Answer:
First of all, “moist air” is air with a high water vapor content. Water vapor, the invisible, gaseous form of water, occurs in highly variable amounts in the atmosphere. Water is composed of a hydrogen atom and two oxygen atoms (H2O) and has a molecular weight of 18 grams per mole.
Muscles that are under your conscious control are called voluntary muscles, while muscles that are not under your conscious control are called involuntary muscles
A car uses stored chemical energy in gasoline to move. The engine changes the chemical energy into heat and kinetic energy to power the car. A toaster changes electrical<span> energy into heat and light energy</span>
3 grams because if you divide 240 by 80 you would get 3
Answer:
Explanation:
distance covered by ice cube = 0.5 m
force acting downwards = mgsin49
force of friction acting along surface upwards
= mgcos49 x .16 ( reaction force of inclined surface R = mgcos49.)
net force acting downwards
mgsin49 - mgcos49 x .16
mg (sin49 - cos49 x .16 )
net acceleration downwards
g (sin49 - cos49 x .16 )
= (.7547 - .105 ) x 9.8
= 6.367 m / s²
s = ut + 1/2 at²
0.5 = 0 + 1/2 x 6.367 x t²
t² = .1570
t = .4 s
b )
Let required inclination be θ
in the second case net acceleration
a = g ( sin θ - .385 cosθ )
s = ut + 1/2 at²
0.5 = 0 + 1/2 x g ( sin θ - .385 cosθ ) x .4 x .4
( sin θ - .385 cosθ ) = .6377
sin θ = .385 cosθ + .6377
θ = 58 degree.
