Which student is doing work?

a. rebecca is leaning agaisnt the classroom wall.

b. marcus is lifting his backpack onto his shoulders.

c. starr is carrying her lunch tray to the table.

d. louis is studying the science chart on the wall

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

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?