Here are the correct answers of the given questions above.
The predictors of teenage suicide include AGE, GENDER, ALCOHOL, DRUG USE, TRIGERRING EVENTS, POPULATION DENSITY, FAMILY RELATIONS and CLUSTER EFFECTS. How social scientists explain the correlation between teen suicide and alcohol and drug use are the following:
<span>A. Teens who are heavy users of alcohol and drugs typically have low levels of self-control and are easily frustrated.
B. Teens under the influence of drugs and alcohol are more likely to act impulsively.
C. Teens often use drugs and alcohol as the method by which to commit suicide.</span>
Answer:
The combined momentum will be 2 units.
Explanation:
Here a piece of putty moving with 2 units of momentum strikes and sticks to a heavy bowling ball that is initially at rest. After the putty sticks to the ball, both are set in motion with a combined momentum. It is a case of inelastic collision in which the momentum of the system remains conserved.
The law of conservation of momentum will be followed here. So, the combined momentum after collision will be same as the initial momentum. Hence, the correct option is (b) "2 units".
Answer:
W = 290.7 dynes*cm
Explanation:
d = 1/5 cm = 0.2 cm
The force is in function of the depth x:
F(x) = 1000 * (1 + 2*x)^2
We can expand that as:
F(x) = 1000 * (1 + 4*x + 4x^2)
F(x) = 1000 + 4000*x + 4000*x^2
Work is defined as
W = F * d
Since we have non constant force we integrate
W = [1000*x + 2000*x^2 + 1333*X^3] evaluated between 0 and 0.2
W = 1000*0.2 + 2000*0.2^2 + 1333*0.2^3 - 1000*0 - 2000*0^2 - 1333*0^3
W = 200 + 80 + 10.7 = 290.7 dynes*cm
the answer is 1.5 hope this helps
The answer for your diving board would be 7.2