Why does sound not transmit in vacuum
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Answers: 1
Physics, 22.06.2019 15:30
An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?
Answers: 1
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
Physics, 22.06.2019 23:00
Why does gravity have a lesser than grater effect on higher altitudes?
Answers: 2
Physics, 23.06.2019 00:00
Boiling water is an example of physical change. true or false
Answers: 2
Computers and Technology, 03.02.2020 23:52
History, 03.02.2020 23:52
History, 03.02.2020 23:52