Answer:
Gives us energy by providing energy to the cells inside our body. Carbohydrates in food are used first. When they are all used up, the body then uses fats, and then proteins as energy sources.
Proteins contain 4 calories in every gram, while fats contains 9 calories for every gram, carbohydrates carbohydrates contain 4 calories in each gram. Therefore, 15 grams of carbohydrates contain 15 ×4 = 60 calories, 8 grams of fat will have 8×9= 72 calories and 8 grams of proteins contain 8×4= 32 calories. Hence, the total number of calories will be 60+32+72 = 164 calories
1. Thermostat.
2. C. Thermal energy.
3. Internal combustion engines are those in which combustion takes place inside the engine. Examples are petrol or diesel engines. External combustion engines are those engines in which combustion takes place outside the engine. Examples are steam engine and steam turbines.
Hey There! :)
I have this same question on an assignment I have to do and I was trying to figure it out as well and was gonna see if anybody else had this question answered. I'm sorry, I wish I could help. I'll get back to you if I have help and get it done. Good luck!
1: I believe is B.
2: I believe is True
3: I believe is D.
4: I believe is D.
5: I'm not completely sure about this one, because it depends on the substance. Rocks molecules don't move because the object is solid, no matter how cold or hot the rock is. But if I were to guess, I would say True.
6: I believe is A.
7: I believe is B.
8: I believe is False.
9: I believe is False.
10: I believe is C.
11: I believe is False.
12: I believe is C.
13: I believe is A.
14: I believe is A.
I really hope I got all of these correct. Hope this helped!
-TTL
