15 POINTS
How does the speed of waves vary in different media?
Radio waves are used to...
Answers: 2
Another question on Physics
Physics, 22.06.2019 14:00
What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration
Answers: 1
Physics, 22.06.2019 17:10
It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
Physics, 22.06.2019 19:10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
You know the right answer?
Questions
Mathematics, 22.04.2020 01:45
Computers and Technology, 22.04.2020 01:45
History, 22.04.2020 01:45
Mathematics, 22.04.2020 01:45
History, 22.04.2020 01:45
Mathematics, 22.04.2020 01:45
Mathematics, 22.04.2020 01:45
