PHYSICS HELP DENSITY

An object hanging on a scale reads 24.0g when submerged in water, but 48.0g when submerged in oil (specific gravity 0.80) Find the density of the object.

1. 👍 0
2. 👎 0
3. 👁 132
1. assume Mass M for the object.

in water, 24=M-densitywater*volume
in oil, 48=M- densityoil*volume

subtract top equation from bottom.

24=densitywater*volume-densitoil*volume
volume=24/(1-.8) cm^3
volume= 120cm^3

Now, solve for M.
24=M-1*120
M=144grams

density=144/120 g/cm^3

1. 👍 0
2. 👎 0

Similar Questions

1. Physics! Volume!! HELP

An object hanging on a scale reads 24.0g when submerged in water, but 48.0 g when submerged in oil (specific gravity 0.80) Find the density of the object.

asked by Mark on April 27, 2016
2. Physics - Buoyancy

A scale reads 20.3 N when an object is not submerged in water and 20.0 N when the object is (completely) submerged in water. What is the specific gravity of the object?

asked by Phil on November 11, 2010
3. physics

the gravitational force exerted on a solid object is 5.00N.when the object is suspended from a spring scale and submerged completely in water the scale reads 3.50N. find the density of the object.

asked by gosa on August 16, 2013
4. PHYSICS

A solid object has a weight of 13.62 N. When it is suspended from a scale and submerged in water, the scale reads 1.54 N. Find the density of the object (use pwater = 1000 kg/m3).

asked by Anonymous on October 2, 2018
5. Physics

You decide to repeat Archimedes experiment and determine the density of a candle holder. you suspend it from a spring scale and scale reads 8.0N. You then lower the holder into a tub of water until completely submerged and it

asked by eduardo on February 7, 2017
6. Intro to Physics

The gravitational force exerted on a solid object is 5.15 N as measured when the object is suspended from a spring scale. When the suspended object is submerged in water, the scale reads 4.00 N. Find the density of the object.

asked by Amy on November 7, 2012
7. physics

a metal object is suspended from a spring balance scale. the scale reads 800 N when it is suspended in air and 700 N when the object is completely submerged in water. find the buoyant force, the volume and the density of the

asked by ryan on February 3, 2015
8. Physics

An object has a weight of 0.852 N. It is suspended from a scale, which reads 0.749 N when the piece is submerged in water. What is the volume of the piece of metal?

asked by Robb on January 28, 2012
9. Physics

An object has a weight of 0.838 N. It is suspended from a scale, which reads 0.705 N when the piece is submerged in water. What are the volume and density of the piece of metal?

asked by Tor on January 27, 2012
10. Physics

An object weighing 400.0g in air is immersed in water after being tied to a string connected to a balance. The scale now reads 364.6g. a.) Find the loss of weight(in gram of weight) when completely submersed in water. b.) Find the

asked by Megan on December 5, 2012

More Similar Questions