Answer:
3.0 x10^-3 J
Explanation:
The potential energy of a spring is given by PE = (0.5)k*x^2
Where
K: Spring Constant = 60 N/m
x: displacement of the spring from its equilibrium position = 1cm = 0.01m
Then PE = 0.5(60)(.01)^2 = 0.003J = 3.0 x10^-3 J
The duck at 12m/s has a greater speed than the heron which travels at 10m/s
Answer:
The value is 
Explanation:
From the question we are told
The pipe diameter at location 1 is 
The velocity at location 1 is 
The diameter at location 2 is 
Generally the area at location 1 is

=> 
=> 
=> 
Generally the area at location 1 is

=> 
=> 
Generally from continuity equation we have that

=> 
=> 
=> 
Although the semi truck certainly has a larger mass, it is not in motion and therefore does not have any momentum. The bicycle however has both mass and velocity and therefore has the larger momentum of the pair.
It will be stand 46.67 all i did was divide both numbers but im not sure if im right but i hope i am hope i helped:)