If the coefficient alpha for a stress scale was computed to be 0.80, the scale would be strongly reliable. A coefficient alpha that is at least 0.70 and above is considered to have a strong internal consistency, which means the items in the scale are closely related as a group.
The energy of position, stored energy. e.g. exhibited by the position of electrons in electron shells relative to the atom's nucleus.
To solve this problem it is necessary to apply the kinematic equations of motion for speed and distance, as well as the concepts related to kinetic energy.
The change in the height of a body subject to gravity is given by

Where
h = Height
g =Gravity
t = time
Replacing with our values we have that the time is



From speed as a function of change between acceleration and time we have then that after 2.6 seconds the speed would be



The kinetic energy would be given by



Therefore the kinetic energy after 2.6s is 1070.16J
By Newton's second law, the apparent weight of rider coming at rest is <u>3548 N</u>.
According to formula, v = u + at
a = 39.2 m/
Force, F = ma
F = m(a+g)
F = apparent weight
m = mass, given = 65 kg
a = acceleration, given = 39.2 m/
g = 9.8 m/
Put these values in formula, F = m(a+g)
F = 65(39.2+9.8)
F = 3548 N
Therefore, the apparent weight of rider coming at rest is <u>3548 N</u>.
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