1. Kobieta pcha wozek z stala predkoscia 0,5 m\s. Z jaka moca to czyni, jezeli wypadkowa sil oporow .... Question from @Gimnazjalisteczka

September 2018 1 12 Report

1. Kobieta pcha wozek z stala predkoscia 0,5 m\s. Z jaka moca to czyni, jezeli wypadkowa sil oporow ruchow ma wartosc 10N.?

a) 20W

b) 5 W

c) 0,05 W

d) 10W.

2. W powietrzu dzwieki wysokie w porownianiu z niskimi maja:

a) taka sama dlugosc fali

b) mniejsza dlugosc fali

c) wieksza predkosc rozchodzenia sie

d) wieksza dlugosc fali

3. Energie kinetyczna posiada:

a) spietrzona woda

b) lecacy pocisk

c) napiety luk

d)wzniesiony mlotek

4. Mamy 3 kulki o tej samej objestosci, ktorych gestosc ma sie do siebie jak 1:3:5. Wynika z tego , że:

a) najwieksza mase ma kulka trzecia

b) masy kulek sa identyczne

c) najwieksza mase ma kulka druga

d) najwieksza mase ma kulka pierwsza

5.W jakim stanie skupienia okreslona masa wody ma najwieksza energie wewnetrzna:

a) zawsze taka sama

b)cieklym

c)lotnym

d)stalym

6. Potrawy szybciej gotuja sie w szybkowarach poniewaz:

a)potrawy sa w nich dobrze izolowane od otoczenia

b)eliminuja zjawisko parowania wody z potraw

c)są wykonane z odpowiednich stopow i gotowanie zachodzi w nich w temp. mniejszej niz 100 st. C

d)gotowanie odbywa sie w nich w podwyzszonym cisnienu, a wiec w temperaturze wyzszej od 100 st. C

7. Jezeli miedziana ramka oddala sie od prostoliniowego przewodnika z pradem ruchem jednostajnym to w niej:

a)indukuje sie prad elektryczny o kierunku przeciwnym do tuchu wskazowek zagara

b)======= o kierunku zaleznym od kierunku pradu w przewodniku prostolinijnym

c)======= o kierunku zgodnym z ruchem wskazowek zagara

d) nie indukuje sie prad.

8 Jak dlugo spada kamyk z wysokosci 45m jezeli opor powietrza pominiemy? (g=10m\s2)

a)4,5s

b)9s

c)3s

d)45s

9. Po przyblizeniu naelektryzowanej laski ebonitowej do igly magnetycznej nastapi:

a) odpychanie sie

b)zadne oddzialywanie

c) laska odepchnie biegun polnocny igly

d)przyciaganie sie

10. Do stojacego wozka o masie 1kg zbliza sie drugi o masie 0,5kg z predkoscia 6 m\s. Po zderzeniu wozki poruszaja sie razem (opor pomijamy) W tej sytuacji suma wartosci pedow wozkow wynosila:

a) przed i po 9kg*m\s

b)przed zderzeniem 6kg*m\s

c)po zderzeniu 6kg*m\s

d)przed i po 3kg*m\s

NIE MUSICIE PISAC ZADNYCH OBJASNIEN, WYSTARCZA ODPOWIEDZI A.B, C, D

:) DAJE NAJLEPSZA!!!!!

karolb96

10d

1 votes Thanks 1

Udowodnij, że jeśli a>1, b>1, , to ab>2041

Answer

Gimnazjalisteczka February 2019 | 0 Replies

Określ punkty przegięcia i wypukłość funkcji

Answer

Gimnazjalisteczka February 2019 | 0 Replies

Przetłumacz - ale błagam, jeśli masz użyć translatora, to daruj sobie i opuść to pytanie.... "Science usually progresses incrementally. Few and far between are contributions that sound the scientific alert that a radical upheaval is at hand. But here one man in one year rang the bell four times, an astonishing outpouring of creative insight. Almost immediately, the scientific establishment could sense that reverberations of Einstein’s work were shifting the bedrock understanding of reality." "To top it off, Einstein made for great copy. While squinting in the limelight and paying lip service to an ardent desire for solitude, he knew how to entice the world’s interest in his mysterious but momentous dominion." "Far from demystifying Einstein’s creative leaps, however, perusing his process only adds luster to the astonishing novelty and overwhelming beauty of the proposal."

