Answer:
W1 = W2 = 50k Joules (assuming W1 and W2 have the same force constant, k)
W1 - W2 = 0
Step-by-step explanation:
Work done in stretching a spring is given by 1/2ke^2
Where, k is force constant and e is extension
e1 = 30cm - 20cm = 10cm
W1 = 1/2k(e1)^2 = 1/2×k×10^2 = 50k Joules
e2 = 40cm - 30cm = 10cm
W2 = 1/2k(e2)^2 = 1/2×k×10^2 = 50k Joules
W1 = W2 = 50k Joules provided W1 and W2 have equal force constant
Therefore, W1 - W2 = 0
17/24.
Explanation:
24/24 is your original amount.
24 - 7 = 17.
So now you have 17/24! :D
72 ÷ o should be the algebraic expression.
Multiply -8 on both sides
n + 2 = 32 Subtract 2 on both sides
n + 2 - 2 = 32 - 2
n = 30
