Answer:
F=ma
So we have to find acceleration
V^2-U^2=2as
V=0 ,U=10m/s ,s= 50m
(0)^2-(10)^2=2*50*a
0-100=100*a
-100=100*a
-100/100=a
-1=a
F=ma
F=1000*-1
F= -1000N
Hope this is the right answer
Answer: B, composite
Explanation: Sunlight is composite because it is the most likely choice present and I have only ever heard it referred to as composite! Hope this helps, God bless!
Answer:
Option D. 0.568 s
Given:
Length of the rope, l = 10.4 m
mass of the rope, M = 2.31 kg
Tension, T = 74.4 N
Solution:
The velocity of the wave, is given as:
Putting the values in the above formula:
Time taken, t can be calculated as:
Since distance between two end is the length of the rope
Therefore, using the formula for time, t:
t = 0.568 s
therefore, time taken for the disturbance to travel from one end to the other is t = 0.568 s