The amount of heat that the water absorbs in cooling system of the automobile is 4688320 Joules.
The water holding capacity of the cooling system of the automobile s 16L.
The density of water is 1000Kg/m³. The specific heat of water is 4.186 J/KgC°.
The temperature of the water rises to 87°C from 17°C.
Now, the amount of heat that the water absorbs is,
Q = mcT
Where,
Q is the heat absorbed,
m is the mass of the water,
c is the specific heat of water,
T is the change in temperature of water.
Putting values,
Q = 1000 x 16 x 4.186 x 70
Q = 4688320 Joules.
So, the amount of heat absorbed is 4688320 Joules.
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intergalactic gas in galaxy clusters emits large amounts of energy in the form of radio waves.
Intergalactic gas in galaxy clusters emits large amounts of energy in the form of radio waves due to a process called synchrotron radiation.
This occurs when electrons in the gas are accelerated by magnetic fields, causing them to emit radio waves as they spiral around the field lines. The strength of the radio emission is directly related to the strength of the magnetic field and the number of electrons present in the gas. This phenomenon is a powerful tool for astronomers to study the structure and evolution of galaxy clusters, as well as to better understand the properties of intergalactic gas.
intergalactic gas in galaxy clusters emits large amounts of energy in the form of X-ray radiation, not radio waves.
Intergalactic gas in galaxy clusters is primarily composed of hot plasma that is millions of degrees in temperature. Due to the high temperatures, this gas emits X-ray radiation rather than radio waves. X-ray telescopes, such as NASA's Chandra X-ray Observatory, are used to observe and study this phenomenon in galaxy clusters. Radio waves are emitted by other astronomical objects and phenomena, such as pulsars and quasars, rather than intergalactic gas in galaxy clusters.
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3. A student fills a plastic bottle full of water. He make a hole in the bottle half-way up,
and another hole at the bottom.
(a) Does the water come faster out of the hole in the middle or the hole at the bottom?
Explain your answer.
Answer:
It would go out the bottom hole faster.
Explanation:
It goes down the bottom hole faster because the water would get poured out the bottom before they even flipped the water bottle.
you observe gamma-ray burst a before gamma-ray burst b. can there somewhere be an observer who observes gamma-ray burst b before gamma-ray burst a? the gamma-ray bursts occur at a great distance from each other.
Yes, it is possible for an observer to see gamma-ray burst B before gamma-ray burst A, even if you observe A before B. This can happen due to the difference in the distance between the observer and the two gamma-ray bursts, as well as the angle at which they are observed.
When gamma-ray bursts occur at a great distance from each other, the time it takes for the gamma rays to travel from the source to the observer will be affected by the distance between the source and the observer. If observer X is closer to gamma-ray burst B and farther from gamma-ray burst A, they may observe burst B before burst A, even though you observed A before B.
Additionally, if the two gamma-ray bursts are not in the same direction, the angle at which they are observed can also impact the order in which they are seen. For observer X, the angle might be such that the light from burst B reaches them before the light from burst A.
In conclusion, due to differences in distance and angle, it is possible for an observer to see gamma-ray burst B before gamma-ray burst A, even if you observe them in the opposite order.
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opacity of the lens of the eye that impairs vision and can cause blindness is called
The opacity of the lens of the eye that impairs vision and can cause blindness is called cataract. Cataract refers to the clouding or opacification of the natural lens of the eye, which leads to a progressive decline in vision.
Cataracts commonly develop as a result of aging, but they can also be caused by factors such as trauma, certain medications, systemic diseases (e.g., diabetes), or genetic predisposition. Cataract surgery, which involves the removal of the cloudy lens and replacement with an artificial intraocular lens, is an effective treatment for cataracts, restoring clear vision for many individuals. It occurs when proteins in the lens clump together, causing the lens to become less transparent. This clouding obstructs the passage of light, resulting in blurred or distorted vision. If left untreated, cataracts can eventually lead to severe vision loss and even blindness.
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The concept that on the grandest of scales, the universe is similar
in appearance everywhere is:
A) special relativity.
B) general relativity.
C) homogeneity.
D) isotropy.
E) universality.
The grandest of scales, the universe is similar
C) homogeneity.
The concept of homogeneity suggests that on the grandest scales, the universe is similar in appearance everywhere. This means that the overall structure and composition of the universe are consistent throughout its vast expanse, regardless of where we look. This idea is a fundamental assumption in modern cosmology and is supported by a range of observational evidence.
