********** **********. 4) A submarine operates in ocean at depth of 5.0 km. It has a window of area 50 cm². The density of the ocea water is 1.025x10³ kg/m³. The force (in kN) acting on the window by the water is: 25.6 b) 5.0 ******* A car is raised on the larger piston by a hydraulic lift of cross-sectional area 90 cm² by using a force of 7000 N applied on the smaller piston of cross-sectional area 30 cm², then the mass (in kg) of the ar is: 300 b) 700 c) 256.2 c) 31500.0 d) 512.5 d) 2100.0
********** **********. 4) A submarine operates in ocean at depth of 5.0 km. It has a window of area 50 cm². The density of the ocea water is 1.025x10³ kg/m³. The force (in kN) acting on the window by the water is: 25.6 b) 5.0 ******* A car is raised on the larger piston by a hydraulic lift of cross-sectional area 90 cm² by using a force of 7000 N applied on the smaller piston of cross-sectional area 30 cm², then the mass (in kg) of the ar is: 300 b) 700 c) 256.2 c) 31500.0 d) 512.5 d) 2100.0
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Transcribed Image Text:d) 714.0
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4) A submarine operates in ocean at depth of 5.0 km. It has a window of area 50 cm². The density of the ocea
water is 1.025x10³ kg/m³. The force (in kN) acting on the window by the water is:
************
c) 446.4
=) 25.6
b) 5.0
c) 256.2
d) 512.5
A car is raised on the larger piston by a hydraulic lift of cross-sectional area 90 cm² by using a force
of 7000 N applied on the smaller piston of cross-sectional area 30 cm², then the mass (in kg) of the
car is:
300
b) 700
c) 31500.0
.........
d) 2100.0
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