What is the heat flux (W/m^2), due to radiation heat transfer, from a black body if the surface temperature is 1000C? The convection heat transfer coefficient is 55 W/(m^2 C).

Which of the following is not am example of a polymer? protein nylon kevlar concreta

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?