tex]a = \frac{v}{t} [/tex]
Acceleration = 6 m/s²
Force = 36 N
The mass of the object is,
[tex]F = m × a[/tex]
[tex]36 = m \times 6[/tex]
[tex]m = \frac{36}{6} [/tex]
[tex]m = 6 \: kg[/tex]
Therefore, the mass of the object is 6 kg.
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Calculating The Milky Way galaxy contains
between 200 and 400 billion stars. Estimate the
number of stars in a cluster of 30 galaxies similar
in size to the Milky Way. Your answer should
consist of a low estimate and a high estimate,
both expressed in scientific notation.
——I NEED HELP ASAP!! PLEASE
The number of stars range between 6 * 10^9 stars and 1.2 * 10^10 stars.
What is the number of stars?We know that a galaxy is composed of many stars. The stars in the galaxy as we saw from the question, using the milky way as a template may have between 200 and 400 billion stars.
The number of stars could be obtained as the product of the number of galaxies and the number of stars in the lower and the upper limits.
Number of stars in the lower estimate = 200 * 10^6 * 30 = 6 * 10^9 stars
Number of stars in the higher estimate = 400 * 10^6 * 30 = 1.2 * 10^10 stars
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Measuring human impact and comparing it with the biophysical world's carrying capacity is known as:________-
Measuring human impact and comparing it with the biophysical world's carrying capacity is known as Ecological footprint.
What is Ecological footprint?
The Global Footprint Network promotes the ecological footprint as a way to assess how much nature is needed to sustain a certain number of people or an economy. Through an ecological accounting system, it monitors this demand. The accounts compare the biologically productive areas used by people for consumption to the biologically productive areas available in a region or throughout the world (biocapacity, the productive area that can regenerate what people demand from nature). It measures the effects of humans on the environment, to put it briefly.
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A violin string has a length of 0. 350m and is tuned to concert G, with f_G = 392Hz(b) If this position is to remain correct to one-half the width of a finger (that is, to within 0. 600 cm ), what is the maximum allowable percentage change in the string tension?
The maximum allowable percentage change is 3.8% in the string tension
Length of the string lg as given in the question = 0.350m
frequency of concert G f_g as given in the question= 392 Hz
The maximum allowable percentage change in string tension for this frequency remains constant and the given allowed interval of the change of the length
Formulating the equation and solving:
Let f be the frequency, T be the tension and U be the length of the wave
f = 1/2L*[tex]\sqrt{} T/U[/tex]
df = 1/2[tex]\sqrt{} U[/tex]*[tex](1/2\sqrt{}T- Ldt - dL\sqrt{}T)/L^{2}[/tex]
df = 0
dT/T = 2*(dL/L)
= 2*0.6/31.2
dT/T = 0.038
Percentage change in string tension 3.8%
The maximum percentage change in string tension is 3.8%
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Electromagnetic (em) radiation penetrates the atmosphere of earth at what portions of the electromagnetic spectrum?
Longwave radiation is the name given to the infrared component of the spectrum of radiation that Earth emits; its usual wavelengths range from 4 to 30 micrometers (0.0002 to 0.001 inch).
The electromagnetic spectrum is made up of radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays, among other types of electromagnetic radiation. The earth's atmosphere blocks out the majority of electromagnetic radiation from space, preventing most of it from reaching the planet's surface.
Visible light is electromagnetic radiation with wavelengths between 400 and 700 nm. A portion of the electromagnetic spectrum that humans can see with our eyes is the visible light or spectrum. The outside of Earth. Effectively, visible light can pass through Earth's atmosphere.
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In which environment(s) is a population of seed-eating birds likely to undergo adaptive radiation? check all that apply.
a relatively recent volcanic island with a wide variety of vegetation.
Adaptive radiations can be caused by intrinsic variables (also known as "important adaptive innovations") that improve the availability of niches to a diverging lineage, or by external factors (such as the creation of new ecological opportunities through the emergence of fresh environments). existence of populations of recently diverged closely related species. The first half of this century's naturalists believed that three ecological processes led to adaptive radiation: phenotypic differentiation of populations through resource-based divergent natural selection, phenotypic differentiation through resource competition (ecological opportunity), and phenotypic differentiation through divergent character.
