Find the rate (in cm3 / s) at which the volume V is changing when the length L is 50 cm and increasing at the rate of 0.2 cm per second, the width W is 40 cm and increasing at the rate of 0.1 cm per second and the height H is 30 cm and decreasing at the rate of 0.1 cm per second.
where R10, R20, α, β, T0 are constant.
Find the rate of change dR/dT.