Arectangle had sides of 8.80 ft and 24.1 ft. calculate the area of the rectangle in cm^2 (you should get 197000 cm^2) show your work

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Could someone . i have tried to solve myself but my calculation is off

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.