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Sketch the vector v in space and write its component form. v lies in the xz-plane, has magnitude 5, and makes an angle of 45 degree with the positive z-axis.
The component form is [tex]5/2 [\sqrt{2} /2,0,\sqrt{2}/2], 5/2 [-\sqrt{2} /2,0,\sqrt{2}/2][/tex].
If vv lies in the xz-plane then yy coordinate is 0.
We can have two scenarios: when vv lies in front of yz-plane and when vv lies behind yz-plane.
If vv lies in front of yz plane, then v=5×[tex][\sqrt{2} /2,0,\sqrt{2}/2][/tex]
If vv lies behind yz-plane then v=[tex][-\sqrt{2} /2,0,\sqrt{2}/2][/tex]
What is a vector parametric equation?A linear combination of vectors with potentially unknowable coefficients makes up a vector equation. It is the same as asking if a given vector is a linear combination of some other provided vectors to determine whether or not a vector equation has a solution.
The vector equation's components, x = x0 + at, y = y0 + bt, and z = z0 + ct, are the line's parametric equations. The direction numbers of the line are the three elements a, b, and c.
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Signal at least ____ before making a turn.
a) 2 blocks
b) 10 feet
c) 20 feet
d) 100 feet
The correct option is (d) 100 feet
Signal at least 100 feet before making a turn.
Before stopping, turning, or changing lanes, signal to other drivers so they are aware of your impending action. You can signal with your hand, arm, or your car's turn signals and brake lights. You should signal at least 100 feet before your turn so that other vehicles have time to adjust. You should turn from the lane that is closest to the direction you wish to go and into the lane that is closest to the one you came from if there are no signs or lane markers to restrict turning. You'll cross the fewest number of lanes of traffic in this manner. When making turns, switch lanes as smoothly as you can without going over the lane lines or obstructing the flow of traffic.Learn more about the safety driving with the help of the given link:
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Due to radiation and absorption, what is the maximum flame temperature in a fire?
The maximum flame temperature in a fire is 1500-1600K due to radiation and absorption.
What do you mean by radiation and absorption?In physics, matter (usually electrons bound in atoms) absorbs electromagnetic radiation in order to convert the energy of a photon into the internal energy of the absorber (for example, thermal energy). Attenuation, or the steady decrease in light wave intensity as it travels through a medium, is a prominent effect. In some circumstances (optics), the medium's transparency changes by a factor that varies as a function of wave intensity, leading to saturable absorption (or nonlinear absorption), even though the absorption of waves typically does not depend on their intensity (linear absorption).
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A point located on the second hand of a large clock has a radial acceleration of 0.10 cm/s2. how far is the point from the axis of rotation of the second hand?
The distance of the point from the axis of rotation of the second hand is 9.1 m.
Radius of the clockThe point from the axis of rotation of the second hand is the radius of the rotation of the clock.
a = v²/r
v² = ar
v = √ar
V = [tex]\frac{2\pi r}{T}[/tex]
√ar = [tex]\frac{2\pi r}{T}[/tex]
ar = [tex]\frac{4\pi^2 r^2}{T^2}[/tex]
a = [tex]\frac{4\pi^2r}{T^2}[/tex]
r = [tex]\frac{aT^2}{4\pi^2}[/tex]
r = (0.1 x 60²)/(4π²)
r = 9.1 m
Radial accelerationNewton’s second law states that when a body is subjected to an external force, it begins to accelerate.
The only thing that constitutes acceleration is a change in an object’s velocity over time. It carries both magnitude and direction as a vector quantity.
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We drive a distance of 1 kilometer at 20 km/h. then we drive an additional distance of 1 kilometer at 30 km/h. what is our average speed (in km/h)?
The driver drives at a speed of 20km/hr, then the average speed is 24km/hr.
According to the question, they traveled one kilometer at a speed of 20 kilometers per hour. The equation time = distance/speed can be used to determine how long it will take to travel this distance. Thus, the duration of the initial leg of the journey is 1/20, or 0.05 hours.
then proceeded to travel at a speed of 30 km/h for an additional distance of 1 km. Similar to the previous section, this one's travel time is 1/30, or 0.0333 hours.
Now, add the travel times for both legs to get the overall time: 0.05 + 0.0333 = 0.0833 hours.
