Explain the following observations, referring to the appropriate process of heat transfer in each case. Two cups of tea are poured at the same time. They are left for ten minutes
One of the cups has a metal teaspoon left in it. The tea in this cup is cooler
than the tea in the other cup at the end of the ten-minute period.

Urgent
Please answer correctly.

Which statement correctly describes the relationship between frequency and wavelength?

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.