A child is sitting with her puppy on a playground merry-go-round spinning at con

Question

A child is sitting with her puppy on a playground merry-go-round spinning at constant speed. The puppy suddenly jumps off the merry-go-round. What happens to the speed of the merry-go-round? It remains the same. It increases. It decreases. none of these Which of the following is not a method of heat transfer? Conduction Convection Constipation Radiation none of these The intensity at which a person can barely hear a sound is about 120 W/tn2 10-12W/m2 1 W/m2 0 W/m2 none of these A piston compresses a gas completely contained in a cylinder. During the compression, the gas releases 440 J of heat while its internal energy decreases by 780 J. What is the work done by the piston? (A) +340 J (B)+1220 :-340J -1220J (E) not enough info Suppose the total change in entropy for a certain process is positive. Which of the following statements must be true? The process is isothermal. The process is reversible. The process is adiabatic. The process is not spontaneous. not enough info

Explanation / Answer

6 B 7 C 9 D 10 A

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.