Now, adding the distances covered in each leg of the journey to get the total distance traveled: 1 + 1 = 2 kilometers.
By dividing the total distance by the total time, we can finally determine the average speed: average speed = total distance/total time = 2/0.0833 24 km/h.
As a result, they travel at a speed of roughly 24 km/h.
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1. How many milligrams are in 25 grams?
Answer: 25000 milligrams are in 25 grams
Explanation:
Answer:
25,000
Explanation:
Since 1 gram is 1,000 milligrams, multiply 25 x 1,000 to get the answer.
7. 122 10 292 252 Fig. 6.31 a The effective resistance of the circuit shown in the figure above is ? NE
R1+R2+R3 =1+1+1=3 is used to represent the circuit's overall resistance.
The 3 resistors on the upper side of the circuit are linked in series in this instance, and the total resistance R1 is expressed as 1+1+1=3.
The combined resistance R2 is expressed as 2+2+2=6 due to the series connection of the three 2-ohm resistors on the lower part of the circuit. The intermediate resistances R1, R2, and 2 are linked in parallel. This parallel connection's total resistance, R3, is therefore represented as 2/1+ 2/1+ 6/1 = 1/1=1 ohm.
In other words, the closed loop's resistance is decreased to 1 ohm.
Now, R1+R2+R3 =1+1+1=3 is used to represent the circuit's overall resistance (R).
As a result, the resistance in the circuit from point A to point B is 3.
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According to wien's law, if the surface temperature is increased by a factor of 2, its peak wavelength will:________
Wien's law states that the peak wavelength will: if the surface temperature increases by a factor of 2, the peak wavelength will: decrease by a factor of 2.
What is Wien's law in simple terms?
According to this, the wavelength at which the radiation curve reaches its maximum decreases as temperature increases. Higher energy photons are associated with the shift to shorter wavelengths. In other words, the relationship between max (peak wavelength) and temperature is inverse.
According to Wien's Law, which bears the name of German physicist Wilhelm Wien, objects with varying temperatures emit spectra with varied peak wavelengths. Shorter wavelength radiation is emitted by hotter things, giving them their blue appearance.
Wien's constant is a physical constant that describes the correlation between the black body's thermodynamic temperature and wavelength. It is a result of the black body's temperature and wavelength, which decreases as temperature increases until the wavelength is at its shortest.
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In an inductive circuit with an uncorrected power factor of 40 percent to 60 percent, the power factor can be corrected to within 5 percent of unity by the addition of a(n) ____
In an inductive circuit with an uncorrected power factor of 40 percent to 60 percent, the power factor can be corrected to within 5 percent of unity by the addition of a(n) capacitor.
What is capacitor?A capacitor is a gadget that stores electrical energy in an electric field. It is an inactive electronic part with two terminals. The impact of a capacitor is known as capacitance. A capacitor is a gadget that stores electrical energy in an electric field. It is an uninvolved electronic part with two terminals. The impact of a capacitor is known as capacitance. While some capacitance exists between any two electrical conduits in closeness in a circuit, a capacitor is a part intended to add capacitance to a circuit. The capacitor was initially known as a condenser or compensator. This name and its cognates are still generally utilized in numerous dialects, yet seldom in English, one eminent exemption being condenser mouthpieces, likewise called capacitor receivers.
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Why is the use of carbon- 14 dating limited?
Answer:
because carbon 14 has only a short half life, rather than other elements with longer half lives.
Explanation:
✨science✨
A bottle has a mass of 35.00 g when empty and 98.44 g when filled with water. When filled with another fluid the mass is 88.78g. What is the specific gravity of this other fluid
Answer:
mass of water = 98.44 - 35.00 = 63.44g
water has a density of 1000g/L
Volume of bottle = 63.44/1000 = .06344L
mass of other liquid = 88.78-35 = 53.78g
density of other liquid = 53.78g/0.06344L = 847.73g/L
Since water has a specific gravity of 1, set up a relation 1000/847.73 =1/sg
sg=.85
A particle has an acceleration of 6.14 m/s2 for 0.300 s. at the end of this time the particle's velocity is 9.41 m/s. part a what was the particle's initial velocity? chefggg
The initial velocity of particle is 7.568 m/s
Given:
Acceleration = a = 6.14 m/s2
Time = t = 0.300 s.
final velocity = v = 9.41 m/s.
