Suppose you have a number of mystery substances. They can be of any phase of mat

Question

Suppose you have a number of mystery substances. They can be of any phase of matter, any kind of material from the periodic table. They are all at the same temperature. What characteristic(s) of the substances would alien, you to sort these substances according to the speed of individual atoms? What characteristic (s) would allow you to sort these substances according to total thermal energy contained? State the laws of thermodynamics and what they mean, in your own words. Take an imaginary walk through your avenge day. List the sources of heat in your daily life, and whether they get to you by radiation, conduction, or convection. A car rear-ends and sticks to a truck, and this question concerns their speeds just before and just after their collision (momentum is conserved). The car has a mass of 1000 kg, the truck is 3000kg Initially. the car b going 20m/s. but the truck b only going 5 m/s (coming from a stop light) in the same direction. Calculate the final speed of the car/truck combination after the collision. Discuss the future of your choice of alternator energy: solar, wind, or hydro. What tasks will it be able to do. and what will it not be able to do? What are the pros and cons of using that kind of energy? What technological innovation would make it easier to use? Give numbers whenever they are relevant to the argument. Suppose you were invited to address a joint session of Congress and educate them about some topic of choice from chapter 2 or 3: atoms, beat, force, gravity, etc. What topic would you choose? What would you tell them? Why do you think it's important for them to know? (Tie your topic to a current cent that might affect how the congress members would vote or what legislation they would propose, if they understood it completely, but keep it general. This b not an internet search question: use what you already know.)

Explanation / Answer

By policies, i can only answer one question. I'll take the question 15.

In one day, there is too many heat sources. Some sources are mentioned here:

*Hot water from the shower. This heat transfer occurs by convection.

*Cup with hot drink. This heat transfer occurs by conduction.

*Calefaction. This heat transfer occurs by convection.

*Sunlight. This heat transfer occurs by radiation.

*Kitchen, when cooking. This heat transfer may occur by conduction in case of contact with the stove, and by convection if there is no contact.

*Back side of the refrigerator. As in the previous case, this heat transfer may occur by conduction or by convection.

*Microwave. Heat transfer by radiation.

*Oven: Heat transfer by convection.

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