A body covers on one revolution around a circular part of circumference 176m in 4 minutes. Find the displacement of the body after 6 minutes.
( I need the working as well )

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

What’s #16 asking me and how do i solve it?

What can you increase the strength of an electromagnet by