The 7000 N/m spring is compressed 3 m. The distance from the spring’s relaxed position to the 4 m long 30° incline is 2 m. What is the velocity of the 30 kg block the instant it lands? ANS: 48.93 m/s

Which changes of state do the labels represent? a: b: c:

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature