Which statement best compares light passing through the two blocks?

light is not separated by wavelength as it exits object x.
light moves faster as it moves within object x.
light is only refracted once as it passes in and out of object y.
light is refracted less when it passes through object y.

Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)

Select the correct answer. what does the process of natural selection involve?

Avector a⃗ has a length of 8.6 m and points in the negative x direction. find the x component of the vector −3.7a⃗ .