Mathematics, 21.06.2020 05:57 Alysssssssssssa
A motorboat maintained a constant speed of 22 miles per hour relative to the water in going 48 miles upstream and then returning. The total time for the trip was 5.5 hours. Use this information to find the speed of the current.
Answers: 2
Mathematics, 21.06.2019 13:00
The measurement of one angle of a right triangle is 34Ā°. what is the measurement of the third angle?
Answers: 1
Mathematics, 21.06.2019 15:20
Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?
Answers: 1
A motorboat maintained a constant speed of 22 miles per hour relative to the water in going 48 miles...
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