The concept that on the grandest of scales, the universe is similar in appearance everywhere is referred to as "homogeneity."
Homogeneity, in the context of cosmology, implies that the universe looks the same on a large scale regardless of the observer's position or direction of observation. It suggests that the distribution of matter and energy is uniform and that there are no preferred locations or directions in the universe. This concept is an important assumption in the cosmological principle, which forms the basis for many models of the universe, including the widely accepted Big Bang model.
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an object 4.0 cm in height is placed 28.0 cm in front of a concave spherical mirror with a focal length of 30.0 cm. what is the position of its image in relation to the mirror, and what are the characteristics of the image?
The position of the image in relation to the mirror is approximately 15.88 cm. The characteristics of the image formed by the concave spherical mirror are: the image is located approximately 15.88 cm behind the mirror, the image is inverted, and the image is diminished in size compared to the object.
When an object is placed in front of a concave spherical mirror, its image is formed by the reflection of light rays. To determine the position of the image and its characteristics, we can use the mirror equation and the magnification equation.
The mirror equation is given by:
1/f = 1/d_o + 1/d_i
where:
f is the focal length of the mirror,
d_o is the object distance (distance between the object and the mirror),
d_i is the image distance (distance between the image and the mirror).
Given:
Height of the object (h_o) = 4.0 cm
Object distance (d_o) = -28.0 cm (negative sign indicates the object is in front of the mirror)
Focal length (f) = 30.0 cm
Substituting the given values into the mirror equation, we have:
1/30 = 1/(-28) + 1/d_i
Simplifying the equation, we find:
1/d_i = 1/30 + 1/28
To calculate the position of the image (d_i), we can take the reciprocal of both sides:
d_i = 1 / (1/30 + 1/28)
Calculating this, we find:
d_i ≈ 15.88 cm
Therefore, the position of the image in relation to the mirror is approximately 15.88 cm.
To determine the characteristics of the image (whether it is real or virtual, magnified or diminished), we can use the magnification equation, given by:
magnification (m) = -d_i / d_o
Substituting the values, we have:
m = -(15.88 cm) / (-28.0 cm)
Simplifying, we find:
m ≈ 0.57
The negative sign in the magnification indicates that the image is inverted compared to the object.
From the magnitude of the magnification, we can determine the size of the image relative to the object. Since the magnification (m) is less than 1, the image is diminished in size compared to the object.
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Measuring the intensity of the light at different location when laser pointed at 45°
To measure the intensity of the light at different locations when a laser is pointed at a 45-degree angle, you will need to use a light intensity measuring device, such as a lux meter or a spectrometer.
Begin by placing the measuring device at the first location and pointing the laser at a 45-degree angle towards it. Take a reading of the intensity of the light at that location and record the result.
Then, move the measuring device to the next location and repeat the process, taking a reading of the intensity of the light at each new location. Repeat this process until you have measured the intensity of the light at all desired locations.
Be sure to note the distance between the laser and the measuring device, as this can affect the accuracy of the readings. The data collected can then be used to create a graph or chart detailing the variation in light intensity across different locations.
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The chemical formula for an ionic compound made of potassium and chlorine is KCI. What is its chemical name?
O potassium oxide
O potassium chlorine
O potassium chloride
O potassium anion
KCL stands for Potassium Chloride
K-PotassiumCl-ChlorideMelting and Boiling points of few ionic compounds:-
\(\boxed{\begin{array}{|c|c|c|c|} \cline {1-4}\Large\sf {Ionic\:Compounds} & \sf \Large {Chemical\:Formula} & \Large \sf{Melting\:point_{(k)}} & \Large\sf {Boiling\:point_{(k)}} \\ &&& \\ \cline {1-4} \sf Sodium\:Chloride & \sf NaCl & 1074 & 1686 \\ &&& \\ \cline {1-4} \sf Lithium\:Chloride & \sf \sf LiCl & 887 & 1600 \\ &&& \\ \cline {1-4} \sf Calcium\:Chloride & \sf CaCl_2 & 1045 & 1900 \\ &&& \\ \cline {1-4} \sf Calcium\:Oxide & \sf CaO & 2850 & 3120 \\ &&& \\ \cline {1-4} \sf Magnesium\:Chloride & \sf MgCl_2 & 981 & 1685 \\ &&& \\ \cline {1-4} \end{array}}\)
Answer:
potassium chloride
Explanation:
K-potassium
Cl-chloride ion
what fraction of the light shining straight at a piece of clear glass is reflected from the first surface?
