Answer:
D
Explanation:
"Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges."
Source:
https://www.britannica.com/science/Coulombs-law
If the student brings two negatively charged balloons closer to each other magnitude of the electrostatic force increases and they will repel each other. The Correct option is D.
What is Electrostatic force?Electrostatic force is a force of attraction or repulsion between two unlike or like charges respectively. when like charges come closer to each other, they gets repel by one another and it gets attracted for unlike charges. Force of attraction or repulsion between two point charges are given by coulomb's law, which states that " The force of attraction or repulsion between two charges are directly proportional to product of magnitude of two charges and inversely proportional to square of distance between them.
Charged bullions has charges accumulated on the surface. when two negative charged balloons comes closer they gets repelled each other.
Hence option D is correct
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1) What is mitosis? Give an example of mitosis occurring.
2) What is meiosis? Give an example of meiosis occurring.
Answer:
a type of cell division that results in two daughter cells, examples of cells that are produced through mitosis include cells in the human body for the skin, blood, and muscles
Hypothesis (5 points)
In this section, please include the if/then statement you developed during your lab activity. This statement reflects your predicted outcome for the experiment.
Skilled Scientist level from Rubric: The hypothesis is reasonable and demonstrates understanding.
Which task and distance do you think you can perform the fastest?
If I (choose one: hop, walk backwards, walk forwards, speed walk) then I can travel the fastest.
Answer:
pretty sure the answer is speed walk, hope this helps
A student rubs a rubber rod with fur, producing a negative charge on the rod. The student then touches the rod to a hollow, neutral metal sphere that stands on an insulating plastic stand. This transfers negative charges from the rod to the sphere: Which statement best predicts what will happen to the charge, and why?
A It will distribute itself evenly over the surface of the sphere, because like charges repel and the sphere is a conductor.
B It will remain at the point of contact between the rod and the sphere, because resistance in the metal prevents the charges from easily moving.
C It will slowly drift to the bottom of the sphere, because the charges rapidly attach to individual atoms, making them slightly heavier than surrounding atoms.
D It will quickly spread to the air around the sphere, because it will seek to occupy as large a volume of neutral matter as possible.
Answer:
B It will remain at the point of contact between the rod and the sphere, because resistance in the metal prevents the charges from easily moving.
Explanation:
The rubber rod will distribute itself evenly over the surface of the sphere, because like charges repel and the sphere is a conductor. So, the correct option is A.
What is Conductor?A conductor is defined as an object or type of material that allows the flow of charge in one or more directions where materials made of metals are common electrical conductors. The property of conductors that allows them to conduct electricity is called conductivity while the flow of electrons in a conductor is called electric current.
In the given example, the rubber rod will distribute itself evenly over the surface of the sphere, because like charges repel and the sphere is a conductor. Some common conductors examples are copper, aluminum, gold, and silver.
Therefore, the correct option is A.
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what factors are affected by the petrol crisis ?
Explanation:
Crude Oil Costs. Crude oil pricing is often what influences heating oil prices the most. ...
Supply and Demand. ...
Futures and Commodities Traders. ...
Changes in the Energy Industry. ...
Seasonal Demands. ...
The Weather. ...
Natural Disasters and Politics. ...
Your Neighborhood.
Answer:
1. Crude Oil Costs. Crude oil pricing is often what influences heating oil prices the most. 2. Supply and Demand.3. Futures and Commodities Traders. 4. Changes in the Energy Industry. 5. Seasonal Demands. 6. The Weather. 7. Natural Disasters and Politics.Explanation:
Hopes this helps. Mark as brainlest plz!PPPLLLLSSS HELP ME Identify the following as visible light, radio, ultraviolet, gamma, micro, infrared waves this is for the second part the first part is complete the sentences
Please help! Links or irrelevant answers will be reported.
Your reflection in Curved Mirrors - What happens to the image?
Which has a greater impact on the kinetic energy of an object the object's mass or the object's speed?
Answer:
mass
Explanation:the larger the mass the higher the kinetic energy
PLEASE HELP ASAP! Any absurd answers will be reported. NO LINKS, IDC IF ITS THE ONLY WAY TO GET AN ANSWER.
Answer:
There is a thing called a continental drift. It started about 200 million years ago. At first the continents were all attached, this super continent was called pangaea. Continental drift occurs because of the shift of the tectonic plates within the earth's outer shell. The heat from within the earth triggers movement to occur. This a very slow process though. It took 200 million years for the continents to get where the are now and would probably take another 200 to collide.
Sound waves are moving across the room from the left toward the opening. What happens to the sound waves as they hit the wall with an opening A Some of the sound waves refract off the wall, while other waves will move through the small opening and then spread out. This is called diffraction. B. Some of the sound waves will reflect off the wall, while others will difract trough the opening and spread out. C Most of the sound waves will reflect ofr the wall, while others will diffract through the opening and spread out. D. Most of the sound waves will reflect off the wall, while others will squeeze through the opening and then reflect again.
Answer: C is right
Explanation: Most of the sound waves are reflected back but waves passing opening will speread to all directions outside because of diffraction