Question

An object with a density of 2500 kg/m3 weighs 245 N in air and 125 N when fully submerged into a liquid. Find the density of the liquid.

Answer #1

A large piece of cork weighs 0.250 N in air. When held submerged
underwater by a spring scale as shown in The figure shows that the
spring scale reads 0.738 N. Find the density of the cork.
kg/m3

A box of mass 308 kg weighs 623 N when submerged in a liquid of
specific gravity 3.36. Find the volume of the box, in
m3.

The gravitational force exerted on a solid object is 4.20 N.
When the object is suspended from a spring scale and submerged in
water, the scale reads 3.00 N (figure). Find the density of the
object.
kg/m3

An object weighing 344 N in air is immersed in water after being
tied to a string connected to a balance. The scale now reads 260 N.
Immersed in oil, the object appears to weigh 283 N. (a) Find the
density of the object. kg/m3 (b) Find the density of the oil.
kg/m3

As shown in the above figure, a solid object has a density of
1200 kg/m3 and a volume of 8.00x10^-5 m³. It is lowered on a string
into water and completely submerged without touching the container.
The density of water is 1000 kg/m3.
Keep 3 decimal places in all answers. (Don't use scientific
notations.)
Without the string, would the solid object sink in water or
float in water? No submission.
(a) What is the magnitude of the weight (in Newtons)...

1. The density of
water is 1000 kg/m3. Compared to this, the
density of air at sea level is
approximately
1000 times less.
approximately 100
times less.
approximately 10
times less.
about the
same.
2. What is the gauge pressure at the bottom
of a 5 feet deep swimming pool? (Answer in Pa)
3.You are given the
task to determine the volume of an irregular shaped object. You
hang it on a scale and measure its weight to be 34...

In the picture below, the object floats in water (density 1000
kg/m3) with one third of its volume being submerged.
The density of the object is:
0.33 g/cm3
0.67 g/cm3
1.0 g/cm3
1.33 g/cm3
1.67 g/cm3

An object made of a metal alloy with a density of 7850 kg / m^3
feels 300 N lighter when lifted in water. Use a water density value
of 1000 kg / m3 and an acceleration due to the gravity of 9.8 m /
s^2.
a. What is the volume of the object in m3?
b. What is the weight of the object in air in N?

An object with a density of 681.0 kg/m3 and a mass of 1831.0 kg
is thrown into the ocean. Find the volume that sticks out of the
water. (use ρseawater = 1024 kg/m3)

An object weighing 300 N in air is immersed in water after being
tied to a string connected to a balance. The scale now reads 255 N.
Immersed in oil, the object appears to weigh 280 N.
(a) Find the density of the object.
(b) Find the density of the oil.
kg/m3

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