If you touch a conductor through which electricity flows with an insulator, the likelihood of receiving a shock depends on several factors, including the voltage and current of the electrical source, the amount of insulation present, and how well the insulation is able to insulate from the electricity.
Insulators are materials that do not conduct electricity and are commonly used to provide a barrier between humans and electrical conductors to prevent electrical accidents. When an insulator is used to touch a conductor through which electricity flows, the insulator acts as a barrier and prevents the current from flowing through the material and into the body.
However, if the insulation is inadequate or damaged, or the voltage of the electrical source is high enough to overcome the insulating properties of the material, a shock can occur. The shock occurs when the current passes through the body, causing damage to organs, muscles, and nerves.
Therefore, it is important to ensure that proper insulation practices are followed when working with electrical conductors, and to use insulation materials that are sufficient to protect against the voltage and current levels of the electrical source being used. Generally, it is recommended to avoid touching electrical conductors altogether, as the risk of electrical accidents is always present.
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No, you will not receive a shock if you touch a conductor through which electricity flows with an insulator. An insulator is a material that does not conduct electricity, meaning it does not allow the flow of electric current.
It has high resistance and acts as a barrier, preventing the transfer of electrons. Therefore, when you touch a conductor with an insulator, the insulator acts as a protective layer that blocks the flow of electric current and prevents it from reaching your body. As a result, you will not experience a shock. However, it is important to note that the effectiveness of the insulator in preventing a shock depends on its quality and condition. If the insulator is damaged or has a low resistance, it may not provide adequate protection, and there is a risk of electric shock. Additionally, it is crucial to follow safety protocols and avoid touching conductors or working with electricity unless you are trained and have the necessary knowledge and equipment to do so safely.
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Is it possible for an human body to be transparent or invisible?
Answer:
Yes, it is possible.
Explanation:
Hope this helps! :)
Answer:
it's possible since scientists have already progressed to making fully transparent & invisible human organs.
3. The distance from a makeup mirror to C (the radius of curvature) is 70 cm. How far from the mirror
can a person be and still see an upright, magnified image?
The far point from the mirror can a person be and still see an upright, magnified image is focus i.e. 35cm from mirror.
What is radius of curvature?The mirror is made out of a sphere which has its radius called the radius of curvature.
The focal length f is half of the radius of curvature R of the lens.
Given the radius of curvature is 70cm, then focal length will be 70/2 = 35cm.
The makeup mirror is a concave mirror which forms real and upright images. The magnified images are obtained when the object is placed between focus and mirror.
Thus, the far point is focus i.e. 35cm from mirror.
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What did hegel and kant have in common? they both were determined to disprove marxist theory. they both thought that only history could reveal universal truths. they both refused to completely abandon the role of religion in their work. they both believed that perception was an important element in understanding reality.
Answer:
The two philosophers furthermore seem to share the same conception of the conditions of human freedom. For Hegel as well as Kant, a theory of morality and political right devoted to advancing the cause of freedom must require more than just the absence of obstacles preventing the satisfaction of our animal passions.
Explanation:
Hope that help ;)
a racing car has a uniform acceleration of 5 metre per second square what distance will it cover in 10 seconds after the start
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Which type of radiation is associated with high frequency waves?
Answer:
Gamma rays
Explanation:
have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.
Ph11_UnitPacket2019
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3. A ray of light travels from air into a liquid. The ray is incident upon the liquid at an angle of 30.0 degrees
The angle of refraction is 19.9º.
a. What is the index of refraction for the liquid? 1901
1999
thin liquid could be.
Let's see
Use snells law
[tex]\\ \rm\Rrightarrow \dfrac{n_1}{n_2}=\dfrac{sini}{sinr}[/tex]
[tex]\\ \rm\Rrightarrow \mu=\dfrac{sin30}{sin19.9}[/tex]
[tex]\\ \rm\Rrightarrow \mu=0.5/0.34[/tex]
[tex]\\ \rm\Rrightarrow \mu=1.47[/tex]
It may be glass
200 N of force is applied to an object causing it to accelerate at 10 m/s^2. What is the mass of the object?
[tex]~~~~F=ma\\\\\implies m = \dfrac{F}a = \dfrac{200~ N}{10~ ms^{-2}} = 20~ \text{kg}\\\\\text{The mass of the object is 20 kg.}[/tex]
What does nuclear fission have to do with the birth of stars?
