Answer :- 6 m/s
V =λ /T
Since T = 1 /f we can also say that:
v = λ . f
So, using that last formula:
v= 2 m . 3 Hz
= 6 m/s
I would suggest D, Explore either taking a lighter workload or cutting back some work hours.
Washing machine
Remote control
Laptop
Camera
Stove top/ microwave/ oven/ fire
True corret is ; C.
Karina and <u>She</u> are working together to build a model.
Good Luck ...