A system absorbs 52 joules of heat and does work using 25 joules of energy. What is the change in the internal energy of the system? 25 joules 27 joules 52 joules 77 joules.

Which of the following would be of greatest concern to a speaker in presenting to children? choose only two. 1. age 2. expectation 3. ethnicity 4. knowledge 5. gender

Which of the following world and national events led to a new view of people with disabilities in the us:     a.  world war i and ii veterans with disabilities returned home after the wars.b.  john f. kennedy was elected president and had a sister with a disability.c.  the civil rights and feminist movements.d.  all of the above.

Aform of government in which the people rule,either directly or through elected representatives