Answer

Gimnazjalisteczka February 2019 | 0 Replies

Przetłumacz "Science usually progresses incrementally. Few and far between are contributions that sound the scientific alert that a radical upheaval is at hand. But here one man in one year rang the bell four times, an astonishing outpouring of creative insight. Almost immediately, the scientific establishment could sense that reverberations of Einstein’s work were shifting the bedrock understanding of reality." "To top it off, Einstein made for great copy. While squinting in the limelight and paying lip service to an ardent desire for solitude, he knew how to entice the world’s interest in his mysterious but momentous dominion." "Far from demystifying Einstein’s creative leaps, however, perusing his process only adds luster to the astonishing novelty and overwhelming beauty of the proposal."

Answer

Gimnazjalisteczka January 2019 | 0 Replies

Oblicz i zaznacz na płaszczyźnie elementy zbioru

Answer

Gimnazjalisteczka January 2019 | 0 Replies

Przetłumacz na polski "While RAP shows considerable promise, we feel there is much more that can be gained by freeing the design of reading from its vestiges in the pen and quill, to rethink the process from scratch." "Preliminary indications from a controlled experiment, conducted in our laboratory at UMass Boston, have been encouraging. Here, we examined new methods for reading, wherein 40 college students, both with and without dyslexia, read using a smartphone driven by Voice Dream reader, using RAP concurrently augmented with compressed text-to-speech (along with other visual modifications to address crowding and attention)." (jeśli potrzebny kontekst, to zdania pochodzą z artykułu o szybkim czytaniu, dostępnym na stornie scienificamerican "Using Technology to Break the Speed Barrier of Reading")

Answer

Gimnazjalisteczka January 2019 | 0 Replies

Oblicz granice ciagow: a) b) c) d) e)

Answer

Gimnazjalisteczka January 2019 | 0 Replies

Przetłumacz na polski - (jesli masz użyć translatora - błagam, odpuść sobie...) "Though smartphones hadn’t yet been invented when they did their original research in the late 1980’s, Gadi Geiger and Gerome Lettvin at MIT, as well as Keith Rayner and his colleagues at UMass Amherst, discovered instances of individuals whose struggles with reading were diminished by restricting the span of text processed during reading. And later, when the use of computers, smartphones, and e-readers became commonplace, more people began to notice this short-line effect, including many non-scientists like David Knight who was inspired to create a web process to help people shorten lines, he called “Friendly Type,” based on this effect. Other beneficial format modifications were also discovered. For example, Marco Zorzi and his colleagues in Italy and France showed in 2012 that when letter spacing is increased to reduce crowding, children with dyslexia read more effectively. Using the redesigned text on a smartphone, I was able to break my fast and begin to read books that had previously bedeviled me. And while this helped me rediscover the joys of reading, it also served to arouse my curiosity as a scientist: Why would something as simple as shortening the lines of text suddenly make it easier for me to read? Our theory, based on our eye tracking study, is that short lines help some people who otherwise struggle because they serve to guide attention during reading, and promote forward tracking in the text. "

Answer

Gimnazjalisteczka January 2019 | 0 Replies

Udowodnij, że jeśli a>1, b>1, , to ab>2041

Określ punkty przegięcia i wypukłość funkcji

Oblicz i zaznacz na płaszczyźnie elementy zbioru

Oblicz granice ciagow: a) b) c) d) e)

Zadanie z trygonometrii :) załącznik

Dwa zadania z wielomianów, w załaczniku

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