Determine the ratio of the resistivity of pure water to silver?
3 x 10 11.1
1:3
1:3 x 10 11.1
Answers
Answer:
\(3 \cdot 10^{11} : 1\)
Explanation:
Silver is a generally excellent conductor, this implies its resistivity is low (from table, we can check the exact worth i.e \(\rho_s = 1.6 \cdot 10^{-8} \Omega m\))
Pure water, rather, is an extremely awful conductor, this implies its resistivity is exceptionally high, of order of \(k \Omega \cdot m (10^3 \Omega m )\)
Indeed, even without knowing the exact estimation of the pure water resistivity, we can appraise the proportion between the pure water resistivity and the silver resistivity by looking at the two orders of magnitude:
\(r= \frac{10^3 \Omega m}{10^{-8} \Omega m} \sim 10^{11}\)
Therefore, we can say that the correct answer is
\(3 \cdot 10^{11} : 1\)
Related Questions
Please help and serious answers only please!!
Answers
Answer:
#9: Tisa's average speed is 6 meters per second
Lily's average speed is 6 meters per second
#10: Alesia is fastest during the first hour (the first decrease)
Explanation:
rly don't have time to explain if u want me to comment and I'll come back
<3
PLEASE HELP!!!!
refer to the diagram below, which of the following is the best predictor of what would happen if the distance across section 1 in the diagram were to decrease.
a. the energy would decrease
b. the frequency would increase
c. the amplitude would decrease
d.the wavelength would increase
Answers
Answer:
B
Explanation:
As the wavelengths get closer, the frequency increases.
ex: Ultra Violet has less frequency than xray's because the distance between the waves are longer.
A pendulum oscillates 40 times in 4 seconds. Find it's time period and frequency.
Explanation needed!
Don't spam!
Answers
\(\Large\sf\underline\blue{Question\:given:}\)
A pendulum oscillates 40 times in 4 seconds. Find it's time period and frequency.
\(\Large\sf\underline\pink{To~ find:-}\)
The time period Its Frequency\(\Large\sf\underline\red{Solution ~1}\)
Frequency of oscillation is defined as the number of oscillation of a vibrating body per second.It is given by
\(\sf{Frequency=} \\ \dfrac{Number ~of~ oscillation}{Time}\)
\(=\dfrac{40}{4}\)
\(\sf{=10 Hz}\)
\(\Large\sf\underline\green{Solution ~2}\)
The time period
The time required to complete one oscillation is known as Time period.
It is given by the inverse of the frequency.
\(\sf{Time~Period=} \\ \dfrac{1}{Frequency ~of~ oscillation}\)
\({=}\dfrac{1}{10}\)
\(\sf{=0.1 s}\)
________________
Therefore the frequency is \(\sf{=10 Hz}\)
And the time period is \(\sf{=0.1 s}\)
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Which theory explains the formation of the universe?
Hubble Theory
Cosmic Background Theory
Big Bang Theory
Redshift Theory
Answers
PLEASE HELP ON QUESTION ASAP !
Hi please help on question.If you get answer correct is be willing to give brainliest,a thanks, five stars and 10pts.
My question:
As an analogy of a circuit with resistance, think of an obstacle race . Which parts of a circuit do the obstacles represent? which part of the circuit do the people respresent?
Answers
In an analogy of a circuit with a resistance to an obstacle race, we can consider various elements of the race as representative of different components of the circuit.Obstacles, Track or Route, Participants, Start and Finish Line.
Obstacles: The obstacles in the race represent the resistors in a circuit. Just as resistors impede the flow of current in a circuit, obstacles in the race create hurdles that slow down the participants. The difficulty or magnitude of the obstacles can be equated to the resistance value of the resistors in a circuit.
Track or Route: The race track or route itself can be seen as the conductive path in a circuit. It provides a pathway for the participants to move and complete the race. Similarly, the conductive path in a circuit allows the flow of current from the power source to the load.
Participants: The people participating in the race represent the flow of electrons in a circuit. Just as the participants move through the obstacles in the race, electrons move through the resistors in a circuit. The rate at which participants complete the race can be compared to the current flowing through the circuit.
Start and Finish Line: The start and finish line of the race correspond to the terminals of a circuit. The start line represents the positive terminal, where the participants begin their journey, and the finish line represents the negative terminal, where the race concludes.
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Answer: As an analogy of a circuit with resistance, the obstacles in an obstacle race represent the resistance in a circuit. The parts of the circuit that the obstacles represent are the resistors. The people in the obstacle race represent the current in a circuit. The current is the flow of charged particles (such as electrons) in a circuit. In an obstacle race, the people are moving through the obstacles, just as the charged particles are moving through the resistors in a circuit. The obstacles slow down the people, just as the resistors slow down the flow of charged particles in a circuit.