Fraction of the light shining straight at a piece of clear glass is reflected from the first surface is 1/8.
Light is a form of energy that enables us to see the world around us. It is an electromagnetic radiation that is visible to the human eye. Light can be measured in various units such as lumens, lux, and candelas. Light waves are of different colors, and each color has a different wavelength.The reflection of light from a surface is called reflection. When light falls on a surface, it may be absorbed, transmitted, or reflected. Reflection of light is the property of a surface to reflect light. The reflection of light from a smooth surface is called specular reflection, and the reflection from an irregular surface is called diffuse reflection.Reflection of lightWhen a beam of light is reflected from a surface, the angle of incidence and the angle of reflection are equal. The angle of incidence is the angle between the incoming ray and the normal to the surface at the point of incidence. The angle of reflection is the angle between the reflected ray and the normal to the surface at the point of incidence.
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A cannon fires a cannon ball vertically into the air. Find the initial velocity if the cannon ball reached the height of 4.75 meters.
The initial velocity of the cannon ball when it reached a height of 4.75 m is 9.65 m/s.
What is velocity?Velocity can be defined as the rate of change of displacement.
To calculate the initail velocity of the cannon ball, we use the formula below.
Formula:
v² = u²+2gH......... Equation 1Where:
v = Final velocityu = Initial velocity H = Heightg = Acceleration due to gravity.From the question,
Given:
v = 0 m/s (At the maximum height)H = 4.75 mg = 9.8 m/sSubstitute these values into equation 1
0² = u²+2×9.8×4.75u² = 93.1u = √(93.1)u = 9.65 m/sHence, the initial velocity of the cannon ball is 9.65 m/s.
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what is the nature of the force between balls a and b?
Considering how enticing both charges are. Only when applied over very small distances and at the level of subatomic particles do the weak and strong forces take control.
What does a scientific force mean?A clear meaning is attached to the word "force." The terms "push" and "pull" are perfectly acceptable at this level to describe forces. An object does not contain any force inside of it either within it. Other element applies pressure to the first.
How would you describe force to a young child?A push or pull constitutes a force. The motion of an item can occasionally be changed by forces, which also generate motion. Every object is drawn toward the center of the Earth by gravity, for instance.
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A rectangular loop of wire of dimensions 10.396 cm x 16.47 cm is near a long straight wire. One of the short sides of the rectangle is parallel to the straight wire and at a distance of 24.226 cm; the long sides are perpendicular to the straight wire. A current of 53.779 A flows on the straight wire, and a current of 121.164 A flows around the loop. What is the magnitude of the net magnetic force, in microNewtons, that the straight wire exerts on the loop?
Given:
The short side of rectangle is: S = 10.396 cm
The long side of rectangle is: L = 16.47 cm
The current in the rectangular loop is: I = 121.164 A
The current in the straight wire is: i = 53.779 A
The distance between the straight wire and the shortest side parallel to the wire is: R = 24.226 cm
To find:
A person holds a 25 kg (250 newton) bag of cement over his head and moves it a distance of 10 m, taking 2 minutes, while another person carries it on a wheelbarrow that same distance, taking 1 minute.Who does more work ? What is the power of each person?
Explanation:
Assuming the 10 m distance is the vertical displacement, the work done by both people is the same.
Work = force × distance
W = (250 N) (10 m)
W = 2500 J
The power of the first person is:
Power = work / time
P = 2500 J / 120 s
P = 20.83 W
The power of the second person is:
P = 2500 J / 60 s
P = 41.67 W
12. You and a friend are playing a game of basketball. Explain why the
basketball appears orange, be sure to use terms reflected and absorbed
in your answer. [4]
Help me plssss I’m giving out brainlest and 10 points
Answer:
If the basket ball appears orange then it can be said that it reflects orange light
Explanation:
The color of the object reflected by an object is the color which is viewed by a viewer. Hence, if the basket ball reflects the orange color light , then the ball will appear orange in color to the viewer.
The light absorbed by the object has no role in deciding the color of the object visible to a viewer.
hence, if the basket ball appears orange then it can be said that it reflects orange light.
