Asquare steel bar of side length w = 0.18 m has a thermal conductivity of k = 15.3 j/(s⋅m⋅°c) and is l = 1.7 m long. once end is placed near a blowtorch so that the temperature is t1 = 81° c while the other end rests on a block of ice so that the temperature is a constant t2.
input an expression for the heat transferred to the cold end of the bar as a function of time, using a = w2 as the cross-sectional area of the bar. sig. gif? tid=2g65-6a-d8-4e-a33a-19217
how much energy, in joules, was conducted in 1 hour, assuming t2 = 0° c?
input an expression for the mass of the water melted in 1 hour using q1 from above and lf the latent heat of fusion. sig. gif? tid=2g65-6a-d8-4e-a33a-19217

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.