To Find:
initial velocity = u
Solution: Velocity is the prime indicator of the position as well as the rapidity of the object.
v = u + at
u = v - at = 9.41 - 6.14*0.3 = 7.568 m/s
Hence, initial velocity of particle is 7.568 m/s
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The rectangular resistors with leads specifically made to fit into printed circuit boards are ____ resistors.
The rectangular resistors with leads specifically made to fit into printed circuit boards are surface mount resistors.
The resistors are the device which resists the motion of current or electricity.
They are electronic devices used in electrical circuits.
The general type of resistors which are rectangular with leads so taht they fit the circuit boards are called surface mount resistors.
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Johnny Hotfoot slams on the brakes of his car mov- ing at 60 mph (26.7 m/s) and skids to a stop in 4 s. (a) What is the deceleration of the car? (b) How far does it skid?
At 60 mph (26.7 m/s), Johnny Hotfoot slams on the brakes of his car and skids to a stop in 4 s. (A) How fast is the car slowing down? (b) The extent of the skid.
If the car had been traveling at 40.0 m/s, it would have slid 27.2 m.
The frictional force opposes the linear force pulling on the automobile. Consequently, m is the vehicle's mass, an is its acceleration, and c is its coefficient of friction.
The normal force is R.
given the aforementioned variables
Find the length of the skid if the vehicle had been traveling at 40.0 m/s.
The car would have skidded 27.2 meters if it had been driving at 40.0 meters per second.
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A 100-w light bulb is operated by a 110-v dc source. what is the resistance of this bulb?
By using the power formula, the resistance of the bulb is 121 Ω.
We need to know about dissipated power to solve this problem. Power is energy dissipated to resistance as heat energy. It can be determined as
P = I . V
where P is power, I is current and V is voltage.
From Ohm's Law, we can substitute the current to
I = V / R
Hence, we can write the power equation to
P = (V/R) . V
P = V² / R
From the question above, we know that:
P = 100 watt
V = 110 volt
By substituting the following parameters, we get
P = V² / R
100 = 110² / R
R = 121 Ω
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If the spectrometer had been set to a different wavelength to measure absorbances (one where the copper would have absorbed more or less light), how would that have changed the results?
If the spectrometer had been set to a different wavelength to measure absorbances (If the spectrometer had been set to a different wavelength to measure absorbances) then the calculated unknown concentration should same.
Absorbance is directly proportional to the concentration of the substance.
higher concentration gives higher absorbance because the light absorbed is affected by the interacted no. of molecules.
Spectrometer - An instrument used to measure wavelength of spectra over a wide range.
types of spectrometer
emission absorptionIf the spectrometer had been set to a different wavelength to measure absorbances (If the spectrometer had been set to a different wavelength to measure absorbances) then the calculated unknown concentration should same.
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How many grams of calcium metal is required to react with 7.75 g water to produce calcium hydroxide and hydrogen gas?
87.69 grams of calcium metal is required to react with 7.75 g water to produce calcium hydroxide and hydrogen gas.
Ca (OH)2+2H2 = CaH2 + 2H2O
Convert grams of hydrogen to moles of hydrogen.
H2 has a molar mass of 2.016 g/mol.
1 mol H2 x 8.400g H2
2.016g H2 equals 4.1667 mol H2
Calculate the moles of CaH2 using the molar ratio.
The molar ratio is 1 mol CaH2: 2 mol H2, according to the equation that is balanced.
2.0833 mol CaH2 = 4.1667 mol H2 1 mol CaH2 2 mol H2
grams of CaH2 to CaH2
CaH2 has a molar mass of 42.09 g/mol.
1.mol CaH2=87.69 g CaH2 2.0833mol CaH2=42.09 g CaH2
87.69 g CaH2 are required for the reaction.
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If you want to add 5 calories of heat to 1 gram of water, how will the temperature change?
Answer:
It will increase to 5ᵒC.
Explanation:
In parabolic solar cooker a cooking vessel is not kept at the radius of the curved surface
In parabolic solar cooker, the container of cooking is placed at the focal point of mirror of parabolic shape so that all rays that are falling on solar cooker can converge to one point and produce large amount of heat energy.
