The diagram represents two small, charged, identical metal spheres, A and B, that are separated by a distance of 2.0 meters. If the two spheres were touched together and then separated, the charge on sphere A would be *
q1= -1.6x10^-6C
q2=+1.0x10^-6 C
d=2m
Final answer is -3.0x10^-7 C, but I don't know why it is like that.
Answers
Answer:
if you are trying to figure out if it is right. I believe it is right (the answer) but trust your instincts go for it.
Explanation:
The charge on sphere A is -3 × 10⁻⁷C.
Distribution of charge:According to the question, there are two identical spheres, sphere A and sphere B with charges
q₁= -1.6 × 10⁻⁶C , and
q₂=+1.0 × 10⁻⁶ C respectively separated by a distance of 2m.
Now, the charges are brought in contact with each other. So the total charge on both the spheres when they are in contact would be the sum of the two charges, that is:
q = q₁ + q₂
q = -1.6 × 10⁻⁶C + 1.0 × 10⁻⁶ C
q = -0.6 × 10⁻⁶C, or
q = -6 × 10⁻⁷C
Since the two spheres are identical, when they are separated from each other, the charge is distributed equally on both of them. So, the charge on each sphere is :
Q = q/2
Q = (-6 × 10⁻⁷C)/2
Q = -3 × 10⁻⁷C
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Related Questions
What do the data tell you about your hypothesis?
State how your hypothesis is either supported OR refuted by the data.
my hypothesis is My hypothesis is a supposition or propose, made on the basis of limited evidence as a starting point for further investigation.
Answers
Answer:
If the data supports the hypothesis, then we consider the hypothesis to be verified and true.
Explanation: hope this helps
Answer:
if the data supports the hypothosys then it's most likely correct
Explanation:
Which of the following statements best describes a planetary system?
A planetary system is made of a central star with several planets and other objects orbiting around it. The planets are bound to their orbits by gravity. Our solar system is an example of a planetary system. There are other planetary systems in the universe.
A planetary system has an inner and outer star that balances the gravitational waves.
A planetary system is made of either a central star or a central planet with several planets and other objects or stars orbiting around it. The planets are bound to their orbits by gravity. Our solar system is an example of a planetary system. There are other planetary systems in the universe.
A planetary system is made of a central planet with outer planets are bound to their orbits by gravity. Our solar system is the only example of a planetary system. There are not any other planetary systems in the universe.
Answers
The statement"A planetary system is made of a central star with several planets and other objects orbiting around it. The planets are bound to their orbits by gravity. Our solar system is an example of a planetary system. There are other planetary systems in the universe." best describes a planetary system. The correct option is A.
What is a planetary system?A planetary system is a collection of celestial bodies that orbit around a central star. The most prominent example of a planetary system is our own solar system, which consists of the Sun at the center and eight planets and various other objects, including asteroids and comets, orbiting around it.
Planetary systems are formed from clouds of gas and dust called nebulae. The collapse of a nebula leads to the formation of a central protostar, which eventually becomes a stable star. As the protostar forms, the surrounding gas and dust flatten into a disk-shaped structure known as a protoplanetary disk. This disk contains the raw material from which planets and other objects will form.
The planets and other objects in a planetary system are held in their orbits around the central star by the force of gravity. In addition to planets, these systems can also contain moons, asteroids, comets, and other objects that orbit around the central star.
Planetary systems have been discovered around other stars, known as exoplanets. Scientists use a variety of techniques to detect these exoplanets, including radial velocity measurements and the transit method, which involves detecting changes in the brightness of a star as a planet passes in front of it.
So, a planetary system is a collection of celestial bodies that orbit around a central star, formed from a collapsing cloud of gas and dust. Our solar system is an example of a planetary system, but many other planetary systems have been discovered around other stars in the universe.
Here in the Question,
Option B is incorrect because a planetary system typically only has one central star, not multiple stars.
Option C is also incorrect because while some planetary systems may have a central planet, the vast majority have a central star. Additionally, the statement about an inner and outer star balancing gravitational waves is not accurate.
Option D is incorrect because there are numerous planetary systems that have been discovered outside of our own solar system. The existence of exoplanets has been confirmed through a variety of methods, including radial velocity measurements and the transit method.
Therefore, option A is the most accurate description of a planetary system as it captures the essential characteristics of a system containing a central star and orbiting planets, held together by gravity. It also acknowledges that there are other planetary systems in the universe beyond our own solar system.
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What does it mean that energy cannot be created or destroyed?
A. Potential energy cannot be transformed into kinetic energy
B. Energy can only be transformed
C. Kinetic energy cannot be transformed into kinetic energy
D. Kinetic energy cannot be transformed into potential energy
Answers
Answer:
D
Explanation:
the reason this is right is because kinetic energy cannot become potential because kinetic is the when something is moving like a roller coaster going down a ramp but it can be converted into it
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Energy cannot be created or destroyed, but it can be transferred and transformed. There are a number of different ways energy can be changed, such as when potential energy becomes kinetic energy or when one object moves another object.
