Answer:
Mass is zero if the whole rope is horizontal. Imaginary rope.
Explanation:
With any mass at all, only a small section of the rope will be truly horizontal. The rope curve will be a a catenary.
Answer:
To accurately respond to stimuli, the brain relies on information communicated by sensory neurons. Sensory neurons detect inputs from the environment, convert them into signals (electrical impulses), and pass the information on to the brain and spinal cord, where a response can be generated.
Explanation:
Answer:
V(3) =14i^ -34j^ +8.57 k^
S(3) =(25,-45,3.97)
Explanation:
We know that
V =a dt
from t=0 to 3s
V = 4i - 6tJ + sin(.2t)k m/s² dt
V =4t i^ - 3t^2j^ - cos(2t)/2 k^ +C
So we have
V(0) =-1/2 k^ +C =2i -7j +8.4 k
C=2i -7j +8.9k^
V =4t i^ - 3t^2j^ - cos(2t)/2 k^ + 2i -7j +8.9k^
Then putting 3s
V(3) =14i^ -34j^ +8.57 k^
Also
S(t) =V(t) dt
S(t) = 4t i^ - 3t^2j^ - cos(2t)/2 k^ + 2i -7j +8.9k^] dt
S(t)= (2t^2 +2t)i^ - (t^3 +7t) j^ -[sin(2t)/4 - 8.9t] k^ +C =i+3j-5k
So at t= 0 we have
S(0) = C= i+3j-5k
So S(t) =(2t^2 +2t)i^ - (t^3 +7t) j^ -[sin(2t)/4 - 8.9t] k^ +i+3j-5k
When t= 3
S(3) =25i -45j + 3.97k
S(3) =(25,-45,3.97)
Answer:
Explanation:
Proton is the correct answer