Answer:
State A = piece of metal; State B = air
Explanation:
For the three main states of matter here's how it breaks down.
Solid - Cannot be compressed and retains its shape
Liquid - Cannot be compressed and does not retain its shape
Gas - Compressible and does not retain its shape.
Knowing this State A has to be solid. Only one of the options has A as a solid, so that's the answer. Worth knowing state B is a gas though, only one compressible, just like solid is the only one that retains its shape.
Given:
initial angular speed, = 21.5 rad/s
final angular speed, = 28.0 rad/s
time, t = 3.50 s
Solution:
Angular acceleration can be defined as the time rate of change of angular velocity and is given by:
Now, putting the given values in the above formula:
Therefore, angular acceleration is:
Velocity. Net force causes acceleration and acceleration causes a change in direction and/or magnitude of velocity
Answer:
d= 64.7 km
displacement vector
Explanation:
total distance = 40 + 30 = 70 km
during 1st flight
during 2nd flight
the two component of r are:
Geographical Direction
Displacement d
d= 64.7 km
displacement vector