Answer:
B
Explanation:
Because HIV by kissing will not exposed to other... It can only transmitted through blood
I think it's D. Because the students impulse is to do it because its cool, because all their friends do it. Hope my answer helps you! :)
The baseball of mass 140g travels at a speed of 30 m/s.
Its momentum is
P₁ = (140 x 10⁻³ kg)*(30 m/s) = 4.2 (kg-m)/s
Part a.
The momentum is dissipated in 1.5 s.
The average force, F, that dissipates the momentum is
(F N)*(1.5 x 10⁻³ s) = 4.2 (kg-m)/s
F = 2800 N = 2.8 kN
Answer: 2.8 kN
Part b.
The average force that the baseball exerts on the head is 2.8 kN, as obtained in part a.
This is true if the time to dissipate the momentum is 1.5 ms.
Answer: 2.8 kN
Part c.
Answer:
(a) The forehead will not fracture because 2.8 kN < 6.0 kN.
(b) Your cheek will fracture because 2.8 kN > 1.3 kN
Which of these statements describes clinical depression?
3- alternate feelings of extreme happiness and extreme sadness
To treat people with mental disorders so that they can reenter society, helps people better understand how/why someone acted the way they did, and use research to develop theories on how humans learn in order to improve school systems and learning style
