When plastic deformation of a material occurs, the material _____. regains its original shape when the stress is removed is perm
anently deformed becomes magnetic at low temperatures becomes highly resistant to stress
2 answers:
Answer: Is permanently deformed.
Explanation (see the diagram shown below).
For most structural materials:
(a) The deformation in the elastic zone is recoverable, and the material returns
to its original shape when the load (or stress) is removed.
(b) A permanent set (non-recoverable deformation) occurs when the material
is sressed beyond the elastic zone, that is, in the plastic zone.
Explanation (see the diagram shown below).
For most structural materials:
(a) The deformation in the elastic zone is recoverable, and the material returns
to its original shape when the load (or stress) is removed.
(b) A permanent set (non-recoverable deformation) occurs when the material
is sressed beyond the elastic zone, that is, in the plastic zone.
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1) Available force of friction: 6174 N
2) No
Explanation:
1)
The magnitude of the frictional force between the car's tires and the pavement of the road is given by
where
is the coefficient of friction
m is the mass of the car
g is the acceleration of gravity
For the car in this problem, we have:
(coefficient of friction)
m = 1260 kg (mass of the car)
Therefore, the force of friction is
2)
In order to mantain the car in circular motion, the force of friction must be at least equal to the centripetal force.
The centripetal force is given by
where
m is the mass of the car
v is the tangential speed
r is the radius of the curve
In this problem, we have
m = 1260 kg
is the tangential speed
r = 41.6 m is the radius of the curve
Therefore, the centripetal force is
Therefore, the force of friction is not enough to keep the car in the curve, since
Complete Question
The complete question is shown on the first uploaded image
Answer:
the compass direction of the resultant displacement is south of west
Explanation:
Generally using cosine we can obtain the resultant R as follows
=>
=>
We can obtain the direction of the resultant by first using sine rule to obtain angle C as follows
=>
=>
=>
Then the direction is obtained as
=>
=>
Hence the compass direction of the resultant displacement is south of west
