two groups of students carry out experiments to investigate the relationships between force and extenstion

Which statement best describes who the period and frequency of electromagnetic was change between gamma rays and microwaves? a) the period and frequency stay the same. b) the period increases and the frequency decreases. c) the period decreases and the frequency increases. d) the period increases and the frequency increases.

In a system, when potential energy decreases, then entropy also decreases. true false

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest