A car travels d=10km[E] then d=20km[N] What is the displacement travelled a) 30km
b) 30km[NE]
c) 22km[NE]
d) 22km[E630N]
A boat travels west at 20km/h. The journey lasts 3hours. How far has the boat travelled? *
a) 60km
b) 60km{W}
c) 17km{W}
d) 6.6km{W}​

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

Imagine that the rightward current flows in the rod for a short time. as a result, what will the net charge on the right and left ends of the rod become? left end negative and right end positive left end negative and right end negative left end negative and right end nearly neutral left end nearly neutral and right end positive both ends nearly neutral