Wave speed = (wavelength) x (frequency)
= (4 m) x (2 /sec)
= 8 m/sec
the answer is B! it would continue to expand.....just took the test XD
Kinetic Energy is calculated by KE= 1/2mv2
Answer:
we know that current = charge/time
Explanation:
therefore,
A = 8000/120
A => 66.666.... amperes
The distance covered by Arthur is
3t
The distance covered by Betty from where Arthur started is
100 - 2t
They meet each other when this distance is equal
3t = 100 - 2t
t = 20 s
Since the dog has a constant speed of 5m/s, the distance that Spot has run is
5 m/s (20s) = 100 m