At the beach, you can get a sunburn while under the shade of an umbrella. Explain the statement?

How much heat is needed to raise the temperature of 0.200 kg of water from 20 oC to 100 oC? Note that the specific heat of water is 4200 J/(kg oC).

250 g of coconut milk is added to a 2.4 kg pot of soup. The milk is initially at 50 degrees celcius and has a specific heat capacity of 3982 J/kg degrees celcius and the soup is initially at 160 degrees celcius with specific heat capacity of 3725 J/kg degrees celcius. When the milk and soup have come to thermal equilibrium, what is the final temp of the mixture? Please show the answer in degrees celcius

e) Given the following data collected about the velocity of the red light (650 nm) and green light (510 nm) on air. VredT-o'c) = Vgreenr-o°c) = Vred(r-1'c)=Vgreenr=11°C)| Vred-45°c) = Vgreen (-45'°C) (T=0 (T=11°C) What are your conclusions comparing the effect of the temperature and frequency on sound and light velocities? Justify your answer based on the data presented and the physics of sound and light.