Answer:
Step-by-step explanation:
From the question we are told that:
Number of boys
Number of girls
Total Number of students
Generally the equation for Probability of Choosing a Girl is mathematically given by
Your history teachers is going to give you a 92 point assessment. There are 2 point questions and 3 point questions. If there is
2 answers:
You might be interested in
Answer:
Work done in stretching the spring = 7.56 lb-ft.
Step-by-step explanation:
Normal length of the spring = 8 in or ft
= ft
If the spring has been stretched to 11 inch then the stretched length of the spring is = 11 in
= ft
Force applied to stretch the spring = 12 lb
By Hook's law,
F = kx [where k is the spring constant and x = length by which the spring is stretched]
12 = k()
k = 18
Work done (W) to stretch the spring by ft will be
W =
=
=
= 9()²
= 7.56 lb-ft