Why am I 456 points, why am I still a second level talent?

Level 2 101 500 Assistant Trainee Magician Xiucai.

Note! Yes"Level 2"!

Wow! Is there a chairman, a demon god, a scholar and the like?

Wow, then I'm still far from level 5?? 55555~

Obviously, I'm of the same rank as you, so I don't understand either.

Of course, it is necessary to answer patiently, preferably in the areas that you are familiar with, and answer those that feel easy to score based on personal experience. Or you register a few more numbers, answer a question with bonus points at the same time, answer from different angles, so that the probability of getting points will increase, and then concentrate the earned points into one number.

Although the name is the same, the level is different and the score is different.

It proves that there is no end to learning. I don't know when I'll be able to come out.

There's not much difference, it's just that the series is different.

See clearly!

Level 2 101 500 Assistant Trainee Magician Xiucai.

So more than 300 points is still Xiucai level 2!

I'm over 900 and only level 3!

Hehe, don't worry

More than 300 points is.

Xiucai Level 2. What do you want?

1. When half of the kerosene in the bottle is used, the physical quantities that do not change compared with the original are (density, specific heat) of the remaining kerosene

2. In the following analysis, the reason why the heat engine efficiency of the four-stroke gasoline engine is less than 1 is (the exhaust gas temperature is still very high).

The temperature after mixing 30 grams of water with 20 grams of 20 degrees water is 20 degrees because no heat transfer takes place.

Other answers refer to shenjay's bar, basically the same as mine!

Note: I haven't read a book for a long time, so I can't guarantee that everything is right! Hope it helps!

1. Multiple choice questions.

1.The density, specific heat capacity and calorific value are all unchanged.

2.No. 3.Ninghua, the size has become smaller.

2. Fill in the blanks.

1.Gravitational potential energy, the water surface becomes higher.

m=6th power j*24 hours [c water*(80°C)]3. Answer the question.

1.The specific heat of land is less than that of water.

2.The masses are equal, t=(20+30) 2

Coal Q*45%=C water m water (T-T0).