The answer is C. Hope this helps.
plants look green in sunlight because, all other colors except green are absorbed by the plants and only green color is reflected back, hence plants look green in sunlight.
Torque = r x F
|F| = mg = 60 * 10 N = 600 N ( assuming g ~ 10m/s^2)
distance of fulcrum = torque / Force = 90/600 m = .15 m.
Answer:
27.82 m/s
Explanation:
The radius of the hose is half of its diameter

So its area must be

The speed of water coming out of the hose is its flow rate divided by the cross-section area of the hose
