I know that ultrasounds are used to determine the sex of the fetus and its general health. I’m not sure about infrasounds.
Answer:
1.26 secs.
Explanation:
The following data were obtained from the question:
Force (F) = 20 N
Extention (e) = 0.2 m
Mass (m) = 4 Kg
Period (T) =.?
Next, we shall determine the spring constant, K for spring.
The spring constant, K can be obtained as follow:
Force (F) = 20 N
Extention (e) = 0.2 m
Spring constant (K) =..?
F = Ke
20 = K x 0.2
Divide both side by 0.2
K = 20/0.2
K = 100 N/m
Finally, we shall determine the period of oscillation of the 4 kg object suspended on the spring. This can be achieved as follow:
Mass (m) = 4 Kg
Spring constant (K) = 100 N/m
Period (T) =..?
T = 2π√(m/K)
T = 2π√(4/100)
T = 2π x √(0.04)
T = 2π x 0.2
T = 1.26 secs.
Therefore, the period of oscillation of the 4 kg object suspended on the spring is 1.26 secs.
Answer:
The answer is C
Explanation:
When the project finishes under a certain agreement. the project team must capture and share lessons that learn to not repeat same mistakes that made while project ongoing. Therefore, when the similar work need to be redone new project team saves time and labor force with those feedback.
The project team must secure customer feedback and approval to get their claims and progress payments.
The project team must plan a smooth transition of deliverable into ongoing operations in order to get feedback or approval from them in a certain of time. With those feedback of approvals the project team can plan their rework or payment progress.
Alternative dispute resolution is not a must work. It depends on the agreement.