When temperature decreases the atoms(or molecules) within the substance begin to slow down.
Answer:
Natural frequencies of oscillation and typical earthquake frequencies should be different.
Damping on the structure should be large.
Explanation:
The natural frequency of the structure must be different from the typical earthquake frequency, the more different the better. This is because if both frequencies were the same or similar there is a risk that the building will <u>resonate </u>and collapse.
As for the damping, it must have a high value. This so that the building resists earthquakes better and prevents it from moving dangerously, thus damping on the structure should be large.
Answer:
Net force, F = 205.59 N
Explanation:
Given that,
Mass of a bobsled, m = 89 kg
Initial speed of the bobsled, u = 0
Distance travelled, d = 33.8 m
Final speed of the bobsled, v = 12.5 m/s
To find,
The magnitude of the net force
Solution,
Let a is the acceleration of the bobsled. Using the third equation of kinematics as :
Let F is the magnitude of net force acting on the bobsled. It can be calculated as :
F = 205.59 N
Therefore, the magnitude of the net force acting on the bobsled is 205.59 N.
Answer:
b
Explanation:
if there is a fire there is no time to waist
