Explanation:
It is given that,
Radius of the front sprockets,
Radius of the rear sprockets,
The angular speed of the front sprocket is 12.3 rad/s,
(a) Linear speed of the front sprockets,
Linear speed of the rear sprockets,
(b) Let is the centripetal acceleration of the chain as it passes around the rear sprocket.
`Hence, this is the required solution.
Answer:
The rate of heat conduction through the layer of still air is 517.4 W
Explanation:
Given:
Thickness of the still air layer (L) = 1 mm
Area of the still air = 1 m
Temperature of the still air ( T) = 20°C
Thermal conductivity of still air (K) at 20°C = 25.87mW/mK
Rate of heat conduction (Q) = ?
To determine the rate of heat conduction through the still air, we apply the formula below.
Q = 517.4 W
Therefore, the rate of heat conduction through the layer of still air is 517.4 W