Explanation:
The human brain can handle only one attention-consuming task at a time
T
F
Answers
Answer:
that statement is true, trust me lol
Where in the world is there a Continental Crust with Continental Crust collision?
Choices:
between the Nazca and Pacific Plates
between the Indian and Eurasian Plates
between the North American and Eurasian Plates
Answers
Answer:
c
Explanation:
betweeb the north american and eurasian planes
Explanation :
Explain what happens as the heart grows bigger.
Answers
Initially, the heart may grow bigger as a compensatory mechanism to try to keep up with increased demands for blood and oxygen. For example, if a person engages in regular exercise, their heart may enlarge to accommodate the increased demand for blood and oxygen to the muscles.
However, if the heart continues to grow over time, it can become less efficient at pumping blood and may develop structural abnormalities that increase the risk of heart failure, arrhythmias, and other complications.
In some cases, cardiac hypertrophy may be reversible if the underlying cause is treated, such as by managing high blood pressure or heart disease. However, if left untreated, hypertrophy can lead to irreversible damage to the heart muscle and may require more aggressive interventions, such as medication, surgery, or other medical procedures to manage the condition.
Which of the following forces has not changed Earth's surface?
folding
erosion
weathering
gravity
Answers
Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.
Explanation:
Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answers
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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An object wants to maintain its state of motion because it has mass.
another true or false
Answers
Answer:
True
Explanation:
because its easy and its true
Please select the word from the list that best fits the definition
Gives a pictorial indication of how far and fast an object has moved
a. speed
b. velocity
c. frame of reference
Answers
Answer: the answer is C
Explanation:
hope it helps friend :)
hen catching a football, your fingers should shape a
a W
b M
c Triangle
d Open circle
PLEASE ANSWER ASAP
Answers
Answer:
c.triangle
Explanation:
this is because I played football in be and the teacher told up it should be a triangle
Which is a component of skill-related fitness?
Flexibility
Reaction time
Muscular strength
Body Composition
Answers
Which of the following statements is correct with regard to convection currents?
A. Convection currents in magma are caused by color differences.
B. Convection currents in magma drive the movement of tectonic plates.
C. Convection currents in magma are a result of how the magma is formed.
D. Convection currents in magma play a role in the movement of Earth's inner core.
Answers
Answer:
A.convection currents in magma are caused by color differences
The thermal conduction we find that the correct answer is:
a) Convection currents in magma are caused by hot differences.
Thermal conduction occurs in three ways
Conduction. When two material are in thermal contact with different temperatures, energy flows from the hottest material to the coldest, in this there is no material movement Radiation. Due to the absorption of radiant energy between bodies with different temperatures, it does not need physical contact, which is why it is the form of transmission in a vacuum. Convention. This occurs when a mass of liquid or gas is in contact with another colder mass and the material of the hotter mass moves upward in the cold mass, this form of heat transfer includes the movement of material, it is very important in liquid and gases.
The magna of volcanoes is a quantity of matter in a liquid or plastic state due to the thermal energy of the interior of the earth, when this mass reaches a colder and fissured area, it can rise towards the coldest part, breaking and deritating. the materials in its path.
Let's annotate the different statements
a) True. According to the explanation, the temperature of the magna causes it to rise due to convection currents.
b) False. The cracks are those that help the convection currents, in general the movement of the plates creates cracks
c) False. The movement of the plates is independent of the convection of the magna which is approximately vertical
d) False. The core of the planet is very deep (> 4000 km) and the magna currents reach about 14 to 20 km
In conclusion using the forms of thermal conduction we find that the correct answer is:
a) Convection currents in magma are caused by hot differences.
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Lab Report
Motion and Forces
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U4_ Lab_MotionAndForces_Alice_Jones.doc).
Introduction
What was the purpose purpose of the experiment?
The purpose of the experiment is to test the hypothesis.
What were the independent, dependent, and control variables in your investigation? Describe the variables for each part of the experiment.
Write a hypothesis based on observations and scientific principles.
Type your answer here:
Experimental Methods
What tools did you use to collect your data?
Questionnaires and observations.
Write your procedure. List each step so that another student could follow the procedure and repeat your experiment.
Type your answer here:
Data and Observations
Record your observations.
Type your answer here:
Conclusions
What conclusions can you draw about how the sum of forces acting on an object affect its motion? Write an evidence-based claim.
Type your answer here:
Which mass, A, B, or C, was the greatest? Use the observations from your experiment and your knowledge of Newton’s laws of motion to write an evidence-based claim.
Type your answer here:
Make a model that shows the forces acting on two blocks on a flat, frictionless surface:
A 1 N block at rest
A 1 N block with 2 N of force applied in one horizontal direction
Include arrows to represent the forces and labels to indicate the magnitude of each force. Use your model to compare and explain the motion of each block.
