¿Cuál es la masa de 12 cm^3 de glicerina, si su densidad absoluta es de 1200kg/m^3? Dé el resultado en gramos

Ineed the answers for these promblems i have

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?