Physics, 04.02.2021 06:40 cookiem0nster
After Jimmy placed raw potato slices and hydrogen peroxide (H202) in
a plastic bag, he concluded that an exothermic reaction had taken
place. Which of the following supports Jimmy's conclusion?
a. the potatoes changed color
b. the hydrogen peroxide (H2O2) bubbles
c. the plastic bag got warmer
d. the plastic bag got cooler
NEED QUICK!!
Answers: 3
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Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
After Jimmy placed raw potato slices and hydrogen peroxide (H202) in
a plastic bag, he concluded th...
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