Type your answer here:
Answers
Answer's C
Explanation: The matter that surrounding this whole planet or time and frequencies the motion and forces that people can't determine unless made a hypothesis
A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal. Which question will best help the student classify the material? A. Is the material malleable or ductile? B. Does the material feel hard to the touch? C. Will the material float in water? D. Does the material feel rough or smooth?
Answers
Answer: A.) Is the material malleable or ductile.
Explanation: It the material is malleable, then it wouldn’t be a metal due to it changing shape.
The question that will best help the student classify the material is, Option A. Is the material malleable or ductile
A malleable material is one in which a thin sheet can be easily formed by hammering. Gold is the most malleable metal. In contrast, ductility is the ability of a solid material to deform under tensile stress.
Metallic Elements are Malleable and ductile and Conduct heat and electricity Nonmetallic elements are Brittle, hard or soft and Poor conductors of electricity.Learn more:
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mountains forming today due to movement of the plates and mountains forming in the past due to movements of the plates would be an example of ________?
a. a plateau
b. an unconformity
c. law of gravity
d. principle of uniformitarianism
Answers
Answer: d.
Explanation:
letterA., please see attachment
Answers
example of an interaction between which two
spheres? Hydrosphere and atmosphere.
In which state is the best known source of petrified wood located? A Arizona B Alaska C California D Colorado
Answers
Answer:
Arizona.
Explanation:
Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands.
Answer ASAP! but only if you know 100%, and whoever gets it right can have brainliest
Answers
Answer:
You could find billions of stars in a galaxy, hope this helps.
The answer is billons, 100 billon to be exact.
Reasoning:If you looked up in the night sky, you'd see so many stars. Everyone else looking up can see them too. Weather they are in Canada, or Flordia. There isnt just 100, or 1000 or 1 millon, there are billons.
Therefore, your answer is D. Billons.
If this helped then..
Give it a thanksGive it a good rating :)This has been..~NatLikesAnime~
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A girl rides her scooter to school, a total distance of 4.5km. She has to slow down twice to cross busy streets, but overall the journey takes her 0.65h. What is her average speed during the trip?
Answers
Answer:
6.93 km/h
Explanation:
To calculate her average speed, we need the "speed" formula, which is:
average speed = distance / time
You plug in your numbers and it will give you the answer.
Speed = 4.5km/0.65hr
= 6.923 km/h
Which part of the water cycle is released by trees?
Answers
Answer:
mark me as brainliest plsss !! :)
Explanation:
transpiration
Forests are a critical cog in the global water cycle: Trees pull water from the ground and release it into the atmosphere as vapor through pores in their leaves in a process called transpiration, which can drive temperatures and rainfall across the globe.
Explanation: Forests are a critical cog in the global water cycle: Trees pull water from the ground and release it into the atmosphere as vapor through pores in their leaves in a process called transpiration, which can drive temperatures and rainfall across the globe.
Hoped this helped :))
Please can someone help me need help with these 5 questions!! and QUICK!
I need it done REALLLLLYYYYY soon!! (more like now but-)
(20 points for the answer to all of them)
Answers
Answer:
10. dependent as a change has occurred which has affected something else which is measurable.
11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.
12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.
13. Dependent as the animal's and plants' survival is reliant on the environment.
14. Dependant as the plants require sunlight for photosynthies
Answer:
All are dependent
Explanation:
Stars appear to move at _______ through the sky every night.
A.
unpredictable speeds
B.
different speeds
C.
the same speed
D.
a very fast speed
Answers
Why is it important for a peer to review your writing, in addition to reviewing it yourself?You still have the ideas in your head, so you may not notice when they did not make it onto the page.
You will ignore all of the problems in your report because you won’t want to fix the problems.
All of the above
A peer has a better understanding of your topic than you do and can find mistakes.
Answers
Answer:All of the above
Explanation:
How much is the mass of aluminum with a volume of 1 m3 less than the mass of lead of the same volume?
Answers
Answer: the masses:mA=mFe or ρA1VA1=ρFeVFethen use the volume of a sphere. By substitution. The answer is (2.70∗103kg/m37.86∗103kg/m3)(2.00cm)3=23.3cm3
Explanation: you must go from left to right when solving substitutuing the first side then dividing
A couple wants to build a holiday cottage, the cottage is not connected to an electricity grid, but the cottage is next to a small river. The river is always flowing and never dries up, the weather is often windy.
Which one should they get to receive energy.
a wind turbine
solar cells
Answers
Answer:
Wind turbine since the place is often windy
Outside the Solar System is there any gravitational pull from the Sun?
Answers
If the net force on an object is zero, then the object has
a
unbalanced forces
b
balanced forces
c
reaction forces
d
action forces
Answers
Answer:
Balanced Forces :D
Explanation: