Physics, 28.03.2021 21:20, alishabhappy1
You hear the sound from a tuning fork vibrating at 483 Hz. You then hear the sound from a second tuning fork vibrating at 512 Hz. What is different about the sound waves created by these two tuning forks?
The second sound has a higher frequency and a shorter wavelength
The second sound has a higher frequency and a lower speed
The second sound has a higher frequency and a higher speed
The second sound has a higher frequency and a higher wavelength
The second sound has a higher frequency but the same wavelength
Answers: 3
Physics, 22.06.2019 08:30, 2021arabellacorsino
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
Physics, 22.06.2019 17:00, cwibs
Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c. what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?
Answers: 1
Physics, 22.06.2019 19:30, Bg88860709
Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere
Answers: 2
Physics, 23.06.2019 12:00, sanakhalid9728
What belongs in the areas marked x and y? x: the internal energy of a piston system increases as heat is added and rises to a cool area y: as thermal energy is added to a container, some of the energy is lost to the environment x: as thermal energy is added to a container, some of the energy is lost to the environment y: the internal energy of a piston system increases as heat is added and rises to a cool area x: a cold spoon placed in hot liquid gets warmer y: thermal energy is converted to light energy x: thermal energy is converted to light energy y: a cold spoon placed in hot liquid gets warmer
Answers: 3
You hear the sound from a tuning fork vibrating at 483 Hz. You then hear the sound from a second tun...
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