A parabolic solar cooker is a cooking device that works on the energy generated from solar panel.
Though solar cookers are slow to cook, they are green sources of energy utilizer as well as renewable source of energy.
Parabolic solar cookers make the use of a reflector which is parabolic in shape to concentrate sunlight into a smaller area in order to generate heat for cooking. They are able to reach high temperatures, which allows them to be used for grilling and frying. These temperatures are significantly higher than what can be reached by a solar box cookers or solar panel cookers .
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What is the resultant ph if 50 ml of 0.1 m hcl are added to 800 ml of 0.05 m acetate buffer at ph 5.2? the pka of acetic acid is 4.76?
The resultant pH= 4.95
Steps
A weak acid solution and a conjugate base solution can be combined to create a buffer.
Strong acid or strong base addition does not result in a significant pH shift when a weak acid and conjugate base are present in the solution.
A buffer's pH can be determined using the Henderson-Hasselbalch equation:
pH = Pka + log [base] / [acid]
Let 0.05-x represent the amount of acetate in the buffer and x represent the amount of acetic acid in the buffer.
5.2 = 4.75 + log 0.05− x / x
0.05− x = 0.0369 M
HA = 0.0130 M × 800 mL+ 50 mL× 0.1 M = 15.47 mmol
A = 0.0369 M× 800 mL− 50 mL×0.1 M = 24.52 mmol
The new pH is:
pH= 4.75 + log 25.42 / 15.47
pH= 4.95
The resultant pH of the solution= 4.95
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Clutch a cart starts at x = 2.0 m and travels towards the origin with a constant speed of 2.0 m/s. what is it the exact cart position (in m) 2.0 seconds later?
When the cart travels towards the origin, the magnitude of its exact position reduces with time.
The cart will be at -2 m (origin) 2s later.
What is it the exact cart position (in m) 2.0 seconds later?
When the cart travels towards the origin, the magnitude of its exact position reduces with time.
The formula of speed is given as
S = d/t ................. (1)
Where S = speed of the cart,
d = distance covered by the cart over a certain time.
t = time taken to cover the distance.
Where d the subject of the equation,
d = St ................. (2)
Given: S = 2.0 m/s, t = 2.0 s
Substitute into (2)
d = 2(2)
d = 4 m.
From the above, the cart covered a distance of 4 m in 2s.
The exact position of the cart = Initial position - distance covered
x' = x - d ............ (3)
Where x' = exact position of the cart 2s later,
x = initial position of the cart, and
d = distance covered by the cart in 2.0 s
Given: x = 2.0 m, d = 4 m.
Substitute into (3)
x' = 2.0 - 4
x' = -2 m.
Therefore the cart will be at -2 m (origin) 2s later.
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A____test instrument is a device that is installed in a process or at a bench to continually measure and display quantities.
The device that is installed in a process or at a bench to continually measure and display quantities is a permanent test instrument.
What is a measuring instrument?A tool for measuring a physical quantity is a measuring instrument. Measurement, in the physical sciences, quality control, and engineering, is the process of gathering and contrasting the physical amounts of things that actually happen in the real world. As units, pre-defined standard things and occurrences are used, and the measuring procedure yields a number that connects the subject-matter under investigation to the used unit of measurement. These numerical relationships are attained through the employment of measuring devices and formal test methodologies that specify the device's use. The instrument error and measurement uncertainty that affect all measuring devices varies in severity. From basic tools like stopwatches and rulers to electron microscopes and particle accelerators, these instruments can be used for various purposes.
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For what type of object is the period-luminosity relation used for determining distances?
a. rr lyrae variables
b. t tauri variables
c. cepheids cataclysmic variables
d. planetary nebulae
Cepheids cataclysmic variables object is the period-luminosity relation used for determining distances.
What is Cepheids cataclysmic variables?Cepheid Variables are very bright stars that are 500–300,000 times as bright as the sun. They undergo brief variations every 1–100 days. They are pulsing variables that follow a predetermined pattern and experience rapid expansion and contraction. Other pulsating variables include RR Lyrae stars, which are short period, older stars that are not as massive as Cepheids; and RV Tauri stars, which are super giants with higher light fluctuations. Astronomers may study the variability of a Cepheid's brightness to determine its distance.
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