Physics High School

an object weights 0.250 kgf in air 0.150 in water and 0.125 in an oil.find out the density of the object and the oil​

Answers

Answer 1

Answer:

1) The density of the object = 2500 kg/m³

2) The density of the oil = 1250 kg/m³

Explanation:

1) The information relating to the question are;

The mass of the object in air = 0.250 kgf

The mass of the object in water = 0.150 kgf

The mass of the object in the oil  = 0.125 kgf

By Archimedes's principle, we have;

The upthrust on the object in water = Mass in air - mass in water = The weight of the water displaced

The upthrust on the object in water = 0.250 - 0.150 = 0.1 kgf

∴ The weight of the water displaced = 0.1 kgf

Given that the object is completely immersed in the water, we have;

The volume of the water displaced = The volume of the object

The volume of 0.1 kg of water water displaced = Mass of the water/(Density of water)

The volume of 0.1 kg of water = 0.1/1000 = 0.0001 m³

The density of the object = (Mass in air)/ volume = 0.250/0.0001 = 2500 kg/m³

The density of the object = 2500 kg/m³

2) Whereby the mass of the object in the oil = 0.125 kgf

The upthrust of the oil = The weight of the oil displaced

The upthrust of the oil on the object = Mass of the object in air - mass of the object in the oil

The upthrust of the oil on the object = 0.250 - 0.125 = 0.125 kgf

The weight of the oil displaced = The upthrust of the oil

Given that the volume of the oil displaced = The volume of the oil, we have;

The volume of the oil displaced = 0.0001 m³

The mass of the 0.0001 m³ = 0.125 kg

Therefore the density of the oil = 0.125/0.0001 = 1250 kg/m³.

The density of the oil = 1250 kg/m³.

Related Questions

What two factors determine how much potential energy an object has?

Answers

Answer:

The mass of the object and its height in the gravitational field of the Earth.

Explanation:

If we are talking about gravitational potential energy which is defined as:

[tex]U=m\,*\,g\,*\,h[/tex]

being "m" the object's mass, "g" the acceleration due to gravity, and "h" the height at which the object is located relative to the conventionally picked level for zero of potential energy.

As long as the value of "g" is constant, the only two variables that determine the gravitational potential energy are the mass (m) of the object and its relative height (h).

Answer:

The objects weight and height above Earth's surface

Explanation:

K12 :)

Other Questions
How has your learning inside and outside of the classroom changed your perspective about experiences you have in school and life in general Please help!Much appreciated! What two factors determine how much potential energy an object has? A project has estimated annual net cash flows of $56,600. It is estimated to cost $339,600.Required:Determine the cash payback period. Evaluate. Write in standard form. The sum of three consecutive multiples of 7 is 777 find these multiples If two of the ordered pairs was removed which two data points will cause the correlation to decrease the most? Select Two points1) Data point A2) Data point B3) Data point C4) Data point D You are hiking in a canyon and you notice an echo. You decide to let out a yell and notice it took 2 seconds before you heard the echo of your yell. How far away is the canyon wall that reflected your yell The chief business officer of a construction equipment company arranges a loan of $9,300, at 12 1 /8 % interest for 37.5 months. Find the amount of interest. (Round to the nearest cent) a. $2,761.21 b. $3,583.83 c. $3,523.83 d. $3,722.47 An evergreen nursery usually sells a certain shrub after 9 years of growth and shaping. The growth rate during those 9 years is approximated by dh/dt = 1.8t + 3, where t is the time (in years) and h is the height (in centimeters). The seedlings are 10 centimeters tall when planted (t = 0). (a) Find the height after t years. h(t) = (b) How tall are the shrubs when they are sold? cm Dyesss book was published when the war was still being fought. Beck and Burgos were interviewed in the 1990s, five decades after the war. How did Dyesss account of the Bataan Death March differ from Becks and Burgoss accounts? How were the accounts similar? Describe your answer in at least three sentences. The probability density function for random variable W is given as follows: Let x be the 100pth percentile of W and y be the 100(1 p)th percentile of W, where 0 Find f(x) and g(x) so the function can be expressed as y = f(g(x)). (1 point) [tex]y=\frac{7}{x^{2} } +10[/tex] Which of the following was NOT true of the Catholic Church during theMiddle Ages?A. It was institutionalized throughout Europe by the popes.B. It promoted tolerance of other religions.C. Monasteries brought Christianity to masses of peasants. Point E lies within rectangle ABCD. If AE = 6, BE = 7, and CE = 8, what is the length of DE? Variance 0.7775Find the standard deviation (hint: the standard deviation is the square root of the variance) A line runs tangent to a circle at the point (4, 2). The line runs through the origin. Find the slope of the tangent line.