Our milky way galaxy is 100,000 ly in diameter. a spaceship crossing the galaxy measures the galaxy's diameter to be a mere 1 ly. what is the speed of the spaceship relative to the galaxy? and how long is the crossing time as measured in the galaxy's reference frame?

While listening to operatic solos, musicians process the lyrics and the tunes in separate brain areas. this most clearly illustrates the functioning of different

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.