Answer:
275 MPa, -175 MPa
-0.63636
450 MPa
Explanation:
= Maximum stress
= Minimum stress
= Mean stress = 50 MPa
= Stress amplitude = 225 MPa
Mean stress is given by

Stress amplitude is given by


Maximum stress level is 275 MPa
Minimum stress level is -175 MPa
Stress ratio is given by

The stress ratio is -0.63636
Stress range is given by

Magnitude of the stress range is 450 MPa
For this case we can write each one of the vectors in the following way:

This means that the x-axis is defined as positive towards the west.
Then, the resulting vector is:

Answer:
Displacement vectors of 10 m west and 14 m west make a resultant vector that is 24 m west
Answer:

Explanation:
In an uniformly accelerated circular motion, the angle traveled by the object is given by:

Here
is the final angular speed,
is the initial angular speed and t is the time of the motion. Replacing the given values:

Answer:
Compare brands first, but purchase the one that has lots of commercial advertisements, Compare ingredients and purchase the brand that is safe to use with soft contact lenses, Compare prices and purchase the most inexpensive brand.
Explanation: