Answer:
<u> Learning skills</u>
<u>Explanation:</u>
Remember, <em>life skills</em> refer to essential mental and physical abilities needed by a person to successfully face challenges of everyday life.
Therefore, an individual who inquires why and how about the various things in life is developing his learning skill, thereby also increasing his critical thinking abilities.
Given Information:
Force = f = 1 pound
Stretched length = x = 0.1 ft
Required Information:
Work done = W = ?
Answer:
Work done = 6.05 ft.lb
Explanation:
From the Hook's law we know that
f(x) = kx
Where f is the applied force, k is spring constant and x is length of spring being stretched.
k = F/x
k = 1/0.1
k = 10 lb/ft
f(x) = 10x
The work done is given by
W = ∫ f(x) dx
Where f(x) = 10x and limits of integration are (1.1, 0)
W = ∫ 10x dx
W = 10*x²/2
W = 5x²
Evaluating the limits,
W = 5(1.1)² - 5(0)²
W = 6.05 - 0
W = 6.05 ft.lb
Therefore, 6.05 ft.lb work has been done in stretching the spring from its natural length to 1.1 feet beyond it's natural length.
Answer:
Plane's initial speed: 14
Plane's acceleration: -1
Explanation:
average velocity =
V0=?
Vf= 0 m/s (rest)
t=7 s
Isolating V0
V0=2a-Vf = 2*(7) - 0= 14
Otherwise;
Its a type of phase change and it is melting.