The uniform I-beam has a mass of 71 kg per meter of length and is supported by the rope over the fixed 290-mm drum. If the coefficient of friction between the rope and the drum is 0.60, calculate the least value of the force P which will cause the beam to tip from its horizontal position.

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.