The world record for the hundred meter dash is 9.77 s. what is the corresponding average speed in units of m/s, km/h, ft/s, and mi/h?

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Matter that emits no light at any wavelength is called

What describes the formation of horizon b? a. forms at the surface b. features parent material c. undergoes the most change d. forms due to decomposed material i think the answer is c. undergoes the most change