A. 4
Physics, 09.12.2020 22:10, kaylorb8284
How many atoms of oxygen are in the molecule: H2O2
ANSWER I WILL GIVE YOU BRAINLIES
A. 4
B. 0
C. 2.
D. 1
Answers: 1
Physics, 21.06.2019 18:10, eweqwoewoji
Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.
Answers: 1
Physics, 22.06.2019 02:00, browneyedbaby20
The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e
Answers: 3
Physics, 22.06.2019 07:40, Alex9089435028
Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?
Answers: 3
How many atoms of oxygen are in the molecule: H2O2
ANSWER I WILL GIVE YOU BRAINLIES
A. 4
A. 4
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