Answer:
Efficiency of a machine is how well the machine works and what the machine is capable of doing.
Mechanical advantage=Load/Effort.
720/180=4
Answer:
The first law states that if the net force is zero, then the velocity of the object is constant.
Change in color
Change in color is a physical reaction
B is the correct answer . That make the most sense
Answer:
222.22 N
Explanation:
r = 5 cm = 0.05 m, R = 1.5 m, f = ? , F = 200,000 N
Use pascal's law
F / A = f / a
F / 3.14 x R^2 = f / 3.14 x r^2
F / R^2 = f / r^2
f = F x r^2 / R^2
f = 200000 x 0.05 x 0.05 / (1.5 x 1.5)
f = 222.22 N
