Answer:
d. T1 = 7°C; T2 = 29°C
Explanation:
The temperature of a substance is a measure of the average kinetic energy of is particle: in fact, the two quantities are proportional to each other.
Moreover, heat is always transferred spontaneously from a hotter object (higher temperature) to a colder object (lower temperature).
In this problem, we have a container placed in contact with a bucket of hot water: heat flows from the hot water to the container, until the two are at the same temperature.
The amount of energy transferred between the two is proportional to the initial temperature difference between the container and the water:

Since in the two situations the amount of energy transferred is the same, then it means that the temperature difference between the two substances is the same in the two situations. So we can write:

And from the choices given, we see that the only option that satisfies this condition is

Number #2 is joule
In the SI system the unit of heat is the joule. The calorie was defined so that the heat capacity of water was equal to one.The heat capacity of a substance is the amount of heat required to raise the temperature of a defined amount of pure substances by one degree.
Number #3 is Endothermic
Why? I can't explain. I Just left class where they were just explaining that.
Answer:
the correct answer is option 'b': More than
Explanation:
The 2 situations are represented in the attached figures below
When an object is placed in air it is acted upon by force of gravity of earth which is measured as weight of the object.
While as when any object is submerged partially or completely in any fluid the fluid exerts a force in upward direction and this force is known as force of buoyancy and it's magnitude is given by Archimedes law as equal to the weight of the fluid that the body displaces, hence the effective force in the downward direction direction thus the apparent weight of the object in water decreases.
Answer:
The product is Methyl cyanoacetate
Explanation: see structure attached
Answer:
bet bet
Explanation: I'm abby lol