How is the Un-DSM different from the DSM-IV-TR?
1 answer:
Answer:
In the DSM-IV, patients only needed one symptom present to be diagnosed with substance abuse, while the DSM-5 requires two or more symptoms in order to be diagnosed with substance use disorder. The DSM-5 eliminated the physiological subtype and the diagnosis of polysubstance dependence.
Explanation:
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Answer:
The velocity of the police car relative to earth is
Given:
time for flash generation of the inter galactic police car, t = 1.2 s
time between flashes as measured from earth, t' = 2.2 s
Solution:
Utilising Einstein's equation for time dilation to calculate the velocity of the police car, the equation is given by:
(1)
where, c = speed of light in vacuum =
re arranging eqn (1) for velocity, v:
(2)
Now, from eqn (2)