Физика, опубликовано 09.01.2019 16:01
Тіло падає протягом 5 секунд.з Якої висоти воно падає.? Яку швидкість матиме під час удару об землю?
Ответ оставил: Гость
letter dinosaur
lesotozavr was bipedal herbivorous dinosaur, he was one of the smallest and most primitive among all ornithischia dinosaurs. he had a very long neck and small head with large eyes and a long face. the lower jaw ended toothless beak, the upper jaw was armed with small teeth.
most ornithischia dinosaurs had such teeth. leaf-shaped teeth were close to the edge of the jaw. consequently, there was no lesotozavra cheeks. jaws just moved down, so were adapted for biting. forelimbs were short rear - long. tendon brace tail that balances the body and mind during the run. lesotozavr devoured stunted bushes, and at risk could at any time to escape.
Ответ оставил: Гость
Ответ оставил: Гость
L0 = 88мм = 0,088м;
F1 = 120 Н;
L1 = 120мм = 0,120м;
F2 = 90 Н;
L2 -?
F1 = k*(L1 - L0);
F2 = k*(L2 - L0);
F1/F2 = k*(L1-L0)/(k*(L2-L0)) = (L1-L0)/(L2-L0);
L2 - L0 = (F2/F1)*(L1-L0);
L2 = L0 + (F2/F1)*(L1 - L0);
L2 = 0,088м + (90Н/120Н)*(0,12м - 0,088м) = 0,088м + (3/4)*(0,032м) =
= 0,088м + 0,024м = 0,112м = 112 мм.
F1 = 120 Н;
L1 = 120мм = 0,120м;
F2 = 90 Н;
L2 -?
F1 = k*(L1 - L0);
F2 = k*(L2 - L0);
F1/F2 = k*(L1-L0)/(k*(L2-L0)) = (L1-L0)/(L2-L0);
L2 - L0 = (F2/F1)*(L1-L0);
L2 = L0 + (F2/F1)*(L1 - L0);
L2 = 0,088м + (90Н/120Н)*(0,12м - 0,088м) = 0,088м + (3/4)*(0,032м) =
= 0,088м + 0,024м = 0,112м = 112 мм.
Физика, опубликовано 09.01.2019 16:01
Физика, опубликовано 09.01.2019 16:01
Физика, опубликовано 09.01.2019 16:01