Out of all given options, poor school performance is a characteristic of sexually active teens.
Answer: Option B
<u>Explanation:</u>
Socio-demographic characteristics include age, gender and the highest level of education of the respondent. Most respondents had mothers with completed high school levels or diploma. Just over a quarter of respondents did not know their mother's highest education. A low level of education and some family situations made the teen to be sexually active.
Teen sexual activity is "a fact in most African countries, as in most Western societies." There is a relationship between the sexual activity of young girls and their school resignation. Therefore, additional consequences of early sexual intercourse are women (and sometimes men) who drop out of school when they become pregnant.
Answer:
Explanation:
Electric field due to a point charge Q at a point at distance d is given by the relation
E = 
Since Q1 and Q2 are of the same magnitude and distance , so they will create eletric field of same magnitude. Similarly field due to rest of the charges will also be same.
The charges are situated on the corners of a square in such a way that
equal charges of Q1 and Q3 are situated on the diametrically opposite corners of the square. Fields due to these two charges will be equal and opposite in direction. Therefore net field due to these two charges will be zero.
On the same ground, we can say that field due to Q2 and Q4 at the centre will be equal and opposite and therefore they will cancel out each other. Net field at the centre will be zero
Overall, net field due to all the four charges will be zero
C) <span>No, sound vibrations can pass from air to water. </span>
Answer:
3.97 m/s
Explanation:
given,
mass of the object,m= 2 Kg
angle of inclination,θ = 20°
coefficient of friction,μ= 0.2
distance,L = 4 m
using work energy theorem
..........(1)
now,
v is the speed of the box.
W is the work done on the box by a net external force.
Work done on the force



......(2)
now, equating both equation 1 and 2



v = 3.97 m/s
hence, the final speed of the box is equal to v = 3.97 m/s