Answer:
4.25 mm
Explanation:
σ = E ∙ ∆L/L₀
where σ is stress,
E is Young's modulus,
and ∆L/L₀ is strain (∆L is the deflection, L₀ is the initial length).
Plugging in values:
1.53×10⁸ Pa = (1.8×10¹⁰ Pa) ∆L / (500 mm)
∆L = 4.25 mm
Answer: a force is simply a push or pull.
The SI unit for force is Newton(N) or kgm/s2
When the net force on an object is not zero the forces are said to be unbalanced since they do not cancel out each other .
When two forces act in opposite directions we substract the forces in order to get the resultant force acting on the object.
Explanation:
Sure: ths is called protyping and lets yu get a sende fo the effeciveness tof the cahnge and the cost of the change.
<span>A - just like the scientific principle syu what to know what other know or have learned. Example would it be silly to build a nuclear power de-salinatiztion plant when a dam in the mountains wuld dothe savme thng and perhaps have the advatage of using local labor and preveinting floods and givng of hydro eletic power. </span>
<span>A a process is a technological soultion it uses tools, machines, chemical to effect an otu come.</span>
Answer:
speed of the mass is 3.546106 m / s
Explanation:
given data
mass = 77.3 g = 77.3 × 
kg
spring constant k = 12.5 N/m
amplitude A = 38.9 cm = 38.9 ×
m
to find out
the speed of the mass
solution
we will apply here conservation energy that is
K.E + P.E = Total energy ..................1
so that Total energy = K.E max = P.E max
we know amplitude so we find out first P.E max that is
PE max = K.E + P.E
(1/2)kA² = (1/2)mv² + (1/2)kx²
kA^² = mv²+ kx²
so here v² will be
v² = k(A² - x²) / m
v = √[(k/m)×(A² - x²)] ............2
here x = (1/2)A so from from 2 equation
v = √[(k/m)×(A² - (A/2)²)]
v = √[(k/m)×(3/4×A²)]
now put all value
v = √[(12.5/ 77.3 × )×(3/4×(38.9 ×)²)]
v = 3.546106 m / s
speed of the mass is 3.546106 m / s