Which object has a volume greater than the volume of a pencil? *
a notebook
b paperclip
c penny
Answers
Answer:
A.
Explanation:
Object has a volume greater than the volume of a pencil is notebook.
What is volume?Volume is a three-dimensional measurement that's used to gauge a solid shape's capacity. It implies that the volume of a closed form determines how much space it may occupy in three dimensions.
Given notebook, paperclip, penny, object has a volume greater than the volume of a pencil is notebook.
Object has a volume greater than the volume of a pencil is notebook.
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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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can anyone help me with this??
Answers
Answer:
its not clear enouph
Explanation:
The handle of a hammer is 20 cm long and the metal end pulls
out a nail from the ground. If the length of the metal end that
touches the nail is 3 cm, what is the mechanical advantage
given by using the hammer's handle?
Answers
Answer:
Given the experimental setup shown below, where should you put object C, ... applies a force of 150 N. What is the mechanical advantage of the hammer? ... Explain why tin snips, designed for cutting metal, have long handles and short blades. ... advantage for scissors, a first-class lever, is the length of the handle divided ...
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.
what is the amount of protons, neutrons, and electrons in the atom to make water
Answers
Answer:
10 protons 8 neutrons 10 electrons
please help me with these two questions... thanks
Answers
20) B because heating it transfers thermal energy and passing a current transfers electrical energy. I think that shining a light for long enough may heat the block up so it could be D but I’m not sure if that’s what it’s asking
If the half-life of iodine-131 is 8. 10 days, how long will it take a 50. 00 g sample to decay to 6. 25 g?
Answers
Answer:
24.4684 days
Explanation:
According to the question the given values are :
T(1/2) for iodine-131 is 5.10 days,
[A]₀ for iodine-131 is 50 grams and,
[A] for iodine-131 is 6.25 grams.
T(1/2)=0.693/k
⇒8.10=0.693/k
⇒k=0.865 .
2.303 log [A]₀/[A]= kt
2.303 log(50.00/6.25)= 0.085×t
⇒t=1/0.085×2.303×log8
t=24.4684 days
Hence, the time it will take to decay is 24.4684 days.
Why is it important to track our carbon and ecological footprint?
Answers
Answer: I got you Fam
Explanation:
it is one competing demand for biologically productive space
Answer:
The carbon footprint is a very important means to understand the impact of a person's behavior on global warming. This is why someone who effectively wants to contribute to stopping global warming, at least on an individual scale, needs to measure and keep track of their personal carbon footprint.
Why is it important to track your ecological footprint?
The Ecological Footprint is a simple metric. It is also uniquely comprehensive. Not only does it measure humanity's demand on our planet's ecosystems, but it is also key to understanding the inter-related pressures of climate change on the natural ecosystems on which humanity depends.
Why is knowing your carbon ecological footprint important?
Knowing your personal or organisational carbon footprint is useful for the following reasons: it enables you to identify and reduce GG emissions, it allows corporations to publish their environmental performance statistics, it can be used as information to raise awareness of environmental costs.
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Pls brainliest...
need help fast!!!! plz
Answers
Where does oceanic and continental crust meet?
Answers
They both meet above the the earths mantle.
If that’s not the answer your looking for please tell me and I will help more. If you have Letter options to choose that have answers. Telling me those answers you have to choose from could help me find the best answer for you
help me pls i need the answer
Answers
CHOSE TWO
PLZ HELP I WILL GIVE BRAINLEST
Answers
Answer: the first and last one
Explanation: hope i helped out :)
Energy can only be converted from one form to another.
Agree/Disagree, why?
Answers
Answer:
Agree - energy can never be created or destroyed, it can only convert from one form to another (this is the Law of Conservation of Energy)
hope this helps! <3
AGREE !
First Law of Thermodynamics: Energy can be changed from one form to another, but it cannot be created or destroyed
How can removing thermal energy afect the state of matter? (Check all that apply)
a). When thermal energy is removed from water vapor the temperature decreases and condensation can occur.
b).When thermal energy is removed from a liquid the particles slow down and a water vapor is formed.
c). When thermal energy is removed from a liquid the temperature decreases, the particles slow down, and freezing occurs forming a solid.
d). When thermal energy is removed from water vapor the particles slow down and evaporation occurs.
Answers
What are carbon dioxide levels like in our atmosphere today?
A. at an all-time high in Earth’s recorded history
B. about the same as it was 1 million years ago
C.at an all-time low in Earth’s recorded history
D.lower than it was 75 years ago
Answers
Answer:
i believe its A.
Explanation:
Data has shown that it has made a high record of 412.5 ppm as of 2020.