Answer:
Fission is the process by which large nuclei (like Uranium) split apart releasing energy. Fusion is the joining of nuclei to make larger nuclei, with the release of energy. A ball of contracting interstellar gas becomes a star like the Sun when fusion reactions start in its center. Then, we say "a star is born."
Answer: When light element atoms are crushed under enough pressure for their nuclei to fuse, a star is formed. All stars are the consequence of a balance of forces: gravity compresses interstellar gas atoms until fusion reactions begin.
Explanation:
What are challenges faced by both modern and ancient engineers?
Answer:
Climate Chrises
Explanation:
What particles bond together to
form molecules?
A. Atoms
B. Neutrons
C. Compounds
D. Protons
Answer:
atoms bond together and forms molecules
Answer:
Atoms
Explanation:
this is because when atoms join or bond together forms a molecule
What observational fact convinces astronomers that the source of energy in a typical quasar is physically very small?.
Answer:
An extreme redshift of emission lines that indicated high recessional
Why can you get a shock if you touch a metal doorknob after walking across a wool carpet? (1 Point) You have gained electrons; the doorknob has no electrons. You have gained neutrons; the doorknob has fewer electrons. You have lost electrons; the doorknob has many electrons. You have gained electrons; the doorknob has many electrons.
Why can you get a shock if you touch a metal doorknob after walking across a wool carpet is because you have gained neutrons; the doorknob has fewer electrons. This is further explained below.
What are electrons?Electrons can be defined as a stable subatomic particles with a negative electrical charge that is found in all atoms and serves as the major carrier of electricity in solids.
In conclusion, You have an unbalanced charge, while the doorknob is neutral. you have gained neutrons; the doorknob has fewer electrons.
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EDGE— Sometimes doctors have difficulty seeing tumors on images of the brain when they are very small. Which form of nanotechnology is most likely to help improve brain imaging?
Dendrimers are the form of nanotechnology is most likely to help improve brain imaging.
What is nanotechnology?Nanotechnology is the near-atomic manipulation of matter to create new structures, materials, and gadgets.
The technique offers scientific improvement in a variety of fields, including medical, consumer goods, energy, materials, and manufacturing.
Dendrites are a kind of nanoparticle that has been studied extensively for a variety of medicinal applications, including medication administration, imaging, and diagnostics in the brain.
Hence,dendrimers are the form of nanotechnology is most likely to help improve brain imaging.
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Answer:
B. Quantum Dots
Explanation:
Nanotechnology with quantum dots allows for better imaging while examining the body.
What is potential energy?
Energy from chemicals
Energy that is stored
Energy from light
Energy of motion
Answer:
stored
Explanation:
P. E . = m g h
represents STORED energy in the form of the height * acceleration of gravity * mass
12. A child touches the metal leg of a chair. She says "The
cold is moving to my hand!" How would you (gently) correct
the child in physics terms
A child touches the metal leg of a chair. The temperature of metal leg is moving to her hand.
What is temperature?The temperature is the degree of hotness or coldness when an object is touched.
The metals are generally have less temperature compared to the surrounding temperature. When a child touches the leg of a metal chair, she feel cold, but the physical term is temperature which is moved to her hand.
Thus, temperature of metal leg is moving to her hand.
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Match each type of heat transfer method with its description.
Match each type of heat transfer method with its description.
Conduction | Convection | Radiation
relates to density differences within fluidsdoes not require a medium or physical contact to transfer heat. occurs during physical contact between solid objects not in thermal equilibriumAnswer↷Conduction ↪ occurs during physical contact between solid objects not in thermal equilibrium.
________________________________
Convection↪ relates to density differences within fluids.
________________________________
Radiation ↪does not require a medium or physical contact to transfer heat.
________________________________
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A student says that the two terms speed and frequency of the wave refer to the same thing. What is your response?
