daniel9299
17.09.2021 •
Physics
Quả cầu A có điện tích -3,2.10-7C , quả cầu B có điện tích 2,4.10-7C đặt cách nhau 12cm trong chân không . a Vẽ và tính lực tương tác giữa hai quả cầu , lực hút hay đây ? b . Muốn lực tương tác giữa hai quả cầu là 11,52.10-3N thì khoảng cách giữa hai quả cầu là bao nhiêu ? Lấp đầy không gian chứa 2 quả cầu bằng dầu có hằng số điện môi là 2 , tính lực tương tác giữa 2 quả cấu ?
Solved
Show answers
More tips
- D Dating, Love, Relationships Is it a Compliment or Flattery: What s the Difference?...
- H Health and Medicine What Are the Best Vitamins? A Scientific View on Vitamin Supplements...
- F Food and Cooking From Latte to Espresso: Which Coffee Drink is the Most Popular on Earth?...
- C Computers and Internet How to Set Up Internet on iPhone? Detailed Guide with Step-by-Step Instructions...
- F Family and Home How to Teach Your Child to Speak: Tips and Recommendations...
- P Philosophy Agnosticism: Opinion or Belief?...
- S Style and Beauty How to choose the best mascara for your eyelashes...
- F Food and Cooking Discover Delicious Recipes You Can Make with Ground Meat...
- C Computers and Internet Google Search Tips and Tricks: Everything You Need to Know...
- S Science and Technology Why is there no gravity on other planets?...
Answers on questions: Physics
- P Physics The Aluminum Electrical Conductor Handbook lists a dc resistance of 0.01558 ohm per 1000 ft at 208C and a 60-Hz resistance of 0.0956 ohm per mile at 508C for the...
- P Physics Part D How well do you think this lab modeled the movement of Earth s tectonic plates and its convection currents? Explain your reasoning. What geologic factors were...
- P Physics Match each image of a moving car with the description of its kinetic and potential energy....
- B Biology True or false: a symbol is something, usually a physical object,animal or a place, which represents something else such as an idea...
- A Advanced Placement (AP) Which statement about fire hazards during the holidays is not true? electrical problems and heat sources contribute to the fire dangers. christmas trees cause more...
- C Chemistry What is the average atomic mass of chlorine if the mass of one isotope is 34.97 amu and has a p? er cent abundance of 75.77%. the other isotope has a mass of 36.97...
- S Social Studies Aparent s most important responsibility is to care for a child s economic needs. all other concerns are secondary. true false...
- M Mathematics Kiran and his cousin work during the summer for a landscaping company. kiran s cousin has been working for the company longer, so his pay is 30% more than koran s....
- E English Read this excerpt from when birds get flu and cows go mad! how safe are we? . 24/7: how did you become interested in disease control? dr. scott dowell: my father...
- M Mathematics Given the line y=2x-1 find the equation for the line that is parallel that goes through (2,5)...
Ответ:
Explanation:
Particles A and C are shown as if they are on the same vertical line, which means with the same kinetic energy. Both particle A and C are to the lett of particle B, which means that the formers have a lower kinetic energy than the latter.
Since the likelyhood of a particle to participate in the reaction increases with the kinetic energy, particle B is more likely to participate in the reaction than particles A and C. Hence, the first choice is incorrect.
The graph, although not perfectly symmetrical, does show a bell shape, hence there are many particles will low kinetic energy and many particles with high kinetic energy. You cannot assert that most of the particles of the two gases have high high speeds. Hence, second statement is incorrect, too.
At high values of kinetic energy (toward the right of the curve), the line labeled T₁ is higher than the line labeled T₂, meaning that at T₁ more particles have an elevated kinetic energy than the number of particles that have an elevated kinetic energy at T₂.
On the other hand, at low values of kinetic energy (toward the left of the curve) the line T₂ is higher than the line T₁, meaning that at T₂ more particles have a low kinetic energy than the number of particles that have low kinetic energy at T₁.
Hence, the last two paragraphs are telling that the average kinetic energy of gas particles at T₂ is is lower than the average kinetic energy of gas particles at T₁.
Since the average speed is proportional the the square root of the temperature, the same trend for the average kinetic energy is true for the average speed, and you conclude that the last statement is true: "The average speed of gas particles at T₂ is lower than the average speed of gas particles at T₁".
Since more particles at T₁ have high kinetic energy than the number of particles at T₂ that have a high kinetic energy, more particles of gas at T₁ are likely to participate in the reaction than the gas at T₂, and the third statement is incorrect.