12- The parabolic shaped gate with a width of 2 m shown in Figure is hinged at point B. Determine the force F needed to keep the gate stationary. 13- Consider a submerged curved surface. Explain Water C Oil, SG = 1.5 3 m D 9 m y B 4 m
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- A scale reads 160.0 N when a piece of aluminum is hanging from it. What does it read when it is lowered so that the aluminum is submerged in water?43. Given a square board of area 0.00500 m^2. A small statue of mass 400 grams is placed on the board. Which expression yields the pressure of the statue on the board in SI units? a. 0.400 times 9.8 divided by 0.00500 b. 0.400 times 0.00500
- An empty 80-g can with a base radius of 8.0 cm and a height of 15 cm floats upright in fresh water. What height of the can is submerged? a. 1.2 cm b. 0.40 cm c. 0.80 cm d. 1.0 cm e. 0.60 cm5. DETAILS 777777.78 Pa MY NOTES A 70.00kg ballroom dancer wearing high heels accidentally steps on her partner's foot. If her entire weight was momentarily supported by the heel of her shoe, which has a surface area of 0.90 cm², what amount of pressure does this apply to her partner's foot? 762.22 Pa 76222.22 Pa 7622222.22 Pa ASK YOUR TEACHER Suppose she instead stepped on her partner's foot with her forefoot instead of her heel (i.e., larger surface area). Would the pressure on her partner's foot be greater, less than, or equal to if she stepped on her partner with her heel? The pressure from the forefoot would be greater than the pressure from her heel. The pressure from the forefoot would be equal to the pressure from her heel. The pressure from the forefoot would be less than the pressure from her heel.