Answer:
He is wrong!
Explanation:
Frequency refers to how many wave lengths pass in a second and speed is how fast the wave is traveling for example the speed of light goes really fast but has a mid-level frequency.
Hope this helps! ;-)
A twirler’s baton is 0.76 m long and spins around its center. the end of the baton has a centripetal acceleration of 47.8 m/s2. how long does it take the baton to complete one spin? 0.31 s 0.56 s 4.3 s 70 s
The time it takes the baton to complete one spin is determined as 0.56 s.
Time of motion of the baton
The time of motion of the baton is calculated as follows;
a = 4π²R/T²
where;
R is radius of the wire = ¹/₂(0.76) = 0.38T² = 4π²R/a
T² = (4π² x 0.38)/47.8
T² = 0.3138
T = 0.56 s
Thus, the time it takes the baton to complete one spin is determined as 0.56 s.
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You are talking to your grandmother—who grew up in the 1960s—about climate change. She asks you a lot of questions about the issue, and in the end, isn’t sure she believes it to be a problem. Upon reflection, what belief about climate that was popular in the 1960s might have influenced your grandmother’s conclusion that she isn’t sure climate change is a problem?
A.
Climate only consisted of temperature, rather than the modern belief that climate includes other aspects.
B.
The Earth had four climate stages, and we are not due for a fifth for 10,000 years.
C.
Climate change happened over hundreds and thousands of years, not quickly.
D.
The little ice age was still happening, so our temperatures should be going down.
When scientists talk about climate, they usually mention averages of rainfall, temperature, humidity, sunshine, wind, and other climatic influences that occur over a long period of time in a particular location.Thus option A is correct.
What climate only consisted of temperature?High latitude polar and arctic air masses (60° N and S and higher) regulate climate. These climates are distinguished by low temperatures, frequent precipitation, and an unexpectedly wide variety of subtypes.
A climatic data element, such as precipitation, temperature, wind speed, or humidity, is a measured characteristic that aids in describing the climate of a particular place or region.
Therefore, Climate only consisted of temperature, rather than the modern belief that climate includes other aspects.
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What label should mateo place in the marked cell? uses electrical energy provides electrical energy measures electric current controls electric current
The product label which Mateo should place in the marked cell is that it: B. provides electrical energy.
What is a product label?A product label refers to a paper-document which contains information about the chemical elements, nutrients, and other compounds that are present in a product and its function.
In this scenario, the product label which Mateo should place in the marked cell is that this product was designed and developed to provide electrical energy, based on the electrical symbol for battery shown in the image attached below.
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ILL GIVE BRAINLIEST I PROMISE!
Option C, speed of light will increase as the light rays moves from water to air.
What is refraction of light?The refraction of light is the change in speed of light when it moves from one medium to another.
Light travels faster when it moves from a denser medium to a less dense medium while the speed of light decreases when light passes from a less to a more dense medium.
Water is more dense than air, thus speed of light will increase as the light rays moves from water to air.
Option C depicts increase in speed from water to air.
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Calculate the frequency of a wave which goes through 10 cycles in 5 s
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A 0.50 kg lead ball at 45 c is dropped into a calorimeter with water at 20 the final temperature of the ball-water system is 25c, what is the mass of the water? consider specific heat capacity of led = 128 / k * g degrees * c and specific heat capacity of water=4186 //kg^ c
Answer:
.0612 kg
Explanation:
I think your spec heat for lead should be 128 j /kg-K
Final lead temp is the same as the water 25 C Note that 1 K = 1 C degree
so lead goes from 45 to 25 C (or difference of 20 K)
Heat given up by the lead =
.5 kg * (20 K) * 128 j/ kg -C = 1 280 j
this heat is GAINED by the water going from 20 to 25 C
x kg * (5 C ) (4186 j/kg-C ) = 1 280 j
x = .0612 kg
While unearthing ancient pottery in the gobi desert, an archaeologist discovers a pot containing a large amount of naturally radioactive americium-241, which experiences alpha decay.
the archaeologist needs to protect himself, but also doesn't want to overheat in the desert sun. in addition to a facemask, what is the most appropriate safety precaution that the archaeologist should take to protect against the alpha particles without overheating?
