Est. Length: 2:00:00 Shayla Jackson: Attempt 4
Question 1(1 point)
What do seismic waves and so
waves have in common?
They're mechanical wave
They're electromagnetic
They're phonetic waves
They're permanent wave
Question 2 (1 point)
What does it mean when a -
amplitude what does it mean when a waves amplitude increases increases?

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

At what time will the interfering waves have an amplitudeof zero?

An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?