Buoyance A rock measures on a scale at 235.0 grams ± 0.5 grams, when the rock...
Buoyance
A rock measures on a scale at 235.0 grams ± 0.5 grams, when the rock is submersed in water the scale reads 200.0 ± 0.5 grams. Calculate the specific gravity of the rock, with uncertainty Calculate the volume of the rock, with uncertainty.
You dunk that rock into a mysterious green goo, the scale reads 220.0 grams, what is the density of the fluid? (no uncertainty necessary)
Homework Answers
mass of the rock in air mo = 235 +/- 0.5 g
mass of water in water mw = 200 +/- 0.5 g
loss of weight in water is equal to weight of water displaced
Volume of water displaced = (mo - mw ) cc ( density of water = 1 gm/cc)
= volume of the rock
density of rock dr = mo / (mo - mw ) gm /cc
specific gravity of rock = dr /dw = mo / (mo - mw )
= 235/(235-200) = 6.71
235 +/- 0.5 = 235 +/- 0.2 %
uncertainty in denominator = 0.5 +0.5 = 1
i.e 35 +/-1 = 35 +/- 2.86 %
uncertainty for SG = 0.2 % + 2.86% = 3.06 %
SG = 6.71 +/- 3.06 % = 6.71 +/- 0.21
volume of the rock = (235 +/-0.5) - (200 +/- 0.5)
= 35.0 +/- 1.0 gm/cc
when rock is sunk in goo loss of weight = Vr * dg ( dg density of goo)
= 235 - 220 = 15 g
density of goo = 15/35 = 0.43 gm/cc
Add Answer to:
Buoyance
A rock measures on a scale at 235.0 grams ± 0.5 grams, when the
rock...
7. A solid rock ,suspended in air by a spring scale, has a measured weight of...
7. A solid rock ,suspended in air by a spring scale, has a measured weight of 72 x(# N) newton. When the rock is submerged in water, scale reads 1/3 x(#N) newton. What is a specific density of the rock? Density of water pw=1000 kg/m"; SG= Prock /pw ; B= pw Vg; a) None of these is true b)4.55 c)5.99 d) 1.22 e)2.42
10- An object hanging on a scale reads 24.0-g when submerged in water, but 48.0-g when...
10- An object hanging on a scale reads 24.0-g when submerged in water, but 48.0-g when submerged in oil (specific gravity 0.80). Find density of the object. (3 pts)
3. Suppose you have a rock with a mass of 305 g. When attached to a...
3. Suppose you have a rock with a mass of 305 g. When attached to a spring scale and lowered completely into water the spring scale reads Fe 2.10 N. Note that this reading is significantly lower than the rock's weight Fo Mg (3 N), because of the buoyant force helping to support it. From this information, calculate the following: (a) Fe: the magnitude of the buoyant force exerted on the rock. Use N2L in conjunction with the FBD shown...
can you help me figure out the following: part a: Calculate the specific gravity for aluminum...
can you help me figure out the following:
part a: Calculate the specific gravity for aluminum and for
brass.
part b: Calculate the specific gravity for cork.
part c: Calculate the specific gravity of the isopropyl
alcohol.
Experiment 9 Specific Gravity (Archimedes Principle) Read the Theory section on pages 9-2 & 9-3. Specific gravity is defined as the density (mass per unit volume) of a substance relative to the density of (liquid) water: s p/po, where pe is the density...
A scale reads 87 N when a piece of aluminum is hanging from it. What does...
A scale reads 87 N when a piece of aluminum is hanging from it. What does it read when it is lowered so that the aluminum is submerged in water? The density of alluminum is 2700 kg/mº Use g = 9.8 m/s2 Calculate answer to two decimals. QUESTION 3 3 point Weight and g: At a distance of 14,000 km from the center of Planet Z- 99, the acceleration due to gravity is 32 m/s2. What is the acceleration due...
31 AL Figure P9.28 it 29. A sample of an unknown material appears to weigh 300....
31
AL Figure P9.28 it 29. A sample of an unknown material appears to weigh 300. N in air and 200. N when immersed in alcohol of specific grav- ity 0.700. What are (a) the volume and (b) the density of the material 30, An object weighing N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 265 N. Immersed in oil, the o object appears to weigh 275...
The mass is 25 grams. Please label and put a box around the solution. Purpose: To calculate the apparent weight of a mass when immersed in water. Students will also have the opportunity to learn how t...
The
mass is 25 grams. Please label and put a box around the
solution.
Purpose: To calculate the apparent weight of a mass when immersed in water. Students will also have the opportunity to learn how to use calipers to accurately measure lenghs. Background: Archimedes discovered that he could find the density of an object by comparing it's weight o its apparent weight when immersed in water (see example 10-8 in he textbook). When mmersed, the buoyancy due to the...
I need to write a conclusion for this lab. Based off these results what kinds of...
I need to write a conclusion for this lab. Based off these
results what kinds of conclusions can be drawn?
S OY Orre tes. A, B. Color, pH, Specific Gravity, and Electrolytes "Normal Urine Specimen" Test A. Color I clear "Abnormal Urine Specimen" slightly cloudy PH 2 1.10 gime! Specific gravity 0.70 glume - B. Electrolytes (Indicate absent - present +, strongly present ++) nornal Nat CI SO,2- PO,- 219 C-F. Glucose, Ketone Bodies, Protein, and Urobilinogen "Normal Urine Specimen"...
What are the instruments that have been utilized for the review article discussions? ` 1. Introduction...
What are the instruments that have been utilized for the
review article discussions?
`
1. Introduction In recent years, nanoclays have been the object of particular interest for many scientists and researchers in chemistry, physics, engineering and biology due to their excellent properties as well as their sustain- ability [1-3]. For instance, they represent the starting point to the de velopment of smart materials for drug delivery (4-9), food packaging [10-12), environmental remediation and wastewater treatment [13], cultural heritage [14–17and...
help please? this was the only other information given REPORT SHEET Determination of the Solubility-Product Constant...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
7. A solid rock ,suspended in air by a spring scale, has a measured weight of 72 x(# N) newton. When the rock is submerged in water, scale reads 1/3 x(#N) newton. What is a specific density of the rock? Density of water pw=1000 kg/m"; SG= Prock /pw ; B= pw Vg; a) None of these is true b)4.55 c)5.99 d) 1.22 e)2.42
10- An object hanging on a scale reads 24.0-g when submerged in water, but 48.0-g when submerged in oil (specific gravity 0.80). Find density of the object. (3 pts)
3. Suppose you have a rock with a mass of 305 g. When attached to a spring scale and lowered completely into water the spring scale reads Fe 2.10 N. Note that this reading is significantly lower than the rock's weight Fo Mg (3 N), because of the buoyant force helping to support it. From this information, calculate the following: (a) Fe: the magnitude of the buoyant force exerted on the rock. Use N2L in conjunction with the FBD shown...
can you help me figure out the following:
part a: Calculate the specific gravity for aluminum and for
brass.
part b: Calculate the specific gravity for cork.
part c: Calculate the specific gravity of the isopropyl
alcohol.
Experiment 9 Specific Gravity (Archimedes Principle) Read the Theory section on pages 9-2 & 9-3. Specific gravity is defined as the density (mass per unit volume) of a substance relative to the density of (liquid) water: s p/po, where pe is the density...
A scale reads 87 N when a piece of aluminum is hanging from it. What does it read when it is lowered so that the aluminum is submerged in water? The density of alluminum is 2700 kg/mº Use g = 9.8 m/s2 Calculate answer to two decimals. QUESTION 3 3 point Weight and g: At a distance of 14,000 km from the center of Planet Z- 99, the acceleration due to gravity is 32 m/s2. What is the acceleration due...
31
AL Figure P9.28 it 29. A sample of an unknown material appears to weigh 300. N in air and 200. N when immersed in alcohol of specific grav- ity 0.700. What are (a) the volume and (b) the density of the material 30, An object weighing N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 265 N. Immersed in oil, the o object appears to weigh 275...
The
mass is 25 grams. Please label and put a box around the
solution.
Purpose: To calculate the apparent weight of a mass when immersed in water. Students will also have the opportunity to learn how to use calipers to accurately measure lenghs. Background: Archimedes discovered that he could find the density of an object by comparing it's weight o its apparent weight when immersed in water (see example 10-8 in he textbook). When mmersed, the buoyancy due to the...
I need to write a conclusion for this lab. Based off these
results what kinds of conclusions can be drawn?
S OY Orre tes. A, B. Color, pH, Specific Gravity, and Electrolytes "Normal Urine Specimen" Test A. Color I clear "Abnormal Urine Specimen" slightly cloudy PH 2 1.10 gime! Specific gravity 0.70 glume - B. Electrolytes (Indicate absent - present +, strongly present ++) nornal Nat CI SO,2- PO,- 219 C-F. Glucose, Ketone Bodies, Protein, and Urobilinogen "Normal Urine Specimen"...
What are the instruments that have been utilized for the
review article discussions?
`
1. Introduction In recent years, nanoclays have been the object of particular interest for many scientists and researchers in chemistry, physics, engineering and biology due to their excellent properties as well as their sustain- ability [1-3]. For instance, they represent the starting point to the de velopment of smart materials for drug delivery (4-9), food packaging [10-12), environmental remediation and wastewater treatment [13], cultural heritage [14–17and...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
Most questions answered within 3 hours.
-
In the following reaction, which element is undergoing
oxidation: Na2SO3 + N2O --> N2 + Na2SO4...
asked 21 minutes ago -
Which of the following pairs of ions have the same electron
configuration?
I: Br− and Se2−...
asked 2 hours ago -
The Foremost Composite Materials Company is planning a two-day
sales conference for October 19-20. The conference...
asked 3 hours ago -
3) Illustrate the observed pattern of relatedness of organisms
versus adaptations to specific conditions. This means...
asked 3 hours ago -
In winter a lake has a 0.35 m thick ice layer over 1.10 m of
water....
asked 4 hours ago -
Assuming the following has been encrypted with a Vigenere cipher
below, use the method(s) and assumptions...
asked 4 hours ago -
How would I use switch statements to write a program that will
take an input of...
asked 4 hours ago -
Imagine a reaction in which methane gas combusts at a constant
pressure of 1 atm and...
asked 4 hours ago -
Two parallel wires (each 12 m in length) are separated by a
distance of 0.065 m...
asked 4 hours ago -
Suppose there were three masses at the corner of uniform
equilateral triangle. The masses are m1...
asked 4 hours ago -
Situation: A building that is 618 m above the ground floor. How
many times would a...
asked 5 hours ago -
help me and discuss one successful and one
unsuccessful international company/busines in Indonesia.whyit
succeed and why...
asked 5 hours ago