What is the period of a microwave with a frequency of 300Hz? and A wave traveling at 5.0 x 10³ meters per second has wavelength of 2.5 x 10⁵ meters. What is the frequency of the wave?

1 x 10-3 - 1 x 10-13 x 109 - 3 x 1011

Explanation:

1. desertification

2. captive breeding

3. black rhinoceros

4. renewable resources

explanation:

mark brainliest!

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.