Answer:
190 كم / ساعة ، 64 درجة جنوب شرق
Explanation:
Answer:
F = 1094.4 N
Explanation:
From impulse - momentum theorem, we now that ;
Impulse = momentum
Where;
Formula for impulse = force (F) × time(t)
Momentum = mass(m) × velocity(v)
Now, we are given;
Mass of swimmer; m = 72 kg
Speed; v = 3.8 m/s
Time; t = 0.25 s
Thus;
F × t = mv
F = mv/t
F = (72 × 3.8)/0.25
F = 1094.4 N
This value of force is the magnitude of the average horizontal force by diver on the raft.
Answer:
what language is that? but I believe the answer is the star gazing race. It's pretty fascinating how the colonial ridges fought.
Explanation:
Answer:
In the given diagram Arrow Y indicates the second law of thermodynamics.
Explanation:
Second law of thermodynamics:
Total entropy of the system remains constant for an isolated system. If the amount of heat is converted into work there is loss of energy to the surrounding.
Arrow W:
It represent the work done by the piston for its movement. From second law of thermodynamic amount of heat is converted into work there is loss of energy to the surrounding.
This part doesn't represent the loss of heat to the surrounding. Thus, it do not indicate second law of thermodynamic.
Arrow Y:
It represent the heat added when work is done by the piston for its movement. From second law of thermodynamic amount of heat is converted into work there is loss of energy to the surrounding.
This part represents the absorption of heat to the surrounding. Thus, it indicates second law of thermodynamic.
Arrow Z:
It represent the work done by the piston for its movement. From second law of thermodynamic amount of heat is converted into work there is loss of energy to the surrounding.
This part doesn't represent the loss of heat to the surrounding. Thus, it do not indicate second law of thermodynamic.
Thus, only arrow Y indicates the second law of thermodynamics.
Answer:
Explanation:
Atmospheric pressure = 7 x 10⁴ Pa
force on a disk-shaped region 2.00 m in radius at the surface of the ocean due to atmosphere = pressure x area
= 7 x 10⁴ x 3.14 x 2 x 2
= 87.92 x 10⁴ N
b )
weight, on this exoplanet, of a 10.0 m deep cylindrical column of methane with radius 2.00 m
Pressure x area
height x density x acceleration of gravity x π r²
= 10 x 415 x 6.2 x 3.14 x 2 x 2
=323168.8 N
c ) Pressure at a depth of 10 m
atmospheric pressure + pressure due to liquid column
= 7 x 10⁴ + 10 x 415 x 6.2 ( hρg)
= 7 x 10⁴ + 10 x 415 x 6.2
(7 + 2.57 )x 10⁴ Pa
9.57 x 10⁴ Pa