Which of the following describes the bending of light due to a change in its speed?

A. refraction

B. transmission

C. absorption

D. reflection

If a mack truck and a minicooper have a head-on collision, which vehicle will experience the greater force of impact? the greater impulse? the greater change in momentum? the greater deceleration?

What is the density of a metal cube (exactly 2 cm on each side that weighs 21.6g?

When a wave propagates through a medium the molecules of the medium?

Determine the x and y components of reaction at pin b on bc using scalar notation.

Consider the following scenario: You live near the shoreline and hear a report that an earthquake hit the ocean floor near your location. Your town may experience A. a tsunami. B. snow. C. rain. D. hail.

The frequency of the George Washington Bridge is 2.05 Hz. What is its period?

Is speed and average speed the same thing?

Explain constellations and galaxies in detail.

A vw bug is driving north on a striaght two lane road at a constant 38mph and a chevy impala is driving south at 29mph on the same road heading toward the vw bug (but in a different lane).

Ptolemy and Copernicus were astronomers who had proposed theories about the solar system. Ptolemy believed that the planets and the sun orbited Earth. Copernicus believed that Earth and other planets circled a stationary sun.