Receiver
questions:
1) going back to the idea of a plane before take off. why was the sound of the engine louder when it goes from low to high power
goes from low to high power?
use the terms volume, energy, and amplitude to explain your answer
2) graph what the sound wave would look like for a 2 year old girl laughing and a 40 year old man
laughing

There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Sound is a disturbance that travels through a medium as a