4. A submarine dives to a depth of 50 meters in the ocean. What is the force act

Question

4. A submarine dives to a depth of 50 meters in the ocean. What is the force acting on a hatch that has an area of 2.5 square meters? (Points : 1)
1,025,000 N
1,210,000 N
1,225,000 N
1,500,000 N
1,725,000 N


5. The gauge pressure of the water in a swimming pool at 10 ft is ____________ the gauge pressure of the water at 5 ft (Points : 1)
1/4
1/2
equal to
2 times
4 times


6. When people get into a small boat it settles lower in the water and (Points : 1)
the buoyant force increases as a result of more water being displaced
the net force on the boat again becomes zero
the pressure on the bottom of the boat becomes greater because it is deeper in the water
all of the above


7. The pressure exerted by a gas is the result of (Points : 1)
the Bernoulli effect
molecular collisions
Pascal

Explanation / Answer

4) 1,225,000 N 5)eual to 2 times 6) all the above 7)the Bernoulli effect

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