Answer:
6.7 kg
Explanation:
V = 5000 L = 5000 x 10^-3 m^3 = 5 m^3
T = 0.2 degree C = 273.2 K
P = 1.04 atm = 1.04 x 1.01 x 10^5 Pa = 1.0504 x 10^5 Pa
R = 8.314 in SI system of units
Use the ideal gas equation. Let n be the moles of air occupied in the lungs of whale.
P V = n R T
n = P V / R T
n = (1.0504 x 10^5 x 5) / (8.314 x 273.2) = 231.22
the mass of one mole of air is 28.98 g
So, the mass of 231.22 moles of air = 231.22 x 28.98 = 6700 .88 g = 6.7 kg
S ?
U 0m/s
V ?
A 0.1m/s^2
T 2min (120 sec)
S=ut+0.5at^2
S=0(120 sec)+0.5(0.1m/s^2)(120 sec)^2
S=720m
Distance double 720m*2=1440m
V^2=u^2+2as
V^2=(0)^2+2(0.1 m/s^2)(1440m)
V^2=288
V= square root of 288=12 root 2=16.97 to 2 decimal places
Specific gravity of steel = density of steel / density of water
brainliest pls
Answer:
(a)158.9 N up the ski slope
(b) 0.19
Explanation:
PLEASE MARK ME AS BRAINLIEST
F^k=MkN
158.9=817.7 M*s
Mk=0.19
There are several information's already given in the question. The answer can be easily deduced using those information's.
Time = 3.0 * 10-3 seconds
Impulse = 0.30 newton
Then
Force = Impulse/Time
= 0.30/3.0 * 10-3
= 1 * 10^3 newtons.
I hope the above procedure is clear for you to understand and it has actually come to your great help.