The specific heat capacity of iron is 440j(kgk) how much thermal energy is gained when the temeperature of 800g of iron is raised by 120 degrees c?

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final