Step-by-step explanation:
=3.302
=3
Answer:
W₂ is three times W₁ (W₂ = 3W₁)
Step-by-step explanation:
Applying,
W = ke²/2............. Equation 1
Where W = workdone in stretching the spring, k = spring constant, e = extension.
For W₁,
W₁ = ke₁²/2
Given: e₁ = 30-20 = 10 cm = 0.1 m
Substitute these value into equation 1
W₁ = k(0.1²)/2
W₁ = 0.005k Joules
For W₂,
W₂ = (ke/2)-W₁
Given: e = (40-20) = 20 cm = 0.1 m
Substitute these value into equation 1
W₂ = (k×0.2²/2)-0.005
W₂ = 0.015k Joules.
W₂/W₁ = 0.015k/0.005k
W₂/W₁ = 3
Therefore,
W₂ = 3W₁
Answer:
Cubic polynomial.
Step-by-step explanation:
Polynomials with their highest degree 3, are called cubic polynomials.
Answer: choice D) 5/2
The csc or cosecant value is the reciprocal of the sine value. All you do is flip the fraction given. In terms of notation, we can say csc(theta) = 1/sin(theta). If sin(theta) = a/b, then csc(theta) = b/a.
