Since each student emits 100 W, so 170 students will emit:
total heat = 100 W * 170 = 17,000 W
Convert minutes to seconds:
time = 50 min * (60 s / min) = 3000 s
The energy is therefore:
E = 17,000 W * 3000 s
<span>E = 51 x 10^6 J = 51 MJ</span>
Using equation you can solve
Answer:
Explanation:
First, we will use conservation of the linear momentum:
so:
where is the mass of the dart, is the speed of the dart just before it strickes the apple, the mass of the apple and the velocity of the apple and the dart after the collition.
Then, solving for V_s:
now, using the conservation of energy:
so:
where g is the gravity and h how high does the apple move upward.
Now, replacing and solving for h, we get:
S- sexually T- transmitted D- disease
These are usually transmitted by some sort of sexual inter-coarse .
some examples of STD's are HIV,chlamydia,genital herpes,&gonorrhea . These are not the only ones there are many other types of STDs