The most appropriate safety precaution that the archaeologist should take to protect against the alpha particles without overheating by wear a pair of normal leather gloves. Option D is correct.
What is radioactivity?
The act of producing radiation spontaneously is known as radioactivity. This is accomplished by an unstable atomic nucleus that want to give up some energy in order to move to a more stable form.
Radiation is being employed to assist humanity in medical, academia, and industry, as well as to generate power.
Radiation is also important in agriculture, archaeology, space exploration, law enforcement, geology a variety of other fields.
The most appropriate safety precaution that the archaeologist should take to protect against the alpha particles without overheating by wear a pair of normal leather gloves.
Hence, option D is correct.
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is a superheated cloud of gas and dust swirling around a massive object (usually a black hole or neutron star) this cloud can reach incredible speeds and temperatures as gravity causes it to build up more and more friction, eventually releasing x rays.
a. Nebula
c. Accretion Disk
b. Proto-star
d. White Dwarf
A superheated cloud of gas and dust swirling around a massive object (usually a black hole or neutron star) is called an accretion disk. The correct option is c.
What is accretion disk?Accretion disk is a heavy object surrounded by flow of gas, plasma, dust, or particles. The materials surrounding the heavy object orbiting in the gravitational field of the object that loses energy and angular momentum as it slowly spirals inward.
This cloud can reach incredible speeds and temperatures as gravity causes it to build up more and more friction, eventually releasing x rays.
Thus, accretion disk is a superheated cloud of gas and dust swirling around a massive object.
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The diagram shows different body planes.
X: frontal; Y: sagittal; Z: transverse
X: sagittal; Y: frontal; Z: transverse
X: transverse; Y: sagittal; Z: frontal
X: frontal; Y: transverse; Z: sagittal
The diagram shows different body planes. X shows sagittal,Y shows frontal and Z shows transverse axis. Option B is correct.
What is frame of reference?A frame of reference is a mathematical and physical coordinate system whose origin, direction, and scale are given by a collection of reference points.
1. Frontal Plane divides the body into front and posterior sections.
2. The Sagittal Plane divides the body into left and right halves.
3. The transverse plane divides the body into superior and inferior halves.
The diagram shows different body planes. X shows sagittal,Y shows frontal and Z shows transverse axis.
Hence,option B is correct.
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what is importance of powder painting?
Answer:
It provides a more durable finish than liquid paints can offer, while still providing an attractive finish
Which event in the history of black holes happened after Einstein's theory of general
relativity was published in 1915?
A: John Michell coined the term “black holes.”
B: Pierre-Simon de Laplace mentioned the idea of black holes in a written work.
C: Karl Schwarzschild correctly analyzed the relationship between the size of a black hole and its mass.
D: John Wheeler concluded that if black holes did exist, light could not escape them.
Answer:
C: Karl Schwarzschild correctly analyzed the relationship between the size of a black hole and its mass.
Explanation:
Karl Schwarzschild correctly analyzed the relationship between the size of a black hole and its mass. The correct option is C.
What is Karl Schwarzschild's theory?A black hole is an area of spacetime in which gravity is so powerful that nothing, not even light or other electromagnetic waves, can escape. According to general relativity theory, a sufficiently compact mass can bend spacetime to generate a black hole.
Karl Schwarzschild, a German physicist, was the first to "find" black holes. In 1915, he proposed a general relativity solution that was applicable to the simple (i.e., nonrotating, uncharged, and boring) example of a perfectly spherical object contained in otherwise empty space.
These suggestions are now known as the Schwarzschild radius and the singularity. Every item is allocated a Schwarzschild radius, which is determined by the object's mass. Gravity's behaviour begins to become strange within this radius.
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PLEASE HELP:
Calculate the net force on the box shown in the picture:
Determine the DIRECTION that this box will move once the force is exerted on it.
Determine whether this is a balanced or unbalanced force and what direction the box moves.
ill give u brainliest :)
Answer:
17N
Explanation:
the side with most net force is going to be deducted by the side with the least net force.