Hope I helped :)!
why are mud shoes better then high heels
Answers
Answer:
you can do anyhthing in mud shoes that you cant in high heels duh
Explanation:
Answer:
Because you can dirty them or whatever and it even protect you from bacteria
Explanation:
lets say you got high heels right now on a rainy day you want to take a short cut to a store across you street and you need to walk over mud your heels will be stuck in the mud or even brake
what would u expect the tides to be like during a first quarter moon?
Answers
Answer:
During the first quarter or last quarter phase of the moon, when the sun and moon are perpendicular (at right angles) to each other in relation to the Earth, the tidal gravitational pulls interfere with each other, producing weaker tides, known as neap tides.
Explanation:
Hope this helps.
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What would happen to the digestion process if enzymes were not present
Answers
Answer: It would take 2.3 billion years for the biological reaction without the presence of enzymes. It’s because, without them, your body can’t break down foods so that nutrients can be fully absorbed. Every organ, every tissue, and every 100 trillion cells in our body rely upon the reaction of metabolic enzymes and their energy component.
Explanation:
I hope this helps
Without enzymes, the body would not be able to break down complex carbohydrates, proteins, and fats into their component molecules. This means that these nutrients would not be absorbed by the body and would be excreted as waste.
Additionally, the lack of enzymes would make it difficult for the body to digest and absorb vitamins and minerals. This could lead to malnutrition and other health problems over time.
Overall, the absence of enzymes from the digestive process would severely impair the body's ability to extract nutrients from food and could have negative consequences for overall health and well-being.
Select the statement(s) that accurately characterize sound and light waves
sound and light wave are a repeating disturbance
Both sound and light waves need a medium to travel.
Sound and light travel in waves.
Sound and light waves carry energy.
Sound and light waves carry matter.
Answers
Answer:
All but number 5
Explanation:
A wave is a repeating disturbance or movement that transfers energy through matter or space, sound cannot travel through a vacuum and neither can light. light and sound travel in waves which is what makes them a repeating disturbance
All of the above except for 5
Explanation:
Please help me I need it ASAP! PLEASE!!
Recall that kinetic energy is the energy of motion. Use the information provided for each soccer ball in the image below to calculate the kinetic energy of each soccer ball (Round to the nearest hundredth). Use K.E. = 1/2 m v2 to got your answer.
Answers
Answer:
kinetic energy is the answer
how does a free fall drop ride work with newtons 3rd law?
Answers
Answer:
A falling object is in free fall when the only force acting on the force is gravity.
Explanation:
Because the only force acting on you is gravity, the scale no longer is pushing your cart up. Or in other words - your no longer pushing down onto the scale.
Tanya planted seedlings in her garden over the weekend. The instructions that came with the seedlings stated that they need to be planted 0.2 meters apart. Tanya has a measuring tape that has values in centimeters. Help Tanya convert meters to centimeters.
Determine the ratio to use: .
Tanya should plant the saplings 20 centimeters apart.
1 meter is equal to 100 centimeters.
Multiply the given value by the ratio: .
Answers
Answer:
Explanation:
1 meter = 100 cm
1 cm = 10 mm
Then,
0.2 m * 100 cm / 1 m = 20 cm
This does not seem like a physics question ??
Create your own real world example of how the application of they scientific discovery has help create a new technology
Answers
Scientific discovery has helped create new technology which is pretty evident from the different technological products we are using in our day-to-day life such as mobile phones, computers, nuclear power plants, and other technological advancements.
What is science?Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.
A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals. It is both a process, a product, and an institution.
The various technical items we use in our daily lives, such as mobile phones, computers, nuclear power plants, and other technological breakthroughs, are very strong evidence that scientific research has contributed to the creation of new technology.
Thus, by the above-mentioned example, we can say that scientific discovery has helped create new technology.
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What type of rock forms when rocks melt, cool, and then harden?
Igneous
Metamorphic
Shale
Sedimentary
Answers
Igneous rocks (1st option) are formed when the rocks melt, cool & then harden. Their formation takes place over a long period of time.
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What happens when you increase the amplitude of a sound?
it makes the sound travel faster
it makes the sound louder
it increases the wavelength of the sound
it increases the frequency of the sound
Answers
Answer:
It increases the wavelength of the sound and gets softer if the amplitude decreases
Explanation:
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Which material would be a suitable insulator?
O silver
O gold
O copper
O rubber
Answers
Answer:
D, rubber
Explanation:
Metals have free electrons, and are very bad as insultators. Metals conduct electricity very well. On the other hand, rubber has no free electrons and does not conduct electricity very well
Answer:
Rubber
Explanation:
Imagine yourself using a frying pan. Most times, the handles are wooden or rubber because they insulate heat. The same applies to electricity as well. The only viable answer here therefore is rubber.
Good luck! I hope this helped!