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.
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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Gravity can be described as (2 points)
O a magnetic force found in nature
O the force that moves electrical charges
O the force that repels object with like charges
O the force of attraction between two objects
A ray of light has a wavelength of 284 nm in glass (n = 1.51). What is its wavelength in a vacuum? (Remember, the wavelength is longer in a vacuum.) (Unit = nm)
Answer:
428.8 nm
Explanation:
Use dimensional analysis to determine how many centimeters are in 15 kilometers.A. 15,000 cmB. 1,500 cmC. 1,500,000 cmD. 150 cm
In order to find how many centimeters are in 15 kilometers, we can use the following conversion rate:
1 km = 100,000 cm.
So, for 15 kilometers, we have:
\(15\text{ km}=15\cdot(100,000\text{ cm})=(15\cdot100,000)\text{ cm}=1,500,000\text{ cm}\)Therefore the correct option is C.
Question 2 (3 points)
Which of the following is the main difference between speed and velocity?
A)There is no difference between speed and velocity.
B)Velocity has both speed and direction.
C)There is no difference between speed and velocity.
D)Speed is constant.
Hi i was wondering if you could help me understand Kelvins? My question on my work says "Which of the following is the SI unit used in measuring the temperature of a hot cup of coffee" and the other question says, "Which of the following would be the SI unit to use in measuring the temperature of a hot liquid?" I said both are Kelvin but i dont really understand and i dont want to be wrong.
Answer:
Hey there!
Kelvin is correct. Farenheit and Celsius are scales derived from the Kelvin scale. For example, K=C+273.15 is the conversion between Kelvin and Celsius.
Let me know if this helps :)
A simple machine has velocity ratio 3, what did you mean
Answer:
A simple machine having a velocity ratio of 3 simply means that the ratio of the distance moved by effort to the distance moved by load is equal to 3.
Explanation:
A simple machine can be defined as a type of machine with no moving parts but can be used to perform work.
Basically, a simple machine allows for the transformation of energy into work. The six simple machines are;
I. Inclined plane.
II. Screw.
III. Wheel and axle.
IV. Lever.
V. Wedge.
VI. Pulley.
Mathematically, the velocity ratio of a simple machine is given by the formula;
\( Velocity \; ratio = \frac {Distance \; moved \; by \; effort}{Distance \; moved \; by \; load} \)
Hence, a simple machine having a velocity ratio of 3 simply means that the ratio of the distance moved by effort to the distance moved by load is equal to 3.
Density Questions
How many blocks of ice-cream each 10cm x 10 cm x 4cm can be stored in the compartenent of a deep-freeze measuring 40 cm x 40cm x 20cm?
Explanation:
let's take the volume of each first:
ice cream: 10×10×4=400cm^3
freezer: 40×40×20=32,000cm^3
now we just divide: 32000/400=80
Which is an example of a way to conserve energy in a home? *
removing weather-stripping around doorways
Using old light bulbs
O reducing the use of insulation
O replacing old windows with new ones
An example of a way to conserve energy in a home is "Replacing old windows with new ones." The correct option is D.
Conserving energy in a home involves reducing energy consumption and improving energy efficiency. Replacing old windows with new ones is an example of improving energy efficiency.
Old windows can be a significant source of energy loss due to poor insulation and air leaks. By replacing them with new, energy-efficient windows that provide better insulation and minimize air leakage, energy consumption can be reduced, making it an effective way to conserve energy in a home.
A. Removing weather-stripping around doorways: Weather-stripping around doorways helps prevent air leaks, which improves energy efficiency by reducing heating or cooling loss. Removing weather-stripping would result in increased energy consumption, making it an incorrect choice.
B. Using old light bulbs: Old light bulbs, such as incandescent bulbs, are less energy-efficient compared to newer, energy-saving options like LED bulbs. Using old light bulbs would result in higher energy consumption, making it an incorrect choice.
C. Reducing the use of insulation: Insulation is an essential component for energy efficiency in homes. It helps to reduce heat transfer and maintain a stable indoor temperature. Reducing the use of insulation would result in increased energy loss and higher energy consumption, making it an incorrect choice.
Therefore, the correct option is D. Replacing old windows with new ones because it improves energy efficiency and helps conserve energy in a home.
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The siemens, the SI derived unit of electric conductance and admittance (the reciprocal of resistance in ohms), is also known by what three-letter "semordnilap"?
