Which of the following substances cannot be broken down into simpler substances? Table Salt (NaCl)
Water (Hsub2O)

Sand (SiOsub2)
Potassium (K)

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

First to answer will be the brainliest i need the answer asap