Answer:
14.484
Step-by-step explanation:
13.60+6.5%=14.484
++++++++++++++++++++
21.25-5=16.25
16.25÷6.50=2.5
She will have to babysit 2.5 hours
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
Answer: 11 degrees Celsius
Step-by-step explanation:
Answer:
The tax percentage is not needed because the tip was based off the after tax price.
The the total bill was $11
$2.20 divided by 20% = $11
Or
$11 x 20% = $2.20
Step-by-step explanation: