No because they could be different materials for example one could be concrete and one could be aluminium
(a) We will use the equation v = u + at
Initial velocity u = 5.00 m/s
Acceleration a = 0.0600 m/s²
time = 8 min = 8 x 60 = 480 s
Final velocity
= u + at
= 5.00 + 0.0600(480)
= 33.8 m/s
The final velocity is 33.8 m/s
Answer:

Explanation:
As we know that the force per unit length of two parallel current carrying wires is given as

here we know that


d = 2.2 cm
now from above equation we have



The sound wave never actually loses energy, the bulk of energy it had at the beginning of the sound, is spread out into a sphere, making it decrease in amplitude and frequency.