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1. The mattress of a water bed has a length of 2.00 m, a width of...

1. The mattress of a water bed has a length of 2.00 m, a width of 2.00 m and a depth of 30.0 cm. Find the weight of the water on the mattress and find the pressure exerted by the water on the floor when the bed is in its normal position. Assume that the entire lower part of the bed makes contact with the floor.

The water in the mattress has a mass of:
a) 1000 kg
b) 1200 kg
c) 1000 g
d) 2000 g

2. The mattress of a water bed has a length of 2.00 m, a width of 2.00 m and a depth of 30.0 cm. Find the weight of the water on the mattress and find the pressure exerted by the water on the floor when the bed is in its normal position. Assume that the entire lower part of the bed makes contact with the floor.

The weight of the water in the mattress is:
a) 2.4 x 104 N
b) 1.0 x 104 N
c) 1.8 x 104 N
d) 1.2 x 104 N

3. The mattress of a water bed has a length of 2.00 m, a width of 2.00 m and a depth of 30.0 cm. Find the weight of the water on the mattress and find the pressure exerted by the water on the floor when the bed is in its normal position. Assume that the entire lower part of the bed makes contact with the floor.

The pressure exerted by the bed on the floor is approximately:
a) 3000 Pa
b) 2000 Pa
c) 2500 Pa
d) 6000 Pa

4. The mattress of a water bed has a length of 2.00 m, a width of 2.00 m and a depth of 30.0 cm. Find the weight of the water on the mattress and find the pressure exerted by the water on the floor when the bed is in its normal position. Assume that the entire lower part of the bed makes contact with the floor.

If the bed were replaced by another that has a weight of 300 lbs and is supported by the four legs that have a diameter of 2.00 cm. What pressure does the bed exert on the surface?
a) 5.00 x 105 Pa
b) 4.5 x 105 Pa
c) 6.0 x 104 Pa
d) 2.7 x 105 Pa

5. The mattress of a water bed has a length of 2.00 m, a width of 2.00 m and a depth of 30.0 cm. Find the weight of the water on the mattress and find the pressure exerted by the water on the floor when the bed is in its normal position. Assume that the entire lower part of the bed makes contact with the floor.

The fluid presented in the exercise is a fluid:
a) Turbulent
b) Laminate
c) Incompressible
d) Viscous

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Answer #1

Q.1) Mass of the water

Option C

Q.2) Weight of the water

Option D is correct.

Q.3) Pressure at the bed

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