- #1
ness9660
- 35
- 0
A styrofoam slab has a thickness of 12.6 cm
and a density of 470 kg/m 3 . What is the area
of the slab if it floats just awash (top of slab
is even with the water surface) in fresh water
when a 65.7 kg swimmer is aboard? Answer
in units of m 2 .
im trying to use pressure=density of water times thickness of slab times 9.8 and mass=density of water times thickness of slab times area
i think I am on the correct path here but I am sure as how to account for the force of the person on the slab in these equations
A tall water cooler tank is standing on the
floor. Some fool punched two small holes
in the tank's wall, one hole at a height of
34 cm above the floor and the other hole
60 cm directly above the first hole and 94 cm
above the floor. Each hole produces a jet of
water that emerges in a horizontal direction
but eventually hits the floor at some distance
from the tank.
If the two water jets (emerging from each
hole) hit the floor at exactly the same spot,
how high H is the water level in the tank
(relative to the room's floor)? Answer in
units of cm.
i can't even find the correct equations to use for this problem, can anyone offer some help
and a density of 470 kg/m 3 . What is the area
of the slab if it floats just awash (top of slab
is even with the water surface) in fresh water
when a 65.7 kg swimmer is aboard? Answer
in units of m 2 .
im trying to use pressure=density of water times thickness of slab times 9.8 and mass=density of water times thickness of slab times area
i think I am on the correct path here but I am sure as how to account for the force of the person on the slab in these equations
A tall water cooler tank is standing on the
floor. Some fool punched two small holes
in the tank's wall, one hole at a height of
34 cm above the floor and the other hole
60 cm directly above the first hole and 94 cm
above the floor. Each hole produces a jet of
water that emerges in a horizontal direction
but eventually hits the floor at some distance
from the tank.
If the two water jets (emerging from each
hole) hit the floor at exactly the same spot,
how high H is the water level in the tank
(relative to the room's floor)? Answer in
units of cm.
i can't even find the correct equations to use for this problem, can anyone offer some help