Physics, 22.07.2021 06:10 skyleezarain487
Phân biệt hiện tượng nhiễu xạ và giao thoa ánh sáng. Khi chiếu ánh sáng đơn sắc và ánh sáng trắng vào 1 khe hẹp, ảnh nhiễu xạ thu được có gì khác và giống nhau? Hiện tượng nhiễu xạ và giao thoa ánh sáng được ứng dụng trong cuộc sống như thế nào?
Answers: 2
Physics, 21.06.2019 22:00
There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?
Answers: 1
Physics, 21.06.2019 23:00
In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?
Answers: 2
Physics, 22.06.2019 15:00
10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!
Answers: 2
Phân biệt hiện tượng nhiễu xạ và giao thoa ánh sáng. Khi chiếu ánh sáng đơn sắc và ánh sáng trắng và...
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