Every atom with 15 protons in its nucleus
is an atom of Phosphorus.
Answer:
Cows,Pigs,Chicken. They are always in farm
Answer:
magnetic force
Explanation:
when some one gets charged up by maybe static eletricity the person will sustain the energy and the energy will make a force field around the person which can and will attract paper and he will be attractive
Answer:
speed in still air is 42 mph
Explanation:
given data
tail wind speed = 14 mph
time t1 = 5 min = 5/60 hr = 1/12 hr
return time t2 = 10 min = 10 /60 hr = 1/6 hr
to find out
how fast they fly
solution
we consider here speed in still air is x
then
speed in wind will be = x + 14
and against wind speed = x - 14
so
distance = speed × time .................1
so in wind distance = ( x + 14 ) × 1/12 ...................2
and against wind distance = ( x - 14 ) × 1/6 ..................3
so from equation 2 and 3
( x + 14 ) × 1/12 = ( x - 14 ) × 1/6
x = 42
so speed in still air is 42 mph
