Сколько электронов протекло по проводнику за 0, 01с при силе тока 2а

t=0.01 c    I=2 A     n=?

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q=I*t=n*e

n=I*t/e=2*0.01/(1.6*10^-19)=1.25*10^17 штук

Планетарной

Объяснение:

Резерфорд предложил Планетарную модель атома. Поэтому пропущенное слово "Планетарной".

Остальные слова из предложенных в условии тоже не случайны.

Впервые планетарная модель атома была опубликована Резерфордом в журнале "Philosophical Magazine"  в мае 1911 года на основании анализа и статистической обработки результатов экспериментов по рассеиванию альфа-частиц в тонкой золотой фольге.

Планетарная модель Резерфорда пришла на смену «модели пудинга с изюмом» Томсона, которая предполагает, что отрицательно заряженные электроны помещены внутрь положительно заряженного атома с распределённым по всему объёму атома положительным зарядом, подобно изюминкам в пудинге.

My weekday

I get up at 6:45. I jump out of bed, turn on the radio and do morning exercises to the music of the radio. Then I go to the bathroom, wash my face and brush my teeth with a toothbrush. It will not take me much time, no more than ten or fifteen minutes. Then I get dressed and sit down at the table to have breakfast. I usually have a cup of tea or coffee, an egg and bread and butter.

After breakfast, I go to college. Since I live far away, I ride the bus or metro. I need more time to ride the bus. If I have little time, I ride the subway. My lessons begin at 9 o’clock. We have six lessons every day. At a quarter to one we have a lunch break.

Since I cannot return home for lunch, I take it in the dining room of our college.

For lunch, I have meat or fish with potatoes and a cup of strong tea or coffee with cake. At ten minutes to three lessons have ended, and I am going home. When I get home from college, I have dinner. My dinner usually consists of three dishes.

For the first course, I have some soup, then some meat or fish. For dessert, I put out fruit or ice cream. After lunch, I help my mom wash the dishes. Then I do my homework. It usually takes me about two hours.

At eight or nine o’clock I have dinner. I have a salad, a slice of sausage and bread, yogurt or cereal.

In the evening I listen to the radio or watch TV. If the program is not interesting, I go to the cinema or to the theater. Sometimes I go for a walk with friends. We talk about different things and usually have a good time.

At 11 o'clock I go to sleep.