Let
be the speed of the helicopter in still air. Let
be the speed of the wind. Then, from the given information,

Adding the above 2 equations,

The speed of the helicopter in still air 
Answer:
The answer is B. Without a college education, workers will actually lose money in the long run.
Explanation:
Just got it right on the assignment
the correct answer is if you tripled the sphere volume, do the mat idiot
Answer:
a) x=63.0
or 6.3cm
b) x=116.0
or 11.6cm
Explanation:
a).
The elastic potential energy is modeling by equation :

b).
The work energy theorem explain which work is done in this case. the motion began from the rest so K1=K2 equal zero, Ug1 is no yet done and U2is also zero because is the potential energy

Solving for x


The negative is discard so
x=0.116m
Answer:
16 is D, 17 is A, 18 is C, 19 is B ( would approve of brainliest)
Explanation:
16 is D, 17 is A, 18 is C, 19 is B