Temperature of a body varies with time as `T=(T_(0)+at^(2)+beta sin)K`, where `T_(0)` is the temperature in at t=0sec. `& alpha=2//piK//s^(2)&beta=-4K`. then rate of change of temperature `((dT)/(dt))` at t=

In troposhere, temperature varles linearly with elevation as T=T_(0)-ay, where T_(0) is the temperature at lthe earth's surface, then

Resistance of a resistor at temperature t^(@)C is R_(f)=R_(0)(1+alpha t+beta t^(2)) . Here R_(0) is the resistance at 0^(@)C .The temperature coefficient of resistance at temperature t^(@)C is

Power applied to a particle varies with time as P=(4t^(3)-5t+2) watt, where t is in second. Find the change its K.F. between time t = 2 and t = 4 sec.

Power applied to a particle varies with time as P=(4t^(3)-5t+2) watt, where t is in second. Find the change its K.F. between time t = 2 and t = 4 sec.

int_(0)^(2 pi)[sin t]dt

A rod of length L with sides fully insulated is made of a material whose thermal conductivity K varies with temperature as K=(alpha)/(T) where alpha is constant. The ends of rod are at temperature T_(1) and T_(2)(T_(2)gtT_(1)) Find the rate of heat flow per unit area of rod .

A rod of length L with sides fully insulated is made of a material whose thermal conductivity K varies with temperature as K=(alpha)/(T) where alpha is constant. The ends of rod are at temperature T_(1) and T_(2)(T_(2)gtT_(1)) Find the rate of heat flow per unit area of rod .