Answer:
mm of Hg
Explanation:
As we know that volume is constant so by ideal gas equation we have
now for constant volume condition we have
here we know that
mm of Hg
now from above equation
mm of Hg
Answer:
Explanation:
We shall represent all displacements in vector form , in terms of i and j . I represents unit displacement towards east and j represents unit displacement in north direction .
First displacement D₁ = 20 j
second displacement D₂ = -15 j
Third displacement D₃ = 10 i
Fourth displacement D₄ = 12 cos30 i + 12 sin30 j [ 12 cos 30 is displacement towards east and 12 sin30 is displacement towards north ]
Total displacement = 20 j - 15 j + 10 i + 12 cos30 i + 12 sin30 j
= 5 j + 10 i + 10.4 i + 6 j
= 20.4 i + 11 j
Magnitude of displacement = √ ( 20.4² + 11² )
= √ ( 416.16 + 121)
= √ 537.16
= 23.17 m
Aristotle's geocentric theory failed to match the expected predictions because a few celestial objects appear to have retrograde motion.
Answer: Option B
<u>Explanation:</u>
Aristotle’s theory states that all the bodies in universe rotate around the earth, and earth is located at the centre. But, the most serious challenge it was given was that, the difference found in the paths of revolution of mercury and Venus. They are revolving around the sun, and not the earth, periodically.
This is the significant drawback, and major factor for the Copernicus and the other models to be achieved. The mercury and Venus, closest planets to earth, and the sun too, are not following the earth’s path. And hence, upon studying clearly, all celestial bodies do not follow a path round the earth, but around a fireball, that is sun.
The 175 N force is in the path A to B since a stick can’t pull the doorknob, this can be written as:
(F ) ⃗= 175⋅(73i ⃗+990 j ⃗+494 k ⃗)/(√73² +990²+ 494²
)
(F ) ⃗=(11.5i ⃗+156 j ⃗+78.0k ⃗ )N
The displacement form C to B is:
(r ⃗ )_(B/C)=(683 i ⃗+860 j ⃗+0k ⃗ )mm
The formula for the moment about C is
M ⃗_c= (r ⃗ )_(B/C) x (F ) ⃗
M ⃗_c= (683 i ⃗+860 j ⃗ ) x (683 i ⃗+860 j ⃗+0k ⃗ )mm.N
M ⃗_c= (67.1 i ⃗+53.3 j ⃗+116 k ⃗ )m.N
If you mean gasoline, then yes.
If you mean matter in the gaseous state, then no. Any amount of gas always fills its container.
