я потом заработаю и вам отдам A force of 500 N exist between two identical point charges separated by a distance of 40 cm. Calculate the magnitude of the two point charges
How many electrons represent a charge of -70мk C?
An attractive force of 1500 N exist between a +900 nC charge and another charge. The two charges are separated by 50mm. What is the magnitude and sign of the other charge ?
A +100 мк C charged is placed at the origin. A +200 мк C charge is place 2 m above the origin and a -300 мк C charged is placed 3m to the right of the origin. What is the magnitude and direction of the net force acting on the charge placed at the origin?
A positive charge of +50мк C is placed in an electric field of 50 000 N/C directed in the upward direction. What mass should the charge have to remain suspended in air?
За (1/2) секунды тело проходит по высоте расстояние:
h = (gt²/2) = (10*(1/2)²)/2 = 10/8 = 1,25 м.
Отсюда находим высоту верхней точки: Н = 6+1,25 = 7,25 м.
Используем формулу высоты верхней точки:
H = (Vo²*sin²α)/(2g). Из неё находим:
Vo = √(2gH)/sin α = √(2*10*7,25)/sin30° = √145/(1/2) = 2√145 ≈ 24,0832 м.
Дальность полёта определяем по формуле:
S=(Vo²*sin(2α))/g = (24,0832²*sin60°)/10 = 50,229 м.