Physics, 29.01.2020 07:53 Alphonse8472
Which of these illustrates that sound waves can travel through a liquid? a. voices can be heard as people speak to one another b. whales and porpoises signal each other by making sounds c. astronauts can’t hear each other in space unless they use a radio d. footsteps can be heard through the ceiling as someone walks on the roof
Answers: 3
Physics, 22.06.2019 08:30
An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?
Answers: 1
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What equation is used to calculate the weight of an object on a plant ?
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Physics, 22.06.2019 21:50
To fully describe the photoelectric effect, scientists must consider which of the following to be quantized? o a. both light and matter o b. matter only o c. light only o d. neither light nor matter
Answers: 2
Physics, 22.06.2019 23:00
The average time that it takes for the car to travel the first 0.25m is s. the average time to travel just between 0.25 m and 0.50 m is s. given the time taken to travel the second 0.25 m section, the velocity would be m/s.
Answers: 1
Which of these illustrates that sound waves can travel through a liquid? a. voices can be heard as p...
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