Answer:
see explanation
Step-by-step explanation:
To find cscθ we require to find the third side of the triangle.
let 3rd side be x and using Pythagoras' identity
x² + 8² = 9²
x² + 64 = 81 ( subtract 64 from both sides )
x² = 17 ( take square root of both sides )
x =
Then
cosθ = =
cscθ = =
tanθ = =
Answer:
V₂ = 252 cm³
Step-by-step explanation:
Charles's law = If the pressure is held constant, the volume of a gas varies directly with the temperature measured on the Kelvin scale.
Mathematically,
We have, V₁ = 192 cm³, T₁ = 112 K, T₂ = 147 cm³, V₂ = ?
Using the above relation of Charles's law :
So, the new temperature is 252 cm³.