Which of the following colors of visible light has the longest wavelength?

If 46.1 g of copper at 11.6 °C is placed in 85.0 g of water at 72.4 °C, what is the final temperature of the mixture? The specific heat capacities of copper and water are 0.385 J/g ⋅ K and 4.184 J/g ⋅ K, respectively.

Calculate ΔU of a gas for a process in which the gas absorbs 45 J of heat and does 11 J of work by expanding.

What is the minimum mass of ice at 0.0 °C that must be added to 1.00 kg of water to cool the water from 28.0 °C to 12.0 °C? (Heat of fusion = 333 J/g; specific heat capacities: ice = 2.06 J/g⋅K, liquid water = 4.184 J/g⋅K)

Which of the following molecules or ions are isoelectronic: SO3, NF3, NO3–, CO32–?

Which of the following ranks the regions of the electromagnetic spectrum from shortest to longest wavelength.

For questions 20-21 use the following R output from a ARMA(1,2)-GARCH(1,1):    

Which of the following best describes the difference between the ARCH(q) and GARCH(p, q) models? 

Which of the following is a limitation of ARCH models (select all correct responses):  

The ARCH model assumes positive and negative shocks have the same effect on volatility because it depends on the log of the previous shocks