The three-letter "semordnilap" for the siemens, the SI derived unit of electric conductance and admittance, is MES.
Magnetic objects will attract to a magnet even if they are far from it.
Yes or No
Answer:
Yes
Explanation:
tamad ako magexplain
Answer:
Yes
Explanation:
The force exerted by a magnet is called
The push or pull of magnetism
can act at a distance, which means that the
magnet does not have to touch an object
to exert a force on it. When you close the
refrigerator, you feel the pull before the
magnet actually touches the metal frame.
There are other forces that act at a distance,
including gravity and static electricity. Later
you will read how the force of magnetism is
related to electricity. In fact, magnetism is
the result of a moving electric charge.
using the binding energy versus nucleon number, is this a high amount of binding energy per nucleon? group of answer choices
A. yes
B. no
C. unable to determine
D. not applicable
When using the binding energy versus nucleon number, if the amount of binding energy per nucleon is high, the answer is A. yes.
A nucleon is a proton or a neutron, two types of particles present in the nucleus of an atom. When studying nuclei and nuclear reactions, the nucleon is used to represent these particles. Binding energy is the energy that is required to break the nucleus into individual nucleons. A large binding energy per nucleon is a sign of a strong nuclear force, and therefore, a strong nucleus. When the binding energy per nucleon is high, it indicates that the nucleons are tightly bound in the nucleus and that there is a strong force holding them together. As a result, the nucleus is more stable and less likely to undergo nuclear reactions. Answer option A.
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A gannet is a seabird that fishes by diving from a great height. You may want to review If a gannet hits the water at 32 m/s, what height did it dive from? Assume that the gannet was motionless before starting its dive. Express your answer to two significant figures and include the appropriate units. h =
After considering the given data the height from which the gannet dived is approximately 51.84 m.
To evaluate the height from which a gannet dived if it hits the water at 32 m/s, assuming that the gannet was motionless before starting its dive, we can apply the law of conservation of energy, which projects that the initial potential energy of the gannet is equivalent to its final kinetic energy prior to hitting the water. Then, we can write:
\(mgh = (1/2)mv^2\)
Here:
m = mass of the gannet
g = acceleration due to gravity
h = height from which the gannet dived
v = velocity of the gannet just before hitting the water
Considering that the mass of the gannet is 1 kg, and applying substitution of the given values, we get:
\((1 kg)(9.8 m/s^2)(h) = (1/2)(1 kg)(32 m/s)^2\)
\(h = (1/2)(32 m/s)^2 / (9.8 m/s^2)\)
h = 51.84 m
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The complete question is
A gannet is a seabird that fishes by diving from a great height. If a gannet hits the water at 32 m/s , what height did it dive from? Assume that the gannet was motionless before starting its dive.
free fall is possible on lunar but not on earth surface.Why?
Answer:
The earth has more gravity so that means if you jump out of a plane without a parachute u will die. But the moon has less gravity so u will not die when hit ground. But someone can probally explain it better than me.
More gravity equals more speed in some cases like falling
What is an electron?
Answer:
A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
Explanation:
In more simple terms, an electron is a negatively charged subatomic particle.
Hope that helps :)
Answer:
An electron is a particle with negative charge that can be found in the atom, along with neutrons and protons
A student bikes 5.00 km East to school in 30.0 min, realizes he forgot his calculator for physics, spends 30.0 min going back going home, and then races back to school in 27.0 minutes.
1.What is the students total distance traveled ?
2. Determine the students average speed ?
3. What is the students total displacement ?
4. Determine the students average velocity ?
Explanation:
Given data
distance = 5km
time taken to travel to school= 30 min
1. the total distance traveled is
from home to school+ school to home+ home back to school
5km+5km+5km= 15 km
2. Determine the students average speed
average speed is the total distance divided by the total time taken
= (5+5+5)/(30+30+27)
= 15/87 km/min
3 What is the student total displacement
the displacement tells how far a place is hence the displacement is 5km (i.e the school is 5km from his home)
4. Determine the students average velocity
a. speed home to school
v= 5/30= 0.166 km/min
b. school back home
v= 5/30= 0.166 km/min
c. speed home to school
v= 5/27= 0.185 km/min
Average velocity = (0.185 + 0.166 + 0.166)/3= 0.517/3= 0.17 km/min