They are magnetic
Your welcome;)
The combination of all of the forces acting on object is net force.
Answer:
8.36e2
Explanation:
Use a scientific calculator
Answer:
The work done shall be 14715 Joules
Explanation:
The work done by a force 'F' in a displacement 'dy' is given by

At any position 'y' the weight shall be sum of weft of water and weight of string

Thus applying values we get

Answer:
I think its A
Explanation:
if its every 3 seconds wouldnt it be 3.0 Hz