Question

Помогите пожалуйста решить задачи по физике. Очень надо

Answer 1

3-63

$F = mg$

$m = \frac{F}{g} = \frac{392}{10} = 39.2 \: kg$

3-65

$m = Vp$

$m = 750 \times 0.025 = 18.75 \: kg$

3-67

$m1 = 1 \: kg \\ m2 = Vp = 0.005 \times 800 = 4 \: kg \\ m = m1 + m2 = 5 \: kg \\ p = n = mg = 50$

3-64

$F = mg \\ m = \frac{ F }{g} \\ m = 4.9 \: kg$

3-66

$P = mg \\ P = Vpg \\ P =0.01125 \times 700 \times 10 = 78.75 \:$